1. Indicators for a healthy age and size structure distribution:
A Roadmap for D 3.3.
MSFD
CFP
D 3.3
ICES Secretariat
Iñigo Martinez

2. D 3.3 age and size structure

3. D 3 Outstanding Issues, Resolution, Potential Time Frame
D 3.3 Recommendations
Not include D3.3 in GES assessment as yet
To develop and test indicators for criterion 3.3:
size distribution
selectivity of fishery
genetic effects.

4. D 3.3 Recommendations D3.3 indicators: size distribution: (State)
- Proportion of fish larger than the mean size of first sexual maturation (Former 3.3.1)
- 95% percentile of the fish length distribution observed in research vessel surveys (Former 3.3.3)
selectivity of fishery (Pressure)
Length50 (or age) at first capture
Mean length in the catch
genetic effects (State)
- Size at first sexual maturation (Former 3.3.4)
- TL50: Length at which half of the (female) population are mature.

5. D 3.3 Roadmap Indicators evaluation against criteria
(ICES WKFOOWI and WGECO, 2014)
With ref points if possible
2. Selection of indicators
3. Assessment against GES
By WKMSFDD3-II
2016
2017

6. D 3.3 Roadmap Two dedicated workshops to deliver by 2017 Requires:
Availability of data (requires data call)
contrasting periods (productivity and exploitation)
contrasting functionality and productivity (Guilds)
contrasting regions (MSFD regions)
2016
2017

7. ICES ecoregions ~ MSFD areas
Candidate stock pre-selected (WKMSFDD3-II)
representing guilds
representing ecoregions
representing data, fisheries history…
Candidate stocks
Functional group id
Area
Northern hake
demersal
hke-nrtn
ICES
North sea Plaice
ple-nsea
Baltic cod
cod-2224/ cod-2532
North sea sandeel
san-ns1-5
North sea herring
pelagic
her-47d3
Red mullet
GSA-20 or GSA-22-23
GFCM
Anchovy
GSA-7 or Adriatic
Turbot in Black Sea
TUR
Bluefin tuna
BFT
ICCAT
Spurdog
elasmobranch
dgs-nea
Roundnose grenadier
Deep Sea
Rng-5b67

8. What is healthy? To derive reference points
D 3.3 Challenges
D 3.3 Indicators of age and size structure of populations
What is healthy? To derive reference points
How to use these indicators for management and what actions trigger in case of surveillance indicators
Process for aggregation across area, criteria, descriptor…

9. ICES Ecosystem Products
Many thanks

10. D 3 Outstanding Issues, Resolution, Potential Time Frame
D 3 Commercially exploited fish and shellfish
Process: two open workshops, WGGES consultation, external peer review, ICES advice
Recommendations: D3.1, D3.2 agreed. D3.3 not yet operational but revise to size distribution, selectivity of fishery and genetic effects. Not include D3.3 in GES assessment as yet.
Outstanding Issues
Resolution
Potential Time Frame
1. No agreed methods for data poor assessments of D3.1 & D3.2 as yet.
ICES is continuing to explore & develop approaches for CFP
2016
2. D3.3 not ready for GES assessment
3 stage roadmap proposed by ICES based on regional case example stocks, to be spread out when tested
2017

11. ICES ecoregions ~ MSFD areas