Juvenile fish are important prey for marine birds and mammals. During June 2021, three juvenile fish were caught during surface water sampling near the Isles of Shoals and were identified as red hake (Urophycis chuss), white hake (Urophycis tenuis) or fourbeard rockling (Enchelyopus cimbrius), which are morphologically similar species (Marancik et al. 2020). These three species are prey of the terns (Gemma Clucas, Elizabeth Craig, pers. comm.) and red and white hake are prey of the seals (Veo et al., 2021) found at the Isles of Shoals. Juvenile red and white hake spend their first months drifting at or near surface water, sometimes under floating eelgrass or rockweed, reaching ~10 cm by fall (Steiner et al., 1982). Juvenile fourbeard rockling also spend their first months at or near surface water (Bigelow and Schroeder, 1953). Red and white hake may be less nutritious than other seal and tern prey such as Atlantic herring (Clupea harengus) and American sand lance (Ammodytes americanus), yet if they are common at the water surface, may make an important contribution to these predators’ diets, similar to prey patterns for Steller sea lions in southeast Alaska (Sigler et al., 2009). During the 2021 sampling, eight neuston net tows were completed during surface water sampling. The intent of this project is to continue this sampling and to characterize the juvenile fish near the Isles of Shoals.
A neuston net was deployed to sample juvenile fish at the water surface. The net is a standard configuration of 1-m wide, 0.5-m deep and 3-m long with 330-micron mesh and cod end. This neuston net configuration is the standard net used by the NOAA Northeast Fisheries Science Center (pers. comm. Jerry Prezioso, NOAA Northeast Fisheries Science Center, 18 March 2020). Although neuston nets are not routinely used during standard surveys of the northeast U.S. shelf, using this net provides comparable data to data collected by the NOAA Northeast Fisheries Science Center. The neuston net was deployed from a davit on the R/V John B. Heiser and occasionally, from the vessel crane on the R/V John M. Kingsbury. The net was deployed off the side of the vessel, 5-minute tow duration, with the vessel turning slowly during the tow to keep the net outside of the vessel wake. Following retrieval, a washdown pump and hose were used to the wash net contents into the cod end and to clean the net. Following collection, the samples were stored in 1-liter wide mouth plastic jars, returned to the lab and if necessary, refrigerated overnight before processing the samples the next day.
Sampling occurred during low light periods (near dusk) when juvenile fish are more likely to be near the surface. In 2022, sampling primarily occurred in a restricted passage where fish may be concentrated (the channel between Smuttynose and Appledore islands, where juvenile fish were found in 2021). In 2023, sampling primary occurred near the tern colony at White and Seavey islands and near the seal colony at Duck Island and adjacent ledges. A sampling period consisted of three tows, lasted one hour, and occurred weekly for eight weeks in 2022 and for nine weeks in 2023.
In the lab, samples were filtered through a 4-mm sieve to remove debris (e.g., algae) and into a 330-micron sieve (the same mesh size as the neuston net). Fish were individually picked from the 330-micron sieve and transferred to a watch glass for identification. A dissecting scope was used to identify species and to count and length the fish. Images of the catch were recorded often in 2022 and routinely in 2023 for species verification and electronic length measurements using the open-source software Image J. Zooplankton usually were identified to general taxa (e.g., copepods) and their abundance approximated (e.g., many).
In addition, a beach seine was deployed to sample another habitat where juvenile fish commonly are found, coastal eelgrass habitats. The beach seine is a standard configuration with a 37-m long variable-mesh beach seine that tapered from 5-m wide at the center to 1-m wide at the ends. Outer panels were each 10-m of 32-mm stretched mesh, intermediate panels were each 4-m of 6-mm square mesh, and the bunt was 9-m of 3.2-mm square mesh. The seine had a lead line and a float line so that the bottom contacted the substrate and the top floated. This beach seine is a standard configuration used on the U.S. and Canada Pacific coast and is an effective tool for sampling eelgrass habitat (e.g., Johnson et al. 2003). This beach seine is somewhat larger than beach seines used by NH Fish and Game Department to survey estuarine juvenile finfish (30.5 m long and 1.8 m high with 6.4 mm mesh, with a bag where the height, width, and depth each measure 1.8 m) (NH Fish and Game, 2022).
We set the beach seine as a ”round haul”. The net was deployed off the bow of an inflatable. Seine deployment began at the beach, setting a line attached to one end of the seine, motoring away from the beach for 30-40 m, turning parallel to the beach and starting the seine deployment. Once the seine was deployed (parallel to the beach), a line attached to the other end of the seine was brought back to the beach. At this point, the seine lies parallel to the beach and 30-40 m away. Three to four people began hauling each line onto the beach (six to eight people total), steadily pulling the seine through the water until the entire seine is on the lower beach. Following retrieval, the catch was removed from the seine and placed in buckets. The catch was identified to species, counted and for a subsample of each fish species, the length was measured. Beach seine sampling occurred during daylight hours following a low tide, so that the seine could reach and sample the eel grass habitat. Two locations were sampled, Fort Foster Beach, Maine and New Castle Beach, New Hampshire in 2022 and New Castle beach in 2023. A sampling period typically consisted of one beach seine deployment.
Juvenile fish identification can be difficult, especially for the earliest larval stages. Physical characteristics change quickly during early life and species often are morphologically similar (e.g., Marancik et al. 2020). For example, larvae of red and white hake Urophycis sp. have 2-3 pelvic fin rays whereas fourbeard rockling have 4-7 (Fahay 1983), seemingly diagnostic, but sometimes the number of rays can be difficult to count if fin membranes are torn (pers. observation). Some species were initially misidentified in 2022 and species identification improved in 2023. Taxonomic experts at NOAA Northeast Fisheries Science Center (Katey Marancik and Elizabeth Broughton) have been expert and willing teachers. Once fish advance from the larval to the juvenile fish stage, identification is much easier.
A total of 31 neuston tows were completed during June and July 2022 at approximately weekly intervals (Figure 1). Neuston tows were completed south (in the channel between Appledore and Smuttynose islands) and east of Appledore Island (Figure 2). The most common fish species caught were red hake or white hake (hereafter “hake”) or fourbeard rockling (Figure 3). Larvae and juveniles of red and white hake are similar (Fahay 1983, Marancik et al. 2020) and were not differentiated in this study. Larvae and juveniles of fourbeard rockling also are similar to hake and were distinguished from one another in 2023 but not in 2022. Several individuals of two other species occasionally were caught, cunner (Tautogolabrus adspersus) in early July and Atlantic mackerel (Scomber scombrus) in late July. The maximum number of fish caught in one sampling day (typically three neuston tows) was 94 (Figure 3). Fish catches were minimal until the fourth week of June and remained elevated thereafter. The length range of all species was 5 - 28 mm TL; most fish were 5-20 mm TL (Figure 4).
A total of 28 neuston tows were completed during June, July and August 2023 at approximately weekly intervals (Figure 1). Neuston tows were completed near the tern colony at White and Seavey islands and near the seal colony at Duck Island and adjacent ledges (Figure 2). The most common fish species caught were hake or fourbeard rockling (Figure 3). The maximum number of fish caught in one sampling day (three neuston tows) was 11. Fish catches were initially nil, increased in mid-July and remained elevated thereafter. Fish catches were smaller in 2023 than in 2022. The length range of all species was 2 - 36 mm TL; most fish were 8-21 mm TL (Figure 4).
A total of five beach seine sets were completed during 2021-2023, two each in 2021 and 2023 and one in 2022 (Figure 1). The beach seine sets were located at the mouth of the Piscataqua River. Most of the beach seines were completed at New Castle Beach, New Hampshire and one, in 2021, was completed at Fort Foster Beach, Maine (Figure 2). The most common fish species caught was sand lance, due to one large sample of about 2,000 juveniles (Figure 3). Other common fish species were Atlantic herring, Atlantic tomcod (Microgadus tomcod) and rainbow smelt (Osmerus mordax). The maximum number of fish caught in one beach seine set was about 2,000 (Figure 2). Only one juvenile flatfish was caught at Fort Foster Beach in 2021 whereas on the same day, about 20 juvenile fish were caught at New Castle Beach. Too few beach seine sets were completed to measure seasonal catch patterns (Figure 1). The length range of all species was 15 - 210 mm TL; most fish were 30-120 mm TL (Figure 4).
Sampling effort (number of gear deployments) by gear type (neuston net near the Isles of Shoals; beach seine in the mouth of the Piscataqua River), day of year and year during the summers of 2021-2023.
Sample locations by gear type (neuston net primarily near the Isles of Shoals, upper panel; beach seine in the mouth of the Piscataqua River, lower panel) during the summers of 2021-2023.
Fish catch by species, day of year and year caught by gear type (neuston net near the Isles of Shoals, upper panel; beach seine in the mouth of the Piscataqua River, lower panel) during the summers of 2021-2023.
Fish total length (mm) by species, day of year and year caught by gear type (neuston net near the Isles of Shoals, upper panel; beach seine in the mouth of the Piscataqua River, lower panel) during the summers of 2021-2023.
Two gear types were used to sample two different habitats. The
neuston net was used to sample surface water near the Isles of Shoals.
The beach seine was used to sample coastal eelgrass habitat in the mouth
of the Piscataqua River. The species and sizes caught by the two
sampling gears overlapped little. Only one species, cunner, was caught
on at least two occasions by both neuston net and beach seine (Figure
5). Two species, stickleback (Gasterosteus aculeatus) and
northern pipefish (Syngnathus fuscus) were sometimes caught by
beach seine but only once by neuston net. In addition, fish caught by
neuston net were smaller than fish caught by beach seine (Figure 6).
These differences reflect the different species and life stages
inhabiting the habitats sampled by the two gears:
* larvae and early young of the year juveniles in the surface water
sampled by the neuston net;
* young of the year and likely age one and possibly older juveniles in
the eelgrass habitat sampled by the beach seine.
Fish catch by species and gear type (beach seine samples of coastal eelgrass habitat in the mouth of the Piscataqua River, left panel; neuston net samples of surface water near the Isles of Shoals, right panel) during the summers of 2021-2023.
Fish total length (mm) by gear type (beach seine samples of coastal eelgrass habitat in the mouth of the Piscataqua River, upper panel; neuston net samples of surface water near the Isles of Shoals, lower panel) during the summers of 2021-2023.
The juvenile fish project complements existing research projects at the Isles of Shoals and nearby and provided opportunities for collaboration. These include Aliya Caldwell’s Ph.D. research on tern foraging, long-term tern research at White and Seavey islands led by Dr. Elizabeth Craig, long-term seal research at Duck Island led by Dr. Andrea Bogomolni and the fisheries internship collecting underwater camera information on fish abundance and diversity, which has been led by Dr. Easton White, Dr. Jennifer Dijkstra, Owen Nichols, and Dr. Lindsey Williams.
Observations of the abundance and size of juvenile fish by week and location. See the appendix for the database of sample position, catch, and length.
Thanks to the Shoals Marine Laboratory for funding this research and providing me with the opportunity to be a Scientist in Residence for 2022 and 2023. The undergraduate researchers were great and I had fun watching them grow as scientists and guiding their research. Thanks to the students, undergraduate researchers, staff and faculty who helped to catch and process samples including from the Marine Ecosystem Research and Management class which I teach with Drs. Ebett Siddon and Chris Siddon. Thanks also to the taxonomic experts at the NOAA Northeast Fisheries Science Center, Katey Marancik and Elizabeth Broughton, who have been expert and willing teachers, and an oceanographer at the NOAA Northeast Fisheries Science Center, Jerry Prezioso, who ably answered questions about the NOAA Northeast Fisheries Science Center sampling methods, data and data availability. Thanks also to Dr. Rebecca Atkins, my fellow Scientist in Residence in 2023, for introducing me to the interactive plotting used in the html version of this report.
Bigelow, H.B. and Schroeder, W.C., 1953. Fishes of the Gulf of Maine (No. 592). US Government Printing Office. link
Fahay, M.P. 1983. Guide to the early stages of marine fishes occurring in the western North Atlantic Ocean, Cape Hatteras to the southern Scotian Shelf. J. Northwest Atlantic Fishery Science, 4:1-423. Updated online version available at link
Marancik, K.E., Richardson, D.E. and Konieczna, M., 2020. Updated morphological descriptions of the larval stage of Urophycis (Family: Phycidae) from the Northeast United States continental shelf. Copeia, 108(1), pp.83-90. link
New Hampshire Fish and Game Department. 2022. Estuarine survey of juvenile finfish. link
Johnson, S.W., Murphy, M.L., Csepp, D.J., Harris, P.M. and Thedinga, J.F. 2003. A survey of fish assemblages in eelgrass and kelp habitats of southeastern Alaska. US Dept Commerce, NOAA Tech. Memo. NMFS-AFSC-139, 39 p. link
Sigler, M.F., Tollit, D.J., Vollenweider, J.J., Thedinga, J.F., Csepp, D.J., Womble, J.N., Wong, M.A., Rehberg, M.J. and Trites, A.W. 2009. Steller sea lion foraging response to seasonal changes in prey availability. Mar. Ecol. Prog. Ser. 388: 243-261. link
Steiner, W.W., Luczkovich, J.J. and Olla, B.L. 1982. Activity, Shelter Usage, Growth and Recruitment of Juvenile Red Hake Urophycis chuss. Mar. Ecol. Prog. Ser. 7: 125-135. link
Veo, J., Berube, J., Bogomolni, A., Lysiak, N. and Sette, L. 2022. Characterizing the diet of stranded harbor seals (Phoca vitulina concolor) in the Gulf of Maine. Presentation to the Shoals Marine Laboratory class “Marine Ecosystem Research and Management”.
Sample locations by gear type (neuston net near the Isles of Shoals; beach seine in the mouth of the Piscataqua River) during the summers of 2021-2023.
| Event | Gear | Date | Start time (HHMM) | Latitude (DD.DDDDD) | Longitude (DD.DDDDD) | Bottom depth (m) |
|---|---|---|---|---|---|---|
| 20 | neuston net | 2021-06-17 | 1345 | 42.98733 | -70.60583 | 36 |
| 21 | neuston net | 2021-06-17 | 1404 | 42.98667 | -70.60183 | 30 |
| 22 | neuston net | 2021-06-17 | 1423 | 42.98690 | -70.60017 | 30 |
| 25 | neuston net | 2021-06-19 | 1940 | 42.98715 | -70.60242 | 40 |
| 26 | neuston net | 2021-06-19 | 2005 | 42.98430 | -70.60653 | 12 |
| 27 | neuston net | 2021-06-19 | 2018 | 42.98267 | -70.61588 | 14 |
| 30 | neuston net | 2021-06-24 | 1143 | 43.06800 | -70.70985 | 10 |
| 31 | neuston net | 2021-06-24 | 1156 | 43.06883 | -70.71063 | 8 |
| 35 | neuston net | 2022-06-04 | 1356 | 42.98597 | -70.60865 | 12 |
| 36 | neuston net | 2022-06-04 | 1419 | 42.98558 | -70.61025 | 6 |
| 37 | neuston net | 2022-06-04 | 1431 | 42.98348 | -70.61420 | 14 |
| 38 | neuston net | 2022-06-04 | 1445 | 42.98257 | -70.61368 | 7 |
| 39 | neuston net | 2022-06-04 | 1519 | 42.99150 | -70.61018 | 14 |
| 40 | neuston net | 2022-06-04 | 1529 | 42.99397 | -70.60957 | 28 |
| 41 | neuston net | 2022-06-04 | 1542 | 42.99242 | -70.60562 | 27 |
| 42 | neuston net | 2022-06-07 | 845 | 42.98527 | -70.60958 | 10 |
| 43 | neuston net | 2022-06-07 | 901 | 42.98380 | -70.61270 | 12 |
| 44 | neuston net | 2022-06-11 | 1857 | 42.98432 | -70.61303 | 8 |
| 45 | neuston net | 2022-06-11 | 1908 | 42.98385 | -70.61460 | 13 |
| 46 | neuston net | 2022-06-11 | 1920 | 42.98720 | -70.60847 | 13 |
| 47 | neuston net | 2022-06-11 | 1930 | 42.98407 | -70.60977 | 15 |
| 48 | neuston net | 2022-06-16 | 1926 | 42.98360 | -70.61130 | 10 |
| 49 | neuston net | 2022-06-16 | 1941 | 42.98392 | -70.61137 | 14 |
| 50 | neuston net | 2022-06-16 | 1954 | 42.98362 | -70.61190 | 12 |
| 51 | neuston net | 2022-06-21 | 1858 | 42.98278 | -70.61408 | 12 |
| 52 | neuston net | 2022-06-21 | 1908 | 42.98277 | -70.61410 | 21 |
| 53 | neuston net | 2022-06-21 | 1921 | 42.98565 | -70.60933 | 12 |
| 55 | neuston net | 2022-07-02 | 1859 | 42.98265 | -70.61888 | 18 |
| 56 | neuston net | 2022-07-02 | 1913 | 42.98360 | -70.61020 | 8 |
| 57 | neuston net | 2022-07-02 | 1923 | 42.98733 | -70.60747 | 13 |
| 58 | neuston net | 2022-07-11 | 1912 | 42.98345 | -70.61237 | 8 |
| 59 | neuston net | 2022-07-11 | 1930 | 42.98530 | -70.60178 | 24 |
| 60 | neuston net | 2022-07-11 | 1938 | 42.98417 | -70.60613 | 7 |
| 63 | neuston net | 2022-07-16 | 1917 | 42.98383 | -70.61117 | 13 |
| 64 | neuston net | 2022-07-16 | 1928 | 42.98467 | -70.60767 | 21 |
| 65 | neuston net | 2022-07-16 | 1943 | 42.98333 | -70.61500 | 12 |
| 66 | neuston net | 2022-07-23 | 1903 | 42.98217 | -70.62033 | NA |
| 67 | neuston net | 2022-07-23 | 1915 | 42.98360 | -70.61200 | NA |
| 68 | neuston net | 2022-07-23 | 1926 | 42.98603 | -70.60777 | NA |
| 69 | neuston net | 2023-06-11 | 1905 | 42.99198 | -70.61875 | 17 |
| 70 | neuston net | 2023-06-11 | 1917 | 42.99617 | -70.63092 | 17 |
| 71 | neuston net | 2023-06-11 | 1927 | 42.99622 | -70.62693 | 31 |
| 72 | neuston net | 2023-06-17 | 1905 | 42.98415 | -70.61935 | 15 |
| 73 | neuston net | 2023-06-17 | 1912 | 42.98162 | -70.61913 | 26 |
| 74 | neuston net | 2023-06-17 | 1925 | 42.98018 | -70.61648 | 16 |
| 75 | neuston net | 2023-06-23 | 1927 | 42.96913 | -70.62217 | 11 |
| 76 | neuston net | 2023-06-23 | 1936 | 42.96945 | -70.62210 | 12 |
| 77 | neuston net | 2023-06-23 | 1947 | 42.96945 | -70.62210 | 11 |
| 79 | neuston net | 2023-07-01 | 1921 | 42.99975 | -70.59697 | 26 |
| 80 | neuston net | 2023-07-01 | 1934 | 43.00265 | -70.59855 | 18 |
| 81 | neuston net | 2023-07-01 | 1947 | 43.00705 | -70.59780 | 24 |
| 83 | neuston net | 2023-07-08 | 1930 | 42.96892 | -70.62050 | 21 |
| 84 | neuston net | 2023-07-08 | 1942 | 42.97050 | -70.62508 | 14 |
| 85 | neuston net | 2023-07-08 | 1953 | 42.96912 | -70.62880 | 12 |
| 88 | neuston net | 2023-07-15 | 1930 | 43.00700 | -70.60575 | 12 |
| 89 | neuston net | 2023-07-15 | 1940 | 43.00705 | -70.59940 | 20 |
| 90 | neuston net | 2023-07-15 | 1952 | 43.00443 | -70.59665 | 15 |
| 93 | neuston net | 2023-07-26 | 1930 | 42.96498 | -70.62620 | 14 |
| 94 | neuston net | 2023-07-26 | 1946 | 42.96793 | -70.63043 | 23 |
| 95 | neuston net | 2023-07-26 | 1956 | 42.96928 | -70.62740 | 7 |
| 100 | neuston net | 2023-07-29 | 1900 | 43.00213 | -70.60038 | 7 |
| 101 | neuston net | 2023-07-29 | 1911 | 43.00822 | -70.60098 | 9 |
| 102 | neuston net | 2023-07-29 | 1927 | 43.00520 | -70.60998 | 14 |
| 106 | neuston net | 2023-08-05 | 1938 | 42.96962 | -70.62200 | 13 |
| 107 | neuston net | 2023-08-05 | 1948 | 42.97073 | -70.62442 | 18 |
| 108 | neuston net | 2023-08-05 | 1959 | 42.96740 | -70.63102 | 9 |
| 110 | neuston net | 2023-08-12 | 2130 | 42.99249 | -70.61990 | 21 |
| 33 | beach seine | 2021-06-24 | 1315 | 43.06738 | -70.69775 | 3 |
| 34 | beach seine | 2021-06-24 | 1425 | 43.06738 | -70.69775 | 2 |
| 54 | beach seine | 2022-06-23 | 1300 | 43.06795 | -70.71301 | 3 |
| 82 | beach seine | 2023-07-07 | 1030 | 43.06795 | -70.71301 | 3 |
| 105 | beach seine | 2023-08-05 | 930 | 43.06795 | -70.71301 | 3 |
Fish catches by gear type (neuston net near the Isles of Shoals; beach seine in the mouth of the Piscataqua River) during the summers of 2021-2023.
| Event | Gear | Date | Species | Count |
|---|---|---|---|---|
| 20 | neuston net | 2021-06-17 | fish unident | 1 |
| 25 | neuston net | 2021-06-19 | hake/rockling | 2 |
| 26 | neuston net | 2021-06-19 | hake/rockling | 1 |
| 33 | beach seine | 2021-06-24 | rainbow smelt | 2 |
| 33 | beach seine | 2021-06-24 | sandlance | 16 |
| 33 | beach seine | 2021-06-24 | herring | 4 |
| 43 | neuston net | 2022-06-07 | red/white hake | 1 |
| 44 | neuston net | 2022-06-11 | hake/rockling | 1 |
| 49 | neuston net | 2022-06-16 | hake/rockling | 1 |
| 50 | neuston net | 2022-06-16 | hake/rockling | 1 |
| 51 | neuston net | 2022-06-21 | hake/rockling | 18 |
| 51 | neuston net | 2022-06-21 | three-spined stickleback | 1 |
| 52 | neuston net | 2022-06-21 | hake/rockling | 15 |
| 53 | neuston net | 2022-06-21 | hake/rockling | 3 |
| 54 | beach seine | 2022-06-23 | rainbow smelt | 2 |
| 54 | beach seine | 2022-06-23 | sandlance | 2000 |
| 54 | beach seine | 2022-06-23 | herring | 7 |
| 54 | beach seine | 2022-06-23 | red/white hake | 1 |
| 54 | beach seine | 2022-06-23 | emerald shiner | 1 |
| 54 | beach seine | 2022-06-23 | lumpfish | 1 |
| 54 | beach seine | 2022-06-23 | northern pipefish | 1 |
| 54 | beach seine | 2022-06-23 | tomcod | 4 |
| 54 | beach seine | 2022-06-23 | stickleback | 1 |
| 54 | beach seine | 2022-06-23 | pollock | 1 |
| 55 | neuston net | 2022-07-02 | hake/rockling | 23 |
| 55 | neuston net | 2022-07-02 | cunner | 2 |
| 55 | neuston net | 2022-07-02 | daubed shanny | 1 |
| 56 | neuston net | 2022-07-02 | hake/rockling | 12 |
| 57 | neuston net | 2022-07-02 | hake/rockling | 22 |
| 58 | neuston net | 2022-07-11 | fish unident | 16 |
| 59 | neuston net | 2022-07-11 | hake/rockling | 32 |
| 59 | neuston net | 2022-07-11 | cunner | 36 |
| 59 | neuston net | 2022-07-11 | mackerel | 6 |
| 60 | neuston net | 2022-07-11 | fish unident | 4 |
| 65 | neuston net | 2022-07-16 | fish unident | 30 |
| 66 | neuston net | 2022-07-23 | hake/rockling | 6 |
| 66 | neuston net | 2022-07-23 | mackerel | 14 |
| 67 | neuston net | 2022-07-23 | hake/rockling | 15 |
| 67 | neuston net | 2022-07-23 | cunner | 1 |
| 68 | neuston net | 2022-07-23 | hake/rockling | 8 |
| 68 | neuston net | 2022-07-23 | mackerel | 2 |
| 80 | neuston net | 2023-07-01 | red/white hake | 3 |
| 81 | neuston net | 2023-07-01 | red/white hake | 1 |
| 82 | beach seine | 2023-07-07 | rainbow smelt | 3 |
| 82 | beach seine | 2023-07-07 | sandlance | 23 |
| 82 | beach seine | 2023-07-07 | herring | 60 |
| 82 | beach seine | 2023-07-07 | three-spined stickleback | 13 |
| 82 | beach seine | 2023-07-07 | northern pipefish | 2 |
| 82 | beach seine | 2023-07-07 | tomcod | 65 |
| 82 | beach seine | 2023-07-07 | pollock | 7 |
| 82 | beach seine | 2023-07-07 | cunner | 1 |
| 82 | beach seine | 2023-07-07 | winter flounder | 1 |
| 89 | neuston net | 2023-07-15 | fourbeard rockling | 1 |
| 90 | neuston net | 2023-07-15 | fourbeard rockling | 5 |
| 95 | neuston net | 2023-07-26 | fourbeard rockling | 1 |
| 100 | neuston net | 2023-07-29 | hake/rockling | 3 |
| 100 | neuston net | 2023-07-29 | fourbeard rockling | 2 |
| 101 | neuston net | 2023-07-29 | hake/rockling | 3 |
| 101 | neuston net | 2023-07-29 | northern pipefish | 1 |
| 101 | neuston net | 2023-07-29 | fourbeard rockling | 2 |
| 105 | beach seine | 2023-08-05 | rainbow smelt | 17 |
| 105 | beach seine | 2023-08-05 | northern pipefish | 11 |
| 105 | beach seine | 2023-08-05 | tomcod | 22 |
| 105 | beach seine | 2023-08-05 | stickleback | 16 |
| 105 | beach seine | 2023-08-05 | pollock | 4 |
| 105 | beach seine | 2023-08-05 | cunner | 10 |
| 105 | beach seine | 2023-08-05 | sculpin | 4 |
| 106 | neuston net | 2023-08-05 | fourbeard rockling | 2 |
| 107 | neuston net | 2023-08-05 | fourbeard rockling | 2 |
| 108 | neuston net | 2023-08-05 | fourbeard rockling | 1 |
| 110 | neuston net | 2023-08-12 | red/white hake | 6 |
| 110 | neuston net | 2023-08-12 | fourbeard rockling | 2 |
Fish total lengths (mm) by gear type (neuston net near the Isles of Shoals; beach seine in the mouth of the Piscataqua River) during the summers of 2021-2023.
| Event | Gear | Species | Length (mm) | Count |
|---|---|---|---|---|
| 25 | neuston net | hake/rockling | 32 | 1 |
| 25 | neuston net | hake/rockling | 8 | 1 |
| 26 | neuston net | hake/rockling | 35 | 1 |
| 33 | beach seine | herring | 40 | 1 |
| 33 | beach seine | herring | 40 | 1 |
| 33 | beach seine | herring | 40 | 1 |
| 33 | beach seine | herring | 40 | 1 |
| 33 | beach seine | herring | 42 | 1 |
| 33 | beach seine | sandlance | 45 | 1 |
| 33 | beach seine | sandlance | 50 | 1 |
| 33 | beach seine | sandlance | 50 | 1 |
| 33 | beach seine | sandlance | 52 | 1 |
| 33 | beach seine | sandlance | 60 | 1 |
| 33 | beach seine | sandlance | 60 | 1 |
| 33 | beach seine | sandlance | 60 | 1 |
| 33 | beach seine | sandlance | 60 | 1 |
| 33 | beach seine | sandlance | 60 | 1 |
| 33 | beach seine | sandlance | 68 | 1 |
| 33 | beach seine | sandlance | 68 | 1 |
| 33 | beach seine | sandlance | 70 | 1 |
| 33 | beach seine | sandlance | 70 | 1 |
| 33 | beach seine | sandlance | 70 | 1 |
| 33 | beach seine | sandlance | 70 | 1 |
| 33 | beach seine | sandlance | 70 | 1 |
| 33 | beach seine | rainbow smelt | 30 | 1 |
| 33 | beach seine | rainbow smelt | 30 | 1 |
| 43 | neuston net | red/white hake | 8 | 1 |
| 44 | neuston net | hake/rockling | 10 | 1 |
| 49 | neuston net | hake/rockling | 10 | 1 |
| 50 | neuston net | hake/rockling | 6 | 1 |
| 51 | neuston net | three-spined stickleback | 28 | 1 |
| 51 | neuston net | hake/rockling | 6 | 1 |
| 51 | neuston net | hake/rockling | 6 | 1 |
| 51 | neuston net | hake/rockling | 6 | 1 |
| 51 | neuston net | hake/rockling | 6 | 1 |
| 51 | neuston net | hake/rockling | 13 | 1 |
| 51 | neuston net | hake/rockling | 13 | 1 |
| 51 | neuston net | hake/rockling | 13 | 1 |
| 51 | neuston net | hake/rockling | 14 | 1 |
| 51 | neuston net | hake/rockling | 14 | 1 |
| 51 | neuston net | hake/rockling | 14 | 1 |
| 51 | neuston net | hake/rockling | 15 | 1 |
| 51 | neuston net | hake/rockling | 15 | 1 |
| 51 | neuston net | hake/rockling | 15 | 1 |
| 51 | neuston net | hake/rockling | 16 | 1 |
| 51 | neuston net | hake/rockling | 17 | 1 |
| 51 | neuston net | hake/rockling | 17 | 1 |
| 51 | neuston net | hake/rockling | 18 | 1 |
| 51 | neuston net | hake/rockling | 20 | 1 |
| 52 | neuston net | hake/rockling | 10 | 1 |
| 52 | neuston net | hake/rockling | 11 | 1 |
| 52 | neuston net | hake/rockling | 11 | 1 |
| 52 | neuston net | hake/rockling | 11 | 1 |
| 52 | neuston net | hake/rockling | 12 | 1 |
| 52 | neuston net | hake/rockling | 12 | 1 |
| 52 | neuston net | hake/rockling | 13 | 1 |
| 52 | neuston net | hake/rockling | 13 | 1 |
| 52 | neuston net | hake/rockling | 14 | 1 |
| 52 | neuston net | hake/rockling | 14 | 1 |
| 52 | neuston net | hake/rockling | 15 | 1 |
| 52 | neuston net | hake/rockling | 15 | 1 |
| 52 | neuston net | hake/rockling | 16 | 1 |
| 52 | neuston net | hake/rockling | 16 | 1 |
| 52 | neuston net | hake/rockling | 18 | 1 |
| 52 | neuston net | hake/rockling | 23 | 1 |
| 53 | neuston net | hake/rockling | 11 | 1 |
| 53 | neuston net | hake/rockling | 12 | 1 |
| 53 | neuston net | hake/rockling | 16 | 1 |
| 52 | neuston net | hake/rockling | 28 | 1 |
| 54 | beach seine | tomcod | 210 | 1 |
| 54 | beach seine | tomcod | 95 | 1 |
| 54 | beach seine | pollock | 85 | 1 |
| 54 | beach seine | herring | 80 | 1 |
| 54 | beach seine | herring | 92 | 1 |
| 54 | beach seine | herring | 90 | 1 |
| 54 | beach seine | herring | 110 | 1 |
| 54 | beach seine | herring | 80 | 1 |
| 54 | beach seine | herring | 100 | 1 |
| 54 | beach seine | emerald shiner | 110 | 1 |
| 54 | beach seine | lumpfish | 80 | 1 |
| 54 | beach seine | northern pipefish | 130 | 1 |
| 54 | beach seine | tomcod | 90 | 1 |
| 54 | beach seine | tomcod | 80 | 1 |
| 54 | beach seine | red/white hake | 60 | 1 |
| 54 | beach seine | herring | 97 | 1 |
| 54 | beach seine | stickleback | 40 | 1 |
| 54 | beach seine | red/white hake | 63 | 1 |
| 54 | beach seine | sandlance | 47 | 1 |
| 54 | beach seine | sandlance | 58 | 1 |
| 54 | beach seine | sandlance | 51 | 1 |
| 54 | beach seine | sandlance | 55 | 1 |
| 54 | beach seine | sandlance | 64 | 1 |
| 54 | beach seine | sandlance | 48 | 1 |
| 54 | beach seine | sandlance | 60 | 1 |
| 54 | beach seine | sandlance | 72 | 1 |
| 54 | beach seine | sandlance | 57 | 1 |
| 54 | beach seine | sandlance | 56 | 1 |
| 54 | beach seine | sandlance | 60 | 1 |
| 54 | beach seine | sandlance | 67 | 1 |
| 54 | beach seine | sandlance | 54 | 1 |
| 54 | beach seine | sandlance | 58 | 1 |
| 54 | beach seine | sandlance | 63 | 1 |
| 54 | beach seine | sandlance | 60 | 1 |
| 54 | beach seine | sandlance | 57 | 1 |
| 54 | beach seine | sandlance | 55 | 1 |
| 54 | beach seine | sandlance | 60 | 1 |
| 54 | beach seine | sandlance | 60 | 1 |
| 54 | beach seine | sandlance | 61 | 1 |
| 54 | beach seine | sandlance | 48 | 1 |
| 54 | beach seine | sandlance | 64 | 1 |
| 54 | beach seine | sandlance | 58 | 1 |
| 54 | beach seine | sandlance | 52 | 1 |
| 54 | beach seine | sandlance | 70 | 1 |
| 54 | beach seine | sandlance | 58 | 1 |
| 54 | beach seine | sandlance | 58 | 1 |
| 54 | beach seine | sandlance | 65 | 1 |
| 54 | beach seine | sandlance | 58 | 1 |
| 54 | beach seine | sandlance | 49 | 1 |
| 54 | beach seine | sandlance | 43 | 1 |
| 54 | beach seine | rainbow smelt | 108 | 1 |
| 54 | beach seine | rainbow smelt | 135 | 1 |
| 55 | neuston net | hake/rockling | 11 | 1 |
| 55 | neuston net | hake/rockling | 10 | 1 |
| 55 | neuston net | hake/rockling | 12 | 1 |
| 55 | neuston net | hake/rockling | 11 | 1 |
| 55 | neuston net | hake/rockling | 7 | 1 |
| 55 | neuston net | hake/rockling | 5 | 1 |
| 55 | neuston net | hake/rockling | 7 | 1 |
| 55 | neuston net | hake/rockling | 8 | 1 |
| 55 | neuston net | hake/rockling | 8 | 1 |
| 55 | neuston net | hake/rockling | 7 | 1 |
| 55 | neuston net | hake/rockling | 8 | 1 |
| 55 | neuston net | hake/rockling | 8 | 1 |
| 55 | neuston net | hake/rockling | 9 | 1 |
| 55 | neuston net | hake/rockling | 8 | 1 |
| 55 | neuston net | hake/rockling | 6 | 1 |
| 55 | neuston net | hake/rockling | 6 | 1 |
| 55 | neuston net | hake/rockling | 7 | 1 |
| 55 | neuston net | hake/rockling | 9 | 1 |
| 55 | neuston net | hake/rockling | 7 | 1 |
| 55 | neuston net | hake/rockling | 6 | 1 |
| 55 | neuston net | hake/rockling | 6 | 1 |
| 55 | neuston net | cunner | 8 | 1 |
| 55 | neuston net | cunner | 8 | 1 |
| 55 | neuston net | daubed shanny | 11 | 1 |
| 56 | neuston net | hake/rockling | 7 | 1 |
| 56 | neuston net | hake/rockling | 8 | 1 |
| 56 | neuston net | hake/rockling | 8 | 1 |
| 56 | neuston net | hake/rockling | 9 | 1 |
| 56 | neuston net | hake/rockling | 9 | 1 |
| 56 | neuston net | hake/rockling | 10 | 1 |
| 56 | neuston net | hake/rockling | 8 | 1 |
| 56 | neuston net | hake/rockling | 8 | 1 |
| 56 | neuston net | hake/rockling | 8 | 1 |
| 56 | neuston net | hake/rockling | 10 | 1 |
| 56 | neuston net | hake/rockling | 10 | 1 |
| 56 | neuston net | hake/rockling | 7 | 1 |
| 56 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 6 | 1 |
| 57 | neuston net | hake/rockling | 7 | 1 |
| 57 | neuston net | hake/rockling | 5 | 1 |
| 57 | neuston net | hake/rockling | 9 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 7 | 1 |
| 57 | neuston net | hake/rockling | 7 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 10 | 1 |
| 57 | neuston net | hake/rockling | 7 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 7 | 1 |
| 57 | neuston net | hake/rockling | 9 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 8 | 1 |
| 57 | neuston net | hake/rockling | 10 | 1 |
| 57 | neuston net | hake/rockling | 7 | 1 |
| 58 | neuston net | fish unident | 9 | 1 |
| 58 | neuston net | fish unident | 10 | 1 |
| 58 | neuston net | fish unident | 8 | 1 |
| 58 | neuston net | fish unident | 9 | 1 |
| 58 | neuston net | fish unident | 7 | 1 |
| 58 | neuston net | fish unident | 11 | 1 |
| 58 | neuston net | fish unident | 10 | 1 |
| 58 | neuston net | fish unident | 11 | 1 |
| 58 | neuston net | fish unident | 9 | 1 |
| 58 | neuston net | fish unident | 8 | 1 |
| 58 | neuston net | fish unident | 10 | 1 |
| 58 | neuston net | fish unident | 12 | 1 |
| 58 | neuston net | fish unident | 10 | 1 |
| 58 | neuston net | fish unident | 8 | 1 |
| 58 | neuston net | fish unident | 9 | 1 |
| 58 | neuston net | fish unident | 12 | 1 |
| 58 | neuston net | fish unident | 8 | 1 |
| 60 | neuston net | fish unident | 11 | 1 |
| 60 | neuston net | fish unident | 10 | 1 |
| 60 | neuston net | fish unident | 15 | 1 |
| 60 | neuston net | fish unident | 11 | 1 |
| 59 | neuston net | cunner | 12 | 1 |
| 59 | neuston net | cunner | 12 | 1 |
| 59 | neuston net | cunner | 10 | 1 |
| 59 | neuston net | cunner | 11 | 1 |
| 59 | neuston net | cunner | 8 | 1 |
| 59 | neuston net | cunner | 7 | 1 |
| 59 | neuston net | cunner | 10 | 1 |
| 59 | neuston net | cunner | 12 | 1 |
| 59 | neuston net | cunner | 9 | 1 |
| 59 | neuston net | cunner | 11 | 1 |
| 59 | neuston net | cunner | 14 | 1 |
| 59 | neuston net | cunner | 10 | 1 |
| 59 | neuston net | cunner | 15 | 1 |
| 59 | neuston net | cunner | 8 | 1 |
| 59 | neuston net | cunner | 14 | 1 |
| 59 | neuston net | cunner | 10 | 1 |
| 59 | neuston net | cunner | 14 | 1 |
| 59 | neuston net | cunner | 13 | 1 |
| 59 | neuston net | hake/rockling | 11 | 1 |
| 59 | neuston net | hake/rockling | 11 | 1 |
| 59 | neuston net | hake/rockling | 10 | 1 |
| 59 | neuston net | hake/rockling | 11 | 1 |
| 59 | neuston net | hake/rockling | 10 | 1 |
| 59 | neuston net | hake/rockling | 12 | 1 |
| 59 | neuston net | hake/rockling | 10 | 1 |
| 59 | neuston net | hake/rockling | 13 | 1 |
| 59 | neuston net | hake/rockling | 12 | 1 |
| 59 | neuston net | hake/rockling | 19 | 1 |
| 59 | neuston net | hake/rockling | 11 | 1 |
| 59 | neuston net | hake/rockling | 10 | 1 |
| 59 | neuston net | hake/rockling | 13 | 1 |
| 59 | neuston net | hake/rockling | 12 | 1 |
| 59 | neuston net | mackerel | 8 | 1 |
| 59 | neuston net | mackerel | 8 | 1 |
| 65 | neuston net | fish unident | 8 | 1 |
| 65 | neuston net | fish unident | 15 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 12 | 1 |
| 65 | neuston net | fish unident | 12 | 1 |
| 65 | neuston net | fish unident | 12 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 12 | 1 |
| 65 | neuston net | fish unident | 10 | 1 |
| 65 | neuston net | fish unident | 8 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 8 | 1 |
| 65 | neuston net | fish unident | 13 | 1 |
| 65 | neuston net | fish unident | 9 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 9 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 10 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 7 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 14 | 1 |
| 65 | neuston net | fish unident | 11 | 1 |
| 65 | neuston net | fish unident | 10 | 1 |
| 65 | neuston net | fish unident | 16 | 1 |
| 65 | neuston net | fish unident | 12 | 1 |
| 65 | neuston net | fish unident | 15 | 1 |
| 65 | neuston net | fish unident | 9 | 1 |
| 65 | neuston net | fish unident | 8 | 1 |
| 65 | neuston net | fish unident | 16 | 1 |
| 66 | neuston net | hake/rockling | 14 | 1 |
| 66 | neuston net | hake/rockling | 17 | 1 |
| 66 | neuston net | hake/rockling | 12 | 1 |
| 66 | neuston net | hake/rockling | 10 | 1 |
| 66 | neuston net | hake/rockling | 12 | 1 |
| 66 | neuston net | hake/rockling | 8 | 1 |
| 66 | neuston net | cunner | 10 | 1 |
| 66 | neuston net | cunner | 8 | 1 |
| 66 | neuston net | cunner | 11 | 1 |
| 66 | neuston net | cunner | 9 | 1 |
| 66 | neuston net | cunner | 12 | 1 |
| 66 | neuston net | cunner | 9 | 1 |
| 66 | neuston net | cunner | 10 | 1 |
| 66 | neuston net | cunner | 9 | 1 |
| 66 | neuston net | cunner | 11 | 1 |
| 66 | neuston net | cunner | 10 | 1 |
| 66 | neuston net | cunner | 8 | 1 |
| 66 | neuston net | cunner | 10 | 1 |
| 66 | neuston net | cunner | 11 | 1 |
| 67 | neuston net | hake/rockling | 8 | 1 |
| 67 | neuston net | hake/rockling | 9 | 1 |
| 67 | neuston net | hake/rockling | 9 | 1 |
| 67 | neuston net | hake/rockling | 9 | 1 |
| 67 | neuston net | hake/rockling | 8 | 1 |
| 67 | neuston net | hake/rockling | 8 | 1 |
| 67 | neuston net | hake/rockling | 8 | 1 |
| 67 | neuston net | hake/rockling | 7 | 1 |
| 67 | neuston net | hake/rockling | 8 | 1 |
| 67 | neuston net | hake/rockling | 8 | 1 |
| 67 | neuston net | hake/rockling | 8 | 1 |
| 67 | neuston net | cunner | 12 | 1 |
| 67 | neuston net | hake/rockling | 10 | 1 |
| 67 | neuston net | hake/rockling | 8 | 1 |
| 67 | neuston net | hake/rockling | 9 | 1 |
| 67 | neuston net | hake/rockling | 9 | 1 |
| 68 | neuston net | mackerel | 10 | 1 |
| 68 | neuston net | hake/rockling | 8 | 1 |
| 68 | neuston net | hake/rockling | 8 | 1 |
| 68 | neuston net | hake/rockling | 8 | 1 |
| 68 | neuston net | hake/rockling | 8 | 1 |
| 68 | neuston net | mackerel | 10 | 1 |
| 68 | neuston net | hake/rockling | 6 | 1 |
| 68 | neuston net | hake/rockling | 14 | 1 |
| 68 | neuston net | hake/rockling | 8 | 1 |
| 68 | neuston net | hake/rockling | 8 | 1 |
| 80 | neuston net | red/white hake | 19 | 1 |
| 80 | neuston net | red/white hake | 11 | 1 |
| 80 | neuston net | red/white hake | 11 | 1 |
| 81 | neuston net | red/white hake | 15 | 1 |
| 82 | beach seine | herring | 48 | 1 |
| 82 | beach seine | herring | 55 | 1 |
| 82 | beach seine | herring | 51 | 1 |
| 82 | beach seine | herring | 55 | 1 |
| 82 | beach seine | herring | 110 | 1 |
| 82 | beach seine | herring | 86 | 1 |
| 82 | beach seine | herring | 79 | 1 |
| 82 | beach seine | herring | 70 | 1 |
| 82 | beach seine | herring | 78 | 1 |
| 82 | beach seine | herring | 85 | 1 |
| 82 | beach seine | herring | 75 | 1 |
| 82 | beach seine | herring | 82 | 1 |
| 82 | beach seine | herring | 77 | 1 |
| 82 | beach seine | herring | 75 | 1 |
| 82 | beach seine | herring | 82 | 1 |
| 82 | beach seine | herring | 72 | 1 |
| 82 | beach seine | herring | 77 | 1 |
| 82 | beach seine | herring | 76 | 1 |
| 82 | beach seine | herring | 77 | 1 |
| 82 | beach seine | herring | 73 | 1 |
| 82 | beach seine | herring | 74 | 1 |
| 82 | beach seine | herring | 82 | 1 |
| 82 | beach seine | herring | 85 | 1 |
| 82 | beach seine | herring | 75 | 1 |
| 82 | beach seine | herring | 73 | 1 |
| 82 | beach seine | herring | 75 | 1 |
| 82 | beach seine | herring | 40 | 1 |
| 82 | beach seine | herring | 37 | 1 |
| 82 | beach seine | herring | 40 | 1 |
| 82 | beach seine | herring | 55 | 1 |
| 82 | beach seine | herring | 48 | 1 |
| 82 | beach seine | herring | 39 | 1 |
| 82 | beach seine | herring | 55 | 1 |
| 82 | beach seine | herring | 48 | 1 |
| 82 | beach seine | herring | 39 | 1 |
| 82 | beach seine | herring | 55 | 1 |
| 82 | beach seine | herring | 45 | 1 |
| 82 | beach seine | herring | 47 | 1 |
| 82 | beach seine | herring | 52 | 1 |
| 82 | beach seine | herring | 38 | 1 |
| 82 | beach seine | herring | 50 | 1 |
| 82 | beach seine | herring | 40 | 1 |
| 82 | beach seine | herring | 45 | 1 |
| 82 | beach seine | herring | 47 | 1 |
| 82 | beach seine | herring | 47 | 1 |
| 82 | beach seine | herring | 50 | 1 |
| 82 | beach seine | herring | 45 | 1 |
| 82 | beach seine | herring | 50 | 1 |
| 82 | beach seine | herring | 35 | 1 |
| 82 | beach seine | herring | 60 | 1 |
| 82 | beach seine | herring | 40 | 1 |
| 82 | beach seine | herring | 40 | 1 |
| 82 | beach seine | herring | 40 | 1 |
| 82 | beach seine | herring | 40 | 1 |
| 82 | beach seine | herring | 45 | 1 |
| 82 | beach seine | herring | 80 | 1 |
| 82 | beach seine | herring | 80 | 1 |
| 82 | beach seine | herring | 80 | 1 |
| 82 | beach seine | herring | 70 | 1 |
| 82 | beach seine | herring | 80 | 1 |
| 82 | beach seine | pollock | 90 | 1 |
| 82 | beach seine | tomcod | 55 | 1 |
| 82 | beach seine | tomcod | 75 | 1 |
| 82 | beach seine | pollock | 60 | 1 |
| 82 | beach seine | pollock | 90 | 1 |
| 82 | beach seine | tomcod | 85 | 1 |
| 82 | beach seine | tomcod | 101 | 1 |
| 82 | beach seine | pollock | 100 | 1 |
| 82 | beach seine | tomcod | 80 | 1 |
| 82 | beach seine | tomcod | 95 | 1 |
| 82 | beach seine | tomcod | 100 | 1 |
| 82 | beach seine | tomcod | 100 | 1 |
| 82 | beach seine | tomcod | 130 | 1 |
| 82 | beach seine | tomcod | 85 | 1 |
| 82 | beach seine | pollock | 90 | 1 |
| 82 | beach seine | tomcod | 100 | 1 |
| 82 | beach seine | tomcod | 95 | 1 |
| 82 | beach seine | tomcod | 100 | 1 |
| 82 | beach seine | tomcod | 85 | 1 |
| 82 | beach seine | tomcod | 100 | 1 |
| 82 | beach seine | tomcod | 95 | 1 |
| 82 | beach seine | tomcod | 95 | 1 |
| 82 | beach seine | tomcod | 98 | 1 |
| 82 | beach seine | tomcod | 85 | 1 |
| 82 | beach seine | tomcod | 70 | 1 |
| 82 | beach seine | tomcod | 90 | 1 |
| 82 | beach seine | tomcod | 95 | 1 |
| 82 | beach seine | tomcod | 95 | 1 |
| 82 | beach seine | tomcod | 90 | 1 |
| 82 | beach seine | tomcod | 82 | 1 |
| 82 | beach seine | tomcod | 80 | 1 |
| 82 | beach seine | tomcod | 97 | 1 |
| 82 | beach seine | tomcod | 80 | 1 |
| 82 | beach seine | tomcod | 95 | 1 |
| 82 | beach seine | tomcod | 90 | 1 |
| 82 | beach seine | tomcod | 90 | 1 |
| 82 | beach seine | tomcod | 100 | 1 |
| 82 | beach seine | pollock | 105 | 1 |
| 82 | beach seine | tomcod | 85 | 1 |
| 82 | beach seine | tomcod | 100 | 1 |
| 82 | beach seine | tomcod | 98 | 1 |
| 82 | beach seine | tomcod | 75 | 1 |
| 82 | beach seine | tomcod | 87 | 1 |
| 82 | beach seine | tomcod | 95 | 1 |
| 82 | beach seine | tomcod | 72 | 1 |
| 82 | beach seine | tomcod | 92 | 1 |
| 82 | beach seine | tomcod | 120 | 1 |
| 82 | beach seine | tomcod | 90 | 1 |
| 82 | beach seine | tomcod | 90 | 1 |
| 82 | beach seine | tomcod | 87 | 1 |
| 82 | beach seine | pollock | 105 | 1 |
| 82 | beach seine | sandlance | 75 | 1 |
| 82 | beach seine | sandlance | 90 | 1 |
| 82 | beach seine | sandlance | 52 | 1 |
| 82 | beach seine | sandlance | 73 | 1 |
| 82 | beach seine | sandlance | 75 | 1 |
| 82 | beach seine | sandlance | 76 | 1 |
| 82 | beach seine | sandlance | 77 | 1 |
| 82 | beach seine | sandlance | 80 | 1 |
| 82 | beach seine | sandlance | 75 | 1 |
| 82 | beach seine | sandlance | 80 | 1 |
| 82 | beach seine | sandlance | 76 | 1 |
| 82 | beach seine | sandlance | 80 | 1 |
| 82 | beach seine | sandlance | 72 | 1 |
| 82 | beach seine | sandlance | 85 | 1 |
| 82 | beach seine | sandlance | 87 | 1 |
| 82 | beach seine | sandlance | 80 | 1 |
| 82 | beach seine | sandlance | 84 | 1 |
| 82 | beach seine | sandlance | 90 | 1 |
| 82 | beach seine | sandlance | 80 | 1 |
| 83 | neuston net | fish larvae | 2 | 1 |
| 83 | neuston net | fish larvae | 2 | 1 |
| 83 | neuston net | fish larvae | 2 | 1 |
| 83 | neuston net | fish larvae | 2 | 1 |
| 84 | neuston net | fish larvae | 2 | 1 |
| 89 | neuston net | fourbeard rockling | 14 | 1 |
| 90 | neuston net | fourbeard rockling | 21 | 1 |
| 90 | neuston net | fourbeard rockling | 20 | 1 |
| 90 | neuston net | fourbeard rockling | 16 | 1 |
| 90 | neuston net | fourbeard rockling | 17 | 1 |
| 90 | neuston net | fourbeard rockling | 17 | 1 |
| 95 | neuston net | fourbeard rockling | 15 | 1 |
| 100 | neuston net | fourbeard rockling | 31 | 1 |
| 100 | neuston net | fourbeard rockling | 13 | 1 |
| 100 | neuston net | hake/rockling | 10 | 1 |
| 100 | neuston net | hake/rockling | 9 | 1 |
| 100 | neuston net | hake/rockling | 10 | 1 |
| 101 | neuston net | fourbeard rockling | 23 | 1 |
| 101 | neuston net | fourbeard rockling | 21 | 1 |
| 101 | neuston net | hake/rockling | 9 | 1 |
| 101 | neuston net | hake/rockling | 8 | 1 |
| 101 | neuston net | hake/rockling | 12 | 1 |
| 105 | beach seine | tomcod | 43 | 1 |
| 105 | beach seine | tomcod | 105 | 1 |
| 105 | beach seine | tomcod | 90 | 1 |
| 105 | beach seine | tomcod | 110 | 1 |
| 105 | beach seine | tomcod | 105 | 1 |
| 105 | beach seine | tomcod | 110 | 1 |
| 105 | beach seine | tomcod | 110 | 1 |
| 105 | beach seine | tomcod | 75 | 1 |
| 105 | beach seine | tomcod | 115 | 1 |
| 105 | beach seine | tomcod | 135 | 1 |
| 105 | beach seine | tomcod | 100 | 1 |
| 105 | beach seine | tomcod | 105 | 1 |
| 105 | beach seine | tomcod | 102 | 1 |
| 105 | beach seine | tomcod | 145 | 1 |
| 105 | beach seine | tomcod | 156 | 1 |
| 105 | beach seine | tomcod | 97 | 1 |
| 105 | beach seine | tomcod | 104 | 1 |
| 105 | beach seine | tomcod | 134 | 1 |
| 105 | beach seine | tomcod | 119 | 1 |
| 105 | beach seine | tomcod | 109 | 1 |
| 105 | beach seine | tomcod | 104 | 1 |
| 105 | beach seine | tomcod | 103 | 1 |
| 105 | beach seine | cunner | 30 | 1 |
| 105 | beach seine | cunner | 28 | 1 |
| 105 | beach seine | cunner | 30 | 1 |
| 105 | beach seine | cunner | 25 | 1 |
| 105 | beach seine | cunner | 27 | 1 |
| 105 | beach seine | cunner | 27 | 1 |
| 105 | beach seine | cunner | 27 | 1 |
| 105 | beach seine | cunner | 15 | 1 |
| 105 | beach seine | cunner | 22 | 1 |
| 105 | beach seine | cunner | 21 | 1 |
| 105 | beach seine | flatfish unident | 55 | 1 |
| 105 | beach seine | flatfish unident | 120 | 1 |
| 105 | beach seine | flatfish unident | 41 | 1 |
| 105 | beach seine | flatfish unident | 106 | 1 |
| 105 | beach seine | northern pipefish | 100 | 1 |
| 105 | beach seine | northern pipefish | 170 | 1 |
| 105 | beach seine | northern pipefish | 111 | 1 |
| 105 | beach seine | northern pipefish | 68 | 1 |
| 105 | beach seine | northern pipefish | 73 | 1 |
| 105 | beach seine | northern pipefish | 145 | 1 |
| 105 | beach seine | northern pipefish | 170 | 1 |
| 105 | beach seine | northern pipefish | 155 | 1 |
| 105 | beach seine | northern pipefish | 76 | 1 |
| 105 | beach seine | northern pipefish | 181 | 1 |
| 105 | beach seine | northern pipefish | 114 | 1 |
| 105 | beach seine | pollock | 100 | 1 |
| 105 | beach seine | pollock | 102 | 1 |
| 105 | beach seine | pollock | 98 | 1 |
| 105 | beach seine | pollock | 101 | 1 |
| 105 | beach seine | rainbow smelt | 62 | 1 |
| 105 | beach seine | rainbow smelt | 45 | 1 |
| 105 | beach seine | rainbow smelt | 44 | 1 |
| 105 | beach seine | rainbow smelt | 34 | 1 |
| 105 | beach seine | rainbow smelt | 35 | 1 |
| 105 | beach seine | rainbow smelt | 50 | 1 |
| 105 | beach seine | rainbow smelt | 23 | 1 |
| 105 | beach seine | rainbow smelt | 51 | 1 |
| 105 | beach seine | rainbow smelt | 50 | 1 |
| 105 | beach seine | rainbow smelt | 55 | 1 |
| 105 | beach seine | rainbow smelt | 55 | 1 |
| 105 | beach seine | rainbow smelt | 60 | 1 |
| 105 | beach seine | rainbow smelt | 40 | 1 |
| 105 | beach seine | rainbow smelt | 45 | 1 |
| 105 | beach seine | rainbow smelt | 36 | 1 |
| 105 | beach seine | rainbow smelt | 64 | 1 |
| 105 | beach seine | rainbow smelt | 55 | 1 |
| 105 | beach seine | sculpin | 45 | 1 |
| 105 | beach seine | sculpin | 54 | 1 |
| 105 | beach seine | sculpin | 47 | 1 |
| 105 | beach seine | sculpin | 44 | 1 |
| 105 | beach seine | stickleback | 45 | 1 |
| 105 | beach seine | stickleback | 34 | 1 |
| 105 | beach seine | stickleback | 35 | 1 |
| 105 | beach seine | stickleback | 44 | 1 |
| 105 | beach seine | stickleback | 36 | 1 |
| 105 | beach seine | stickleback | 35 | 1 |
| 105 | beach seine | stickleback | 46 | 1 |
| 105 | beach seine | stickleback | 55 | 1 |
| 105 | beach seine | stickleback | 39 | 1 |
| 105 | beach seine | stickleback | 36 | 1 |
| 105 | beach seine | stickleback | 48 | 1 |
| 105 | beach seine | stickleback | 37 | 1 |
| 105 | beach seine | stickleback | 49 | 1 |
| 105 | beach seine | stickleback | 45 | 1 |
| 105 | beach seine | stickleback | 35 | 1 |
| 105 | beach seine | stickleback | 46 | 1 |
| 106 | neuston net | fourbeard rockling | 19 | 1 |
| 106 | neuston net | fourbeard rockling | 16 | 1 |
| 107 | neuston net | fourbeard rockling | 15 | 1 |
| 107 | neuston net | fourbeard rockling | 19 | 1 |
| 108 | neuston net | fourbeard rockling | 11 | 1 |
| 110 | neuston net | fourbeard rockling | 36 | 1 |
| 110 | neuston net | fourbeard rockling | 31 | 1 |
| 110 | neuston net | red/white hake | 19 | 1 |
| 110 | neuston net | red/white hake | 21 | 1 |
| 110 | neuston net | red/white hake | 10 | 1 |
| 110 | neuston net | red/white hake | 11 | 1 |
| 110 | neuston net | red/white hake | 15 | 1 |
| 110 | neuston net | red/white hake | 18 | 1 |