Résultats de la recherche
-
A method to evaluate selection of Antarctic krill in towed fishing gears
Abstract: The pelagic trawlers involved in the fishery for Antarctic krill (Euphausia superba ... traditionally collected during timely and costly fishing experiments in the field where one design is tested at ... the morphology of the species in quest and the shapes of the relevant mesh types, to predict the size ... selectivity by mathematical modeling. After making modifications with the procedures in FISHSELECT to ...
Meeting Document : WG-EMM-13/34 : Auteur(s): L.A. Krag, B. Herrmann (Denmark), S. Iversen, A. Engås, S. Nordrum and B.A. Krafft (Norway)
-
Inter-annual variability in krill density at South Georgia: 1997–2012
Abstract: Antarctic krill (Euphausia superba) are a key species in Southern Ocean ecosystems ... , maintaining very large numbers of predators, and fluctuations in their abundance can affect the overall ... structure and functioning of the ecosystems. The inter-annual variability in the abundance and biomass of ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ...
Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
-
Comparison of catches for toothfish in 58.4.1, 58.4.2, and 48.6 from vessels with anomalous CPUE
stocks, and uncertainty or bias in the amount of catch from an area must be taken into account in the ... assessment of a stock. In 2013, Korea held a workshop on the anomalous CPUE data reported from some Korean ... vessels in data-poor exploratory fisheries (Delegation of Korea 2013). That paper requested that the data ... use these data regarded as anomalous, along with that from other vessels fishing in the same area and ...
Meeting Document : WG-FSA-13/57 Rev. 1 : Auteur(s): A. Dunn, B.R. Sharp (New Zealand), C. Darby (United Kingdom) and O.R. Godø (Norway)
-
Plan of research program of the Russian Federation in Subarea 48.5
Antarctic which is very similar to the Ross Sea in some respects like shape, bathymetrical profile and ... , fishery in subarea 48.5 is closed based on absent stock assessment. The main objective of the present ... in accordance with CCAMLR decision rules. The program contains several phases and prospected for 5 ... Scientific Committee that data-poor area in the future would need to be consistent with the original research ...
Meeting Document : WG-SAM-15/18 : Auteur(s): Delegation of the Russian Federation
-
A proposal for a standardised survey for Antarctic toothfish in McMurdo Sound
through the annual sea ice in McMurdo Sound to monitor the age composition, diet, maturity, and local ... abundance of Antarctic toothfish. A pilot season was carried out in 2014, where sampling gear and ... methodology for a standardised hook and line survey were trialled in McMurdo Sound. Data collected will be ... mammalian predators in the area. Age composition, physiology, and diet objectives can be met with the ...
Meeting Document : WG-FSA-15/33 : Auteur(s): S.J. Parker, S.M. Hanchet and S. Mormede (New Zealand)
-
Report on exploratory fishing by Australia in Division 58.4.1 during the 2015/16 fishing season
be determined for Divisions 58.4.1 and 58.4.2, and precautionary management arrangements are in place ... as set out in Conservation Measures 41-11 and 41-05. A research plan (WG-FSA-15/47 Rev. 1) was ... in exploratory fishing within these Divisions. This paper reports on the fishing operation, catch ... composition, tagging and biological sampling undertaken by Australia in SSRUs 58.4.1E and 58.4.1G. A total of ...
Meeting Document : WG-SAM-16/35 : Auteur(s): P. Yates, D. Welsford, P. Ziegler, D. Maschette and T. Lamb
-
Adélie penguins as indicators of the state of the sea-ice in Adélie Land
Abstract: In the 2013-14 reproductive season, the 26,000 pairs of Adélie penguins from Pétrel ... the population there, a second complete breeding failure took place in the season 2016-17, leading to ... the deaths of all the chicks of the 28,000 Adélie pairs that bred in this season. Once more sea-ice ... extent was the major cause of failure. Sea-ice conditions in 2016-17 were even more drastic than in 2013 ...
Meeting Document : WG-EMM-17/01 Rev. 1 : Auteur(s): Y. Ropert-Coudert, A. Kato and C. Barbraud
-
Demersal finfish distribution, abundance and their biological characteristics in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020)
after the first survey had been undertaken in 2016. The revised proposal is planned to run from 2018 to ... 2020. Based on the experience gained in the first phase of research and recommendations made by WG-SAM ... -16 and WF-FSA-16, a revised proposal for a random, stratified trawl survey to be undertaken in ... Subareas 48.1 and 48.2 in accordance with CM-24-01 is provided. The objective of this research survey is to ...
Meeting Document : WG-SAM-17/18 : Auteur(s): Delegation of Chile
-
Demersal finfish distribution, abundance and their biological characteristics in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020)
after the first survey had been undertaken in 2016. The revised proposal is planned to run from 2018 to ... 2020. Based on the experience gained in the first phase of research and recommendations made by WG-SAM ... -16 and WF-FSA-16, a revised proposal for a random, stratified trawl survey to be undertaken in ... Subareas 48.1 and 48.2 in accordance with CM-24-01 is provided. The objective of this research survey is to ...
Meeting Document : WG-FSA-17/28 : Auteur(s): Delegation of Chile
-
Long-term change in zooplankton communities of the Southern Ocean between 1997 and 2018: implications for fisheries and ecosystems
Abstract: We provide an analysis of zooplankton distributions in the circumpolar Southern Ocean ... -CPR) between 1991 and 2018. We analysed SO-CPR measurements in relation to satellite and oceanographic ... groups: Copepoda, Euphausiidae (numerically dominated in SO-CPR data by Thysanoessa macrura ... –0.83% per year averaged across the Southern Ocean, and with much higher rates of increase in some ...
Meeting Document : WG-EMM-2019/66 : Auteur(s): M.H. Pinkerton, M. Decima, J. Kitchener, K. Takahashi, K. Robinson, R. Stewart and G.W. Hosie