Search results
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The UK fish stock assessment survey bottom trawl for South Georgia
Abstract: Criteria for the choice of a trawl for demersal fish surveys are discussed. Details of ... the construction and performance of the 120 Bolt Rope Bottom Trawl used during the recent fish stock ... trawl during future surveys in the area in order to improve continuity in the survey series. The design ... of the trawl is similar to the Polish P32/36 survey trawl used on the Profesor Siedlecki surveys ...
Meeting Document : WG-FSA-91/16 : Author(s): G. Parkes (United Kingdom)
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Beach debris survey, Signy Island, South Orkney Islands, 2003/04
recovered (a decrease of 61% and 57.56% since 2002/03 respectively). There was a decrease in the number of ... and size categories. A total of 21 items weighing 11.59kg were collected. The number of items found ... was lower than the total found during the previous season, as was the total mass of the waste ... reversing the rise in packaging bands experienced over the previous two seasons and marking a return to what ...
Meeting Document : SC-CAMLR-XXIII/BG/15 : Author(s): Delegation of the United Kingdom
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Research standards for exploratory fisheries
exploratory fishery in the Ross Sea leading to an assessment of D. mawsoni and the fishery for D. eleginoides ... in the northern South Sandwich Islands are used as examples of what can be achieved using exploratory ... Abstract: The potential for data poor exploratory fisheries in the CAMLR Convention area to ... recommendations are made for optimizing this potential. The types of data that have led to successful assessments ...
Meeting Document : WG-SAM-11/15 Rev. 1 : Author(s): D. Kinzey (USA)
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Satellite tracking of black-browed and light-mantled sooty albatrosses from Heard Island and potential interactions with fisheries
foraged on the shelf break within 150 km of Heard Island, and focused 75% of their foraging time in waters ... a further 5% went beyond either EEZ into the high seas north and east of Heard Island. In contrast ... Abstract: The purpose of this document is to inform CCAMLR of the results of a satellite tracking ... ). This was the first time the movements of either species from the island had been studied. Ten black ...
Meeting Document : WG-FSA-05/14 : Author(s): K. Lawton, R. Kirkwood and G. Robertson (Australia)
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Proposal for a CCAMLR Science Special Volume
. However, in recent years there has been a decrease in the number of papers submitted to CCAMLR Science for ... recommendation made by the Scientific Committee, and that the creation of marine protected areas (MPA) in the ... Area of the Convention have become one of the main issues currently debated in CCAMLR, Argentina and ... Abstract: CCAMLR Science provides a valuable mechanism for promoting the science undertaken in ...
Meeting Document : SC-CAMLR-XXXVI/16 : Author(s): Delegations of Argentina and Chile
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Age validation of Patagonian toothfish (Dissostichus eleginoides) from Heard and Macquarie Islands
. eleginoides in the Heard Island and Macquarie Islands fisheries has included injection of most fish with ... selected for analysis. Strontium (Sr) marks were detected in 139 of the 142 otoliths examined. Using the ... number of observed increments after the mark in relation to the time-at-liberty between tagging and ... counting presumed growth increments on the sectioned face of sagittal otoliths. While there is a general ...
Meeting Document : WG-FSA-05/60 : Author(s): K. Krusic-Golub and R. Williams (Australia)
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Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability
variability in growth rates of highly abundant zooplankton is critical to predict the impact of climate change ... apart to estimate growth rates of one the most euphausiids in the Southern Ocean, Thysanoessa macrura ... of T. macrura may increase in regions exhibiting warming trends, such as the Antarctic Peninsula ... growth. Growth rates of T. macrura varied between years and water masses, ranging from-0.037 mm day-1 in ...
Meeting Document : WG-EMM-13/39 : Author(s): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)
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Fishing equipment, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2003/04
number of debris items collected. An increase in the amount of debris and fishing items associated with ... effort associated with greater field-work intensity. Hooks were typical of those used in the toothfish ... fishery around South Georgia and the Falklands and evidence of the discarding of longline hooks in offal ... such annual report. As in most previous years, more items of fishing gear (mostly longlining gear) were ...
Meeting Document : SC-CAMLR-XXIII/BG/16 : Author(s): Delegation of the United Kingdom
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Maximum entropy reconstruction of stock distribution and inference of stock density from line-transect acoustic survey data
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 ... method is computationally demanding but appears to work well, even in cases when the distribution of ... distribution from acoustic line-transect data. MaxEnt is founded on the bedrock of probability theory and ...
Meeting Document : WG-EMM-02/35 : Author(s): A.S. Brierley, S.F. Gull and M.H. Wafy (United Kingdom)
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New data on Antarctic toothfish and some others by-catch fishes fecundity with gonads histological pictures from Ross Sea region and data on Patagonian toothfish from the Argentina Sea
Abstract: Results of samples’ processing fixed from Sub-area 88.1 in the 2003-2004 season aboard ... f/v «Yantar» operating in the Exploratory Fishery were presented. According to the results of ... it was ascertained that intermittent oogenesis type and synchronic development of the nearest ... the predominant part of pre-spawning individuals was concentrated over isolated sea mountains to the ...
Meeting Document : WG-FSA-05/28 : Author(s): V.G. Prutko and L.A. Lisovenko (Russia)