Resultados de la búsqueda
-
Aerobic dive limit: how often does it occur in nature?
constraint in their everyday behaviors. An important component of the physiological capability of any diving ... animal is it’s aerobic dive limit (ADL). The ADL has only been measured in a few species. The goal of ... within the cADL. In contrast, many individuals of both sea lion species exceeded the cADL, some by ... with the dive pattern of individual animals. In both Antarctic Fur Seals and Australian sea lions ...
Meeting Document : WG-EMM-00/48 : Autor(es): D.P. Costa, N.J. Gales and M.E. Goebel (USA)
-
Observer coverage in CCAMLR krill fisheries from 2011 to 2015
Abstract: The issue of observer coverage in krill fisheries has been the subject of extensive ... past five years comparing the number of days of fishing conducted by vessels in the krill fleet, with ... discussion at the Commission for a number of years, as the krill fishery is the only CCAMLR fishery that does ... not require 100% observer coverage. The Secretariat analysed the level of observer coverage for the ...
Meeting Document : WG-EMM-16/11 : Autor(es): CCAMLR Secretariat
-
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 ... Abstract: The level of data quality assessment and ‘certification’ as ‘fit for purpose’ depends ... users of CCAMLR data are fully aware of the integrity procedures that have been applied to the data ...
Meeting Document : WG-SAM-09/05 : Autor(es): Secretariat
-
Longline sink rates on a bottom autoline vessel in New Zealand: draft
the middle of an unweighted longline of this design sinks to 10m in a mean time of 63.0 seconds (n ... vessel F.V. San Aotea in New Zealand. The objective of the project was to determine line sink rate, and ... as would be used in normal fishing operations to test the effectiveness of weighting the longline as ... = 11, c.v. 16.7%), compared with the start of the longline which takes a mean time 31.1 seconds (n = 11 ...
Meeting Document : WG-FSA-98/51 : Autor(es): N.W. McL. Smith (New Zealand)
-
Fish and invertebrate by-catch from Australian fisheries for D. eleginoides and C. gunnari in Division 58.5.2
. Preliminary results from a rajid tagging program are also presented. Total removals of by-catch in the trawl ... represent less than 1% and 2% respectively, of the total catch weight (target and non-target species) in ... -catch was caught representing 8% of the total catch. The length range of macrourids and rajids caught in ... slow growing and/or that the trauma of capture results in at least one year of very slow growth. Growth ...
Meeting Document : WG-FSA-03/73 : Autor(es): E.M. van Wijk and R. Williams (Australia)
-
Towards a strategic framework for assessing uncertainty in ecosystem dynamics models: objectives are sensitive too
advice each required values for 2,311 distinct inputs. In the absence of guidance about management ... reference points, the modellers provided advice in terms of 41 illustrative reference points intended to ... candidate feedback management approaches for the Antarctic krill fishery in the southern Drake Passage and ... simulations of krill, its predators and fishery. It has been used to provide advice on the spatial allocation ...
Meeting Document : WG-EMM-12/20 Rev. 1 : Autor(es): S. Hill and J. Matthews (United Kingdom)
-
Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
biomass in the WCB and even total commercial catch in subarea 48.3 is frequently less than 10% of the ... mean krill density was significantly correlated with the top 7% of the maximum krill densities observed ... . Hence, only the densest krill swarms detected in any one year drove the mean krill density estimates for ... the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ...
Meeting Document : WG-EMM-14/P04 : Autor(es): S. Fielding, J. Watkins, P. Trathan et al.
-
Data on krill, Euphausia superba Dana, consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
fishes as its main consumers in the above areas. According to the data of trawlings in the depth range of ... Abstract: Basing on the materials of complex study of the Kosmonavtov and Sodruzhestva Seas ... 100-500 m in the area between 30 and 80°E, the total fish stock was evaluated to be 551.300 t ... E.superba consumption not only for the region of the Kosmonavtov and Sodruzhestva Seas as a whole, but at ...
Meeting Document : SC-CAMLR-X/BG/11 : Autor(es): Delegation of USSR
-
Statistical problems in krill stock hydroacoustic assessments
accuracy of target-strength measurements. In the case of statistical methods, there are no clear guidelines ... results. In the case of target-strength accuracy, even if the present values were very accurate, the issue ... of interest would seem to be not the absolute amount of biomass present in an area, but rather how it ... Abstract: Two primary issues are at question for hydroacoustic assessments of krill, The first is ...
Meeting Document : SC-CAMLR-VII/BG/22 : Autor(es): United States of America
-
Revised research longline fishing proposal for Dissostichus spp. in Subarea 48.2, second season
recommendations adopted, coordination was achieved with the Delegation of Ukraine to develop research in the ... Subarea in a collaborative way (WG-SAM-17, paragraph 4.110). In the context of the present proposal ... Abstract: This document contains the research plan proposed by the Chilean Delegation in the ... Modelling (WG-SAM) during the meeting held in Buenos Aires, Argentina, on 26 to 30 June 2017. Among the ...
Meeting Document : WG-FSA-17/27 : Autor(es): Delegation of Chile