Search results
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Krill length and age at maturity
identical for krill. Comparisons with length at age data show that females mature in the third year of the ... calculate length and age at maturity for the Antarctic krill Euphausia superba. L50 values of 34.62 to 35.90 ... life cycle (age class 2 +), while males reach maturity in the fourth year as age class 3 +. Both sexes ... Abstract: Data from several summer surveys to the Antarctic Peninsula region were analysed to ...
Meeting Document : WG-KRILL-93/40 : Author(s): V. Siegel (Germany) and V. Loeb (USA)
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Estimating confidence intervals for fish stock abundance estimates from trawl surveys
for estimates of abundance obtained from trawl surveys conducted by means of the swept area method, using ... obtained from trawl surveys conducted by means of the swept area method, using likelihood ratios from ... by means of the swept area method, using likelihood ratios from Aitchison's delta distribution. Simulation ... unbiased estimate of the mean density is: where and s2 are the sample mean and sample variance ... and: m- l G,(t)= l+----t m Pennington (1983) gives the following unbiased estimator for the variance of the mean density: The usual ... sample statistics for the mean and variance are not minimum variance estimators for this distribution ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 203–207 : Author(s): de la Mare, W.K
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CCAMLR ecosystem monitoring and a feedback management procedure for krill
attributable to loss of prey through fishing activities. The principal fishery in the CCAMLR area is the krill ... fishery and this paper examines ways in which the information being obtained from the Ecosystem Monitoring ... Abstract: The CCAMLR Ecosystem Monitoring Programme has been developing a techniques-which might ... detect short term declines in land-based predator performance (eg. reproductive performance) that may be ...
Meeting Document : WG-KRILL/CEMP-92/04 : Author(s): A. Constable (Australia)
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Age-length key for Champsocephalus gunnari from Subarea 48.3; Holmberg survey, February 1995
. At South Georgia, a good agreement between modes in the size distribution and mean length at age was found ... for age groups one and two. Mean lengths at age reported here for South Georgia are in line with previous ... . At South Georgia, a good agreement between modes in the size distribution and mean length at age was found ... for age groups one and two. Mean lengths at age reported here for South Georgia are in line with previous ...
Meeting Document : WG-FSA-95/37 : Author(s): Casaux, R., Marschoff, E., Barrera-Oro, E.
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Method for data treatment of biological samples of multidimensional parameters applied to: Euphausia superba Dana (krill) (+) (received too late for discussion during meeting)
of krill individuals by means of a data process deigned to obtain criteria for the coherent selection ... individuals by means of a data process deigned to obtain criteria for the coherent selection and grouping ...
Meeting Document : WG-DCH-84/28 : Author(s): J.S. Panizza, A.P. Tomo, E. Marschoff and C. Massigoge (Argentina)
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Resolution Resolution 17/XX (2001)
and misuse of the CDS seriously undermines the effectiveness of CCAMLR conservation measures, 1. Urges ... biomass of Dissostichus spp. in such areas, in order to assist the Commission in the conservation ... of the information in the relevant DCD shall not be requested for the trawlers as described in Conservation Measure ... Use of VMS and other measures for the verification of CDS catch data for areas outside the ... Convention Area, in particular, in FAO Statistical Area 51 Species: Dissostichus spp. Adopted at meeting ... : CCAMLR-XX Period in Force: 2001- ...
Resolution : 17/XX (2001)
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Networks and tools to enhance collaboration and coordination of observational activities
play in CCAMLR ecosystem monitoring and observation, spatial management of impacts on ecosystems ... of this, this Background Paper provides an update on SOOS activities of the last year, that are ... Abstract: SOOS has been recognised by the Scientific Committee as having an important role to ... international, scientific body that advocates for and collects observational Southern Ocean data. In recognition ...
Meeting Document : SC-CAMLR-38/BG/27 : Author(s): Submitted by SCOR
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History of development and completion of tasks put forward by WG-EMM (1995–2000)
Abstract: In response to the debate at WG-EMM-99 about the development of the ecosystem approach ... within CCAMLR. The Secretariat prepared a review of the various tasks initiated at WG-EMM-95 and later ... meetings (WG-EMM-00/29). The Working Group requested that the review should be updated annually. The 2001 ... review covers meetings of WG-EMM from 1995 to 2000. Author(s): Secretariat Title: History of ...
Meeting Document : WG-EMM-01/4 : Author(s): Secretariat
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PECHEKER-SIMPA – A tool for fisheries management and ecosystem modeling
features of SIMPA, making it a desirable tool for fisheries management and ecosystem modeling in the region ... , readily available and easily accessible. The development of a specific database for the Kerguelen Plateau ... from the French Sub-Antarctic Territories. The use of reference tables and standardized computer ... is to encode data on the benthic marine invertebrates of the Kerguelen Plateau. This will improve the ...
Meeting Document : WS-MPA-11/P02 : Author(s): P. Pruvost, A. Martin, G. Denys and R. Causse
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Feeding of nine Antarctic fish species and their daily ration evaluations
ranged from 3 to 9 times their body weight. Mean annual diet volume of antarctic fish species was around ... . Mean annual diet volume of antarctic fish species was around 5 times their body weight. ...
Meeting Document : WG-FSA-91/08 : Author(s): Ye. A. Pakhomov and V. B. Tseitlin (USSR)