WP6 trends in biodiversity

- Review impacts

- Explore trends in catch data

- Explore trends in survey data

- Options for assessing trends in invertebrates

- Identification of indicators

WP6 contributors/objectives

Ifremer 6Cefas 5Imperial 1IPIMAR 4MI 3HCMR 5IEO 1MRI 7

Participants

+ Case studies

- review impacts

- explore trends (landings/catch/surveys)

- options for invertebrates biodiversity

- selection of biodiversity indicators

- spatial scale: Case study

Objectives

WP6 deliverables

• D6.1 Relevance of commercial catch data (18)

• D6.2 Biodiversity indicators: trends, monitoring evaluation of information (24)

• D6.3 Patterns of distributions from survey (from some CSs)

Links with MarineStrategy Framework Directive

(MSFD)• Descriptors of MSFD: 

– 1 - Biological diversity is maintained. [...] quality and occurrence of habitats [...] distribution and abundance of species are in line with [...] geographic and climatic conditions

– 4 - Marine food web [...] normal abundance and diversity [...]– 6 - Sea-floor integrity [...] structure and functions [...] safeguarded

[...] benthic ecosystems [...] not adversely affected– 10 - [...] marine litter do not cause harm

Example: descriptor marine litter

–10 - [...] marine litter do not cause harm

MSFD descriptors addresed in WP6

• 1: biological diversity (species diversity metrics)• 4: food web, not addressed (*)• 6: sea floor: can be addressed with VMS (availability?)

– proportion of the seafloor impacted?– use of EU-CoralFISH results

• 10: marine litter: no data.– Define protocol for on-board observations in the long term monitoring

strategy ? • part of task 7.3: Prototype short- and long-term management and monitoring

framework for deep-water fisheries and stocks in the NE Atlantic

(*) preys mainly mesopelagic with little data

List of indicators• Taxonomic distinctness, other diversity metrics

from surveys• Simple indicators (landings/catch/survey):

– S (richness)– proportion of large species, small species, chondrichthyans , vulnerable

species (e.g. from observer data), etc– Discard rate– Number of discarded species

• Invertebrates: – Is it a matter

of monitoring diversity or conservation of VMEs ?

– Relevant spatial scale– Footprint approach: distribution

of fishing effort frozen to current (VMS) ?

Catch: on-board observations

Links with other WPs

• WP5: BRPs and HCRs– Fish diversity and invertebrates in HCRs

• Include in HCRs ?• Use as constraint to choose HCRs with lesser diversity impact ?• ....

• WP7: Managements strategies– If footprint approach for invertebrates/VMEs, how to integrate

in management strategies ?– How to account for fish species diversity in MS ?– ...