Search results
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Marine classification: lessons from the New Zealand experience
the marine environment, and applying them for management. We assert that recent innovations in ... the Southern Ocean sensitive to ecologically important contrasts, consistent with CCAMLR’s ecosystem ... representations such as produced by marine classifications. We identify important ecosystem processes that may not ... be captured by even the best classifications, and warn against uncritical or misinformed application ...
Meeting Document : WS-BSO-07/6 : Author(s): B. Sharp, M. Pinkerton and J. Leathwick (New Zealand)
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UPDATED BIOLOGICAL PARAMETERS FOR THE ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA
Amblyraja georgiana to B. cf. eatonii, which is consistent with a previous estimate based on a large sample ... length-weight regression relationships for male and female A. georgiana confirmed that male and female ... combination of improved observer staging of skates, and a moderate-sized sample of whole skates that was ... male and female A. georgiana, which was estimated to be 67.3 cm pelvic length (= 96.5 cm total length ...
Meeting Document : WG-FSA-08/20 : Author(s): M.P. Francis and S. Mormede (New Zealand)
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Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a
coming years in order to achieve a robust stock assessment that would provide advice on a catch limit ... according to CCAMLR decision rules. This paper aims to present a research plan for 2014/2015 that takes into ... which catch rates are known to be much lower. Given these results and the concentration of fishing ... assessment next year. It is suggested also to define a catch limit with an appropriate local exploitation ...
Meeting Document : WG-FSA-14/05 : Author(s): Delegation of France
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Maximum entropy reconstruction of stock distribution and inference of stock density from line-transect acoustic survey data
across the whole survey area that is both consistent with the observed data and for which the entropy is ... images from incomplete and noisy physical data (e.g. radio telescope data) and we suggest that it could ... be of benefit to the fisheries acoustic community, increasing the accuracy of acoustic estimates of ...
Meeting Document : WG-EMM-02/35 : Author(s): A.S. Brierley, S.F. Gull and M.H. Wafy (United Kingdom)
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Swimming speed and allocation of time during the dive cycle of Antarctic fur seals
descent and ascent phases of dives with a reduction in speed near the bottom of the dive, when the seals ... were assumed to be feeding on krill. Surface interval increased as a curvilinear function of dive ... duration and was influenced by diving swimming speed. This relationship was, on average, close to that ... predicted by a model (Houston & Carbone, Behav. Ecol., 3, 255-265) which suggested that the metabolic ...
Meeting Document : WG-EMM-95/25 : Author(s): Bevan, R.M., Boyd, I.L., Reid, K.
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Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica
showed no significant difference in sex ratio. Meristic, diet and age data were consistent with previous ... data showed that most fish were either immature or resting (mature). Gonado-Somatic Indices (GSI) were ... -maturity and age-at-maturity ogives indicated that 50% of the fish sampled were mature at about 340–360 mm ... (TL) and about 3–4 years of age and that 95% were mature at about 370–400 mm (TL) and 6–8 years of age ...
Meeting Document : WG-FSA-07/25 : Author(s): C.P. Sutton, M.J. Manning, D.W. Stevens, P.M. Marriott (New Zealand)
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Preliminary investigations of an assessment model for skates and rays in the Ross Sea
multi-species catch has not been investigated. While is it plausible that a general model may be ... attempted to create a catch history of all skates and rays in the Ross Sea, and integrate these data with ... assessment model. We conclude that aspects of the catch history were very uncertain, including the species ... conclude that additional research is required to investigate the usefulness of such models. We also make a ...
Meeting Document : WG-SAM-07/4 : Author(s): A. Dunn, S.M. Hanchet, S.L. Ballara and M.P. Francis (New Zealand)
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) - Version 2015 - Part A: General context of the establishment of MPAs and background information on the Weddell Sea MPA planning area-
concerning chapters that have to be (further) developed or revised. Author(s): K. Teschke (Germany) on ... EMM) the background document that provides the scientific basis for the evaluation of a marine ... scenario development with the directly science-based aspects of the WSMPA proposal, i.e. the objectives and ... state of Part A of the document that has been presented at the meeting of the CCAMLR Scientific ...
Meeting Document : WG-EMM-15/38 Rev.1 : Author(s): K. Teschke (Germany) on behalf of the Weddell Sea MPA (WSMPA) project team
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Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula
high of 148 (95% PI = 101-226). This increase may be a response to changing ice conditions that ... whales that are phenotypically, genetically and culturally distinct and rarely sighted away from ... Antarctica. In contrast, less is known about the Type A killer whales that are more typical in appearance to ... (up to 13 years), and a Bayesian mark-recapture analysis estimated that the average annual abundance ...
Meeting Document : WG-EMM-17/49 : Author(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
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CPUEs and body length of Antarctic krill during 1994/95 season in the fishing grounds around the South Shetland Islands
Elephant Island Krill with a modal length of 48-50mm were dominant in catches, extreamly larger than the ... previous season. Author(s): Naganobu, M., Ichii, T., Kawaguchi, S. Title: CPUEs and body length of ...
Meeting Document : WG-EMM-96/47 : Author(s): Naganobu, M., Ichii, T., Kawaguchi, S.