CCAMLR

WG-FSA-2021

Full Name:

Working Group on Fish Stock Assessment

Meeting documents

Doc Number	Title
SC-CAMLR-40/03	Report of the Working Group on Ecosystem Monitoring and Management (Virtual meeting, 5 to 9 July 2021)
SC-CAMLR-40/05	Report of the Working Group on Statistics, Assessments and Modelling (Virtual meeting, 28 June to 2 July 2021)
SC-CAMLR-40/06	Report of the Meeting of the Working Group on Acoustic Survey and Analysis Methods (Virtual meeting, 31 May to 4 June 2021)
SC-CAMLR-40/10	Boundaries of five candidate management units in Subarea 48.1 to facilitate the development of the new management approach for Antarctic krill Delegation of the People’s Republic of China
SC-CAMLR-40/11	Acoustic biomass estimates of Antarctic krill in Subarea 48.1 to facilitate the development of the new management approach for the krill fishery Delegation of the People’s Republic of China
WG-FSA-2021/01	Informational report on the results of underwater video observation of benthic fauna during the toothfish survey in Subarea 48.1 by the Ukrainian vessel Calipso in 2021 P. Zabroda, L. Pshenichnov and D. Marichev
WG-FSA-2021/02	Implementation of the CCAMLR Scheme of International Scientific Observation during 2019/20 and 2020/21, and proposed observer form updates CCAMLR Secretariat
WG-FSA-2021/03	Results from the Conversion Factor Survey conducted by the Secretariat in 2020, from Members’ vessels participating in CCAMLR toothfish fisheries CCAMLR Secretariat
WG-FSA-2021/04 Rev. 1	Summary of incidental mortality associated with fishing activities collected in scientific observer and vessel data during the 2020 and 2021 seasons CCAMLR Secretariat
WG-FSA-2021/05	An update to fish by-catch in the krill fishery, and results from responses provided to the Secretariat consultation on krill by-catch data collection practices CCAMLR Secretariat
WG-FSA-2021/06	Trend analysis – 2021 research blocks biomass estimates CCAMLR Secretariat
WG-FSA-2021/07	Toothfish catch forecasting process and implementation review CCAMLR Secretariat
WG-FSA-2021/08	Estimation of capacity in CCAMLR krill fisheries CCAMLR Secretariat
WG-FSA-2021/09	Tag linking – 2021 Report CCAMLR Secretariat
WG-FSA-2021/10	Commercial form updates, and a proposed new fine scale haul by haul longline form and commercial data manual CCAMLR Secretariat
WG-FSA-2021/11	Gear loss reported by longline fishing vessels for the 2020 and 2021 fishing seasons CCAMLR Secretariat
WG-FSA-2021/12	Report of the UK Groundfish Survey at South Georgia (CCAMLR Subarea 48.3) in May 2021 M.A. Collins, J. Coleman, S. Gregory, P.R. Hollyman, R. James, M. Marsh, J. Reid and P. Socodo
WG-FSA-2021/13	Results from net monitoring cable bird-strike trials; basis for amending CM 25-03 to allow the use of net monitoring cables for vessels using the continuous pumping fishing method? B.A. Krafft, A. Lowther, S. Young, J. Moir Clark, J. Chapman, P. Nugent, S. Jennings, X. Zhao, G. Fan and J. Zhu
WG-FSA-2021/14	Method description of Trial #2; examining bird interactions with monitoring cables on krill trawlers using continuous trawling methods, during the 2020/21 fishing season B.A. Krafft, A. Lowther, S. Young, J. Moir Clark, J. Chapman, P. Nugent, S. Jennings, X. Zhao and N. Walker
WG-FSA-2021/15	Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Subarea 48.3 based on the 2021 Groundfish Survey T. Earl
WG-FSA-2021/16	Using the Risk Assessment Framework to spread the catch limit in Subarea 48.1 V. Warwick-Evans and P.N. Trathan
WG-FSA-2021/17	Summary of the intersessional work and discussion by the CCAMLR Risk assessment framework e-group V. Warwick-Evans, on behalf of the Risk assessment framework e-group
WG-FSA-2021/18	Report on exploratory fishing in Divisions 58.4.1 and 58.4.2 between the 2011/12 and 2020/21 fishing seasons G. Phillips and P. Ziegler
WG-FSA-2021/19	Estimates of abundance of Dissostichus eleginoides and Champsocephalus gunnari from the random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2 for 2021 C. Miller, P. Ziegler and T. Lamb
WG-FSA-2021/20	A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2021 random stratified trawl survey D. Maschette, S. Wotherspoon and P. Ziegler
WG-FSA-2021/21	Draft integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2 P. Ziegler
WG-FSA-2021/22	Results from a three-year survey, 2017–2019, into the connectivity of toothfish species in Subareas 48.2 and 48.4 M. Söffker, O. Hogg, P. Hollyman, M. Belchier, A. Riley, L. Readdy, E. MacLeod, G. Robson, K. Olsson, H. Pontalier and C. Darby
WG-FSA-2021/23	2021 Ross Sea shelf survey results J. Devine, S. Parker and M. Prasad
WG-FSA-2021/24	Characterisation of the toothfish fishery in the Ross Sea region through 2020/21 A. Grüss, J. Devine and S. Parker
WG-FSA-2021/25	Summary of the toothfish fishery and tagging program in the Amundsen Sea region (small-scale research units 882C–H) to 2020/21 A. Grüss, J. Devine and S. Parker
WG-FSA-2021/26	Assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2020/21 A. Grüss, A. Dunn and S. Parker
WG-FSA-2021/27	Diagnostic plots for the 2021 assessment for Ross Sea region Antarctic toothfish (Dissostichus mawsoni) A. Grüss, A. Dunn and S. Parker
WG-FSA-2021/28	Stock Annex for the 2021 assessment of Ross Sea region Antarctic toothfish (Dissostichus mawsoni) A. Grüss, A. Dunn and S. Parker
WG-FSA-2021/29	Towards improved biomass estimation and stock assessment in the Amundsen Sea region (SSRUs 882C–H) S. Parker, M. Baird and N. Walker
WG-FSA-2021/30	Workshop proposal to update the fishery-based research and data collection plan for the Ross Sea region toothfish fishery Delegation of New Zealand
WG-FSA-2021/31	Development of Casal2 A. Dunn and S. Rasmussen
WG-FSA-2021/32	Catches and data available on bycatch species from the toothfish fishery in the Ross Sea region (Subarea 88.1 and SSRUs 88.2A–B) through 2020–2021 B. Moore and S. Parker
WG-FSA-2021/33	Update of 2-year tagging program for skates in the Ross Sea region B. Moore, B. Finucci and S. Parker
WG-FSA-2021/34	New research plan for Dissostichus spp. under CM 24-01, paragraph 3 in Subarea 88.3 by Korea and Ukraine from 2021/22 to 2023/24 Delegations of the Republic of Korea and Ukraine
WG-FSA-2021/35	Molecular diet analysis of Antarctic toothfish (Dissostichus mawsoni) collected from Subarea 88.1 S.R. Lee, S.-G. Choi, S. Chung, D. N. Kim and H.-W. Kim
WG-FSA-2021/36	Diet composition and feeding strategy of Antarctic toothfish, Dissostichus mawsoni in Subarea 88.1 for the exploratory longline fishery in 2021 G.W. Baeck, S.-G. Choi, S. Chung and D.N. Kim
WG-FSA-2021/37	The variability of egg and larval transport of Antarctic toothfish under the extreme SAM event in the East Antarctic region (Division 58.4.1 and 58.4.2) M. Mori, K. Mizobata, K. Kusahara, T. Ichii and T. Okuda
WG-FSA-2021/38	Revised proposal for continuing research on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2021/22 from a multiyear plan (2021/22–2023/24): Research Plan under CM 21-02, paragraph 6(iii) Delegations of Japan, South Africa and Spain
WG-FSA-2021/39	Grym assessment for Subarea 48.1 Euphausia superba populations D. Maschette, S. Wotherspoon, S. Kawaguchi and P. Ziegler
WG-FSA-2021/40	Use of parameters within Euphausia superba Grym simulations D. Maschette and S. Wotherspoon
WG-FSA-2021/41	On the revision of the precautionary approach to ensure the rational use of the living resource (Dissostichus eleginoides) in Subarea 48.3 Delegation of the Russian Federation
WG-FSA-2021/42	Proposal for new multi-Member research on Dissostichus spp. in Divisions 58.4.1 and 58.4.2 from 2021/22 to 2023/24 Delegation of the Russian Federation
WG-FSA-2021/43	Impact of grenadier by-catch limits on surveys of toothfish in CCAMLR’s area of responsibility under CM 24-01 (based on research surveys by Ukrainian vessels) Delegation of Ukraine
WG-FSA-2021/44	Summary report on the three years research for Dissostichus spp. in Subarea 48.1 by Ukrainian vessel Calipso in 2019–2021 Delegation of Ukraine
WG-FSA-2021/45	An integrated stock assessment for the Crozet Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Subarea 58.6 F. Massiot-Granier and C. Péron
WG-FSA-2021/46	Updated stock assessment model for the Kerguelen Island EEZ Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.1 for 2021 F. Massiot-Granier, S. Landru and C. Peron
WG-FSA-2021/47	Stock Annex for the 2021 assessment of the Patagonian toothfish (Dissostichus eleginoides) population of Kerguelen F. Massiot-Granier and C. Péron
WG-FSA-2021/48	Progress on the spatial modelling of by-catch patterns for research fishing operations in Subarea 48.6 using VAST K. Sawada and T. Okuda
WG-FSA-2021/49	Preliminary results on the progress of the integrated stock assessment by CASAL for Antarctic toothfish Dissostichus mawsoni in Subarea 48.6 Y. Osawa, K. Sawada and T. Okuda
WG-FSA-2021/50	Final report of research fishing operations at Subarea 48.6 between the 2012/13 and 2020/21 fishing seasons Delegations of Japan, Spain and South Africa
WG-FSA-2021/51	Final report of research fishing operations at Division 58.4.4b between the 2016/17 and 2020/21 fishing seasons Delegations of Japan and France
WG-FSA-2021/52	Updating CASAL model for D. eleginoides at Division 58.4.4b for 2020/21 fishing season T. Okuda and F. Massiot-Granier
WG-FSA-2021/53	A comparison of methods used for assessing the ontogenetic variation in otolith shape for Dissostichus mawsoni G.P. Zhu, L. Wei, D. Yang, T. Okuda, I. Slypko, S. Somhlaba and S. Parker
WG-FSA-2021/54	Comparing otolith shape of Patagonian toothfish (Dissostichus eleginoides) between the Kerguelen Islands and the Crozet Islands, East Antarctic G.P. Zhu, D. Yang and L. Wei
WG-FSA-2021/56	The potential impact of krill fishery concentration needs to be assessed against the highly patchy and dynamic nature of krill distribution X. Zhao, X. Wang, Y. Ying, G. Fan, Q. Xu, D. Gao and Y. Zhao
WG-FSA-2021/57	Diagnostic plots for the 2021 assessment model for the Kerguelen Island EEZ Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.1 F. Massiot-Granier and C. Péron
WG-FSA-2021/58	Description of the SAGO Extreme fishing system on the Patagonian toothfish (Dissostichus eleginoides) fishery in the Southwestern Atlantic Ocean during austral summer 2021 A. Loureiro, P. Troncoso and O. Pin
WG-FSA-2021/59	Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 T. Earl and L. Readdy
WG-FSA-2021/60	Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3: assessment diagnostics T. Earl and L. Readdy
WG-FSA-2021/61	Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.4 T. Earl and L. Readdy
WG-FSA-2021/62	Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.4: assessment diagnostics T. Earl and L. Readdy
WG-FSA-2021/63 Rev. 1	Preliminary tag-recapture based population assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 48.4 – 2021 fishing season T. Earl, A. Riley and L. Readdy
WG-SAM-2021/02	Notification for the Ross Sea shelf survey in 2022 Delegation of New Zealand
WG-SAM-2021/03	Continuing research in the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22; Research plan under CM 21-02, paragraph 6(iii) Delegations of Australia, France, Japan, Republic of Korea and Spain
CCAMLR-40/BG/03 Rev. 1	Fishery Notifications 2021/22 CCAMLR Secretariat
SC-CAMLR-40/BG/01	Catches of target species in the Convention Area CCAMLR Secretariat

WG-EMM-2021

Full Name:

Working Group on Ecosystem Monitoring and Management

Meeting documents

Doc Number	Title
WG-EMM-2021/01	Diet of Adélie penguin and emperor penguin given the regional differences in the Ross Sea region, Antarctica S.-Y. Hong, J.-K. Gal, B. Lee, W. Son, J.-W. Jung, H.S. La, K.-H. Shin, J.-H. Kim and S.-Y. Ha
WG-EMM-2021/02	Molecular diet analysis of Pygoscelis adeliae in the Ross Sea using fecal DNAs N. Tabassum, J.-H. Lee, J.-H. Kim, H. Park and H.-W. Kim
WG-EMM-2021/03	The foraging behaviour of nonbreeding Adélie penguins in the western Antarctic Peninsula during the breeding season W.C. Oosthuizen, P.A. Pistorius, M. Korczak-Abshire, J.T. Hinke, M. Santos and A.D. Lowther
WG-EMM-2021/04	Workshop report and synthesis: United States research and monitoring in support of the Ross Sea region Marine Protected Area D. Ainley and C. Brooks
WG-EMM-2021/05 Rev. 1	Results from the WG-ASAM intersessional e-group on Krill biomass estimates from acoustic surveys WG-ASAM e-group on Krill biomass estimates from acoustic surveys
WG-EMM-2021/06	Preliminary results of the density and distribution of krill larvae in the Mar de la Flota (Bransfield Strait) including Gerlache Strait and South Shetland surroundings during summer 2017–2020 E. Rombolá, M. Sierra, B. Meyer and E. Marschoff
WG-EMM-2021/07	An overview of the ecosystem survey to quantify krill abundance for krill monitoring and management in Eastern Sector of CCAMLR Division 58.4.2: Trends in Euphausiids off Mawson, Predators, and Oceanography “TEMPO” N. Kelly, S. Bestley, A. Burns, L. Clarke, K. Collins, M. Cox, D. Hamer, R. King, J. Kitchener, G. Macaulay, D. Maschette, J. Melvin, B. Miller, A. Smith, L. Suter, K. Westwood, S. Wotherspoon and S. Kawaguchi
WG-EMM-2021/08	Annual report of the SCAR Krill Action Group (SKAG) 2021 B. Meyer, J. Arata, A. Atkinson, C. Cárdenas, R. Cavanagh, M. Collins, J. Conroy, C. Darby, T. Dornan, R. Driscoll, S. Fielding, S. Grant, S. Hill, J. Hinke, S. Kawaguchi, S. Kasatkina, D. Kinzey, T. Knutsen, B. Krafft, L. Krüger, A. Lowther, E. Murphy, F. Perry, C. Reiss, E. Rombolá, F. Santa Cruz, M. Santos, F. Schaafsma, A. Sytov, P. Trathan, A. Van de Putte and G. Watters
WG-EMM-2021/09	Effect of spatial scale on hotspot analysis of Antarctic krill (Euphausia superba) distribution G.P. Zhu and H. Liu
WG-EMM-2021/10	Krill biology and size composition in Subarea 48.1 and 48.2 based on the RV Atlantida survey in 2020 A. Sytov and D. Kozlov
WG-EMM-2021/11	Results of krill flux study in Subarea 48.1 based on RV Atlántida survey in 2020 V. Shnar, S. Kasatkina, A. Abramov and D. Shurin
WG-EMM-2021/12	Krill distribution and environment in Subareas 48.1 and 48.2 from results of the RV Atlántida cruise in 2020 S. Kasatkina, V. Shrar, A. Abramov, M. Sokolov, D. Shurin, A. Sytov and D. Kozlov
WG-EMM-2021/13	Functional responses of penguins: building towards better monitoring indices for adaptive management of the Antarctic krill fishery C. Oosthuizen, P. Pistorius, A. Makhado and A. Lowther
WG-EMM-2021/14	New Zealand research and monitoring in the Ross Sea region in support of the Ross Sea region Marine Protected Area: 2021 update M.H. Pinkerton
WG-EMM-2021/15	Ross Sea Life in a Changing Climate (ReLiCC) 2021 Voyage, 4 January – 17 February 2021 R. O'Driscoll, A. Pallentin, A. Gutierrez Rodriguez, K. Safi, C. Law, C. Chin, P. Escobar-Flores, Y. Ladroit, P. Marriott, M. Gall, S. George, S. Seabrook, M. Druce, V. Cummings and M. Pinkerton
WG-EMM-2021/16	A review of krill green-weight estimation using parameters submitted by vessels in C1 data, from methods specified in CM 21-03, Annex B CCAMLR Secretariat
WG-EMM-2021/17	Observations of birds and mammals in Subareas 48.1 and 48.2 provided by the Russian RV Atlantida during January–March 2020: species composition and abundance I. Trufanova, S. Kasatkina and M. Sokolov
WG-EMM-2021/18	Summary report of progress on spatial layers to support the development of the Weddell Sea MPA Phase 2 G.P. Griffith, B. Merkel, T. Hattermann, J. Aarflot, H. Kauko, A. Skoglund, C. vonQuillfeldt, A. Høgestøl, B. Njåstad and B.A. Krafft with contributions from the participants at the International Scientific Workshop (digital) 10–12 May 2021
WG-EMM-2021/19 Rev. 1	The commercial fishery and pygoscelid penguins at three breeding sites in the Bransfield Strait, Subarea 48.1 A. Lowther, H. Ahonen, C. Cárdenas, W. Jouanneau, B. Krafft, L. Krüger, A. Makkhado, A. Narvestad and C. Oosthuizen
WG-EMM-2021/20	Intra-season variations in distribution and abundance of humpback whales in the West Antarctic Peninsula using cruise vessels as opportunistic platforms E. Johannessen, M. Biuw, U. Lindstrøm, V. Ollus, L. Lopez, K. Gkikopoulou, C. Oosthuizen and A. Lowther
WG-EMM-2021/21	A preliminary evaluation of the evidence supporting fishery-driven localised depletion effects on the performance and demographic trends of pygoscelid penguins in Subarea 48.1 A. Lowther, M. Biuw, U. Lindstrøm and B. Krafft
WG-EMM-2021/22	Phytoplankton and zooplankton in Subareas 48.1 and 48.2 in January–March 2020 S.V. Аleksandrov, N.P. Dyushkov, S.N. Arkhipovsky and A.S. Semenova
WG-EMM-2021/23	Using models to improve our understanding of Antarctic krill and their ecological role: Report of the Integrating Climate and Ecosystem Dynamics of the Southern Ocean (ICED) workshop, 2021 Z. Sylvester, D. Veytia, A. Bahl, D. Bahlburg, E. Murphy, N. Johnston, S. Corney, C. Brooks, B. Meyer, E. Hofmann and S. Thorpe
WG-EMM-2021/24	CCAMLR Ecosystem Monitoring Program on Ardley Island A.L. Machado, M. Santos, L. Emmerson and A. Soutullo
WG-EMM-2021/25	Update on the activities SCAR Antarctic Biodiversity Portal A.P. Van de Putte, M. Sweetlove and Y.M. Gan
WG-EMM-2021/26	Estimating the average distribution of Antarctic krill at the northern Antarctic Peninsula V. Warwick-Evans, S. Fielding, C.S. Reiss, G.M. Watters and P.N. Trathan
WG-EMM-2021/27	Using the Risk Assessment Framework to spread the catch limit in Subarea 48.1 V. Warwick-Evans, L. Dalla Rosa, J.T. Hinke, N. Kelly, C. Reiss, E.R. Secchi, E. Seyboth, G.M. Watters, D. Welsford and P.N. Trathan
WG-EMM-2021/28	Using seabird and whale distribution models to estimate spatial consumption of Antarctic krill to inform fishery management V. Warwick-Evans, N. Kelly, L. Dalla Rosa, A. Friedlaender, J.T. Hinke, J.H. Kim, N. Kokubun, J.A. Santora, E.R. Secchi, E. Seyboth and P.N. Trathan
WG-EMM-2021/29	Towards a risk assessment for Subareas 48.2 and 48.3 V. Warwick-Evans, F. Perry, S. Fielding and P.N. Trathan
WG-EMM-2021/30	Designation of a newly exposed marine area adjacent to Pine Island Glacier (Subarea 88.3) as a Stage 1 Special Area for Scientific Study S.M. Grant, P.N. Trathan and L. Ireland
WG-EMM-2021/31	Sympatric species respond differently to environmental change I.J. Martinez, A. Kacelnik, F. Jones, M. Dunn and T. Hart
WG-EMM-2021/32	Characteristic spatial scale of distribution for Antarctic krill (Euphausia superba) density in the Antarctic Peninsula G.P. Zhu and H. Liu
WG-EMM-2021/33	A simple first step towards a science-based krill management for Subarea 48.1 X. Zhao, X. Wang, G. Fan and Y. Ying
WG-EMM-2021/34	Cetacean observations onboard krill fishing vessel near the Southern Orkney islands during Australian summer 2020/21 K. Vishnyakova and J. Ivanchikova
WG-EMM-2021/35	Parasitological monitoring of the fish species in the CCAMLR Area 48 T. Kuzmina, K. Vishnyakova and J. Ivanchikova
WG-EMM-2021/P01	Acoustic detection of krill scattering layer in the Terra Nova Bay Polynya, Antarctica M. Kang, R. Fajaryanti, W. Son, J.-H. Kim and H.S. La
WG-EMM-2021/P02	Evidence for the impact of climate change on primary producers in the Southern Ocean M. Pinkerton, P. Boyd, S. Deppeler, A. Hayward, J. Höfer and S. Moreau
WG-EMM-2021/P03	Estimating variability and long-term change in sea ice primary productivity using a satellite-based light penetration index M. Pinkerton and A. Hayward
WG-EMM-2021/P04	Ross Sea benthic ecosystems: macro- and mega-faunal community patterns from a multi-environment survey V.J. Cummings, D.A. Bowden, M.H. Pinkerton, N.J. Halliday and J.E. Hewitt
WG-EMM-2021/P05	Risk assessment of SARS-CoV-2 in Antarctic wildlife A. Barbosa, A. Varsani, V. Morandini, W. Grimaldi, R.E.T. Vanstreels, J.I. Diaz, T. Boulinier, M. Dewar, D. González-Acuña, R. Gray, C.R. McMahon, G. Miller, M. Power, A. Gamble and M. Wille
WG-EMM-2021/P06	Multi-scale assessment of distribution and density of procellariiform seabirds within the Northern Antarctic Peninsula marine ecosystem V. Warwick-Evans, J.A. Santora, J.J. Waggitt amd P.N. Trathan
WG-EMM-2021/P07	Utilising IPCC assessments to support the ecosystem approach to fisheries management within a warming Southern Ocean R.D. Cavanagh, P.N. Trathan, S.L. Hill, J. Melbourne-Thomas, M.P. Meredith, P. Hollyman, B.A. Krafft, M.M.C. Muelbert, E.J. Murphy, M. Sommerkorn, J. Turner and S.M. Grant

WG-SAM-2021

Full Name:

Working Group on Statistics, Assessments and Modelling

Meeting documents

Doc Number	Title
WG-SAM-2021/01	New research plan for Dissostichus spp. under CM 24-01, paragraph 3 in Subarea 88.3 by Korea and Ukraine from 2021/22 to 2023/24 Delegations of the Republic of Korea and Ukraine
WG-SAM-2021/02	Notification for the Ross Sea shelf survey in 2022 Delegation of New Zealand
WG-SAM-2021/03	Continuing research in the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22; Research plan under CM 21-02, paragraph 6(iii) Delegations of Australia, France, Japan, Republic of Korea and Spain
WG-SAM-2021/04 Rev. 2	Proposal for continuing research on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2021/22 from a multiyear plan (2021–2024): Research Plan under CM 21-02, paragraph 6(iii) Delegations of Japan, South Africa and Spain
WG-SAM-2021/05	Proposal to conduct a local survey of Champsocephalus gunnari in Statistical Subarea 48.2 Delegation of Ukraine
WG-SAM-2021/06	Provisional Trend Analysis – Preliminary 2021 research blocks biomass estimates CCAMLR Secretariat
WG-SAM-2021/07	Antarctic krill proportional recruitment indices (2010–2020) in Subareas 48.1–48.3 from the observer data CCAMLR Secretariat
WG-SAM-2021/08	Preliminary exploration of H-based decision rules for managing toothfish fisheries R. Hillary, P. Ziegler and J. Day
WG-SAM-2021/09	Recruitment modelling for Euphausia superba stock assessments considering the recurrence of years with low recruitment C. Pavez, S. Wotherspoon, D. Maschette, K. Reid and K. Swadling
WG-SAM-2021/10	Multi-fleet stock assessment modelling with the Grym J. Liu, S. Wotherspoon and D. Maschette
WG-SAM-2021/11	Analysis of the factors influencing the fishing impact zone for the longline toothfish fishery O. Krasnoborodko, S. Kasatkina and A. Remeslo
WG-SAM-2021/12	Grym parameter values for Subareas 48.1, 48.2 and 48.3 S. Thanassekos, K. Reid, S. Kawaguchi, S. Wotherspoon, D. Maschette, P. Ziegler, D. Welsford, G. Watters, D. Kinzey, C. Reiss, C. Darby, P. Trathan, S. Hill, T. Earl, S. Kasatkina and Y.-P. Ying
WG-SAM-2021/13	Updated stock assessment model for the Antarctic toothfish (Dissostichus mawsoni) population of the Ross Sea region for 2021 A. Grüss, A. Dunn and S. Parker
WG-SAM-2021/14	Diagnostic plots for the 2021 assessment model for the Antarctic toothfish (Dissostichus mawsoni) population of the Ross Sea region A. Grüss, A. Dunn and S. Parker
WG-SAM-2021/15	Stock Annex for the 2021 assessment of the Antarctic toothfish (Dissostichus mawsoni) population of the Ross Sea region A. Grüss, A. Dunn and S. Parker
WG-SAM-2021/16	Options to include the Ukrainian quarantined data to the CCAMLR database I. Slypko and K. Demianenko
WG-SAM-2021/17	Report on the toothfish survey in the Subarea 48.1 by the Ukrainian vessel Calipso in 2021 Delegation of Ukraine
WG-SAM-2021/18	Research Plan under CM 21-02, paragraph 6 (iii). Proposal for new multi-Member research on Dissostichus spp. in Divisions 58.4.1 and 58.4.2 from 2021/22 to 2023/24 Delegation of the Russian Federation
WG-SAM-2021/19	Proportional recruitment and weight-length relationship for krill in Subarea 48.1 and 48.2 from RV Atlantida survey, 2020 S. Kasatkina and S. Sergeev
WG-SAM-2021/20 Rev. 1	Summary of proportional recruitment and multiyear biomass variability for krill in Subarea 48 from research surveys D. Kinzey
WG-SAM-2021/21	2021 updated analysis of the sea ice concentration (SIC) in research blocks 4 (RB4), and 5 (RB5) of Subarea 48.6 with sea surface temperature (SST) and winds T. Namba, R. Sarralde, T. Ichii, T. Okuda, S. Somhlaba and J. Pompert
WG-SAM-2021/22	Moving from biomass estimates towards precautionary catch limit: spatial scale revisited Y. Ying, X. Wang, X. Zhao, Y. Zhao, G. Fan and J. Zhu

WG-ASAM-2021

Full Name:

Working Group on Acoustic Survey and Analysis Methods

Meeting documents

Doc Number	Title
WG-ASAM-2021/01	Repository of acoustic data collected by fishing vessels CCAMLR Secretariat
WG-ASAM-2021/02	Biases in acoustic biomass density estimates used for calculating catch limits C.S. Reiss, J. Hinke, A.M. Cossio, G.R. Cutter and G.M. Watters
WG-ASAM-2021/03	Comparison analysis of krill length compositions from catches obtained by research and commercial midwater trawls S. Sergeev and S. Kasatkina
WG-ASAM-2021/04 Rev. 1	Results of acoustic survey in Subarea 48.1 and 48.2 carried out by Russian RV «Atlántida» in 2020 S. Kasatkina, A. Abramov, M. Sokolov, A. Sytov and D. Kozlov
WG-ASAM-2021/05 Rev. 1	Analysis of acoustic data to examine spatial and temporal variability of krill distribution from repeated transects S. Kasatkina, A. Abramov, M. Sokolov and A. Malyshko
WG-ASAM-2021/06	A revised biomass estimation of Antarctic krill based on the up-to-date swarm based method for CCAMLR Division 58.4.1 in 2018/19 using data obtained by Japanese survey vessel, Kaiyo-maru K. Abe, R. Matsukura, N. Yamamoto, K. Amakasu and H. Murase
WG-ASAM-2021/07	Echogram noise removal can remove significant amounts of krill backscatter G. Macaulay, G. Skaret and B. Krafft
WG-ASAM-2021/08	Using unmanned surface vehicles to monitor krill density during fishing and obtain regular updates of pre-exploitation biomass S. Menze, A. Lowther and B.A. Krafft
WG-ASAM-2021/09	The various spatial scales available for consideration and the distribution of the krill fishery in Subarea 48.1 Y. Ying, X. Zhao, G. Fan and X. Wang
WG-ASAM-2021/10	Potential effect of the chosen length-frequency distribution on acoustic biomass estimates of Antarctic krill X. Wang, X. Zhao and Q. Xu
WG-ASAM-2021/11	Monthly variation of Antarctic krill biomass in a main fishing ground in the Bransfield strait based on fishing vessel acoustic data collected during routine fishing operations Y. Zhao, X. Wang, X. Zhao, Y. Ying and J. Zhang
WG-ASAM-2021/12	Biomass of Antarctic krill (Euphausia superba) in the eastern sector of the CCAMLR Division 58.4.2 M.J. Cox, G. Macaulay, N. Kelly, R. King, D. Maschette, J. Melvin, A. Smith, S. Wotherspoon and S. Kawaguchi
WG-ASAM-2021/13	Biomass estimates of Antarctic krill around the South Shetland Islands based on surveys conducted by a Chinese fishing vessel from 2013 to 2019 X. Wang, X. Yu, X. Zhao, J. Zhang, G. Fan, Y. Ying and J. Zhu
WG-ASAM-2021/14	Developing plausible estimates of subarea and fished area biomasses B.A. Krafft, G. Macaulay, S. Fielding and P.N. Trathan
WG-ASAM-2021/15	Acoustic transects undertaken by fishing vessels at South Georgia S. Fielding, J. Arata and P.N. Trathan
WG-ASAM-2021/P01	Glider-Based Estimates of Meso-Zooplankton Biomass Density: A Fisheries Case Study on Antarctic Krill (Euphausia superba) Around the Northern Antarctic Peninsula C.S. Reiss, A.M. Cossio, J. Walsh, G.R. Cutter and G.M. Watters