Résultats de la recherche
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Reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season
the decision in the 29th CCAMLR Meeting of the Commission (CCAMLR-XXIX, 2010; paragraph 4.62). This ... report described the results during the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch ... (excluding fish released alive) of Dissostichus eleginoides and other by-catch species was 37.8 tonnes in the ... survey area in 70 longline sets. D. eleginoides showed the highest catch of 35.4 tonnes, contributing ...
Meeting Document : WG-SAM-11/06 : Auteur(s): K.Taki, T. Iwami and M. Kiyota (Japan)
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Draft Revised Management Plan for ASPA 149, Cape Shirreff and San Telmo Island, Livingston Island, South Shetland Islands
intersessional contact group formed during the 2004 meeting of the CEP/ATCM. Since a marine area is included in ... provisions of Annex V to the Environmental Protocol and consistent with the Guide to the Preparation of ... of the values of the site and of the measures necessary to protect the site was undertaken. A field ... the draft plan is accurate and up-to-date. The boundaries of the site have been revised in this draft ...
Meeting Document : WG-EMM-04/8 : Auteur(s): Delegations of Chile and USA
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Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
requires a basis for the assessment of resource status, and an algorithm for specifying the levels of ... regulatory mechanisms (e.g. a catch control law) that depends on the results of the assessment. Developing ... and selecting a procedure requires a basis for the simulation testing of procedures, and an ... operational definition of CCAMLR Article II to provide criteria against which to assess procedure performance ...
Meeting Document : SC-CAMLR-VIII/BG/17 : Auteur(s): Delegation of South Africa
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EXTRAPOLATING CONTINUOUS PLANKTON RECORDER DATA THROUGH THE SOUTHERN OCEAN USING BOOSTED REGRESSION TREES
, called BRT (Boosted Regression Trees), to data on the distribution of Oithona similis, a small cyclopoid ... copepod which is abundant through much of near-surface waters of the Southern Ocean. A large dataset (> ... ;19 000 records) of abundances of O. similis were measured during the SCAR Southern Ocean Continuous ... the abundance and the probability of presence of O. similis and the long-term, broad-scale ...
Meeting Document : WG-SAM-08/12 : Auteur(s): M.H. Pinkerton, A.N.H. Smith (New Zealand), B. Raymond, G. Hosie (Australia) and B. Sharp (New Zealand)
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BEACH DEBRIS SURVEY SIGNY ISLAND, SOUTH ORKNEY ISLANDS 1996/97
from being carried out at Cummings Cove. A total of 34 items weighing 1.61 kg were collected at ... Cummings Cove, 18 items weighing 1.42 kg were found at Foca Cove and 6 items with a total weight of 0.68 kg ... were found at Starfish Cove. The total amount of marine debris collected from the three beaches was the ... lowest recorded since the surveys began in 1990, both in terms of weight and number of items. This ...
Meeting Document : CCAMLR-XVI/BG/6 : Auteur(s): Delegation of the United Kingdom
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A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies
using a von Bertalanffy (VB) growth model taking into account response-biased sampling of fish that were ... aged. Subsampling of random lengthfrequency (LF) data used to obtain the samples of fish for ageing ... used length-bin sampling involving a fixed sample size per bin. Estimation of the VB parameters used a ... definition of the likelihood function based on variable probability (VP) sampling due to the prespecified ... . Lamb and R. Williams Department of Environment and Water Resources Australian Antarctic Division 203 ... fi tted using a von Bertalanffy (VB) growth model taking into account response-biased sampling of fi ... sh that were aged. Subsampling of random length- frequency (LF) data used to obtain the samples of fi ... sh for ageing used length-bin sampling involving a fi xed sample size per bin. Estimation of the VB ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Auteur(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams
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Fish and invertebrate by-catch from Australian fisheries for D. eleginoides and C. gunnari in Division 58.5.2
gunnari. This paper presents available by-catch information for the three fisheries including estimates of ... total removals by fishing season and ground, and length composition of rajids and macrourids ... . Preliminary results from a rajid tagging program are also presented. Total removals of by-catch in the trawl ... fisheries are estimated to be very low. From 1996/1997 to 2002/2003, a total of 115 tonnes of by-catch was ...
Meeting Document : WG-FSA-03/73 : Auteur(s): E.M. van Wijk and R. Williams (Australia)
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Beach litter survey - Signy Island, South Orkney Islands 1995/96
other beach surveys were carried out. This was because of logistical difficulties caused by the late ... break out of sea-ice and the redevelopment of the British Antarctic Survey (BAS) research station on ... Signy Island. At Foca Cove, 26 items were found with a combined weight of 1.20 kg, and at Cummings Cove ... almost all debris found on Signy Island originates from accidental or deliberate dumping of rubbish or ...
Meeting Document : CCAMLR-XV/BG/16 : Auteur(s): Delegation of the United Kingdom
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Pilot study on electrophoretic variation and stock structure in the mackerel icefish, Champsocephalus gunnari, South Georgia waters
Abstract: The use of allozymes as a tool in stock structure analysis was examined in the ... commercially-exploited mackerel icefish, Champsocephalus gunnari, together with a preliminary assessment of ... stock separation among samples in South Georgia waters. Four samples (116 individuals) of icefish were ... . Clearly resolved enzyme phenotypes were obtained at 18 loci, of which 7 exhibited polymorphism at the 0.95 ...
Meeting Document : WG-FSA-90/10 : Auteur(s): G.R. Carvalho and D.P. Lloyd-Evans (United Kingdom)
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Towards a strategic framework for assessing uncertainty in ecosystem dynamics models: objectives are sensitive too
simulations of krill, its predators and fishery. It has been used to provide advice on the spatial allocation ... of the precautionary catch limit for krill. Foosa might therefore be a suitable simulation platform ... has 50 categories of input parameter and the four parameterisations used to provide spatial allocation ... advice each required values for 2,311 distinct inputs. In the absence of guidance about management ...
Meeting Document : WG-EMM-12/20 Rev. 1 : Auteur(s): S. Hill and J. Matthews (United Kingdom)