1. Understanding species status

1.1 What is the proportion of species in each Red List category

All 1199 species

All habitats

All status
Threatened vs Non-threatened
CR(PE) Possibly extinct species
% THR by family

By habitat

536 Sharks

All status

Threatened vs Non-threatened

CR(PE) Possibly extinct species

611 Rays

All status

Threatened vs Non-threatened

CR(PE) Possibly extinct species

52 Ghost sharks

All status

Threatened vs Non-threatened

1.2 What is the proportion of threatened (CR, EN, VU) species in each Red List criteria

Criteria A to E

Criteria A to E with numeric

Criteria A to E with numeric and subcategories

2. Understanding species status changes

2.1 First assessed species categories (171)

all status

Threatened vs Non-threatened (without DD)

2.2 Current category of previously DD species (454)

all status

Threatened vs Non-threatened

2.3 Species (already assessed) reason for change:

2.3.1 How many species have undergone Genuine change, No change, Non-genuine change

All species

Genuine change species list

2.3.2 What are the reasons for Non-genuine change (by species, multiple reasons possible)

3. Understanding threats

3.1 What is the proportion of level 1 threats by type (as per IUCN typology) for:

ALL species

CR,EN,VU,NT

Threatened (CR,EN,VU)

3.2 In species threatened by fishing (IUCN Threat 5.4) …

All 1093 species (1199 in the working set) threatened by fishing

3.2.1 … number of species threatened by each category

Frequency
Percentage

3.2.2 … number of species threatened ONLY by each category

Frequency
Percentage

In threatened only (CR, EN, VU) 391 species (391 in the working set) threatened by fishing

3.2.1 … number of species threatened by each category

Frequency
Percentage

3.2.2 … number of species threatened ONLY by each category

Frequency
Percentage

4. Understanding Use & trade

ALL species

In threatened only species (CR, EN, VU)

  1. Earth to Ocean Research Group, Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada, ↩︎

  2. Earth to Ocean Research Group, Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada, ↩︎