Résultats de la recherche
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OTOLITH CHEMISTRY REFLECTS FRONTAL SYSTEMS IN THE ANTARCTIC CIRCUMPOLAR CURRENT
Deep Water; and 4) Ba/Ca to nutrient production and mixing. In the Polar Frontal Zone, meanders or ... Antarctic regions, and 57 to 83% to areas along the Patagonian Shelf. These results indicate that otolith ...
Meeting Document : WG-FSA-08/P04 - Abstract : Auteur(s): J.R. Ashford, A.I. Arkhipkin and C.M. Jones
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Sea Ice Biota: Trophic modelling of the Ross Sea
Description / Abstract: A supporting document to the CCAMLR Science paper: M.H. Pinkerton, J.M ... (1.01 MB). CCAMLR Science, 17: 1–31 ... birds (Kaufmann et al. 1995). Krill are also known to be attracted to the concentrations of food ... may be large enough (chains 10–30 m long) to serve as food for juvenile krill since ... in the water column can be enhanced up to 28- and 24-fold, respectively and abundances increased by ... stimulating primary and secondary production below sea ice seems to be somewhat variable. For example ...
Document : Site Section: Publications
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New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands
the inner shelf has enabled a new cohort of fish to be identified each year. However, annual ... outer shelf. The three-year cycle observed previously seems to be related to the maturation stage of ... the inner shelf has enabled a new cohort of fish to be identified each year. However, annual ... outer shelf. The three-year cycle observed previously seems to be related to the maturation stage of ... from the situation around South Georgia but seems to be comparable to the catch history around the ... be identified as being located on the northeastern part of the inner shelf. However, no information ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Auteur(s): Duhamel, G
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
-Krill has recommended that a revised TS!1ength relationship should now be used (SC-CAMLR, 1991b) for ... to set the precautionary catch limits, SC-CAMLR has requested that the FIBEX data should be re ... calculate kriU biomass by statistical subareas within Area 48 (West Atlantic) but should also be extended ... olmberg could not be used. The original FIBEX acoustic echocharts were therefore examined by Dr A ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Auteur(s): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
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SC-CAMLR-SSP-2
/82 (SLOSAR- CZYK et al., 1984). Evaluated s tock s i ze of 8 134 t (table 1) may be an ... ncrease in catches in 1982/83 to 128 ,000 t can thus partly be explained by the recruitment of one or ... OUEHKA EHOMACC~ P~EHHX 3AilACOB B PAfiOHE 0-BA D~HAH rEOPrHH B HHBAPE-~EBPA.JlE 1985 r. IlPE ... effet sur le repeuplement des reserves. OUEHKA EHOMACCH PHEHHX 3AilACOB B PAHOHE 0-BA ~~HAH rEOPrHH ...
Document : Site Section: The Organisation
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Fishery Report: Dissostichus eleginoides (TOP) Heard Island (Division 58.5.2)
selectivity and because the longline fishery occurs in deeper water where toothfish tend to be larger. 5 ... likely to be biased by changes in factors such as the characteristics/number of vessels in the fishery ... Ocean sector there appears to be no distinction between fish at Heard, Kerguelen, Crozet or Marion ... ). The survey design was consolidated in 2001 and the distribution of stations to be undertaken during a ...
Document : Site Section: Publications
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Fishery Report 2014: Dissostichus eleginoides Heard Island (Division 58.5.2)
appear to be genetically homogenous (Appleyard et al., 2004) and distinctly different from those at more ... from <1 500 m and longline from >1 500 m depth. The assessment model estimated virgin biomass B0 ... median B0 of 108 586 tonnes (92 263–132 167; 95% CI), with the median spawning stock biomass (SSB) at ... 0.65 (0.59–0.71) of B0. Annual estimates of SSB status relative to virgin SSB and YCS are given in ...
Document : Site Section: Publications
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Food and feeding of the mackerel icefish (Champsocephalus gunnari) around South Georgia in January/February 1991
mackerel icefish were found to be widely dispersed over the upper part of the shelf (Everson et al., 1991a ... ) in 3 877 fish which were randomly collected on 44 out of 87 stations sampled during the survey ... (Figure 3). It cannot be excluded that part of this variation may be due to variations in sample size (60 ... lower than in 1977/78 (Figure 3), a season when krill biomass around the island was found to be very ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 15–23 : Auteur(s): Kock, K.-H., I. Everson, S. Campbell, G. Parkes, Z. Cielniaszek and J. Szlakowski
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Age-structured production model for toothfish at South Georgia
Abstract: The ASPM model used by Agnew and Kirkwood (2004, WG-FSA-04/82) has been modified ... selectivity parameters allowed to be estimated on an annual basis the fits are substantially improved. However ... , by allowing all parameters to be estimated in this way the model is over-parameterised and regularly ...
Meeting Document : WG-FSA-SAM-05/18 : Auteur(s): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)
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Volume 24: CCAMLR. 2012. Statistical Bulletin, Vol. 24 (2002–2011). CCAMLR, Hobart, Australia.
24 should be amended accordingly. The total catch of all species in 2010/11 is 197 820 tonnes ... species and area/subarea/division .......................... 87 Table 8 Catch and effort by species and ... this is the case, the values given in the present volume should be considered to be more accurate ... . This volume of the Statistical Bulletin should be referenced as: Hardcopy version CCAMLR. 2012 ...
Document : Site Section: Publications