Resultados de la búsqueda
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KRILL FISHERY BEHAVIOUR IN THE SOUTHWEST ATLANTIC
behaviour of krill fishery. Analysis of travel distance in relation to catch level revealed a pattern that ... to year variability in the probabilities of operating within a local range after a number of tows. In ... only 0.1, but in the 2004/05 season it was 0.7. Fishery behaviour differentiates between market type ... /operational requirements in an area. These kinds of analysis show the importance of good year-round data from ...
Meeting Document : WG-EMM-08/39 : Autor(es): S. Kawaguchi (Australia)
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PROPOSAL FOR REVISING CONSERVATION MEASURES 24-02 (2005) AND 41-03 (2006) IN RELATION TO SUBAREA 48.4
Abstract: The provisions for fishing season and mitigation measures in Conservation Measure 24-02 ... (2005) regulating fishing in Subarea 48.4 do not currently conform to the IMAF Risk Assessment advice ... given in CCAMLR-XXIV/BG/26. The UK proposes text that should be added to CM 24-02 to bring the measure ... conducted in accordance with CM 24-02. A small change, to recognise 48.4, is required to the first paragraph ...
Meeting Document : WG-FSA-08/45 : Autor(es): Delegation of the United Kingdom
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By-catch in the longline fishery along the shelf slope of Kerguelen (Division 58.5.1) during the 1994/95 and 1995/96 cruises
Patagonian toothfish Dissostichus eleginoides in approximately 500m depth along the shelf slope in the west ... taken in the by-catch was low (less than 0.75%) and does not represent a problem at the present level of ... fishing. The results indicate that longlining therefore is a highly target-specific method of fishing in ... the patagonian toothfish fishery. Author(s): Capdeville, D., Duhamel, G. Title: By-catch in the ...
Meeting Document : WG-FSA-96/11 : Autor(es): Capdeville, D., Duhamel, G.
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CPUES and body length of Antarctic krill during 1993/94 season in the fishing grounds around the South Shetland Islands
Abstract: This paper summarizes Japanese krill catch data during austral summer in 1993/94 season ... . Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... summer (early February- early March) in the north of Livingston Island, and April at the west of Elephant ... Island. Krill with a modal length of 41-45mm were dominant in catches, almost same as the previous season ...
Meeting Document : WG-EMM-95/51 : Autor(es): Kawaguchi, S., Ichii, T., Naganobu, M.
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Uncertainty in standard sphere calibrations
Abstract: In fisheries acoustics, the standard sphere method of echosounder calibration is most ... commonly used (Johannesson and Mitson, 1983; Simmonds et al., 1984). To investigate the uncertainty in the ... method, a series of experiments were conducted in a deep tank (Demer and Hewitt, 1993). Results indicated ... that variations in pulse length (0.1 and 0.3 ms), water temperature (0.5 to 5.5 C), and choice of ...
Meeting Document : WG-EMM-95/70 : Autor(es): Demer, D.A., Hewitt, R.P.
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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 ... the study period, on eight cruises in the Ross, southern Scotia, and Weddell Seas and Drake Passage ... Antarctic, incidence of plastic in the diet decreased with increased latitude. These results indicate either ... that the Antarctic Convergence blocks plastic debris, which is commonly found a t the sea surface in ...
Meeting Document : SC-CAMLR-X/BG/18 : Autor(es): Delegation of USA
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Results of reading tests of TOP otolith sections and time schedule of reading for Dissostichus otoliths caught in regions of data-poor fisheries
. by CASAL model. However, the age estimations using the otoliths have been scarcely progressed in ... using images of thin-sectioned TOP otoliths in December 2012 and May 2013. The coefficient of variation ... Ltd, in New Zealand). He will continue to make the periodical reading test for TOP otolith sections ... CCAMLR Secretariat in this February. We will make image processing for these references and also conduct ...
Meeting Document : WG-SAM-13/19 : Autor(es): K. Taki and T. Ichii (Japan)
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Methodology for automated spatial sea ice summaries in the Southern Ocean
performance in the Southern Ocean. Sea ice can limit access to fishing grounds, for both commercial fishing ... access are in use by CCAMLR. We develop a method to spatially and temporally summarise satellite-derived ... sea ice concentration data in the Southern Ocean, and relate it to data on commercial fishing vessel ... dynamics of sea ice in a target location for a specified period, and a temporal view is used to ...
Meeting Document : WG-FSA-14/54 : Autor(es): S.J. Parker, S.D. Hoyle, J.M. Fenaughty and A. Kohout (New Zealand)
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Metabarcoding analysis of zooplankton collected from Division 58.4.1 in 2014/15 using NGS platform
environmental changes in the Antarctic Ocean ecosystem. We here applied the metabarcoding method to analyze the ... biodiversity of zooplankton in the Indian Ocean of Antarctica, Division 58.4.1 in 2014/15. Compared with the ... “unknown” OTUs, we were able to know that metabarcoding strategy can be possible in the zooplankton survey ... . In both fractions, copepods occupied the highest proportions and Calanoides acutus was the major ...
Meeting Document : WG-EMM-16/33 : Autor(es): Delegation of the Republic of Korea
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Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula
Antarctica. In contrast, less is known about the Type A killer whales that are more typical in appearance to ... killer whales sighted in other parts of the world. Sightings of Type A around the AP have been ... increasing in recent years, including observations of predation on a number of whale and pinniped species ... whales and estimate their abundance trends in the coastal waters around the AP. Whales tagged off the ...
Meeting Document : WG-EMM-17/49 : Autor(es): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman