Search results
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Preliminary study on reproduction in Champsocephalus gunnari from Subarea 48.3, Dr Eduardo Holmberg survey, February/March 1994
Abstract: A preliminary histological analysis on the ovarian development in Champsocephalus ... commonly used. Oocytary resorption processes were observed during ovarian maturation. In some cases the ... ovaries presented few atretic oocytes; in others a generalized regression was found. In the southwest ... portion of the South Georgia shelf, 50 % of the ovaries exhibited a pre-reproductive regression stage ...
Meeting Document : WG-FSA-94/28 : Author(s): G.J. Macchi and E.R. Barrera-Oro (Argentina)
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Revisiting krill ageing method using eyestalk cuticles
promise in the determination of the absolute age of krill is that of Kilada et al. (2017), which involves ... point of contention among crustacean researchers. Since the interpretation of growth bands in thin ... Abstract: The development of a consistent and reproducible ageing method for krill is critical ... for improving the precautionary management of krill fisheries. The only method to date that has shown ...
Meeting Document : WG-EMM-2019/45 : Author(s): S. Kawaguchi, T. Barnes, N. Waller, B. Farmer, D. Hayes, R. Kilada, C. Reiss, G. Zhu, B. Krafft, A.-L. Agnalt, T. Ichii and T. Matsuda
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Classification of Southern Ocean krill and icefish echoes using Random Forests
of echograms and analysis of differences in mean volume backscattering strengths (S V; dB re 1 m-1) measured ... with an overall estimated accuracy of 95 %. Minimum S V, mean aggregation depth (m), mean distance from the seabed ... . Random forests are an objective means for target identification, and could facilitate the inclusion ... and analysis of differences in mean volume backscattering strengths (SV; dB re 1 m-1) measured at two or more ...
Meeting Document : WG-EMM-16/23 : Author(s): N. Fallon, S. Fielding and P. Fernandes
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BEACH DEBRIS SURVEY SIGNY ISLAND, SOUTH ORKNEY ISLANDS 1996/97
lowest recorded since the surveys began in 1990, both in terms of weight and number of items. This ... which was brought into force by CCAMLR in 1996, almost half (49%) of the plastic items found at Signy ... in 1996/97 was the lowest ever recorded, the considerable number of packaging bands still being ... , and comply with, regulations preventing the disposal of debris in the Southern Ocean. Author(s ...
Meeting Document : CCAMLR-XVI/BG/6 : Author(s): Delegation of the United Kingdom
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Analisis de los censos de Arctocephalus gazella efectuados en el sitio de especial interes cientifico no. 32, Isla Livingston, Antarctica
results show that the population size of this species, in the study area increased during 26 years, form ... that future censuses carry out in the Cape Shirreff also include the breeding colonies of San Telmo ... in Viña del Mar (Chile) in August 1992, the information about four complete censuses on the Antarctic ... Island, because these animals are part of the same population. San Telmo Island is a part of the SSSI No ...
Meeting Document : WG-CEMP-93/24 : Author(s): A. Aquayo L. and D. Torres N. (Chile)
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Educational observer on board fishing vessels in Brazil
/obligation on the usage of these measures is in force. Author(s): Delegation of Brazil Title: Educational ... Abstract: We inquired several social aspects of two Brazilian crews working in pelagic longline ... order to investigate the social and professional character of each crew member. Overall, our results ... show a low level of studies among these professionals. We suggest the implementation of a new concept ...
Meeting Document : SC-CAMLR-XXV/BG/20 : Author(s): Delegation of Brazil
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FISHING INDUSTRY POLLUTION OBSERVATIONS AND ASSOCIATED MARINE MAMMAL ENTANGLEMENT RECORDS AT SOUTH GEORGIA, SUMMER 1996/97
-26 December 1996. The photographs (originals in colour) illustrate the diversity of debris, most ... Abstract: From various locations on or near the mainland of South Georgia, between November 1996 ... . Of the fur seals five (42%) were female (three adult, two juvenile) and seven (58%) were male (one ... . Marine debris was collected from a 1 km stretch of beach on the south coast of South Georgia between 24 ...
Meeting Document : CCAMLR-XVI/BG/26 : Author(s): Delegation of the United Kingdom
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Management plan for Site of Special Scientific Interest (SSSI) No. 1
; • allow visits for management purposes in support of the aims of the management plan. Author(s ... Abstract: Management at Cape Royds aims to: • avoid degradation of, or substantial risk to, the ... values of the Area by preventing unnecessary human disturbance to the Area; • allow scientific research ... on the ecosystem, and in particular on the avifauna in the Area, while ensuring protection from over ...
Meeting Document : WG-EMM-02/59 : Author(s): Secretariat
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A study on calibration for commercial echosounder using bottom backscattering strength in Antarctic
fishing vessel to use it in estimating biomass of Antarctic krill (Euphausia superba). The method of ... calibration was to analyze the difference between the bottom backscattering strength of the commercial ... , was examined to verify the calibration result. The analysis result confirmed the possibility of ... calibration by bottom backscattering strength, since the proportion of krill swarm signals within 2 dB < S ...
Meeting Document : SG-ASAM-17/P01 : Author(s): S.-G. Choi, H. Lee, K. Lee and J. Lee
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Zooplankton studies during international krill synoptic survey in CCAMLR Subarea 48.1 in 2019 onboard Ukrainian fishing vessel More Sodruzhestva
Abstract: As a part of the international krill synoptic survey, the National Antarctic Scientific ... studies in the Bransfield Strait (CCAMLR subarea 48.1) during “More Sodruzhestva” voyage from 13 to 18 th ... of November 2018. The stratified samples were done at the same stations as for krill hydroacoustic ... survey in order to map vertical distribution, abundance and species composition of zooplankton, mostly ...
Meeting Document : WG-EMM-2019/64 : Author(s): L. Samchyshyna, E. Dykyi and G. Milinevsky