Search results
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Contribution to the early life history of Channichthyidae from the Bransfield Strait and South Georgia
examined. Their postlarvae and juveniles were found numerously in krill catches in the Scotia Sea area ... patterns of microincrements, discernible in these otoliths under a light microscope, in most cases are ... , approximating in diameter otoliths of C. gunnari postlarvae. Ageing of single juveniles of Chaenodraco ... , Cryodraco and C. rastrospinosus, stored for some time•in formalin, did not produced satisfactory result ...
Meeting Document : CCAMLR/86/FA/08 : Author(s): W. Ślósarczyk (Poland)
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Geographical aspects of utilising resources of krill (Euphausia superba)
Abstract: This paper presents data on the distribution of E. superba in the Atlantic sector and ... . In a number of subregions on the periphery of the Weddell Gyre (both to the north and south), as well ... as in the coastal waters of the Antarctic continent, the formation of krill aggregations is variable ... in terms of location of individual aggregations. The main difficulty with starting up a fishery there ...
Meeting Document : WG-EMM-96/05 : Author(s): Makarov, R.R.
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SC-CAMLR work on Climate Change (Paper XP19 to CEP–SC-CAMLR Workshop 2016)
the impetus for work in the Scientific Committee on the effects of climate change, in order to provide ... , in a timely manner, the ‘best scientific evidence available’ on three issues Risks of climate change ... of fishing, or increasing the risk of invasive marine species in the CCAMLR area; Status of AMLR and ... conserve AMLR because the Reference State had changed; Requirements for adapting harvest strategies in the ...
Meeting Document : WG-EMM-16/71 : Author(s): A. Constable
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DIRECT EFFECTS OF CLIMATE CHANGE ON THE ANTARCTIC KRILL FISHERY
thought of as being indirect, for example through distributional changes of fish populations, changes in ... marine biodiversity or changes in oceanic productivity. We show that in Antarctic waters there is already ... seasonal behaviour of the region’s largest fishery, that for Antarctic krill. Declining sea ice cover in ... the main krill fishing grounds has resulted in greater accessibility of krill stocks to the fishing ...
Meeting Document : WG-EMM-09/P06 : Author(s): S. Kawaguchi, S. Nicol and A.J. Press
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Lessons from CCAMLR on the implementation of the ecosystem approach to managing fisheries
widely recognised as a leading international organisation in developing best-practice in the ecosystem ... . CCAMLR is demonstrating that EBFM does not need to equate to complexity in management and that methods ... predators on their prey. Science has an important role in implementing EBFM, not only in measuring and ... assessing the status of target species and their predators, but also in designing cost-effective management ...
Meeting Document : WG-EMM-12/P06 : Author(s): A.J. Constable
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Population, breeding, diet and conservation of Crozet shag Phalacrocorax [atriceps] melanogenis at Marion Island, 1994/95 to 2002/03
at subantarctic Marion Island decreased by 68% from 841 pairs in 1994/95 to 272 pairs in 2002/03. The ... birds breeding in any given season. The decreases coincided with a period of warming and reduced ... precipitation at Marion Island and with a decrease in the number of gentoo penguins Pygoscelis papua breeding ... there. Both these seabird species forage inshore and there is considerable overlap in their diets ...
Meeting Document : WG-EMM-03/17 : Author(s): R.J.M. Crawford, J. Cooper, B.M. Dyer, A.C. Wolfaardt, D. Tshingana, K. Spencer, S.L. Petersen, J.L. Nel, D.G. Keith, C.L. Holness, B. Hanise, M.D. Greyling and M. du Toit (South Africa)
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On influence of acoustic survey methodology improvement on krill biomass estimation. (A comparison of results of acoustic surveys based on single-frequency and double-frequency algorithms)
Abstract: Substantial improvements in data collection and analytical methodologies of acoustic ... influence of such improvements on krill biomass estimation. The letter seems to become useful in comparative ... algorithms that were obtained by processing data on Russian R/V ATLANTIDA surveying in 48.4 Subarea according ... difference in krill biomass estimates. A difference was more than 1.8 times in the case under consideration ...
Meeting Document : WG-EMM-01/41 : Author(s): S.M. Kasatkina and A.P. Malyshko (Russia)
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Preliminary results on by-catch of fishes caught by the fishery vessel Chiyo Maru No. 3 to the north of the South Shetland Islands (February to March, 1996)
in 41 hauls. Notothenioid juveniles were found in 30 hauls carried out in waters with a depth of 87 ... in 11 hauls operated at some distance from the shelf, in the offshore waters with a depth of 275 ... -1780m (average 1006m). Notothenioid juveniles never caught with bathypelagic fish species in all hauls ... found in 15 hauls, and its estimated value of an arithmetic mean was 4±19 ind./t (0 to 140 ind./t) of ...
Meeting Document : WG-EMM-96/52 : Author(s): Ichii, T., Kawaguchi, S., Naganobu, M.
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A simulation study of krill fishing by an individual Japanese trawler
, and their performance investigated in response to six different ways in which the overall krill ... biomass in a 600 n. mile square oceanic sector might decline by 50%. In most cases there is essentially no ... response of the index, or a response rather smaller in relative magnitude than the biomass decline. Catch ... statistics collected at present (centred primarily on catch per fishing time) are of low utility in detecting ...
Meeting Document : SC-CAMLR-VI/BG/38 : Author(s): D.S. Butterworth (United Kingdom)
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Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia
are the two main land-based krill Euphausia superba consumers in the northern Scotia Sea. Using a ... -based (animal tracking and diet analysis) techniques, we examined variability in the foraging ecology of ... from acoustic surveys was low during summer, increasing in autumn. During the breeding season, krill ... occurred in 80% of fur seal diet samples, with fish remains in 37% of samples. Penguin diets contained the ...
Meeting Document : WG-EMM-10/P07 : Author(s): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan