Search results
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ON THE STRATOSPHERE OZONE DISTRIBUTION ASYMMETRY POSSIBLE IMPACT ON KRILL BASED ECOSYSTEM
Abstract: Besides the climate change impact on krill based ecosystem uncertainties the factors of ... the ozone distribution asymmetry influence over South Ocean is discussed. The existence of the ... stratosphere is observed last decades. As was shown by authors earlier in the latitudinal interval of 55-75°S ... in Antarctic spring months (Sep-Nov) the minimum of quasi-stationary wave (QSW) in total ozone ...
Meeting Document : WG-EMM-09/36 : Author(s): G. Milinevsky (Ukraine)
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DOWN-SCALING FOOSA TO MODEL THE ADMIRALTY BAY PYGOSCELID PENGUIN COLONIES: A WORK IN PROGRESS
Abstract: We apply Foosa at the scale of interactions among the 3 breeding penguin colonies ... -fitting framework for the purpose of model validation, and 2) to add and explore functionality in Foosa to ... estimation. Preliminary examination of top-down and bottom-up forcing on juvenile penguin survival further ... -off between per-capita productivity at low adult abundance and the sensitivity of juvenile survival to ...
Meeting Document : WG-EMM-08/51 : Author(s): J.T. Hinke, G.M. Watters and W.Z. Trivelpiece (USA)
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Research plan for exploratory fishing for toothfish (Dissostichus spp.) in 2016/17 in Division 58.4.2 by France
Korean-flagged vessel undertook research fishing activity with a total reported catch of 11 tonnes. For ... 2016 a total of five vessels, one each from Australia, France, Japan, Korea and from Spain, have ... to participate and coordinate the operations of their research efforts with other members in order to ... absence of an assessment using the CCAMLR decision rules, the catch limit should remain unchanged at 35 ...
Meeting Document : WG-SAM-16/02 : Author(s): Delegation of France
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Risk assessment framework for subdividing the krill catch trigger level, including relevant background data and information
CM 51-07, which is due to lapse at the end of the 2015/16 fishing season, and presented its ... discussions on this subject in paragraphs 2.201 to 2.244 of its WG report. WG-EMM recommended that work be ... populations, in particular land-based predators, of being inadvertently or disproportionally affected by the ... krill fishery. It assesses the localised risk of such effects, according to the requirements in the ...
Meeting Document : SC-CAMLR-XXXV/BG/37
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Invitation to participate in a workshop on krill fishery management for Subareas 48.1 and 48.2
Management for Subareas 48.1 and 48.2. The overarching objective of this workshop will be to explore how ... are not limited to, feedback management and the use of research zones within the proposed D1MPA, and ... the Workshop will be coordinated the 2019 meeting of WG-EMM, and products of the Workshop will be ... submitted to the 2019 meeting of SC‑CAMLR. Author(s): G. Watters and P. Trathan Title: Invitation to ...
Meeting Document : SC-CAMLR-XXXVII/24 : Author(s): G. Watters and P. Trathan
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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
future of precautionary limits could be applied to subareas or local areas. Nine alternative methods of ... which information on biological relationships is considered, (ii) the cost of data collection, (iii) the ... reliability of required information, (iv) the ease of enforcement, (v) the effects on current fishing patterns ... , predator censuses, and predator-prey models include large amounts of biological information, but may not be ...
Meeting Document : WG-EMM-01/29 : Author(s): G. Watters and R. Hewitt (USA)
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2
Abstract: Minimising seabird interactions with longline operations is a key objective of the ... management of fisheries in CCAMLR (see e.g. Conservation Measure CM 25-02 and 41-08). Longline fishing in the ... winter fishery (1 May- 14 September) to minimise seabird interactions, and has employed a wide range of ... , as the risk in the period of the three season extension trials is comparable to that in the existing ...
Meeting Document : WG-FSA-2019/31 : Author(s): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell
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Problems in estimating population length at age from commercial catches, the Patagonian toothfish as an example
Abstract: Age based fishery population models require information on size at age of the fished ... population and the commercial catch. Age-length keys can be produced by standardised random sampling of the ... commercial catches. This information does not necessarily reflect the size at age of the fished population ... and may be seriously biased. Through the use of a model, and using the Patagonian toothfish as an ...
Meeting Document : WG-FSA-01/17 : Author(s): I. Everson (United Kingdom)
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Reproduction in the mackerel icefish (Champsocephalus gunnari) at South Georgia
macroscopic examination of gonads. Evidence in support of the hypothesis that a proportion of mature fish fail ... to spawn was obtained. Histological examination of ovaries indicates that some ova were undergoing ... underlying cause is probably due to a shortage of krill, an important dietary item for Champsocephalus ...
Meeting Document : WG-FSA-91/07 : Author(s): I. Everson (United Kingdom), K.-H. Kock (Germany), G. Parkes (United Kingdom), D. Cielniaszek and J. Szlakowski (Poland)
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Annotated bibliography: seabird interactions with trawl fishing operations and cooperative research
Abstract: We briefly summarize the available literature (17 documents) on the nature of seabird ... interactions with trawl gear, efforts to date on the development of technologies to prevent these interactions ... cooperative research with the fishing industry (2 documents). The purpose of this review was to bring this ... emerging issue in seabird conservation to the attention of the fishing industry and fishery managers, and ...
Meeting Document : WG-FSA-04/47 : Author(s): K. Dietrich and E. Melvin (USA)