Search results
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Identification of Pleuragramma antarctica larvae in the Ross Sea via mitochondrial DNA
Abstract: Research into the early life stages of Pleuragramma antarctica is essential to ... understanding how oceanographic variation will impact spatial distributions over time. The recent findings of ... , length and growth data for larvae found in the western and eastern Ross Sea during the austral summer of ... genomic DNA from a sample of these larvae and, using fish universal primers, amplified part of the 16S ...
Meeting Document : WG-FSA-15/61 : Author(s): J.A. Caccavo (Italy), C. Brooks (USA), L. Zane (Italy) and J.R. Ashford (USA)
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Distributions and predator-prey interactions of macaroni penguins, Antarctic fur seals, and Antarctic krill near Bird Island, South Georgia
Abstract: We studied the distributions, abundances and interactions of macaroni penguins Eudyptes ... . Simultaneous surveys of marine birds, Antarctic fur seals and Antarctic krill were conducted along a series of ... transects radiating from the breeding colonies of the vertebrate predators. We examined the relationships ... between the distributions of predators and their prey with respect to the abundance of krill in the water ...
Meeting Document : WG-CEMP-93/12 : Author(s): G.L. Hunt, Jr (USA), D. Heinemann (USA) and I. Everson (United Kingdom)
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Gentoo penguin Pygoscelis papua diet as an indicator of planktonic availability in the Kerguelen Islands
Abstract: Since penguins rely on the main planktonic resources of the Southern Ocean, knowledge ... of their diet may be used for monitoring these resources. During winter and spring of 1987 and 1989 ... , we investigated the composition of the diet of gentoo penguins, Pygoscelis papua, in relation to ... changes in the availability of two prey species, Euphausia vallentini and Themisto gaudichaudii, sampled ...
Meeting Document : WG-Joint-94/11 : Author(s): C.A. Bost, P. Koubbi, F. Genevois, L. Ruchon and V. Ridoux (France)
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... , probably as a result of more variable hydrographic conditions. About 50% of the catch in Subarea 48.1 from ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ...
Meeting Document : WG-KRILL-92/19 : Author(s): D.J. Agnew (Secretariat)
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Selectivity of standard polish commercial trawl codends on Antarctic fishing grounds
= 100 mm, made of double twines with a thickness of 4.2 mm. The studies covered 6 major fish species. 1 ... during trawling, although the effectiveness of this process- especially in the latter case- is not ... tendency to pass through meshes of the codend than Antarctic icefish and bumphead notothenia. 3. The ... solution to the problem of ensuring selectivity of codends at a sufficiently good level seems possible as a ...
Meeting Document : SC-CAMLR-VII/BG/11 : Author(s): J. Zaucha (Poland)
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Using digital video monitoring systems in fisheries: applications for monitoring compliance of seabird avoidance devices and seabird mortality in Pacific halibut longline fisheries
Halibut Commission (IPHC) for a project examining the feasibility of electronic monitoring systems (EMS ... ) in the Pacific halibut longline fleet operating off the state of Alaska. The project was conducted on ... two of the IPHC stock assessment survey vessels fishing in Alaska during 2002. The objectives of the ... project were to: 1) examine the ability of an electronic monitoring system to provide images that would ...
Meeting Document : WG-FSA-04/24 : Author(s): R.T. Ames, G.H. Williams and S.M. Fitzgerald (USA)
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Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
community of top predators in the shelf waters of the Ross Sea. In spite of their abundance and important ... role in Antarctic food chains, very little is known of many ecological and biological aspects of this ... species. A combined trawl and acoustic survey of silverfish was carried out on the western Ross Sea shelf ... during the New Zealand International Polar Year Census of Antarctic Marine Life research voyage on R.V ...
Meeting Document : WG-FSA-10/P04 : Author(s): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each block in such a way ... that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of coefficient ... variance of biomass estimate from the bootstrapped procedure, under the condition that the exploitation ... blocks, in order to promote successful stock assessment. We tentatively examined the degree of coverage ...
Meeting Document : WG-FSA-13/38 : Author(s): Delegation of Japan
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Candidate baseline data for ecosystem indicators in the Ross Sea region. Part A: Brief presentation of data
facilitate assessment of the degree to which the RSRMPA achieves its objectives. The Plan also identifies a ... set of indicators that, when observed or quantified, provide baseline data for key species and ... characterize the status of the marine ecosystem in the Ross Sea region. These baselines provide benchmarks from ... which to assess change and evaluate the performance of the MPA. Here, and in an accompanying background ...
Meeting Document : SC-CAMLR-XXXVII/11 : Author(s): Delegation of the USA
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Distribution of albatrosses and petrels in the WCPFC Convention Area and overlap with WCPFC longline fishing effort
Abstract: This paper presents an analysis of the distribution of albatrosses and petrels in the ... area under the jurisdiction of the Western and Central Pacific Fisheries Commission (WCPFC), using data ... from the BirdLife Global Procellariiform Tracking Database. • The WCPFC area includes 41% of the global ... breeding distribution of albatrosses and petrels. • Albatross distribution is concentrated north of 20ºN ...
Meeting Document : WG-FSA-06/19 : Author(s): C. Small (BirdLife International)