Search results
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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)
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WG-FSA-93
/12 Rev. 1 Submission of plans for conducting finfish surveys in the Convention Area Secretariat WG ... Potter Cove, South Shetland Islands, since the end of the fishery in the area E.R. Marschoff and E.R ... . Barrera-Oro (Argentina) WG-FSA-93/14 The early life history and the onset of scale formation in the ... /17 On the status of mesopelagic fish (myctophidae) in the Southern Ocean ecosystem A.N. Kozlov ...
Meeting
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Selecting sampling frequency for measuring diving behaviour
% increase in mean maximum dive depth, a 29% increase in mean dive duration and a 12% increase in duration ... in interval from 5s to 15s resulted in 20% of dives being unrecognised, a 38% increase in mean maximum dive ... depth, a 29% increase in mean dive duration and a 12% increase in duration of surface interval ...
Meeting Document : WG-CEMP-93/14 : Author(s): I.L. Boyd (United Kingdom)
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Report on a tuna long-lining fishing voyage aboard Southern Venture to observe seabird by-catch problems
birds survived hooking in this study because of the lighter gear and quicker recovery of the long-line ... % of bait-takes resulted in a bird being hooked. The mollymawk was hooked at night near full moon, but ... intensively on the waste baits (41% of those cast) thrown overboard during hauling-in. More birds followed in ... Abstract: Incidental captures of seabirds, and the behaviour of seabirds around the fishing gear ...
Meeting Document : WG-IMALF-94/10 : Author(s): M.J. Imber (New Zealand)
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Using stationary acoustic platforms to assess precision and accuracy of acoustical krill surveys
the South Orkney Islands since 2014, and in this report some of these data have been analysed in order ... Abstract: The current CCAMLR protocol specifies daytime acoustic sampling in order to avoid ... issues of krill migrating too close to the surface to be acoustically detected, as well as potential ... issues of diel changes in acoustic scattering strengths. However, due to logistic constraints, acoustic ...
Meeting Document : WG-EMM-2019/32 : Author(s): T. Klevjer, G. Skaret and B.A. Krafft