Search results
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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 : Author(s): K. Taki and T. Ichii (Japan)
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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 : Author(s): Delegation of the Republic of Korea
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Precautionary management of the Antarctic krill fishery at small spatial scales in the context of regional climate variability: is no data the same as no impact?
Abstract: In this paper, we highlight how environmental variability has led to reduced penguin ... by the krill fishery at specific times or in particular areas might not be considered to be rational ... precautionary reductions in catch at relevant time and space scales in all areas. Moreover, an experimental ... implemented; this means that localised impacts from the fishery remain untested. Changing patterns in the ...
Meeting Document : SC-CAMLR-XXXV/11 : Author(s): Delegation of the United Kingdom
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Zonal structure of zooplankton communities in the Southern Ocean south of Australia: results from a 2150 km continuous plankton recorder transect
Circumpolar Current (SACCF), in addition to the Southern Boundary (SB) of the ACC. From 25 February to 3 March ... were measured at 1-min intervals in conjunction with CPR samples. Additional physical data for the ... combination of zonal differences in water mass structure, phytoplankton regimes, and small scale intra-zonal ... differed from other sectors of the Southern Ocean in that the northern PF, equivalent to the PF in other ...
Meeting Document : WS-BSO-07/P6 : Author(s): Hunt, B.P.V. and G. Hosie
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Models of tag shedding for double tagging as a function of time at liberty and approximate solutions for the single tagging model in CASAL
Abstract: The model of tag shedding implicit in CASAL is that of Kirkwood and Walker (KW) (1984 ... ) and Hillary et al. (2006) to apply the square of the individual tag loss annual rate in CASAL over ... a large sample of recaptures of fish released in the Heard and MacDonald Island (HIMI) (Division ... (GAM) was also fitted and is the most flexible in shape. The estimation method accounts for the fact ...
Meeting Document : WG-SAM-11/12 : Author(s): S.G. Candy (Australia)
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DATA QUALITY ASSESSMENT IN CCAMLR: REQUIREMENTS FOR MINIMUM INTEGRITY TESTING TO ENSURE THAT DATA ARE FIT FOR PURPOSE
confirmation of their validity. In the context of CCAMLR, data may undergo one set of quality testing in order ... important for prioritizing the work of the Secretariat in data quality assessment, and also in ensuring that ... errors and discrepancies are resolved in consultation with data owners/originators and, where possible ... errors in fishery data which originated at the vessel-level, and indicated that some errors were not ...
Meeting Document : WG-SAM-09/05 : Author(s): Secretariat
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Preliminary standardised CPUE analysis of the New Zealand toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
) from the exploratory fishery for Antarctic toothfish Dissostichus mawsoni, which has operated in ... ) analysis reviewed CPUE from the two main vessels involved in the fishery, and reviewed their catch from the ... analysis, variables area, season, length of line, soaktime, latitude and month in season entered the model ... , in order. This model explained 32% of the data variability, but was influenced by exploratory fishing ...
Meeting Document : WG-FSA-02/41 : Author(s): R.G. Blackwell and S.M. Hanchet (New Zealand)
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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 : Author(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
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Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea
, penguins, seals, and fish) in the Scotia Sea. We also investigated the potential to mitigate depletion risk ... for predators by curtailing krill fishing at different points in the 21st century. The projected ... effects of ocean warming on krill biomass were strongest in the northern Scotia Sea, with a ≥ 40% decline ... in the mass of individual krill. Projections also suggest a 25% chance that krill biomass will fall ...
Meeting Document : WG-EMM-18/P02 : Author(s): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters
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COMPARATIVE CHARACTERISTICS OF BASIC BIOLOGICAL PARAMETERS OF TWO TOOTHFISH SPECIES IN HIGH-LATITUDE SEAS OF THE ANTARCTIC
» in the areas of the Ross Sea and the Antarctic continental shelf (statistical subareas 88.1 and ... 58.4.1) outside the exclusive (marine) economic zones of foreign states, in the period from 5 November ... , 2007 till 24 March, 2008. In the paper size characteristics of Antarctic and Patagonian toothfishes ... caught in different areas of the Antarctic shelf were given as well as characteristics of maturity level ...
Meeting Document : WG-FSA-08/12 : Author(s): A.K. Zaytsev (Ukraine)