Search results
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Best practice seabird by-catch mitigation for Spanish-rig longline vessels with emphasis on line weighting regimes
Abstract: The Spanish system is used in a range of demersal and semi-pelagic longline fisheries ... throughout the southern hemisphere and has been the source of a large number of seabird fatalities. An ... experiment was conducted on a chartered Spanish-rig vessel to improve the sink rate of longlines to reduce ... interactions with seabirds. The benchmark sink rate was that of integrated weight (IW) longlines, as used by ...
Meeting Document : WG-FSA-06/22 : Author(s): G. Robertson (Australia), C.A. Moreno (Chile), B. Wienecke (Australia), P. Gandini (Argentina), G. McPherson (Australia) and J.-P. Seco Pon (Argentina)
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
48.2 (South Orkney Island). The sampling stations were set in approximately the same geographical ... , 2012) and on shelf areas of the South Orkney Islands according to a subsample of stations sampled by ... the R/V ' Yuzhmorgeologiya ' (Jones & Kock, 2009). The cruise took place 6-27 January ... , 2018, primarily using a Hardbottom Snapper trawl (NET Systems, Inc.), previously used by the US AMLR ...
Meeting Document : WG-SAM-18/25 : Author(s): Delegation of Chile
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Filling knowledge gaps east in Dronning Maud Land to inform MPA planning by CCAMLR (ECOgaps): Norwegian cruise to DML 2019
Abstract: The aim of the ECOgaps is to improve the knowledgebase on physical conditions and biota ... east of the 0 meridian in the MPA planning Domain 4. Focusing on the Astrid ridge, the continental ... shelf off of Dronning Maud Land, and the Maud rise, multidisciplinary investigations will be conducted ... in 2019 by the RV Kronprins Haakon. In this working document, the cruise being planned is outlined ...
Meeting Document : WG-EMM-18/13 : Author(s): H. Steen, A. Lowther and O.A. Bergstad
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Chilean NPOA-Seabirds: first steps
Abstract: The progresses in the developing of the Chilean NPOA-S are described. At the moment, an ... Executive and a Technical Group have been constituted. First steps taken had been the selection of ... mitigation measures to be applied; the design of experiments to test specific combinations of mitigation ... measures, and the discussion of the Objectives and Goals of the NPOA-S. The final draft of the NPOA-S will ...
Meeting Document : WG-FSA-04/14 : Author(s): C.A. Moreno and J. Arata (Chile)
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Orientation of Antarctic krill in an aquarium
Abstract: Acoustic methods appear to be the best way to estimate Antarctic krill abundance ... aquarium aboard the R. V. Kaiyo Maru. Average body orientation was 45.6° (SD = 19.6°, N= 67), which was ... would tend to reduce the reflected echo intensity when compared to animals swimming horizontally ... . Although mature females with marked swelling of the cephalothorax were not included in the experiment, the ...
Meeting Document : WG-KRILL-93/24 : Author(s): Y. Endo (Japan)
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Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
Abstract: The incidence of entanglement in man-made debris by Antarctic fur seals (Arctocephalus ... gazella) at Bird Island, South Georgia, was monitored throughout the austral winter and summer of 1990/91 ... as part of an ongoing study by the British Antarctic Survey. A minimum of 8 seals were sighted ... entangled, 7 (88%) of which had their neck collars removed, during the winter months (April – October ...
Meeting Document : CCAMLR-X/BG/05 : Author(s): Delegation of UK
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Winter and summer foraging location of Adélie penguins from Mawson, Davis and Casey
with a diet which is largely comprised of the fishery target species Antarctic krill (Euphausia superba ... ). Being central-place foragers during the breeding season, their foraging range is restricted by the ... foraging locations is relevant to WG-EMM in terms of understanding the spatial and temporal scales of ... influence on CEMP parameters as well as the management of the Southern Ocean marine living resources in ...
Meeting Document : WG-EMM-13/08 : Author(s): L. Emmerson, N. Kokubun and C. Southwell (Australia)
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Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru
Abstract: In order to calculate the target strength of Antarctic krill (Euphausia superba) using ... -density contrasts between the animal and the surrounding water are required. Sound-speed and mass-density ... of krill were measured during the Antarctic surveys conducted by the Japanese RV Kaiyo Maru in 1999 ... density bottle method. The mean total length and the mean mass-density contrast were 43.5mm and 1.028 near ...
Meeting Document : WG-EMM-08/56 Rev. 1 : Author(s): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)
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Variability in krill length distribution in 48.1 derived from data collected by scientific observers
Abstract: Information on the length distribution of krill in the catch, and the spatial and ... temporal patterns of krill length in the population is essential to assess krill population status and ... dynamics, and the impacts of a fishery on the stocks. Here, we use generalised additive models (GAM) and ... generalised additive mixed models (GAMM) to evaluate the spatial and temporal patterns of length in Antarctic ...
Meeting Document : WG-EMM-15/16 : Author(s): P. Ziegler, S. Kawaguchi D. Welsford and A. Constable (Australia)
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CCAMLR Survey Database: development during 2002
Abstract: Considerable progress was made on the survey database in early 2002. However, this work ... had to be postponed because of a higher priority need for developing a web-based data system for the ... Catch Documentation Scheme. Work on the survey database in 2002 included: • revision of the database ... model; • documentation of the database specifications; • development of data uploading routines ...
Meeting Document : WG-FSA-02/10 : Author(s): Secretariat