Resultados de la búsqueda
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SPATIAL PATTERNS IN MACKEREL ICEFISH DIET PROVIDES INSIGHTS INTO KRILL ABUNDANCE AND DISTRIBUTION
South Georgia and Shag Rocks shelves in January 2009. The results show that the diet of this normally ... occurrence of krill in the diet with earlier data sets (1967-1992) show that 2009 is not unique, as similarly ... heterogeneity in the occurrence of prey, which is likely indicative of krill distribution. The utility of ... Abstract: The diet of mackerel icefish was investigated from stomachs of 828 fish caught on the ...
Meeting Document : WG-EMM-09/27 : Autor(es): M.A. Collins and C.E. Main (United Kingdom)
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Variation in foraging effort by lactating Antarctic fur seals: response to simulated increased foraging costs
investment. Reduction in food availability or increased foraging costs will alter the optimal behavior of ... additional drag to increase the cost of transport in comparison with a control group (n = 8). At the scales ... Abstract: Seasonally breeding predators, which are limited in the. time available for ... provisioning young at a central location, and by the fasting abilities of the young, are likely to maximize ...
Meeting Document : WG-EMM-97/08 : Autor(es): Walker, T.R., McCafferty, D.J., Boyd, I.L.
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Growth and shrinkage in Antarctic krill Euphausia superba is sex-dependent
during this time in response to the low availability of food. Nevertheless, verification that krill can ... shrink in the natural environment is lacking because winter data are difficult to obtain. One of the few ... operations carried out in this region at other times of the year. Our analyses revealed body-length shrinkage ... in adult females but not males during winter, based on both the tracking of modal size classes over ...
Meeting Document : WG-EMM-16/P04 : Autor(es): G. Tarling, S. Hill, H. Peat, S. Fielding, C. Reiss and A. Atkinson
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Research program on Dissostichus spp. in Divisions 58.4.1 and 58.4.2 from 2019/20 to 2021/22
Abstract: The Scientific Committee considered the assessment of Dissostichus spp. in data-poor ... types for the implementation of a multi-Member research on Dissostichus spp. in East Antarctica ... efficiency and reliability. In the context of the discussion of the Scientific Committee (SC-CAMLR-XXXVII p ... ): Delegation of the Russian Federation Title: Research program on Dissostichus spp. in Divisions 58.4.1 and ...
Meeting Document : WG-SAM-2019/19 : Autor(es): Delegation of the Russian Federation
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Proposal for multi-Member research on Dissostichus spp. in Divisions 58.4.1 and 58.4.2 from 2019/20 to 2021/22
Abstract: The Scientific Committee considered the assessment of Dissostichus spp. in data-poor ... types for the implementation of a multi-Member research on Dissostichus spp. in East Antarctica ... efficiency and reliability. In the context of the discussion of the Scientific Committee (SC-CAMLR-XXXVII p ... ): Delegation of the Russian Federation Title: Proposal for multi-Member research on Dissostichus spp. in ...
Meeting Document : WG-FSA-2019/52 : Autor(es): Delegation of the Russian Federation
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Reproduction in Antarctic notothenioid fish - a review
gunnari in the Atlantic Ocean sector do not spawn each year. Gonadosomatic index (GSI) of females is 15–40 ... weight. It exceeds 100 000 eggs only in a few nototheniid species and is commonly in the order of 1000 to ... observed in three species but may be more common in particular among the artedidraconids. A number of ... although spawning is likely to take place annually. However, part of the populations of Champsocephalus ...
Meeting Document : SC-CAMLR-X/BG/12 : Autor(es): Delegation of Germany
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Demersal finfish distribution, abundance and their biological characteristics in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020)
2020. Based on the experience gained in the first phase of research and recommendations made by WG-SAM ... Subareas 48.1 and 48.2 in accordance with CM-24-01 is provided. The objective of this research survey is to ... determine the distribution, abundance, and size composition of demersal finfish in Subareas 48.1 and 48.2 ... . In this revised proposal, the study area includes the continental shelf of Elephant Island and of ...
Meeting Document : WG-SAM-17/18 : Autor(es): Delegation of Chile
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Demersal finfish distribution, abundance and their biological characteristics in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020)
2020. Based on the experience gained in the first phase of research and recommendations made by WG-SAM ... Subareas 48.1 and 48.2 in accordance with CM-24-01 is provided. The objective of this research survey is to ... determine the distribution, abundance, and size composition of demersal finfish in Subareas 48.1 and 48.2 ... . In this revised proposal, the study area includes the continental shelf of Elephant Island and of ...
Meeting Document : WG-FSA-17/28 : Autor(es): Delegation of Chile
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Modelling catch and effort data using generalised linear models with random cruise effects: trawl fishery for mackerel icefish (Champsocephalus gunnari) in CAMLR Area 58.5.2
parameter values was presented in WG-FSA-SAM 03-12 using Dissostichus eleginoides in Subarea 48.3 of the ... in 2001 is most likely the result of the large abundance of 3 and 4 year-old fish in that year, which ... models (GLMMs) including data analytic methods for examining the appropriateness of model structure and ... CAMLR area as an example dataset. The application of these procedures to trawl catches of ...
Meeting Document : WG-FSA-03/35 : Autor(es): S.G. Candy (Australia)
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2019 Ross Sea shelf survey results and notification for research in 2020
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 ... Nova Bay surveyed in 2019. The estimated relative biomass index of toothfish showed an increase to the ...
Meeting Document : WG-SAM-2019/03 : Autor(es): S. Parker and C. Jones