Résultats de la recherche
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The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)
poorly understood with great uncertainty surrounding their trophic ecology and life histories. Recent ... undertaken if there is continued interest in the fishery. However, low market value and interest coupled with ... . 1894. Descriptions of new genera and species of crabs of the family Lithodidae, with notes on the ... distributed globally in the deep sea, with a few genera occurring inter-tidally at high latitudes in the ... poorly understood with great uncertainty surrounding their trophic ecology and life histories. Recent ... with the very high level of discarding are likely to render the fishery commercially unviable ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Auteur(s): Belchier, M., T. Peatman and J. Brown
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Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during the 1990/91 austral summer
with a low 3.7 g/m 2 (163000 tonnes) in the oceanic zone. Gravid females were nearly absent in the ... frontal zone, having a mean density of 23.9 g/m2 (411 000 tonnes), as contrasted with a low 3.7 g/m2 ... for adult and subadult krill (e.g., Siegel, 1988). As this area potentially overlaps with foraging ... ., 1991), although this paper deals only with research activities of the second leg. Leg 2 covered the ... 1991 (Figure 1). Transects ran in an offshore-inshore direction with 20 n miles between the transects ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 183–199 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
measures put in place by CCAMLR to date. These measures are re-examined in the light of new information ... and fish size, and a proposed new closed season from 1 March to 31 May. File: 04parkes.pdf ... are re-examined in the light of new information, and a strategy for the future protection of young ... combination of existing measures, including minimum mesh size and fish size, and a proposed new closed ... also pertinent following the introduction in 1998 of a new CCAMLR 'fishing year' (CCAMLR, 1998 ... -examined in the light of new information, and a strategy for the future protection of young fish and ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Auteur(s): Parkes, G.B
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Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77-1986/87
biomass density of C. gunnari stock. High biomass density appeared with 2-4 year intervals after ... the biomass density of C. ~ari stock. High biomass aensity appeared with ~year intervals after ... . Slosarczyk Sea Fisheries Institute, Gdynia, Poland 1. INTRODUCTION Beginning with the second half of ... this vessel as compared with a standard trawler of similar tonnage, engine power and trawl dimensions ... depth zone, separately in each statistical subdivision. This means that in comparison with our ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 185-211 : Auteur(s): Mucha, M. and W. Ślósarczyk
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A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
catches made. An MP with control parameter values specified is proposed for implementation based on the ... Meeting of the Management Procedure Workshop. Queenstown, New Zealand, April 2003: www.ccsbt.org/docs ... MP with control parameter values specified is proposed for implementation based on the results of ... decisions rest with South Africa, which sets an annual TAC. Brandão et al. (2002a) provide a brief account ... data (both catch-at-length distributions and CPUEs) to be generated which are compatible with past ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Auteur(s): Brandão, A. and D.S. Butterworth
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Modelling krill recruitment
other parameters consistent with the observed proportional recruitment parameters. A procedure is given ... for generating families of recruitment functions which are consistent with the statistical uncertainty ... method includes the calculation of natural mortality and other parameters consistent with the observed ... which are consistent with the statistical uncertainty in the observed recruitment parameters. Resume ... size over the range of interest, the recruitment is a random variable with constant mean and variance ... when the value for S is calculated with k ( t ) used in equations ( 5 ) and (6) set to Correcting ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 49–54 : Auteur(s): W.K. de la Mare
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
-larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... both ex situ and in situ with a mean difference <1.5 dB, although the differences between the ... ), some sizes of P. antarcticum could be confused acoustically with E. crystallorophias, but not with E ... experiments targeted at juveniles and post-larvae of P. antarcticum with a total length from 13 to 70 mm ... from 38 to 200 kHz, can predict the experimental TS measured both ex situ and in situ with a mean ... confused acoustically with E. crystallorophias, but not with E. superba. Résumé L'indice de réflexion (TS ... swimbladder have not been conducted over as large a range of species and sizes as that of fish with ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Auteur(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region
Meteor along the Antarctic Peninsula from 26 December 1989 to 14 January 1990. Results were compared with ... data of an identical survey with RV Polarstern in 1987/88. Seasonal variation between summer and winter ... January 1990. Results were compared with data of an identical survey with RV Polarstern in 1987/88 ... a more refined knowledge on distribution patterns and the variability with time. First attempts had ... population with an unknown age structure. 2. MATERIAL AND METHODS A net sampling survey for krill was ... (Figure 1) by a multiple RMT 8 net with a mesh size of 4.5 mm (Roe and Shale, 1979). Flow-meter data, net ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Auteur(s): Siegel, V.
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A preliminary assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea based on data from predators
been characterized by dramatically fluctuating annual catches and frequent switches to exploit new ... annual catches and frequent switches to exploit new target species. It is likely, therefore, that ... varias especies de albatros y del elefante marine del sur, y posiblemente otros vertebrados del oceano ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 479–480 : Auteur(s): Rodhouse, P.G.
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
roughy (Hoplostethus atlanticus) on the Chatham Rise, New Zealand. Can. J. Fish. Aquat. Sci., 49: 922 ... . This notifi cation followed the format of CCAMLR Conservation Measure 31/X. In keeping with the ... necessary to manage the target resource in a sustainable manner. Concomitant with the above developments ... unprecedented levels of illegal fi shing within the EEZ, along with unregulated fi shing in the adjacent ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Auteur(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller