Stock Assessments and Executive Summaries
Stock assessments are quantitative estimates of the status (abundance) of the fish stocks and of the intensity of fishing upon them. Assessments underpin the scientific advice for management that is provided by the Standing Committee on Research and Statistics to the Commission: They aim at evaluating the sustainability of current and proposed future harvest practices in light of the Commission's objective to maintain the populations at a level that permits their maximum sustainable catch. The species Executive Summaries and Detailed Reports of stock assessments prepared by the SCRS can be downloaded from this site. Readers are warned that the concusions reached from a stock assessment can depend on a number of factors such as the available data, the various hypotheses examined and the assumptions made during analysis.
SPECIES | Last / Next assessment | Assessment model(s) used for advice |
Reports | Images | |
---|---|---|---|---|---|
YFT Yellowfin Tuna Thunnus albacares |
2019 / 2023* | Stock Synthesis (V3.30.13.09), JABBA (v1.5 Beta) and mpb (FLR) |
Summary Detailed |
Yellowfin B/W drawing (Image owned and copy-righted by the Inter-American Tropical Tuna Commission, IATTC) |
|
Bigeye Tuna Thunnus obesus |
2018 / 2021 | Stock Synthesis (V3.24P) |
Summary Detailed |
Bigeye being caught (Courtesy of J.C. Santana Fernandez, IEO Canarias) Bigeye Drawing (Courtesy of the FROM, Secretaría General de Pesca Marítima, Spain) Bigeye B/W drawing (Image owned and copy-righted by the Inter-American Tropical Tuna Commission, IATTC) Bigeye color drawing (Image owned and copy-righted by the Inter-American Tropical Tuna Commission, IATTC) |
|
Skipjack Tuna Katsuwonus pelamis |
2014 / 2021* | West Atlantic: ASPIC (v5.3.4) |
Summary Detailed |
Skipjack Picture (Courtesy of J.C. Santana Fernandez, IEO Canarias) Skipjack Drawing (Courtesy of the FROM, Secretaría General de Pesca Marítima, Spain) Skipjack color drawing (Image owned and copy-righted by the Inter-American Tropical Tuna Commission, IATTC) |
|
Albacore Thunnus alalunga |
ATL 2016 / 2020
MED 2017 / 2021 |
North Atlantic: mpb (FLR) South Atlantic: ASPIC (v5.34) and BSP |
Detailed Detailed Summary |
Albacore color drawing (Image owned and copy-righted by the Inter-American Tropical Tuna Commission, IATTC) | |
Atl. Bluefin Tuna Thunnus thynnus t. |
2017 / 2020 | East Atlantic and Mediterranean Sea: VPA2box (V4.01) West Atlantic: VPA2box (V4.01) and Stock Synthesis (V3.24P) |
Summary Detailed |
Bluefin color drawing (Image owned and copy-righted by the Inter-American Tropical Tuna Commission, IATTC) |
|
Southern Bluefin Thunnus maccoyii |
N/A (assessed by CCSBT) |
N/A | Report | Report | |
Swordfish Atl. Xiphias gladius |
2017 / 2021 | North Atlantic: BSP and Stock Synthesis (V3.24AC) South Atlantic: JABBA (v1.0) |
Summary Detailed |
Swordfish color drawing (Image owned and copy-righted by the Inter-American Tropical Tuna Commission, IATTC) |
|
Swo-Mediterranean | 2016 / 2020 | XSA (FLR) |
Summary Detailed |
||
Sailfish Istiophorus albicans |
2016 / 2022* | East Atlantic: BSP and Stock Reduction Analysis West Atlantic: Stock Synthesis |
Summary Detailed |
Sailfish Drawing (Courtesy of the FROM, Secretaría General de Pesca Marítima, Spain) | |
Blue Marlin Makaira nigricans |
2018 / 2024 | Stock Synthesis (V3.24AD) and JABBA (v1.1) |
Summary Detailed |
Blue Marlin Drawing by Les Gallagher (Les Gallagher: fishpics) |
|
White Marlin Kajikia albida |
2019 / 2025 | Stock Synthesis (V3.30.13.03) and JABBA (v1.5 Beta) |
Summary Detailed |
White Marlin Drawing by Les Gallagher (Les Gallagher: fishpics) |
|
Small Tunas (various) |
NA / TBD | N/A |
Summary Detailed |
Atlantic bonito Drawing Bullet tuna Drawing Frigate tuna Drawing King mackerel Drawing Little tuna Drawing Atlantic Spanish Mackerel Drawing by A. López, (‘Tokio’) |
|
Pelagic sharks |
Summary |
||||
Prionace glauca |
2015 / 2021 |
North Atlantic: BSP and Stock Synthesis (V3.24U) South Atlantic: BSP and State-Space BSP |
Detailed(BSH) |
Blue shark Drawing by A. López, (‘Tokio’) | |
Isurus oxyrinchus |
2019 / TBD |
North Atlantic: Stock Synthesis (V3.24), JABBA and BSP2-JAGS South Atlantic: CMSY and BSP2-JAGS |
Detailed(SMA) |
Shortfin mako shark Drawing by A. López, (‘Tokio’) | |
Lamna nasus | 2009 / 2020 | Northwest Atlantic: BSP and ASPM Southwest Atlantic: BSP and CFASP Northeast Atlantic: BSP and ASPM Southeast Atlantic: N/A |
Detailed(POR) | Portbeagle Drawing by A. López, (‘Tokio’) |
* Provisional date, subject to the Commission decision.
TBD-To be decided