Search results
-
Biotopic and spatial distribution of krill Euphausia superba Dana (Crustacea, Euphausiacea) length groupings in the Atlantic sector of Antarctic in summer 1984 and 1988
Abstract: Three basic length groupings of krill were identified with the clustering analysis on ... the basis of the data of two complex surveys carried out in the western Atlantic sector of Antarctic ... in summer 1984 and 1988. The large-length grouping is biotopically associated with the waters of the ... southern branch of the Antarctic Circumpolar Current (ACC). The middle-length grouping and the small-length ...
Meeting Document : WG-EMM-04/27 : Author(s): V.V. Lidvanov, A.V. Zimin, K.E. Shulgovsky (Russia)
-
Modelling Southern Ocean krill population dynamics: biological processes generating fluctuations in the South Georgia ecosystem
Abstract: Variability is a key feature of the pelagic ecosystems of the Southern Ocean and an ... important aspect of the variation is fluctuation in the abundance of krill, the major prey item of many of ... the higher predators. Direct impacts of variability in the large-scale physical environment, such as ... changes in ocean circulation, have been suggested as the main factor generating the observed fluctuations ...
Meeting Document : WG-EMM-01/53 : Author(s): E. Murphy and K. Reid (United Kingdom)
-
Reproductive analysis of Dissostichus mawsoni in SSRU 5841C-a for the exploratory longline fishery in 2012/13 of Korea
Abstract: In the Division 58.4.1 there are two stocks of Dissostichus mawsoni, which is ... utilize stocks properly, especially relate to reproductive mechanism. Therefore, the Korean scientists ... analyze the reproductive ecology of Dissostichus mawsoni in SSRU 58.4.1C-a based on the histological ... season. The ratio of female of D. mawsoni collected in SSRU 58.4.1C-a during the 2012/2013 season was ...
Meeting Document : WG-SAM-13/27 : Author(s): I.J. Yeon, J.S. Lee, Y.J. Kwon, M.A. Jeon, S.K. Choi, K.J. Seok, D.W. Lee, K.Y. Ku and H.J. Kim (Republic of Korea)
-
COMPARISON OF THE PRECISION OF DIRECT VERSUS AGE LENGTH KEY METHODS OF ESTIMATING CATCH-AT-AGE PROPORTIONS
) of fish in the catch, determining the ages in the sample, and calculating proportions in each age ... class. This “direct” method can be replaced by the age length key (ALK) method if there are in addition ... to the SRS of ages, which have also been measured for length (the age-length sample), a large SRS ... where fish are measured only for length and tallied by length bins (the LF sample). The ALK method uses ...
Meeting Document : WG-FSA-09/22 Rev. 1 : Author(s): S.G. Candy (Australia)
-
Biomass abundance and distribution of fish in the Kerguelen Islands’ zone (Division 58.5.1)
(September-October 2006) off the Kerguelen Islands (division 58-5-1), the northern part of the Kerguelen ... Plateau. The sweep-area method was used in the range 100 and 1000 m with random stratified stations of ... bottom trawling. Estimations of biomass and abundance are provided for eight commercial species. The ... total biomass reaches 245 000 tonnes and the Patagonian toothfish Dissostichus eleginoides produces half ...
Meeting Document : WG-FSA-07/16 : Author(s): G. Duhamel and M. Hautecoeur (France)
-
Population structure of icefish (Champsocephalus gunnari) in the South Georgia area (Antarctic)
Abstract: The living conditions of Champsocephalus gunnari in the eastern, western shelf areas of ... South Georgia and at Shag Rocks are different. The length-age structure of C.gunnari groupings ... inhabiting the areas at Shag Rocks and South Georgia is characterized with the lack of fish below 11 cm in ... length and older than 6-7 years (10-11 years in the South Georgia area) and considerably lower number of ...
Meeting Document : WG-FSA-04/40 : Author(s): Zh.A. Frolkina and I.A. Trunov (Russia)
-
Proposal for the creation of a Domain 1 MPA Expert Group
research and fishing activities. The complexity of its management is reflected in the numerous discussions ... held at the Commission, the Scientific Committee and the Working Groups during recent years. These have ... included the increase of the catch level of krill (CM 51-07), the development of a risk assessment and the ... feedback management strategy, and lately the designation of a Marine Protected Area. In addition ...
Meeting Document : SC-CAMLR-XXXVI/19 : Author(s): Delegations of Argentina and Chile
-
Developing integrated assessments for Dissostichus eleginoides based on the CCAMLR precautionary approach
Abstract: This paper describes a possible method for implementing the precautionary approach in ... current biomass and age structure. Consideration is given to its application to the assessment of ... Dissostichus eleginoides in Division 58.5.2. CASAL and GYM are key elements in the implementation described in ... this paper but the methodology is laid out in such a way that alternative software solutions could be ...
Meeting Document : WG-FSA-SAM-05/16 : Author(s): I. Ball and A.J. Constable (Australia)
-
Preliminary investigations into a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region
Abstract: In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... status for Antarctic toothfish in the Amundsen Sea Region (ASR- Subarea 88.2 SSRUs 88.2C-H) and ... noted that the assessments were unable to fit the patterns in the recaptures of tagged fish seen in SSRU ... 88.2H. As a consequence, WG-SAM requested further runs be carried out with emigration estimated in the ...
Meeting Document : WG-FSA-14/57 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
-
EFFECT OF STERN-SETTING TUNNEL ON THE SINK RATE OF INTEGRATED WEIGHT LONGLINE (IWL)
stern-setting tunnel, and the proposed experimentation to evaluate this method's effect on the sink ... rate of demersal integrated weight longline (IWL). The stern setting tunnel consists of an elongated ... steel tube, built in to the longliner during a dry-dock refit. The tube angles downwards from where the ... line exits the baiting machine, which is positioned in the aft section of the stern setting deck, to ...
Meeting Document : WG-FSA-08/38 : Author(s): I. Hay and G. Robertson (Australia)