Resultados de la búsqueda
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Krill and zooplankton populations monitored during AMLR 2004 surveys (Subarea 48.1) with respect to the long-term Elephant Island area datasets
Abstract: Net sampling during annual field season activities of the U.S. Antarctic Marine Living ... Resources (AMLR) Program yielded about average concentrations of postlarval krill during January and ... good recruitment of the 1990/00, 2000/01 and 2001/02 year classes and little contribution from the 2002 ... /03 season. Although little reproductive activity and unusually large proportions of immature ...
Meeting Document : WG-EMM-04/72 : Autor(es): V.J. Loeb (USA)
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Proposal for an experimental crab fishery in Subarea 48.3
population dynamics of P. spinosissima, and consists of three phases to be conducted over a period of two ... years/fishing seasons. Phase 1 occurs at the start of the first fishing season and is a "survey ... beginning of the second fishing season and is a series of three depletion experiments conducted in local ... areas. After Phase 2 normal fishing operations are conducted until CCAMLR initiates closure of the ...
Meeting Document : WG-FSA-93/22 : Autor(es): George Watters (USA)
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Research plan for toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2010/11
Abstract: In order to clarify the stock status and biological characteristics of Dissostichus spp ... Maru No. 3 to be conducted in April-June 2011. This is the second year of the survey of the 3-5 years ... the mark-and-recapture studies, sufficient tagging rate of 5 fish / ton will be conducted in the same ... manner as the 2009/10 survey. We calculated the two values (78 and 114 tonnes) of total allowable sample ...
Meeting Document : WG-SAM-10/15 : Autor(es): Delegation of Japan
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Propuesta para la elaboración, modificación y difusión de documentos científicos del Comité Científico mediante la herramienta de elaboración de informes que ya utiliza la Secretaría
. With the advent of the web-based technology for rapporteurs and Members to jointly develop reports of ... . It is proposed that the Scientific Committee develop an expanded set of reference documents as part ... of its strategy for communicating the history and status of its science to the Commission, the wider ... not aim to have a number of documents developed quickly but more to identify documents that might be ...
Meeting Document : SC-CAMLR-XXXIV/02 : Autor(es): Delegation of Australia
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Using preferred habitat models for chinstrap penguins (Pygoscelis antarctica) to help improve krill fisheries management during the penguin breeding season
planning. Using habitat models to understand which variables influence the distribution of predators at-sea ... can enable us to predict the distributions of un-tracked populations, and thus help to identify any ... impact penguin populations. We show that the distribution of chinstrap penguins can be predicted using ... two simple variables; the distance to the colony and a measure of the direction of travel towards the ...
Meeting Document : WG-EMM-17/33 : Autor(es): V. Warwick-Evans, N. Ratcliffe, H.L. Clewlow, L. Ireland, A. Lowther, F. Manco and P.N. Trathan
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Improving mechanistic understanding between larval krill, krill recruitment, and sea ice
paper is to provide the Working Group with a summary of our recent efforts published last year to ... Abstract: Antarctic Krill, Euphausia superba, is the key species of the Southern Ocean ecosystem ... Southwest Atlantic Sector, which has been specifically linked to a decrease in extent and duration of sea ... -ice coverage. More recent studies suggest more complex and/or dynamic nature of krill population ...
Meeting Document : WG-EMM-18/07 : Autor(es): B. Meyer and S. Kawaguchi
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Sharks by-catch observed on bottom longlines fishery off the Kerguelen Islands in 2006–2016, with a focus on Etmopterus viator
bycatch within the Kerguelen EEZ (northern part of the plateau). From 2006 to 2016, crew reported the ... total catches of the line and observers were asked to identify and count fish bycatch on 25% of the ... total fishing effort. A total of 26 203 longline hauls and more than 55 million hooks were checked by ... (99%). An abundance index (number of shark per 1 000 hooks observed) was used to show bathymetric and ...
Meeting Document : WG-FSA-18/25 : Autor(es): C. Chazeau, S.P. Iglésias, N. Gasco, A. Martin and G. Duhamel
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2019 Ross Sea shelf survey results and notification for research in 2020
Abstract: The time series of relative abundance and age structure from the Ross Sea shelf survey ... 2012, with a revised proposal presented in 2017 for five years (2018–2022). The objectives of the ... survey included monitoring the abundance and age structure of sub-adult (≤ 110 cm TL) toothfish in the ... south of SSRUs 881.J and 881.L in the southern Ross Sea (Strata A–C) using standardised gear in a ...
Meeting Document : WG-SAM-2019/03 : Autor(es): S. Parker and C. Jones
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Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica
, diet, and age estimation. All of the icefish sampled were identified as Chionobathyscus dewitti, and ... February, but this was limited, probably due to the short temporal distribution of the data. Length-at ... -maturity and age-at-maturity ogives indicated that 50% of the fish sampled were mature at about 340–360 mm ... (TL) and about 3–4 years of age and that 95% were mature at about 370–400 mm (TL) and 6–8 years of age ...
Meeting Document : WG-FSA-07/25 : Autor(es): C.P. Sutton, M.J. Manning, D.W. Stevens, P.M. Marriott (New Zealand)
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Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
Orkney Islands during the breeding seasons of 2000 and 2001. Satellite tracking data from of 19 Adélie ... penguins and 24 chinstrap penguins were used to compare foraging distributions. In both years the diet of ... both species was exclusively Antarctic krill (Euphausia superba) of the same size range. In a year of ... low prey availability (2000), there was a statistically significant segregation of foraging areas ...
Meeting Document : WG-EMM-02/15 : Autor(es): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)