Resultados de la búsqueda
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A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998
population. Unlike the previous 3 years, the Age 2 cohort in 1998 is very weak and is expected to contribute ... little to the biomass in subsequent years. If recruitment to Age 2 in 1999 is also weak then the fishery ... Abstract: A random stratified trawl survey of Mackerel icefish in 2 populations (Plateau and ... Shell Bank) in the vicinity of Heard Island enabled a revised estimate of yield for the coming 2 seasons ...
Meeting Document : WG-FSA-98/54 : Autor(es): A. Constable and D. Williams (Australia)
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Antarctic sea ice losses drive gains in benthic carbon drawdown
Peninsula in the last few years has exposed new open water, allowing large blooms of phytoplankton to ... flourish in the newly exposed coastal areas. This new productivity has important consequences as the ... phytoplankton die and sink to the sea-bed where the carbon is sequestered for thousands of years. This carbon ... in benthic carbon drawdown Microsoft Word File: sc-xxxiv-bg-34 abstract.docx Approval: Approved ...
Meeting Document : SC-CAMLR-XXXIV/BG/34 : Autor(es): Delegation of the United Kingdom
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Otolith and body size relationships in the mackerel icefish (Champsocephalus gunnari)
Paper Title: Otolith and body size relationships in the mackerel icefish (Champsocephalus gunnari ... analyses of covariance were used to assess variability in model fits between years. Note that due to ... to 4 cm at c. 60 cm) in 1990 and 1997; in other years predictions were very similar and close to To ... commercial fishery around South Georgia. Sampling periods, designated by the year in which the samples were ... OTOLITH AND BODY SIZE RELATIONSHIPS IN THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARD 1. Everson, B ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 117–123 : Autor(es): Everson, I., B. Bendall and A. Murray
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A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011
based data show that 2011 was a year of good recruitment, following two years of low recruitment. Krill ... -based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... . Recent changes in the acoustic methodology and target strength models are the basis for the recalculation ... biomass in the northern Gerlache Strait, an area of just over 1100 km2, exceeded 110 g m-2 which results ...
Meeting Document : WG-EMM-11/26 : Autor(es): A. Cossio, C. Reiss and R. Driscoll (USA)
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Poor breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
adult birds spending longer at sea foraging than in normal years. In most previous seasons birds have ... Island during 1998-99, a season of high chick mortality. One thousand nests perished in the three weeks ... nests compared to previous "good" seasons in which between 1200 and 1800 chicks crèched on the ... ). This season male penguins carried out fewer local trips, and both sexes spent longer at sea than in ...
Meeting Document : WG-EMM-99/25 : Autor(es): L. Irvine, J.R. Clarke and K.R. Kerry (Australia)
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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 ... probability of detection (presence) and relative abundance of adults of this zooplankton species in surface ... ) of adult O. similis between November and March in much of the Southern Ocean. No investigation was ... conditions in a broadly similar way throughout the Southern Ocean. Compared to a compilation of nethaul data ...
Meeting Document : WG-EMM-10/P14 : Autor(es): 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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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 1996 winter and 1996/97 pup-rearing season
entangling materials, with the abundance of string and fishing net reversed from most previous years. In ... proportion of entanglements in synthetic string (41 %) was much greater than in recent years, with fishing ... Georgia for the sixth consecutive winter (1996) and eighth consecutive summer (1996/97) are reported. In ... winter 17 seals were observed entangled, double the number in 1995 and the third highest total so far. As ...
Meeting Document : SC-CAMLR-XVI/BG/06 : Autor(es): Delegation of the United Kingdom
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Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015
Abstract: In 2014, CCAMLR endorsed a TAC of 4410 t of Patagonian toothfish in Division 58.5.2 ... . This report describes the recent fishing and data collection activities in the fishery. The fleet has ... enhance the tagging program that was established in 1998, the fleet has increased tagging rate in this ... Trawl survey, commercial fishing in 2013/14, and archived otoliths from tagged and recaptured fish from ...
Meeting Document : WG-FSA-15/55 : Autor(es): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands, 2006/07
study undertaken at Bird Island, South Georgia in 2006/07. Author(s): Delegation of the United Kingdom ... Title: Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island ...
Meeting Document : SC-CAMLR-XXVI/BG/20 : Autor(es): Delegation of the United Kingdom
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Review of identity and biology of species of the family Macrouridae, from the CCAMLR fishery in the Ross Sea, Antarctica
Abstract: Samples of macrourid rattail bycatch from the toothfish fishery in sub-areas 88.1 & ... ; 88.2 in 2002 were identified by observers and returned to New Zealand for subsequent confirmation of ... males is 12 years and 46 cm TL, for females it was 14 years and 50 cm TL. Author(s): P.M. Marriott and ... Macrouridae, from the CCAMLR fishery in the Ross Sea, Antarctica Approval: Approved ...
Meeting Document : WG-FSA-02/32 : Autor(es): P.M. Marriott and P. McMillan (New Zealand)