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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2016 random stratified trawl survey
vicinity of Heard Island during April 2016. This paper provides a preliminary assessment of mackerel ... icefish population structure, abundance and yield for the area of Division 58.5.2 to the west of 79 o 20 ... the population. These projections indicate that catches of 561 t in the 2016/17 season and 402 t in ... : A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on ...
Meeting Document : WG-FSA-16/26 : Автор(ы): D. Maschette and D. Welsford
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Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity
Abstract: Total scattering cross-sections (st) of Antarctic krill, Euphausia superba, were ... strengths (??10log(??4?) t TTS), were measured from groups of 57 to 1169 krill (average standard length ... omnidirectional emitter into one of three glass carboys containing groups of krill swimming in 9.3, 19.3 or 45.9 l ... of seawater (0.6??temperature??3.6 °C). Between each pulse, the krill moved within the fixed-boundary ...
Meeting Document : WG-EMM-02/49 : Автор(ы): D.A. Demer and S. G. Conti (USA)
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Identification and speciation of Antarctic skates
Abstract: Two regions of mitochondrial (mt) DNA: cytochrome b and cytochrome c oxidase subunit 1 ... (COI) were sequenced in 9 species of Bathyraja skates from the Southern Oceans and New Zealand. Based ... Bathyraja n. sp. cf eatonii. There was no sequence divergence among samples of B. n. sp. “dwarf” from the ... Ross Sea and South Atlantic Ocean, the DNA sequence divergences are indicative of differentiation among ...
Meeting Document : WG-FSA-07/27 : Автор(ы): P.J. Smith, C.D. Roberts, A.L. Stewart, M. McVeagh and C.D. Struthers (New Zealand)
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A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in SSRU 88.2E for the 2004/05 season
excluding preventing very low estimates of stock size. Monte-Carlo Markov Chain (MCMC) diagnostics suggested ... some evidence of non-convergence, particular in the declining right-hand limb of the fishing ... selectivity parameters. MCMC estimates of initial (equilibrium) spawning stock abundance (B0) were very ... , were estimated to be 670 t. However, as the fishing selectivity was estimated to be to the right of the ...
Meeting Document : WG-FSA-05/31 : Автор(ы): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)
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Proposal for extension of fishing season on the exploratory fishery for Dissostichus spp. in Statistical Subarea 48.6 in the 2004/05 season
Abstract: Based on the last year's record of the operation and the advice by WG-IMAF/WG-FSA ... , the extension of the fishing season for the exploratory longline fishery for Dissostichus spp. in ... Statistical Subarea 48.6 north of 60°S is proposed. Author(s): Delegation of Japan Title: Proposal for ... extension of fishing season on the exploratory fishery for Dissostichus spp. in Statistical Subarea 48.6 in ...
Meeting Document : WG-FSA-04/18 : Автор(ы): Delegation of Japan
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Some thoughts of mackerel icefish distribution in connection with krill distribution
Abstract: The paper contains comparative analysis of mackerel icefish and krill vertical and ... horizontal distribution based on acoustic measurements and results of bottom and pelagic trawling sampling ... . Significance of studying the krill and mackerel icefish interaction for understanding the regularity of ... . Senioukov (Russia Title: Some thoughts of mackerel icefish distribution in connection with krill ...
Meeting Document : WAMI-01/06 : Автор(ы): S.M. Kasatkina, Zh.A. Frolkina, A.P. Malyshko and V.A. Senioukov (Russia
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Net-based verification of acoustic techniques used to identify Antarctic krill
. Using the SDWBA model, dB difference identification ranges based on the length-frequencies of krill in ... of 2-16 dB and (iv) '2 freq 2-12'-with an Sv120-38 range of 2-12 dB The '3 freq model ... identified only 6 of the 16 krill aggregations sampled the nets. contrast the '2 freq model' and ... orientation distributions applied the performance of the '3 freq model' was comparable with the two ...
Meeting Document : SG-ASAM-09/04 : Автор(ы): J. Watkins and S. Fielding (United Kingdom)
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Major outcomes from the third meeting of ACAP’s advisory committee
Seabird Bycatch Working Group on 17-18 June 2007. This paper provides a summary of the major outcomes of ... Abstract: The Third Meeting of the ACAP’s Advisory Committee was held in Valdivia, Chile from 19 ... – 22 June 2007. It was preceded by meetings of the Status and Trends Working Group on 16 June and the ... the meeting. Author(s): ACAP Secretariat Title: Major outcomes from the third meeting of ACAP’s ...
Meeting Document : WG-FSA-07/26 : Автор(ы): ACAP Secretariat
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An assessment of seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, March–May 1997
interactions with seabirds, and the effectiveness of measures employed to mitigate seabird mortality. In this ... setting operations and all but one during April, giving an average mortality rate of 0.018 birds/1000 ... hooks, and 0.099 birds/1000 observed hooks. Mortalities consisted of nine white-chinned petrels, two ... into the side of the vessel. Few birds were generally seen following the vessel during setting ...
Meeting Document : WG-FSA-97/09 : Автор(ы): Ashford, J.R., Croxall, J.P.
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The relative impacts of Autolines and Spanish longlines on vulnerable marine ecosystems
of protecting VMEs, but work comparing the effects of different gear types has been relatively ... limited. We used data collected by the longline fishery in Subarea 88.1 to compare the impacts of ... Autolines and Spanish longlines on VME taxa. We found that the probabilities of observing positive ... bycatches and the amounts of positive bycatch decreased with depth, but we also found that the rate at which ...
Meeting Document : WG-FSA-12/27 : Автор(ы): T. Gerrodette and G. Watters (USA)
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