WG-FSA-2025

The Secretariat received fishery notifications for exploratory fisheries for toothfish and krill fisheries for the 2025/26 CCAMLR fishing season. This paper provides a summary of all fishery notifications with full details available to authenticated users through the CCAMLR website at Read More
Представлено (имя):
Ms Mariana Cordeiro (Секретариат АНТКОМ)

Утверждено (имя):
Ms Mariana Cordeiro (Секретариат АНТКОМ)

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This paper summarises the outcomes of the Capacity Building for Development of Integrated Stock Assessments (Cap-DLISA) workshop held in Santa Cruz de Tenerife, Spain, immediately following the meeting of WG-SAM-2025. The workshop, funded through the CCAMLR General Capacity Building Fund (GCBF), focused on developing Member scientists' Read More
Представлено (имя):
Mr Sobahle Somhlaba (Южная Африка)

Утверждено (имя):
Dr Azwianewi Makhado (Южная Африка)

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This paper presents a brief overview of catches of target species from directed fishing on toothfish, icefish and krill in the Convention Area in 2023/24 and 2024/25 seasons and from research fishing under Conservation Measure (CM) 24-01. The CCAMLR fisheries catch limits and associated monthly catches in the 2024/25 season are also presented with dates of fisheries closures implemented Read More
Представлено (имя):
Ms Mariana Cordeiro (Секретариат АНТКОМ)

Утверждено (имя):
Ms Mariana Cordeiro (Секретариат АНТКОМ)

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In 2024 a group of research experts within the Scientific Committee on Antarctic Research (SCAR) formed an Action Group focused on fish: “SCARFISH”. SCARFISH aims to bring together research communities by facilitating knowledge exchange, Read More
Представлено (имя):
Mrs Agnes Ganichaud (СКАР)

Утверждено (имя):
Mrs Agnes Ganichaud (СКАР)

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Individual fishing events are classified by “type” in CCAMLR catch and effort, and haul by haul vessel reporting forms. The needs for these classifications have changed through time and currently the categories are not recorded in a consistent and coordinated manner, creating confusion for instructions and for any use of the data. This paper explains the current Read More
Представлено (имя):
Dr Steve Parker (Секретариат АНТКОМ)

Утверждено (имя):
Dr David Agnew (Секретариат АНТКОМ)

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Biomass estimates for research blocks in data-limited toothfish fisheries and the resulting recommended catch limits for the 2026 season have been determined using the trend analysis decision rules.

This paper provides information on CCAMLR Scheme of International Scientific Observation deployments during the 2025 season (based on data received by the Secretariat up to 15 September 2025). In the 2025 season to date there were 36 longline trips and 11 trawl trips observed. For season 2026, changes to observer forms, updated manuals and Read More
Представлено (имя):
Mr Isaac Forster (Секретариат АНТКОМ)

Утверждено (имя):
Dr David Agnew (Секретариат АНТКОМ)

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Following a recommendation by WG-FSA-IMAF-2024, this analysis presents an analysis of total by-catch in the krill fishery. Unlike previous analyses, rather than focusing on fish by-catch, all reported taxa were considered. Further, the upscaling of observer records (from 25 kg subsamples of the catch) to total catch was conducted without the use of crew-reported by-catch. Upscaled by-catch was Read More
Представлено (имя):
Dr Stéphane Thanassekos (Секретариат АНТКОМ)

Утверждено (имя):
Dr David Agnew (Секретариат АНТКОМ)

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An analysis of the Sea Ice Concentration (SIC), Sea Surface Temperature (SST) and winds in Research Blocks (RBs) 48.6_5 and 48.6_4 is presented. The SICs in RB5 and RB4 from Jan to Mar 2025 were the second and the third lowest respectively in the 2018-2025 period.

SST spike in both RB5 and RB4 reverse to a decreasing trend in 2025, after reaching the highest in 2024. This suggests that Read More
Представлено (имя):
Mr Roberto Sarralde Vizuete (Испания)

Утверждено (имя):
Mr Roberto Sarralde Vizuete (Испания)

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First presented in WG-SAM-2025/07, this paper provides details on proposed new separate C6 and C1 haul by haul forms for finfish and krill trawl fisheries and accompanying instructions for review by WG-FSA. The forms incorporate recommended fields from WG-IMAF to clarify how incidental mortalities are reported on vessels, and recommendations from WG-SAM-2025 and WG-EMM-2025. The paper Read More
Представлено (имя):
Mr Isaac Forster (Секретариат АНТКОМ)

Утверждено (имя):
Dr David Agnew (Секретариат АНТКОМ)

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Results are presented from the combined by-catch, marine mammal exclusion device and stick water composition survey circulated to Members participating in krill fisheries in 2025. By-catch data collection and reporting practices were fairly uniform across the krill fleet, however the construction of marine mammal exclusion devices and stick water composition was variable. Read More
Представлено (имя):
Mr Isaac Forster (Секретариат АНТКОМ)

Утверждено (имя):
Dr David Agnew (Секретариат АНТКОМ)

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This paper summarises data collected by Scheme of International Scientific Observation observers and vessels reporting incidental interactions between fishing vessels, seabirds and marine mammals during fishing activities undertaken during the 2025 season, and presents extrapolations of incidents based on per observed cruise observation effort. The per-cruise extrapolated total of 30 Read More
Представлено (имя):
Mr Isaac Forster (Секретариат АНТКОМ)

Утверждено (имя):
Dr David Agnew (Секретариат АНТКОМ)

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During the 2025/26 austral summer, R/V Polarstern will embark on an expedition to characterize biodiversity and marine ecosystems in the Weddell Sea as part of the Weddell Sea Observatory of Biodiversity and Ecosystem Change (WOBEC) initiative. Here we describe a set of objectives specific to Antarctic toothfish and other nototheniod finfish species. Sampling will be undertaken in the shelf Read More
Представлено (имя):
Dr Christopher Jones (Соединенные Штаты Америки)

Утверждено (имя):
Dr Lauren Fields (Соединенные Штаты Америки)

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This paper provides a summary of catch and effort in the Antarctic toothfish (Dissostichus mawsoni) and Patagonian toothfish (D. eleginoides) fisheries around Subarea 48.4, together with more detailed description of the biological Read More
Представлено (имя):
Dr Timothy Earl (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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The CCAMLR Statistical Subarea 48.3 icefish assessment was conducted by applying the standard projection methodology that has been agreed for this stock by CCAMLR Scientific Committee and its Working Groups. The stratified bootstrap of the UK 2025 demersal fish survey icefish catch density and catch rate data indicate a precautionary biomass estimate of 78,124 tonnes (lower one-sided 5<sup>th Read More
Представлено (имя):
Dr Timothy Earl (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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In order to address the Commission’s request to develop a Management Strategy Evaluation (MSE) for toothfish, work has been undertaken by WG-SAM-2025 and intersessionally to progress this goal. We present an update on intersessional progress to develop a generic toothfish MSE framework based on Casal2. We propose potential performance indicators, based on the work of WG-SAM-2025, and breakout Read More
Представлено (имя):
Dr Timothy Earl (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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This paper describes an update of the assessment of Patagonian toothfish (D. eleginoides) in Subarea 48.4. The assessment data are updated with the observations for the 2023 and 2024 seasons. In addition to the inclusion of two further years’ data, alternative approaches to data-weighting for age-length observations used in the model are considered. Projections indicate that the stock Read More
Представлено (имя):
Dr Timothy Earl (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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This paper presents the complementary diagnostics associated with the Casal2 Patagonian toothfish assessment referred to as the “Final model” in Readdy and Earl (2025). These diagnostics, using observations up to and including 2024 and catch up to and including 2025, address the request from WG-SAM-2023 paragraph 6.33 (CCAMLR, 2023) to include these plots for Read More
Представлено (имя):
Dr Timothy Earl (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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The local biomass of Antarctic toothfish (Dissostichus mawsoni) in CCAMLR Subarea 48.4 is estimated from tagging returns, giving a five-year average of 846 tonnes. Applying the CCAMLR agreed harvest rate of 3.8 % results in a 2025/26 catch limit of 32 tonnes. We recommend that this is used to set the catch limit for the 2025/26 season.

Following the recommendation of WG- Read More
Представлено (имя):
Dr Timothy Earl (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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Stock Annex for the 2025 assessment of Subarea 48.4 Patagonian toothfish (Dissostichus eleginoides).

In 2024, Australia conducted a trial for structured fishing with a ‘Random Longline Survey’ (RLS) to conduct longline research hauls that could be used for the development of a time series of fishery-independent longline hauls and lead to the estimation of an unbiased tag-based abundance index for the stock assessment. The execution of the 2024 RLS trial was successful in that it resulted in Read More
Представлено (имя):
Dr Philippe Ziegler (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

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The annual random stratified trawl survey was undertaken in Division 58.5.2 in the vicinity of Heard Island and McDonald Islands during March 2025. Based on data from this survey, this paper provides a preliminary assessment for mackerel icefish (Champsocephalus gunnari) population structure, abundance and yield in Division 58.5.2 using standard CCAMLR methods (CMIX and Grym).
The 2025 Read More
Представлено (имя):
Dr Philippe Ziegler (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

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During March 2025, the annual random stratified trawl survey (RSTS) around Heard Island
and McDonald Islands (HIMI) was conducted in CCAMLR Division 58.5.2, with the completion
of 163 stations. The survey was conducted on the FV Cape Arkona. Sampling protocols
such as the design and the duration of the hauls were similar to recent surveys, but with a
new set of randomly selected Read More
Представлено (имя):
Dr Philippe Ziegler (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

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Exploratory fishing for Antarctic toothfish (Dissostichus mawsoni) in East Antarctica (Divisions 58.4.1 and 58.4.2) began in 2003. While preliminary integrated stock assessments have been developed for these Divisions, robust estimates of stock biomass and precautionary catch limits according to CCAMLR decision rules remain to be determined. Precautionary management Read More
Представлено (имя):
Dr Philippe Ziegler (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

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Macrourus species are the main bycatch across Southern Ocean longline fisheries, including around South Georgia, yet a persistent lack of species-specific data hinders effective management and ecological understanding. Aggregation of macrourids at genus level masks critical interspecific differences in life-history strategies and vulnerabilities to fishing. Here, we Read More
Представлено (имя):
Dr Martin Collins (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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The 2025 South Georgia Groundfish Survey took place over the South Georgia and Shag Rocks shelf on the FV Sil between the 25^th January and 7^th of February 2025. Seventy-eight 30-minute trawls were completed in depth zones 1 (100-200 m) and 2 (200-350 m) as part of the standard trawl survey. This included 18 at Shag Rocks, 13 Read More
Представлено (имя):
Dr Martin Collins (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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In October 2024, the POKER (“POissons de KERguelen”) V survey was carried out around the Kerguelen Islands in CCAMLR Division 58.5.1, with the completion of 129 valid trawl stations. The sampling design was modified compared to previous POKER surveys (2006, 2010, 2013 and 2017) to focus on Patagonian toothfish recruitment. The demersal trawl survey was conducted on the Read More
Представлено (имя):
Dr Clara Péron (Франция)

Утверждено (имя):
Dr Marc Eléaume (Франция)

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Proposals and requirements for a standardized methodology for acoustic surveys for   assessment of fish  biomass in the pelagic area  are discussed.    It is proposed that acoustic surveys of fish in the CCAMLR area should provide (i) an estimate of the biomass and distribution of icefish in the pelagic zone; (ii) an estimate of the biomass and Read More
Представлено (имя):
Dr Svetlana Kasatkina (Российская Федерация)

Утверждено (имя):
Dr Svetlana Kasatkina (Российская Федерация)

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Parasites are an important but overlooked component in the marine ecosystem, however, the study on parasites of Antarctic fish, especially Antarctic toothfish (TOA, Dissostichus mawsoni), remains limited. Parasitic infection is closely linked to the economic value of TOA, which is a Read More
Представлено (имя):
Professor Guoping Zhu (Китай)

Утверждено (имя):
Dr Xianyong Zhao (Китай)

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A detailed understanding of the life cycles of fished species in relation to their environment is important for predicting the impacts of environmental change and integrating these considerations into management to ensure long-term sustainability. Here, we present findings from a study exploring the relationship between the abundance of early life stages of Patagonian toothfish ( Read More
Представлено (имя):
Dr Rachel Cavanagh (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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This study provided the first report on ageing precision, age and growth of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2, CCAMLR Convention Area. The APE and ACV values of ageing precision for D. mawsoni were 12.0±6.38 and 15.7±8.17 across 9 Read More
Представлено (имя):
Professor Guoping Zhu (Китай)

Утверждено (имя):
Dr Xianyong Zhao (Китай)

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In 2024 the Scientific Committee tasked the Secretariat to continue monitoring the performance of tag overlap statistics for vessels in exploratory fisheries, and to request and compile information from Members on their tagging protocol and strategy for vessels which achieved a tag overlap statistic of between 60% and 80% during the 2025 season. Fifteen instances (of 80 total) were Read More
Представлено (имя):
Mr Isaac Forster (Секретариат АНТКОМ)

Утверждено (имя):
Ms Mariana Cordeiro (Секретариат АНТКОМ)

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The Amundsen Sea region toothfish fishery has been ongoing since 2003. It is characterised by a highly variable pattern of fishing locations between year, combined with highly aggregated catches on specific seamounts. 

Despite best efforts, structured fishing has achieved tagging data that might be adequate to derive local estimates of abundance for Research Block 882_2 and Read More
Представлено (имя):
Dr Sophie Mormede (Новая Зеландия)

Утверждено (имя):
Mr Nathan Walker (Новая Зеландия)

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We summarise fishing catch and fishing effort in the Ross Sea region (Subarea 88.1 and Small-Scale Research Units 88.2A-B) together with biological characteristics of the catch of Antarctic toothfish (Dissostichus mawsoni) through the 2024–25 fishing season. The Ross Sea fishery has been in operation since 1997. Over that time, Read More
Представлено (имя):
Dr Sophie Mormede (Новая Зеландия)

Утверждено (имя):
Mr Nathan Walker (Новая Зеландия)

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There has been concerted efforts on increasing understanding of both the spatial structure of Patagonian toothfish as well as the characteristics of the longline tagging dataset available for the Heard Island and McDonald Island (HIMI) Patagonian toothfish fishery in Division 58.5.2.  This paper continues to progress this work by responding to recommendations from WG-SAM-2025 Read More
Представлено (имя):
Dr Cara Masere (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

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F/V Tronio conducted CTD deployments in Subarea 48.6 during February-March in 2020, 2021, 2024 and 2025, using two types of CTD equipment: Valeport FastCTD Profilers in 2020-2021 and SeaStar 9.32 CTD in 2024-2025.

According to the T-profiles, the surface (0–10 m) and subsurface (10–50 m) temperatures in 2024 and 2025 were higher than in 2020 and 2021 in both RB4 and Read More
Представлено (имя):
Mr Roberto Sarralde Vizuete (Испания)

Утверждено (имя):
Mr Roberto Sarralde Vizuete (Испания)

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The Ross Sea Shelf Survey (RSSS) has been a critical component of Antarctic toothfish stock assessment since 2012, incorporated as either an index of biomass or abundance with associated age composition data. This study evaluates the potential for age-specific abundance indices to improve monitoring of year class strength (YCS) and enhance Read More
Представлено (имя):
Mr Alistair Dunn (Новая Зеландия)

Утверждено (имя):
Mr Nathan Walker (Новая Зеландия)

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Macrourid species represent a high proportion of the bycatch in Southern Ocean toothfish longline fisheries. Here we report the first confirmed occurrence of the Whitson’s grenadier (Macrourus whitsoni) in the toothfish longline fishery bycatches in South Georgia (Subarea 48.3).  DNA barcoding of the Read More
Представлено (имя):
Dr Martin Collins (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

Публикация:
Submitted to Journal of Fish Biology

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This report characterises the Antarctic toothfish (Dissostichus mawsoni) fishery in CCAMLR Subarea 48.6 through the 2024/25 season, summarising catch and effort data, biological sampling, tagging results, age composition, and progress toward stock assessment. Since its inception in 1997, the fishery has evolved Read More
Представлено (имя):
Dr Mao Mori (Япония)

Утверждено (имя):
Dr Takehiro Okuda (Япония)

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Following SC-CAMLR recommendations, we present the first attempt to implement a sex-based stock assessment model for D. eleginoides in Division 58.5.1. We estimated updated sex-specific biological parameters, including growth, maturity, and length–weight relationships, through Bayesian and generalized linear modelling frameworks. These parameters were then integrated into a Casal2 Read More
Представлено (имя):
Dr Félix Massiot-Granier (Франция)

Утверждено (имя):
Dr Marc Eléaume (Франция)

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Within CCAMLR, the agreed mark-recapture model in integrated assessment models used to estimate biomass from toothfish tagging studies is the Chapman estimator.  Ongoing work has explored approaches to improve the reliability and robustness of the mark-recapture estimates that are derived from this method. An interim step has been to provide a degree of separation from the Read More
Представлено (имя):
Dr Cara Masere (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

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Understanding the environmental factors that drive the distribution of harvested fish species is essential for fisheries management, particularly in the context of climate change. Here, we investigated the spatial distribution of Patagonian toothfish (Dissostichus eleginoides) around South Georgia (Subarea 48.3) and the South Sandwich Islands (Subarea 48.4) in the southwest Atlantic Read More
Представлено (имя):
Dr Rachel Cavanagh (Соединенное Королевство)

Утверждено (имя):
Ms Mariana Cordeiro (Секретариат АНТКОМ)

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The random stratified trawl survey (RSTS) has been conducted annually since 1997 in waters less than 1000 m within the waters of Heard Island and McDonald Islands (HIMI) in Division 58.5.2. The RSTS provides valuable information about the abundance and composition of younger Patagonian toothfish (Dissostichus eleginoides Read More
Представлено (имя):
Dr Philippe Ziegler (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

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This paper demonstrates the use of publicly available data from Global Fishing Watch (GFW) to analyse fishing activity in the Ross and Amundsen Seas during the 2024/25 season. Using satellite-derived Automatic Identification System (AIS) data, vessel movements were assessed to identify apparent fishing effort (AFE) and differentiate genuine fishing events from other activities, such as Read More
Представлено (имя):
Mr Alistair Dunn (Новая Зеландия)

Утверждено (имя):
Mr Nathan Walker (Новая Зеландия)

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Dissostichus mawsoni (Antarctic toothfish) and Dissostichus eleginoides (Patagonian toothfish) are the most sought-after fish species in the Southern Ocean for fisheries and, as a consequence of the Convention, for the research of its biology, aspects of fishery and conservation Read More
Представлено (имя):
Dr Kostiantyn Demianenko (Украина)

Утверждено (имя):
Dr Kostiantyn Demianenko (Украина)

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This report proposes a preliminary framework of performance indicators (PIs), metrics, and breakout rules for the development of CCAMLR toothfish management strategies for Ross Sea region toothfish. The framework incorporates a three-tier status system for the management strategy that would trigger different scientific or management actions.

This report provides a framework of Read More
Представлено (имя):
Mr Alistair Dunn (Новая Зеландия)

Утверждено (имя):
Mr Nathan Walker (Новая Зеландия)

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This study presents preliminary results of modelling the transport of eggs and larvae of Antarctic Toothfish (Dissostichus mawsoni) in the Weddell Sea region using ocean and sea ice reanalysis data. Virtual particles were released from identified spawning grounds and tracked for three years under two surface Read More
Представлено (имя):
Dr Mao Mori (Япония)

Утверждено (имя):
Dr Takehiro Okuda (Япония)

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This paper proposes a continuation of the Ross Sea shelf survey (RSSS) for three years, 2026–2028. The primary objective (1) of the survey is to monitor Antarctic toothfish recruitment in the southern Ross Sea. This would be a continuation of the annual time series of research surveys carried out Read More
Представлено (имя):
Dr Sophie Mormede (Новая Зеландия)

Утверждено (имя):
Mr Nathan Walker (Новая Зеландия)

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Two species of Southern Ocean icefish (Channichthyidae) were recently assessed using the International Union for Conservation of Nature (IUCN) Red List of Threatened Species criteria, with the South Georgia icefish (Pseudochaenichthys georgianus) categorised as Endangered and the Scotia Sea (black fin) icefish (Chaenocephalus aceratus Read More
Представлено (имя):
Dr Martin Collins (Соединенное Королевство)

Утверждено (имя):
Dr Martin Collins (Соединенное Королевство)

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This paper represents the report of a multi-member exploratory longline fisheries on Antarctic toothfish (Dissostichus
mawsoni) in Subarea 48.6 between 2012/13 and 2024/25 fishing seasons. 2024/25 fishing season is the first year of four years research plan during 2024/25-2027/28 by Japan, Korea, South Africa, and Spain (WG-FSAIMAF-2024/23). The data set, C2 and Observer Read More
Представлено (имя):
Dr Takehiro Okuda (Япония)

Утверждено (имя):
Dr Takehiro Okuda (Япония)

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The 2025 Ross Sea shelf survey was successfully carried out, the fourteenth in the series. It contributed to the time series of information collected on the Ross Sea. Results from the 2025 survey indicated strong recruitment of Antarctic toothfish coming into the fishery. The time series of relative abundance and age structure in Antarctic toothfish from the Ross Sea shelf Read More
Представлено (имя):
Dr Sophie Mormede (Новая Зеландия)

Утверждено (имя):
Mr Nathan Walker (Новая Зеландия)

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This new research plan aims to update information on Patagonian Toothfish (Dissostichus eleginoides) in Subarea 48.3A during the 2025/26–2027/28 fishing seasons, following an 18-year data gap (2008–2025). The primary objectives are: a) obtain unbiased abundance estimates for Patagonian toothfish species using design-based methods; b) characterize Read More
Представлено (имя):
Mr Francisco Santa Cruz (Чили)

Утверждено (имя):
Mr Francisco Santa Cruz (Чили)

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This new research plan aims to update information for toothfish in Subarea 48.2 in the Northern (NRB) and Southern Research Blocks (SRB) during the 2025/26-2027/28 fishing seasons, following a six-year data gap (2019-2025). The primary objectives are: a) obtain unbiased abundance estimates for toothfish species using design-based methods for both research areas, correcting the spatial Read More
Представлено (имя):
Mr Francisco Santa Cruz (Чили)

Утверждено (имя):
Mr Francisco Santa Cruz (Чили)

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The stock structure of Antarctic toothfish (Dissostichus mawsoni) in Area 88 is under investigation to better define stock boundaries relevant to fishery management. Ontogenetic progression has been observed across the Ross, Amundsen, and Bellingshausen Seas, with juveniles showing distinct spatial distributions. Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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The Chinese krill fishing vessel F/V FU XING HAI conducted her first trial of net monitoring cable seabird-strike mitigation measure during the 2023/24 fishing season in accordance with CM 25-03(2023). A set of mitigation devices were deployed to minimize seabird strike from various cables, including net monitoring cables, trawl warps and additional gear securing ropes/wires. The net Read More
Представлено (имя):
Mr Gangzhou Fan (Китай)

Утверждено (имя):
Dr Xianyong Zhao (Китай)

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The Chinese krill fishing vessel F/V SHEN LAN conducted consecutively her second trial on net monitoring cable seabird-strike mitigation measure during the 2023/24 fishing season in accordance with CM 25-03 (2023). Two types of fishing systems were used by the vessel during the current fishing season. The continuous trawling system was used from 7 February to 17 May 2024 in Subareas 48.2 and Read More
Представлено (имя):
Mr Gangzhou Fan (Китай)

Утверждено (имя):
Dr Xianyong Zhao (Китай)

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This report compiles catch and biological data for Antarctic toothfish in CCAMLR Subarea 88.3 to provide a Year 1 baseline of population structure and key parameters. The analysis draws on observer samples and otolith ages from research blocks 883_1 to 883_12 collected from 2016 to 2025, with fishing and sampling conducted from January to April. Pooled length frequencies Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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The CCAMLR-COLTO Tagging Workshop (WS-TAG-2023) recommended to the FSA Working Group (WG-FSA-2023) that Members, with the assistance from the Secretariat, further develop tagging training materials for vessel crew and observers, noting that training materials should include a manual and best-practice video (WS-TAG-2023 paragraphs 2.42 and 2.39). WG-FSA recalled that CapMarine  Read More
Представлено (имя):
Mrs Melanie Williamson (Южная Африка)

Утверждено (имя):
Dr Azwianewi Makhado (Южная Африка)

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Age estimates from otoliths underpin life history inference and stock assessment, yet differences in preparation and reading protocols can introduce random error and systematic disagreement. Exploratory research fishing in Subarea 48.6 has been conducted by Japan, South Africa, and Spain, and Korea joined in the 2024/25 season. Laboratories in this Subarea use different Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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The Antarctic toothfish (Dissostichus mawsoni) is a long-lived apex predator that functions as an important mediator of energy flow between pelagic and benthic ecosystems of the Southern Ocean. Yet, its trophic ecology is not well characterized in the Bellingshausen Sea (Subarea 88.3), due to a region of high environmental variability but limited ecological sampling. Here, Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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This study reports the re-initiation of age determination for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2. Ages were read for 80 otoliths, and 49 of these were also examined histologically (with ogive fits based on n Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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The stocks of Antarctic toothfish, Dissostichus mawsoni were a relatively economically and ecologically important fishery resource in the waters of Antarctic. However, there is not enough data and information to assess the robust stocks and deliberate proper Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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The Antarctic toothfish (Dissostichus mawsoni) is a top predator in the Southern Ocean. Understanding its feeding ecology is essential for ecosystem-based management under CCAMLR. We present the first metabarcoding based description of toothfish diet from the Weddell Sea sector (Subarea 48.6) and compare it with long term datasets from the Ross Sea and Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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The stocks of Antarctic toothfish, Macrouridae were a relatively economically and ecologically important fishery resource in the waters of Antarctic. However, there is not enough data and information to assess the robust stocks and deliberate proper measurements for sustainable utilize, especially relate to diet and feeding strategy which may lead to think about ecosystem- Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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Grenadiers (Macrouridae) are abundant bycatch in the Southern Ocean toothfish fishery and represent an ecologically important prey group for Dissostichus mawsoni. In Subareas 88.1 and 88.3, Macrourus caml (QMC) and M. Read More
Представлено (имя):
Dr Sangdeok Chung (Республика Корея)

Утверждено (имя):
Mr Jeongseok Park (Республика Корея)

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The East Antarctic krill fisheries are spread across two Divisions of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), Division 58.4.1 between 80-150°E and Division 58.4.2 between 30-80°E. Each of these Divisions is further divided into East and West subregions with separate catch limits. In 2019, CCAMLR agreed to a revised krill fishery management Read More
Представлено (имя):
Mr Dale Maschette (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

Публикация:
Maschette, D. et al. 2025. Resource potential and maturity estimates of Euphausia superba in East Antarctica. Front. Mar. Sci., 12. https://doi.org/10.3389/fmars.2025.1448250

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Accurate bycatch species identification is crucial in commercial fisheries, as species vary in vulnerability to fishing pressure. Fishery observer experience also varies, which can form inaccurate commercial fishing datasets and compromise species-level identifications. At the sub-Antarctic Heard Island and McDonald Islands (HIMI),
four grenadier (Macrourus) species represent a high bycatch Read More
Представлено (имя):
Dr Philippe Ziegler (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

Публикация:
Connor, W. et al. 2025. Quantifying distinctions in the otolith shape of morphologically similar Sub-Antarctic grenadier species (Macrourus) to assess fishery observer identifications, Fish. Res., 288: 107448. https://doi.org/10.1016/j.fishres.2025.107448

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The northern Antarctic Peninsula (NAP), one of the fastest warming areas around the Southern Ocean, hosts a large variety of endemic fish and is influenced by complex hydrography. However, the dynamics of fish diversity kept unclear and without monitoring. Monitoring of environmental DNA (eDNA) is a noninvasive, ecofriendly, Read More
Представлено (имя):
Professor Guoping Zhu (Китай)

Утверждено (имя):
Dr Xianyong Zhao (Китай)

Публикация:
Wang et al. 2025. Estuarine, Coastal and Shelf Science, 313: 109076. https://doi.org/10.1016/j.ecss.2024.109076

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The large-scale circulation in the Southern Ocean features eastward flow in jets along fronts in the Antarctic Circumpolar Current (ACC), and westward flow in the Antarctic Slope Current (ASC) and the associated Antarctic Slope Front (ASF). These oceanographic features structure populations of Antarctic krill (Euphausia superba Read More
Представлено (имя):
Professor Guoping Zhu (Китай)

Утверждено (имя):
Dr Xianyong Zhao (Китай)

Публикация:
Zhu, G.P. et al. 2025. Otolith chemistry indicates structuring of the Subantarctic myctophid Electrona carlsbergi in the Antarctic Circumpolar Current and Antarctic Slope Current off the South Shetland Islands. doi.org/10.1016/j.palaeo.2025.113062

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As an important species in the Southern Ocean, the mackerel icefish (Champsocephalus gunnari) is not only a major food source for a wide range of top predators, but also a predominant consumer of a key species, Antarctic krill (Euphausia superba), in the Read More
Представлено (имя):
Professor Guoping Zhu (Китай)

Утверждено (имя):
Dr Xianyong Zhao (Китай)

Публикация:
Zhu, G.P. and Y.F. Peng. 2025. Inferring population structure of mackerel icefish (Champsocephalus gunnari) between South Orkney Islands shelf and South Georgia shelf, Antarctic using otolith ecomorphological analyses, Fish Res, 285: 107367.

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Exploratory fishing for Antarctic toothfish (Dissostichus mawsoni) in East Antarctica (Divisions 58.4.1 and 58.4.2) began in 2003. While preliminary integrated stock assessments have been developed for these Divisions, robust estimates of stock biomass and precautionary catch limits according to CCAMLR decision rules remain to be determined, mainly due to the limitations in Read More
Представлено (имя):
Dr Philippe Ziegler (Австралия)

Утверждено (имя):
Dr Philippe Ziegler (Австралия)

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