Search results
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Proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea
Abstract: The exploratory fishery for Dissostichus spp. has now been operating for 14 years ... in Subarea 88.1 and for nine years in Subarea 88.2. Associated research has led to an assessment ... operations, different vessels catch different length classes in different locations and in different years ... The exploratory fishery for Dissostichus spp. has now been operating for 14 years in Subarea 88.1 ...
Meeting Document : WG-SAM-11/16 : Author(s): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)
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Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees
of the cyclopoid copepod Oithona similis in the Southern Ocean. Nearly 20 000 samples from the Southern Ocean ... migration by adults of this species north of 651S was found, with surface abundances 20% higher at night ... Oithona similis in the Southern Ocean. Nearly 20 000 samples from the Southern Ocean Continuous Plankton ... abundances 20% higher at night than during the day. There was no evidence of diel migration south of 651S ...
Meeting Document : WG-EMM-10/P14 : Author(s): M.H. Pinkerton, A.N.H. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve
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Hydrographic conditions around Elephant Island during austral spring 1994
in previous years in the Elephant Island Plateau Region. Since the data base available to the author is very ... much limited to answer questions on year-to-year changes, or even on climatic time scales ... , it is recommended to do a cooperative analysis of data sampled throughout the years in the Elephant Island Plateau ... in previous years in the Elephant Island Plateau Region. Since the data base available to the author is very ...
Meeting Document : WG-EMM-95/16 : Author(s): Stein, M.
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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
during austral summer 1991/92 and 1992/93 are described and compared with information from previous years ... distributions and maturity stage composition reflected relatively good year class success from the 1990/91 ... spawning season but poor success from 1991/92. Year class success from these and other years appears ... summer 1991/92 and 1992/93 are described and compared with information from previous years. The general ...
Meeting Document : WG-KRILL-93/08 : Author(s): V. Loeb (USA) and V. Siegel (Germany)
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Age and growth of Antarctic Euphausiacea (Crustacea) under natural conditions
Peninsula and the southeastern Weddell Sea. Life spans range from two years for Euphausia frigida to six ... years for the krill Euphausia superba. Growth in length and weight was calculated by non-linear ... for the species Euphausia triacantha, and a three-year life span proposed. Male Euphausia crystallorophias have ... and the southeastern Weddell Sea. Life spans range from two years for Euphausia frigida to six years for the krill ...
Meeting Document : SC-CAMLR-VI/BG/24 : Author(s): V. Siegel (FRG)
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Estimating toothfish biomass in Subarea 48.3 using local depletions
as a means of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas ... of 12’ by 12’ where there had been forty or more hauls in any particular year. There were 62 individual ... over the four years and multiplying by the total fishable area in Subarea 48.3 we arrived ... of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas of 12’ by 12 ...
Meeting Document : WG-FSA-SAM-04/18 : Author(s): Pearce, J., Agnew, D.
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Documentation for the CCAMLR survey database and length-density analysis
Abstract: Over the past two years, the CCAMLR Data Centre has undertaken a major overhaul ... . While appropriate in earlier years, this procedure constricted the type of survey data that could ... Over the past two years, the CCAMLR Data Centre has undertaken a major overhaul of the research ... in earlier years, this procedure constricted the type of survey data that could be stored in the CCAMLR ...
Meeting Document : WG-FSA-00/11 : Author(s): Secretariat
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An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths
read the sections similarly, with 84.7% of the estimates falling within two years or less of each other ... differences in the criteria used to interpret the first few years of age, possibly in identification ... read the sections similarly, with 84.7% of the estimates falling within two years or less of each other ... differences in the criteria used to interpret the first few years of age, possibly in identification ...
Meeting Document : WG-FSA-99/56 : Author(s): J. Ashford (United Kingdom) and P. Horn (New Zealand)
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A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region
y-1 and constant across age and sex. In 2018, the independent review of the Ross Sea region D. mawsoni stock ... age and sex. In 2018, the independent review of the Ross Sea region D. mawsoni stock assessment ...
Meeting Document : WG-SAM-2019/04 : Author(s): B. Moore, S. Mormede, S. Parker and A. Dunn
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Trophic niche of the Antarctic toothfish caught in SSRU 88.3 as inferred from fatty acids and stable isotopes
Research Units (SSRUs) 88.3 (the Pacific Ocean sector, POS) in austral summer during 2016–2018, making ... Research Units (SSRUs) 88.3 (the Pacific Ocean sector, POS) in austral summer during 2016–2018 ...
Meeting Document : WG-FSA-18/21 : Author(s): C.-K. Kang, S.-G. Choi, H.Y. Kang, Y.-J. Lee, S. Chung and D.H. An