The Marine chapter of the 2016 State of the Environment (SoE) report incorporates multiple expert templates developed from
streams of marine data. This metadata record describes the Expert Assessment "The state and trends of quality of species
and groups – sharks and rays (elasmobranchs)". The full Expert Assessment, including figures and tables (where provided),
is attached to this record. Where available, the Data Stream(s) used to generate this Expert Assessment are accessible
through the "On-line Resources" section of this record.
DESCRIPTION OF TAXONOMIC GROUP FOR EXPERT ASSESSMENT
Conservation of elasmobranchs is an increasing priority as evidence of overexploitation of some species becomes increasingly
apparent (e.g., Stevens et al. 2000, Graham et al. 2001, Clarke et al. 2006, Dulvy et al. 2008, Dulvy et al. 2014). Australia
has ~307 elasmobranch species that occur in marine environments in all bioregions, with about half being endemic.
DATA STREAM(S) USED IN EXPERT ASSESSMENT
Data primarily collected from an expert panel of elasmobranch researchers and fisheries scientists during an IUCN Shark Specialist
Group Red List workshop in February 2015 (report still in prep) as part of a FRDC Shark Report Card project (www.sharkreportcard.org)
2016 SOE ASSESSMENT SUMMARY [see attached Expert Assessment for full details]
• 2016 •
Assessment grade: Good
Assessment trend: Unclear
Confidence grade: Limited evidence or limited consensus
Confidence trend: Limited evidence or limited consensus
Comparability: Grade and trend are somewhat comparable to the 2011 assessment
• 2011 •
Assessment trend: Stable
CHANGES SINCE 2011 SOE ASSESSMENT
Largely agrees with 2011 SOE assessment, however there are few data available on population abundances or trends for most
species so trend can only be regarded as unclear rather than stable.
Dulvy NK, Fowler SL, Musick JA, Cavanagh RD, Kyne PM, Harrison LR, Carlson JK, Davidson LNK, Fordham SV, Francis MP, Pollock
CM, Simpfendorfer CA, Burgess GH, Carpenter KE, Compagno LJV, Ebert DA, Gibson C, Heupel MR, Livingstone SR, Sanciangco JC,
Stevens JD, Valenti S and White WT. (2014) Extinction risk and conservation of the world's sharks and rays. eLife 3:e00590.
Heupel MR (2015) Prioritisation of research and management needs for Australian elasmobranch species. National Environmental
Science Program Marine Biodiversity Hub, 19pp. (project website: http://www.nespmarine.edu.au/project/project-a6-prioritisation-research-and-management-needs-australian-elasmobranch-species)
QUALITY OF DATA USED IN THE ASSESSMENT
Varies between species but incorporates the most recent and up to date information available for all Australian species of
CUSTODIAN AND LOCATION OF DATA
Data forms part of the FRDC Shark Report Card project (www.sharkreportcard.org) and will also become part of the IUCN’s
Red List of Threatened Animals once assessments are complete.
METHOD USED TO DETERMINE STATE OR RECENT TREND
Varies by species but generally based on fisheries catch and effort data where available. Inferences of potential declines
often used for rarer species but captured in the IUCN Red List categories justifications (see www.iucnredlist.org).
When citing this Expert Assessment in a list of references use the following format:
citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data
accessed at (add http link).