Search results
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INGESTION OF FISHING GEAR AND ENTANGLEMENTS OF SEABIRDS: IMPLICATIONS FOR MONITORING AND MANAGEMENT
non-target species. Although deliberate dumping of plastics at sea is banned, not all fisheries ... legislation prohibits discarding of gear (hooks and line) in offal, and compliance is often unknown. Analysis ... of a 16 year dataset collected at Bird Island indicated that the amount of gear found in association ... with wandering albatross colonies was an order of magnitude greater than in any other species ...
Meeting Document : WG-IMAF-09/10 : Author(s): R.A. Phillips, C. Ridley, N. Harrison (United Kindom), K. Reid (Secretariat), G.N. Tuck (Australia) and P.J.A. Pugh (United Kingdom)
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Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
Abstract: The pattern of prey distribution can profoundly affect the foraging behavior and ... success of a predator. In pelagic marine ecosystems, where prey is often patchily distributed, predators ... must be able to adapt quickly to changes in the spatial patterning of prey. Antarctic fur seals feed ... indication of the distance between patches. The frequency distribution of intervals between bouts of foraging ...
Meeting Document : WG-EMM-95/23 : Author(s): Boyd, I.L.
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Network characterisation of the food-web of the Ross Sea, Antarctica
Abstract: A balanced ecosystem model is used to explore the system-level characteristics of the ... food-web of the Ross Sea shelf and slope before the advent of commercial fishing for Antarctic ... toothfish (Dissostichus mawsoni) in the region. We evaluate: (1) biomass and flow of organic matter by ... food-web structure and function at the spatial, temporal and ecological scale of the ecosystem model ...
Meeting Document : WG-EMM-12/53 : Author(s): M.H. Pinkerton and J.M. Bradford-Grieve (New Zealand)
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A critical re-examination of the evidence for a possible dependence of Weddell seals (Leptonychotes weddellii) on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
(Dissostichus mawsoni; ‘toothfish’) in the Ross Sea may affect the ecological viability of top predators such as ... Weddell seals (Leptonychotes weddellii), but available evidence remains inconclusive as a result of both ... the assumptions underlying application of stable isotope methodology to Weddell seals, and estimate ... the potential contribution of toothfish to the diet of Weddell seals using an isotope mixing model ...
Meeting Document : WG-EMM-13/28 : Author(s): R. Eisert, M.H. Pinkerton (New Zealand), S.D. Newsome and O.T. Oftedal (USA)
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Exploration of CPUE standardisation variances in the Ross Sea (Subareas 88.1 and 88.2A South of 70°s) Antarctic toothfish (Dissostichus mawsoni) exploratory longline fishery
Abstract: Catch rates or catch per unit of effort (CPUE) are used for data-poor exploratory ... interim of collecting sufficient tag recaptures. Here, we address the two questions: (1) which unit of ... such as gear type, vessel, fishing season, month, bait, fishing depth and area affect estimates of ... trend and magnitude of catch rates. Using data from the Ross Sea Antarctic toothfish fishery, we ...
Meeting Document : WG-SAM-2019/25 : Author(s): D. Maschette, S. Wotherspoon and P. Ziegler
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On the very high likelihood of bycatch of ice krill (Euphausia crystallorophias) in the present-day fishery for Antarctic krill (E. superba)
, Scotland, June 2017) attended by representatives of the Association of Responsible Krill harvesting ... companies (ARK), the Marine Stewardship Council (MSC) and CCAMLR, it became apparent that no bycatch of Ice ... a condition of their fishing permits to report all bycatch. Since the present-day Antarctic krill ... fishery operates in geographic areas that overlap with the known range of Ice krill, that Ice krill and ...
Meeting Document : WG-EMM-18/05 : Author(s): A.S. Brierley and R. Proud
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Plan of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2016/17
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... of the first and the second stage of this program. It highlights the Weddell Sea as one of the most ... promising area for exploratory fishery of Dissostichus sp. However, fishery in Subarea 48.5 is closed on the ...
Meeting Document : WG-SAM-16/25 : Author(s): Delegation of the Russian Federation
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Plan of the research program of Russian Federation in Subarea 48.5 (Weddell Sea) in season 2017/18
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... of the first and the second stage of this program. It highlights the Weddell Sea as one of the most ... promising area for exploratory fishery of Dissostichus sp. However, fishery in Subarea 48.5 is closed on the ...
Meeting Document : WG-SAM-17/22 : Author(s): Delegation of the Russian Federation
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Plan of the research program of Russian Federation in Subarea 48.5 (Weddell Sea) in season 2017/18
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... of the first and the second stage of this program. It highlights the Weddell Sea as one of the most ... promising area for exploratory fishery of Dissostichus sp. However, fishery in Subarea 48.5 is closed on the ...
Meeting Document : WG-FSA-17/25 : Author(s): Delegation of the Russian Federation
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Further calculations of the effects of krill fishing on predators
random component in the relationship between krill biomass and availability. An examination of the ... consequences in the case of the blackbrowed albatross suggest that these other factors result in yet lesser ... resilience of the albatross population to the effects of a krill fishery. An approach for estimating the ... parameters of functional relationships between survival rates and krill biomass (or availability) is ...
Meeting Document : WG-Krill-94/24 : Author(s): D.S. Butterworth and R.B. Thomson (South Africa)