In this case, we can compare data from;

• Fishery Monitoring (2000-2020)
• AMLR Data (1991-2011)
• Penguin Diet (1977-2020)
• Pinnipeds Diet (unknow yet)

Focus on 48.1 SuArea (Figure 1).

Focus area 48.1

#data fishery
datafi <- load("~/DOCAS/Data/Krill_Length_Cor/length481.RData")

# data survey (data D. K)
dat.all <- # net length frequencies including zero hauls
           read.csv(file=paste("~/DOCAS/Data/AMLR_Length_Data/AMLR_Krill_LFD_data.csv",
                               sep=""),sep=",",
                    header=T,stringsAsFactors=F)

# data penguin
datape <- read.csv("~/DOCAS/Data/Compar_Size_Krill/AERD_KRILL_LF_DATA.csv",
                   sep=";", stringsAsFactors =NA)

# data pinnipeds
# LF not ready yet. Doug must talk with Sam (data manager) to try get some order in this data

# PALMER Data

• The differences between species are mainly data in Gentoo, with a range of individuals greater than the other species (Adelie and Chinstrap). Probably due to foraging depth ranges.

• Regarding differences between fleets, the most notable aspect is that between 2010 and 2020 the fishery and predators such as penguins have differed in the range of selectivity, this is probably due to changes in the spatial strategies of the fishing fleet.

• Changes in the trend of preferences are significant for the three fleets, being only the penguins that show an increasing trend of selected krill sizes in the diet.