Search results
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Analysis of the toothfish fishery indices in Subareas 88.1 and 88.2 when using different types of longline gears
period of 2010-2016 are considered. Taking into account the different number of hooks at longlines sets ... used at the fishery, the catch indices were normalized to 1000 hooks. The effect of the gear types ... Abstract: The indices of exploratory toothfish fishery in the Subareas 881 and 88.2 for the ... (autoline, spanish, trotline) on the observed spatial-temporal variability of CPUE toothfish (kg/1000 hooks ...
Meeting Document : WG-FSA-17/56 : Author(s): S. Kasatkina
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Mean circulation and hydrography in the Ross Sea sector, Southern Ocean: representation in numerical models
Abstract: Three models were used to look at the Southern Ocean Ross Sea sector circulation and ... hydrography. Two were climate models of low (1°) to intermediate resolution (1/3°), and one was an operational ... and monthly variability aspects of off-shelf circulation are consistently represented, and could imply ... seasonal gyral transports increase as the Antarctic Circumpolar Current transport decreases. Model flows at ...
Meeting Document : WG-EMM-10/P13 : Author(s): G.J. Rickard, M.J. Roberts, M.J.M. Williams, A. Dunn and M.H. Smith (2010)
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Preliminary analyses in support of the CEMP Review Workshop: serial correlations
-03/24. Serial correlation in biological indices occurred in 4, 10 and 33 % of the time series at ... the time series at alpha levels of 0.05, 0.10 and 0.20 respectively. Generally, serial correlation ... Abstract: As part of the preliminary analyses undertaken in preparation for the CEMP Review ... Workshop, the Secretariat has documented serial correlation in time series of CEMP indices. The values ...
Meeting Document : WG-EMM-03/27 : Author(s): Secretariat
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Preliminary observation about the possibility of Antarctic krill escapement from a trawl net
develop a method using LED lighting system at our laboratory for the purpose of filed observation of krill ... underwater video camera attached on the trawl net of Japanese commercial trawler Fukuei-maru (4,350.62 GT) in ... 2011. To avoid the influence of camera lighting on krill behavior, the observation was conducted during ... daytime. Few krill appeared to escape from posterior part of trawl net. When the trawl net caught dense ...
Meeting Document : WG-EMM-12/66 : Author(s): K. Fujita and S. Hasegawa (Japan)
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Effects of recruitment variability and natural mortality on Generalised Yield Model projections and the CCAMLR Decision Rules for Antarctic krill
. At the higher catches of the precautionary catch limit, populations based on recruitment vectors from ... ;vector of recruitments" input option to simulate the population dynamics of krill in the Antarctic ... Peninsula region (Subarea 48.1) under various assumptions. The annual proportions of krill less than 36 mm ... in length to the total captured in AMLR net samples in four sampling regions of the Antarctic ...
Meeting Document : WG-EMM-12/26 : Author(s): D. Kinzey, G. Watters and C. Reiss (USA)
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Status of the FIBEX acoustic data from the west Atlantic
to check the consistency of krill abundance estimates derived from different survey vessels. There is ... a good level of consistency between the results from four of the vessels, Itzumi, Dr Eduardo L ... Holmberg, Odysee and Walther Herwig. While there is an error factor due to the combination of data ... collected at 50kHz (Walther Herwig survey) with data collected at 120 kHz (all other vessels), it is ...
Meeting Document : WG-KRILL-93/31 : Author(s): P.N. Trathan and I. Everson (United Kingdom)
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Southern royal albatross Diomedea epomophora census on Campbell Island, 4 January–6 February 1996, and a review of population figures
Abstract: A census of breeding Southern Royal Albatross was undertaken at Campbell Island during ... the period 4 January to 6 February 1996 of the 1995-96 breeding season. A total of 7787 occupied nests ... was counted. Comparisons of different field census techniques and a measure of the rate of egg loss ... January-February 1995, much of which could be explained by some larger survey blocks being counted more ...
Meeting Document : SC-CAMLR-XVII/BG/13 : Author(s): Delegation of New Zealand
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Results from the 1998 bottom trawl survey of Elephant Island and the lower South Shetland Islands (Subarea 48.1)
, Chaenocephalus aceratus, Chionodraco rastrospinosus, and Lepidonotothen squamifrons. Estimates of length at ... Resources program in two major regions of the South Shetland Islands: Elephant Island and the lower South ... ogives were constructed for five species of finfish: Champsocephalus gunnari, Gobionotothen gibberifrons ... sexual maturity and length at first spawning are computed and compared with previous estimates and other ...
Meeting Document : WG-FSA-98/15 : Author(s): C.D. Jones (USA), K.-H. Kock and S. Wilhelms (Germany)
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Abundance of Antarctic fur seals in the South Shetland Islands, Antarctica, during the 1986/87 austral summer
Abstract: A survey of Antarctic fur seals (Arctocephalus gazella) in the South Shetland Islands ... recovery and recolonization of rookery sites following 19th Century commercial exploitation. Eleven fur ... seal pupping sites were identified, some of which had not previously been reported. The largest pupping ... sites were at Telmo Island and Cape Shirreff, Livingston Island, and at the Seal Islands, Elephant ...
Meeting Document : WG-CEMP-90/41 : Author(s): J.L Bengtson, L.M. Ferm (USA), T.J. Härkönen (Sweden) and B.S. Stewart (USA)
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Development of the acoustic survey database
, conductivity at depth, density estimate etc). The development of the trawl survey components has been reported ... submitted to CCAMLR. This database is ‘event-driven’ – i.e. each survey can be characterized by a series of ... events (eg trawl, CTD, acoustic etc) and each event has a set of measurements (eg amount caught ... developments to date, WG-FSA’s Subgroup on Fisheries Acoustics (WG-FSA-SFA) has discussed the possibility of ...
Meeting Document : WG-EMM-04/18 : Author(s): Secretariat