Résultats de la recherche
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Standing stock, biology, diet and spatial distribution of demersal finfish from the 2003 US AMLR bottom trawl survey of the South Shetland Islands (Subarea 48.1)
bottom trawl surveys of the South Shetland Islands (Subarea 48.1) during the 1998, 2001, and 2003 austral ... demersal finfish species have remained relatively consistent across all surveys. Shelf regions of ... important feeding areas lie to the west and north of Elephant Island and to the north of King George Island ... greater than 200 meters. Estimates of total stock biomass from these surveys were computed for eight ...
Meeting Document : WG-FSA-03/38 : Auteur(s): C.D. Jones (USA), K.-H. Kock, (Germany), J. Ashford, A. DeVries, K. Dietrich (USA), S. Hanchet (New Zealand), T. Near, T. Turk (USA) and S. Wilhelms (Germany)
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The incidence of plastic in the diets of Antarctic seabirds
Abstract: We investigated the diets of seabirds at sea in the Antarctic from 1976 to 1988. During ... , we collected or pumped the stomachs of 1,223 seabirds of 23 species. The stomach contents of species ... live prey. Among species that feed a t the surface, most of which eat both live and dead organisms ... , incidence of plastic was highest among the smaller ones and those that are omnivores, or feed on zooplankton ...
Meeting Document : SC-CAMLR-X/BG/18 : Auteur(s): Delegation of USA
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Maximum entropy reconstruction of stock distribution and inference of stock density from line-transect acoustic survey data
distribution from acoustic line-transect data. MaxEnt is founded on the bedrock of probability theory and ... allows the most efficient possible use of known data in the inference process. The method takes explicit ... account of spatial correlation in the observed data and seeks to reconstruct a distribution of density ... maximized. The method is iterative and uses the Bayesian approach of evaluating the posterior probability of ...
Meeting Document : WG-EMM-02/35 : Auteur(s): A.S. Brierley, S.F. Gull and M.H. Wafy (United Kingdom)
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An analysis of temporal variability in abundance, diversity and growth rates in the coastal ichthyoplankton assemblage of South Georgia (sub-Antarctic)
fish diversity and abundance. Larvae of twenty two species, representing nine families, were identified ... significantly correlated with local SST or primary productivity. Estimates of larval growth are provided for 5 ... , representing a protracted spawning season, were observed to grow at different rates and this may be related to ... ): M. Belchier and J. Lawson (United Kingdom) Title: An analysis of temporal variability in abundance ...
Meeting Document : WG-FSA-12/33 : Auteur(s): M. Belchier and J. Lawson (United Kingdom)
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Progress report on the joint research for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand and notification of research in 2018/19
salinity were measured at 6 locations during the survey in Subarea 88.3. Notification of research for the ... –883_5. Due to extreme ice conditions covering the southern part of 88.3, the Janas (NZL) was not able to ... conduct its part of the survey. The total catch of D. mawsoni was 38,856 kg comprised of 1,380 individuals ... in blocks 883_3 and 883_4 showed similar values of 0.1369 and 0.1466 kg/hook, research block 883_5 ...
Meeting Document : WG-SAM-18/05 : Auteur(s): Delegations of the Republic of Korea and New Zealand
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Notes on the availability of three important finfish species in offshore waters of the lower South Shetland Islands (Subarea 48.1)
Abstract: In 1998, an offshore scientific trawl survey of bottom fish sampling within the 50-500 ... m isobath of the lower South Shetlands Islands (King George Island to Low Island) was conducted. In ... addition, the abundance of two commercially important Antarctic fish, Notothenia rossii and Gobionotothen ... lower South Shetlands Islands from inshore sites mainly at Potter Cove from 1983 to 1999. These studies ...
Meeting Document : WG-FSA-99/31 : Auteur(s): C.D. Jones (USA), E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
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The random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters of Heard Island (Division 58.5.2) for 2016
Abstract: The annual random stratified trawl survey (RSTS) of 2016 at HIMI was conducted during ... April, with the completion of 163 stations. The survey was conducted for the second year on the FV Atlas ... Cove. Sampling protocols such as the design and the duration of the hauls were similar to last year’s ... survey, but with a new set of randomly selected station points. The calculated density of D. eleginoides ...
Meeting Document : WG-FSA-16/23 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford
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Observations of demersal fish, benthic communities and seafloor composition of the Southern Ocean Atlantic sector from the ICEFISH 2004 cruise
Abstract: A multi-disciplinary research cruise in the Atlantic sector of the Southern Ocean was ... conducted during the 2004 austral winter as part of the International Collaborative Expedition to collect ... included demersal finfish, benthic invertebrates, and information of seafloor composition. The objectives ... of the cruise included Antarctic fish and invertebrate biochemical, molecular and physiological ...
Meeting Document : WG-FSA-04/61 : Auteur(s): C.D. Jones, S.J. Lockhart and D.F. Doolittle (USA)
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Streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources (SC-CAMLR)
Abstract: In recent years, the Scientific Committee has been dealing with a great diversity of ... important issues for which the Commission was expecting advice. The current structure of the Working Groups ... meetings and a large diversity of important issues. A number of important issues are not being addressed ... at present. In our view, this stems from constraints on the way SC-CAMLR does work. In this paper ...
Meeting Document : WG-EMM-15/59 : Auteur(s): G. Watters (USA), A. Constable and D. Welsford (Australia)
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ASSESSMENT OF PATAGONIAN TOOTHFISH POPULATION IN THE NORTH OF SUBAREA 48.4 USING DATA FROM A FOUR-YEAR TAGGING EXPERIMENT
some years; 6. Analysis of tagging and biometric data suggests that D. eleginoides at 48.4 have similar ... Abstract: 1. The bycatch TAC of 12 tonnes of macrourids was reached in 2008/09 triggering the ... early closure of the fishery with only 58.9 t of the 75 t TAC of D. eleginoides taken; 2. The target ... tagging rate of 5 fish per tonne was exceeded by both vessels, with 344 D. eleginoides tagged and released ...
Meeting Document : WG-FSA-09/17 : Auteur(s): J. Roberts and D.J. Agnew (United Kingdom)