Resultados de la búsqueda
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Incorporation of science advice from the CCAMLR working groups and Scientific Committee into the krill assessment model for Subarea 48.1
Abstract: The integrated assessment for Antarctic krill (Euphausia superba) in CCAMLR Subarea ... 48.1 has been under development since 2010. Progress on the model during this period was reported in a ... series of papers and presentations to WG-EMM, WG-FSA and WG-SAM from 2011 to 2016. The full text of the ... recommendations extracted from the CCAMLR Scientific Committee reports regarding the integrated krill assessment ...
Meeting Document : WG-SAM-17/32 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss
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Inclusion of fisheries notifications in the Database of Upcoming Expeditions to the Southern Ocean
Abstract: Many international programs collect information on upcoming activities in the Southern ... Ocean, relevant to their communities. To support the sharing of this information, the Southern Ocean ... Observing System (SOOS) has developed the Database of Upcoming Expeditions to the Southern Ocean, DueSouth ... (www.soos.aq). Developed by the Australian Antarctic Data Centre, DueSouth is an open-access resource for the ...
Meeting Document : CCAMLR-38/BG/26 : Autor(es): Submitted by SCOR
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Some properties of diagnostics of GLMM model tuning for standardising CPUE indices in the Area 48 using the CCAMLR fishery statistics database
Abstract: The data of krill fishery in Subarea 48 for 1986 – 2008 presented to CAMLR database by ... haul-by-haul data were used. Standardizing CPUE was performed by applying the generalized linear model ... with random effects (GLMM). The analysis of diagnostics of GLMM tuning indicated that the model with ... Tweedie’s distribution satisfactorily describes the set of data collected in Subareas 48.1, 48.2 and 48.3 ...
Meeting Document : WG-EMM-11/44 : Autor(es): P. Gasyukov and S. Kasatkina (Russia)
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The structure and spatial distribution of Antarctic krill aggregations from acoustic observation in the South Georgia area
significant distinctions in spatial distribution patterns of krill in the northwestern and the northeastern ... parts of South Georgia area. The boundary between two areas is located at about 37°30/ W. It is shown ... that in winter months in the northwestern part where foraging areas of dependent predators are located ... is non-attractive to fishery. The observed grounds with krill density exceeding the threshold value ...
Meeting Document : WG-EMM-04/66 Rev. 1 : Autor(es): S.M. Kasatkina (Russia)
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Shedding new light on the life cycle of mackerel icefish in the Southern Ocean
Abstract: Mackerel icefish (Champsocephalus gunnari) has a widespread distribution in the ... Atlantic and Indian Ocean sectors of the low-Antarctic region. Biological characteristics differ ... considerably between populations in the southern Scotia Arc and those living further to the north. Fish living ... in the north mature one year earlier than in the south. They have a much shorter life span and die ...
Meeting Document : WG-EMM-03/4 : Autor(es): K.-H. Kock (Germany) and I. Everson (United Kingdom)
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A revision of yield and catch controls for managing the mackerel icefish (Champsocephalus gunnari) fishery in the vicinity of Heard Island and McDonald Islands
Abstract: A recent 2000 survey of mackerel icefish in the vicinity of Heard Island enabled a ... revised estimate of yield for the coming 2 seasons. While the biomass of icefish appears lower than in ... previous years, it is dominated by a strong age 2 year class. Estimates of yield for the Heard Island ... Plateau population using the short-term assessment are 1150 tonnes for 2000/01 and 1000 tonnes for 2001/02 ...
Meeting Document : WG-FSA-00/41 : Autor(es): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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STANDING STOCK, SPATIAL DISTRIBUTION, AND BIOLOGICAL FEATURES OF DEMERSAL FINFISH FROM THE 2009 U.S. AMLR BOTTOM TRAWL SURVEY OF THE SOUTH ORKNEY ISLANDS (SUBAREA 48.2)
48.2) demersal finfish was completed during February-March, 2009 during the U.S. AMLR Program field ... season. Detailed information is presented for several of the most abundant demersal finfish species ... biomass within the 500 m isobath of South Orkney Islands. Spatial distribution of standardized finfish ... densities demonstrated substantial contrast across the shelf area, with most finfish biomass occurring on ...
Meeting Document : WG-FSA-09/19 : Autor(es): C.D. Jones (USA) and K.-H. Kock (Germany)
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On the status of mesopelagic fish (myctophidae) in the Southern Ocean ecosystem
Abstract: Analysis and synthesis of results of Russian and foreign research into the trophic ... relationships of myctophids demonstrate that this group of mesopelagic fish plays a significant role in the ... community of marine organisms of the Southern Ocean. The trophic status of myctophids has been determined ... determines their high abundance and biomass. Thus, according to a preliminary estimate the yearly consumption ...
Meeting Document : WG-FSA-93/17 : Autor(es): A.N. Kozlov (Russia)
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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Abstract: Acoustic surveys carried out in summer and autumn periods of 1987-1989 estimated the ... biomass of myctophids in the Atlantic sector of the Southern Ocean over the region between 48° and 56°S ... and from 8° to 48W at about 1.7 mill.t. Over the larger part of the surveyed area the fish were sparse ... over only restricted areas. The bulk of the biomass has been reported from the region of the Antarctic ...
Meeting Document : WG-FSA-90/19 : Autor(es): A.A. Filin, K.V. Gorchinsky and V.M. Kiseleva (USSR)
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Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)
Abstract: Assessments of long-term sustainable yield using the Generalised Yield Model and the ... setting of total allowable catches (TAC) for Patagonian Toothfish, Dissostichus eleginoides, for the Heard ... surveys (RSTS) and from targeted commercial fishing operations via an observer program. The current RSTS ... for a range of levels of confidence. The results indicate that while the current and previous survey ...
Meeting Document : WG-FSA-SAM-04/19 : Autor(es): Candy, S., Constable, A.J., Davies, C.R.