Search results
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On the intensity of sampling krill trawl catches
). In the process of receiving the necessary consensus for this endorsement, SC-CAMLR requested that (a) studies ... be discerned (e.g., length-with-age). At present, and in the interests of both statistical rigour and ... stages; • for most purposes a minimum sample size of at least 100 animals/trawl is necessary to obtain ... Paper Title: On the intensity of sampling krill trawl catches Abstract / Description: This paper ... uses actual krill length-frequency data in an attempt to address the problem of the determination of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Author(s): Miller, D.G.M.
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Distribution of salps near the South Shetland Islands during austral summer, 1990/1991 with special reference to krill distribution
potential reasons for the relatively low abundance of E. superba at the stations where salps were present in ... Abstract: Distribution and biomass of salps and Antarctic krill (Euphausia superba) were ... 556 mgC•m-3 and was greatest at a station in the Bransfield Strait in late December 1990. Salp biomass ... was lower than that of E. superba. Two species of salps; Salpa thompsoni and Ihlea racovitzai were ...
Meeting Document : WG-EMM-95/54 : Author(s): Terazaki, M., Ichii, T., Kawaguchi, K., Nishikawa, J., Ishii, H., Naganobu, M.
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CCAMLR’s next steps to stop IUU fishing
for the effective implementation of those enhanced port State measures by developing countries. At the ... Convention Area, undermining the intrinsic values of CCAMLR and of the Antarctic Treaty. In spite of the ... package of Conservation Measures on IUU fishing adopted by CCAMLR, there are still significant steps that ... CCAMLR Members can take individually and collectively to eliminate IUU fishing in the CCAMLR Area. At ...
Meeting Document : CCAMLR-XXX/BG/22 : Author(s): Submitted by ASOC
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Diel vertical distribution of Antarctic krill around the South Shetland Islands in February 2019 and its potential effect on biomass estimation
Abstract: To address the potential effect of DVM behavior on krill biomass estimates, diel ... vertical distribution of krill swarms around the South Shetland Islands in Subarea 48.1 were analyzed based ... survey. Results show that more krill swarms were found in shallower depth at night than during daytime ... , while 16.5 % compared to 5.7 % of the corresponding total NASC value (m 2 n.mile-2) integrated for ...
Meeting Document : SG-ASAM-2019/05 : Author(s): X. Wang, X. Yu, J. Zhang and X. Zhao
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Acoustic data analysis and models of krill spatial distribution
biomass estimate. The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales ... used in three descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in ... space, semivariogram (spatial autocorrelation of krill biomass) and the frequency distribution of krill ... smaller than 1 km the spectrum appears to lose its power significantly. The semivariance of biomass does ...
Meeting Document : SC-CAMLR-VII/BG/25 : Author(s): United States of America
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The survivorship of rays discarded from the South Georgia longline fishery
the line at the sea surface, so as to maximise their chances of survival. Results from this experiment ... Paper Title: The survivorship of rays discarded from the South Georgia longline fishery Abstract ... / Description: Post-haulage survival experiments were conducted on 95 Raja sp. anon. cut off longlines at the ... season in Subarea 48.3. Capture depth had a consistently significant influence on the mortality of skates ... be cut from the line at the sea surface, so as to maximise their chances of survival. Results from ... level), making use of the pres- ence of scientifi c observers on board commercial vessels fi shing at ... only one skate at a time would be placed in a tank, with a maximum of eight skates being tanked at ... any one time. At the time of placement of each skate into the experimental tank, the following data ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Author(s): Endicott, M. and D.J. Agnew
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
Paper Title: Age determination of Notothenia gibberifrons from the South Shetland Islands ... Notothenia gibberifrons specimens collected at two localities near the South Shetland Islands (Low I. and ... Potter Cove, 25 De Mayo/King George I.). Samples consisted of small and medium sized fish (total length ... scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... workshop held in Moscow in July 1986, and at the annual Scientific Committee meetings. As a result of the ... * were obtained at two localities of South Shetland Is. (Figure 1) according to following detail ... of the species. Our samples at Low I. were taken offshore, while Potter Cove is a fjord (shallow ... 10 years and from 5 to 13 years, respectively. Comparison of mean length at certain age groups ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Author(s): Barrera-Oro, E.
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Proposal to continue the time series of research surveys to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea in 2013
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... endorsed a proposal to carry out this work once the fishery had closed at the end of the 2011/12 season ... meeting of WG-SAM (Hanchet al. 2012). In this paper we provide a proposal to continue this time series ... . The objectives of this second survey of the time series are as follows: (i) To carry out the second of ...
Meeting Document : WG-SAM-12/28 : Author(s): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2016
) further improved and extended by Germany, inter alia in the light of the suggestions made at WG-EMM-16 ... in these documents represents at present best available science. Author(s): Delegation of Germany ... Abstract: The Delegation of Germany has submitted the scientific background and justification for ... the development of a marine protected area in the Weddell Sea planning area. In accordance with the ...
Meeting Document : SC-CAMLR-XXXV/01 Rev. 1 : Author(s): Delegation of Germany
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Assessment of stone crab (Lithodidae) density on the South Georgia slope using baited video cameras
to the baits of which Paralomis formosa was the most abundant. Using arrival rate at baits ... Abstract: During January 2000 a baited video camera system was deployed fifteen times at depths ... of 719-1518 m around the sub-Antarctic island of South Georgia. Four species of lithodid (Anomura ... , predictions of odour plume size and observations of walking speed the abundance of the stone crab Paralomis ...
Meeting Document : WG-FSA-03/77 : Author(s): M.A. Collins, C. Yau, F. Guillfoyle, P. Bagley, I. Everson, I.G. Priede and D. Agnew (United Kingdom)