10,399 research outputs found
STECF. 2021. Scientific, Technical and Economic Committee for Fisheries (STECF) – Stock assessments in the Mediterranean Sea 2021 – (Adriatic and Ionian Seas) (STECF-21-15).
No full textCommission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, aquaculture or similar disciplines. This report is from STECF Expert Working Group 21-15: 2021 stock assessments of demersal stocks in Adriatic, Ionian and Aegean Seas from the meeting held remotely from 18th to 22th October 2021. A total of 9 fish stocks were evaluated. One stock had prior advice from 2020 for 2021 and 2022, and this is reiterated here. Index advice for 2022 and 2023 is provide for one other stock. The EWG reports age based assessments and short term forecasts for 5 of the remaining 7 stocks and surplus production assessments for two stocks. The content of the report gives the STECF terms of reference, the basis of the evaluations and advice, summaries of state of stock and advised based on either the MSY approach for assessed stocks or the precautionary approach for category 3 based advice. The report contains the full stock assessment reports for the 7 assessments, the exploration of assessments and category 3 evaluations for the remaining five stocks. The report also contains the STECF observations and conclusions on the assessment report. These conclusions come from the STECF Plenary meeting November 2021.European UnionPublishedReferee
Evaluation of pilot surveys undertaken under the Commission Regulation (EC) No 1639/2001
No full textStock assessments in the Western Mediterranean Sea (STECF 23-09)
No full textCommission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, aquaculture or similar disciplines This report documents the outcomes of STECF Expert Working Group 23-09: 2023 stock assessments of demersal stocks in the Western Mediterranean Sea from the meeting held in hybrid mode from 4th to 10th September 2023. A total of 20 fish stocks considered. Nine stocks were evaluated by means of a statistical catch at age (SCAA) model (a4a). Due to the lack of survey information in 2022, five stocks were evaluated through a catch weight projection and short-term forecast. The methodological approach is described in the last part of this Executive Summary, and in the Report. In 2022, index- based advice was given for three stocks (ARA8-9-10-11 and NEP11 on two years basis while for MUT 10 just for one year), and they were re-evaluated by EWG 23-09. The advice for ARA8-9-10-11 and NEP11 have been confirmed while for MUT 10 the missing index information led the group to consider downgrading the advice from an index-based one to a catch only advice approach (ICES Category 5). Two stocks for which the index-based advice provided in 2021 (2 years advice) have been evaluated again looking for a plausible fully analytical assessment. None of the model setting tried was able to provide acceptable results, therefore a biomass index-based advice is given again. The content of the report gives the STECF terms of reference; the basis of the evaluations; assessments, reference point calculations; summaries of state of stock and advised catch or F based on either the MSY approach for assessed stocks and category 3 and 5 based advice for those without assessments. The report contains the full stock assessment reports, the exploration of assessments and category 3 and 5 evaluations for the remaining stocks. The report also contains the STECF observations and conclusions on the assessment report. These conclusions come from the STECF mini plenary meeting October 2023.European CommissionPublishedReferee
Stock Assessments: demersal stocks in the western Mediterranean Sea (STECF-20-09).
No full textThe working group was held in remotely, from 7th to 18th Sept 2020. The meeting was attended by 21 experts in total, including three STECF members and four JRC experts. The EWG had two observers who attended part time. The objective of the Mediterranean Methodology EWG 20-09 was to carry out assessments and provide draft advice for stocks identified in the ToR supplied by STECF. An initial plenary session commenced at 09:30 on the first day. The ToRs were discussed and examined in detail. Stocks were allocated to participants based on expertise. An ftp repository was created ad-hoc to share documents, data and scripts and prepare the report. The stock assessments were evaluated by the by all participants. Most of the work was concluded by Tuesday 15 Sept, after 7 full days of work, and some additional work at the weekend. However, two stocks remained to be completed, this extra work was carried out largely by two participant with support from small subgroups. The WG met for a final session on Friday 18 Sept. to conclude the work on one stock. Following extensive trials the last stock could not be assessed with an analytic age based assessment and advice was based on the MEDITS index. Over the first 7 working days plenary sessions were held each day to monitor progress and share results. The overall conclusions for each stock were discussed and finalized in plenary on the Tuesday, though the last assessment was finalised on the following Friday, the last day of the meeting.European CommissionEuropean Union, Joint Research CentrePublishedReferee
2019 Stock Assessments part 2: European fisheries for demersal species in the Adriatic Sea (STECF-19- 16).
No full textCommission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, aquaculture or similar disciplines. . This report is from STECF Expert Working Group 19-16: 2019 stock assessments of demersal stocks in the Adriatic Sea from the meeting in Rome Italy from 14th to 20th October 2019. A total of seven fish species were evaluated for GSA 17, 18 and 19. The EWG reports age based assessments and short term forecasts for all seven stocks. The content of the report gives the STECF terms of reference, the basis of the evaluations and advice, summaries of state of stock and advised based on either the MSY approach for assessed. The report contains the full stock assessment reports for the seven assessments, and three exploratory assessments for deep-water rose shrimp for each GSA separately. Advice for deep-water rose shrimp is based on the combined stock, the report also contains the STECF observations and conclusions on the assessment report. These conclusions come from the STECF Plenary meeting November 2019.European CommissionEuropean Union, Joint Research CentrePublishedReferee
Stock Assessments in the Mediterranean Sea – Adriatic, Ionian and Aegean Seas (STECF-20-15).
No full textThe working group was held in remotely, from 12th to 20th Sept 2020. The meeting was attended by 14 experts in total, including two STECF member and two JRC experts. The EWG had two observers who attended part time. The objective of the Mediterranean Methodology EWG 20-15 was to carry out assessments and provide draft advice for stocks identified in the ToR supplied by STECF. An initial plenary session commenced at 09:30 on the first day. The ToRs were discussed and examined in detail. Stocks were allocated to participants based on expertise. An ftp repository was created ad-hoc to share documents, data and scripts and prepare the report. The stocks were evaluated by the GSA groups identified in the ToRs. Most of the work was concluded by Tuesday 20 Sept, after 7 full days of work, and some additional work at the weekend. Over the 7 working days plenary sessions were held each day to monitor progress and share results. The overall conclusions for each stock were discussed and finalized in plenary on the Tuesday.European CommissionEuropean Union, Joint Research CentrePublishedReferee
Scientific, Technical and Economic Committee for Fisheries (STECF) – Stock Assessments: demersal stocks in the western Mediterranean Sea. (Version 1.2) (STECF-22-09).
No full textCommission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, aquaculture or similar disciplines This report documents the outcomes of STECF Expert Working Group 22-09: 2022 stock assessments of demersal stocks in the western Mediterranean Sea from the meeting held remotely from 5th to 11th September 2022. A total of 20 fish stocks considered and 18 were fully evaluated. Two stocks had prior advice from 2021 with catch advice for 2022 and 2023, and this is reiterated here. The EWG reports age based assessments, target Fs, with short term forecasts for 15 of the remaining 18 stocks, of these 15, 12 were also analysed for biomass reference points. Catch advice for three stocks was based on ICES category three evaluations of biomass indices. The content of the report gives the STECF terms of reference; the basis of the evaluations; assessments, reference point calculations; summaries of state of stock and advised catch or F based on either the MSY approach for assessed stocks and category 3 based advice for those without assessments. The report contains the full stock assessment reports for the 15 assessments, the exploration of assessments and category 3 evaluations for the remaining three stocks. The report also contains the STECF observations and conclusions on the assessment report. These conclusions come from the STECF Plenary meeting November 2022.European UnionPublishedReferee
Technical measures (STECF-17-02)
No full textCommission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, aquaculture or similar disciplines. An Expert Working Group of the STECF was convened to develop guidelines for future evaluations by STECF of alternative technical measures that deviate from the baseline standards established at European Union level
Stock Assessments: demersal stocks in the western Mediterranean Sea (STECF-21-11).
No full textThe working group was held in remotely, from 6th to 10th Sept 2021. The meeting was attended by 20 experts in total, including two STECF members and two JRC experts along with one observer. The objective of the Mediterranean Methodology EWG 21-11 was to carry out assessments and provide draft advice for stocks identified in the ToR supplied by STECF. An initial plenary session commenced at 09:00 on the first day. The ToRs were discussed and examined in detail. Stocks were allocated to participants based on expertise. An ad-hoc ftp repository was created to share documents, data and scripts and prepare the report. The stock assessments were evaluated by all participants. Following EWG 21-02 data preparation EWG data was available for assessments much earlier in the meeting, in all cases by Tuesday night. For stocks with assessment issues some sensitivity test were possible, but for DWRS in GSA 1,5,6,7 exploratory assessments were not fully concluded given time limitations. Over the week plenary sessions were held each day to monitor progress and share results. The overall conclusions for each stock were discussed and finalized in plenary on the Friday. After the main meeting it became apparent that the selected assessment for red and blue shrimp in GSA 1 had issues with the form of the model, the model was re-examined and details circulated to all EWG participants. A short 45minute plenary was held on Tuesday 21st and a revised assessment was agreed. This report contains this final assessment and advice based on it.European CommissionEuropean Union, Joint Research CentrePublishedReferee
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