Résultats de la recherche
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
Exclusive Economic Zones: an assessment of depredation levels Abstract / Description: Interactions between ... whales. These two species, alone or in co-occurrence with each other, were observed in 71% of the 1 308 ... two species, alone or in co-occurrence with each other, were observed in 54% of the 6 262 longlines ... monitored. Interactions were observed in all fishing areas. The effect of depredation was assessed by ... 11 to 19) (Figures 1a and 1b). In this paper, depredation is defi ned as the loss of longline ... EXCLUSIVE ECONOMIC ZONES: AN ASSESSMENT OF DEPREDATION LEVELS C. Roche and C. Guinet CEBC-CNRS, UPR 1934 ... or in co-occurrence with each other, were observed in 71% of the 1 308 longlines set. In the ... in co-occurrence with each other, were observed in 54% of the 6 262 longlines monitored ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Auteur(s): Roche, C., C. Guinet, N. Gasco and G. Duhamel
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
Paper Title: The sensitivity of multiple output statistics to input parameters in a krill ... Drake Passage. The model analysed here required 2 311 input values for each of four scenarios and ... the status of predator groups more than they affected statistics indicating the status of the target ... recruitment through pre-recruit mortality. A parameter mediating the effect of a forcing function on krill ... provide advice to CCAMLR on the spatial allocation of the Antarctic krill catch limit for the Scotia Sea ... required 2 311 separate inputs for each of four alternative scenarios (Table 1). The word scenario here ... means a mathematical representation of a hypothesis about ecosystem dynamics consisting of a model and ... its inputs (sensu Rademeyer et al., 2007). This reference set of alternative scenarios brackets key ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews
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The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
Paper Title: The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land ... , Antarctica, and its overlap with the krill fishery Abstract / Description: The foraging ranges of six female ... point. Birds feeding chicks also made journeys of one to two days ranging up to 12 km after 17 January ... when the sea became ice free to the coast. Concentrations of krill, Euphausia superba, which have in ... WG-CEMP-92/36 THE FORAGING RANGE OF ADELIE PENGUINS AT ... . Kerry, J.R. Clarke and G.D. Else* Abstract The foraging ranges of six female and four male Adelie ... . Birds feeding chicks also made journeys of one to two days ranging up to 12 km after 17 January when ... the sea became ice free to the coast. Concentrations of krill, Euphausia superba, which have in the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Auteur(s): Kerry, K.R., J.R. Clarke and G.D. Else
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An assessment of CCAMLR measures employed to mitigate seabird mortality in longlining operations for Dissostichus eleginoides around South Georgia
Paper Title: An assessment of CCAMLR measures employed to mitigate seabird mortality in ... the effectiveness of measures employed by CCAMLR to mitigate seabird mortality. Following an agreement ... between the Governments of the United Kingdom and Chile, a UK observer was placed aboard a Chilean ... specifications was also used, except during an experiment that attempted to assess the effectiveness of the ... CCAMLR Science, Vol. 5 (1998): 217-230 AN ASSESSMENT OF ... seabirds and the effectiveness of measures employed by CCAMLR to mitigate seabird mortality. Following an ... agreement between the Governments of the United Kingdom and Chile, a UK observer was placed aboard a ... assess the effectiveness of the streamer line in mitigating incidental mortality of seabirds during ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 217–230 : Auteur(s): Ashford, J.R. and J.P. Croxall
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By-catch of fish in longline catches off the Kerguelen Islands (Division 58.5.1) during the 1995/96 season
Paper Title: By-catch of fish in longline catches off the Kerguelen Islands (Division 58.5.1 ... ) during the 1995/96 season Abstract / Description: By-catches of fish taken during a commercial fishing ... species were identified, of which the grenadier Macrourus carinatus, the skates Bathyraja eatonii and B ... at the limit of their bathymetric range. An abundance index was used to show bathymetric and ... editing of the English version of the paper. REFERENCES CCAMLR Secretariat. 1995. Catches in the ... BY-CATCH OF FISH IN LONGLINE CATCHES OFF THE KERGUELEN ISLANDS (DIVISION 58.5.1) DURING THE 1995196 ... d'ichtyologie generale et appliquee 43 rue Cuvier, 75231 Paris Cedex 05, France Abstract By-catches of fish ... /96 season were analysed. Eleven species were identified, of which the grenadier Macrot~rus ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 175–193 : Auteur(s): Duhamel, G., P. Pruvost and D. Capdeville
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Attribtuion of acoustic echoes to squid in the south Atlantic
Paper Title: Attribtuion of acoustic echoes to squid in the south Atlantic Abstract / Description ... : During a research cruise of the British Antarctic Survey ship RRS James Clark Ross in February 1996, more ... than 2 000 individuals of the ommastrephid squid, Martialia hyadesi, were caught in a single haul made ... the analysis of acoustic data gathered during this haul and a survey of the immediate vicinity, in ... Zone in CCAMLR Subarea 48.3. This paper describes the analysis of acoustic data gathered during this ... effect of aspect and swimming speed on TS, and in the last paper in the series compare their latest ... echoes thought to be caused by M. hyadesi in this paper corresponds very well with the appearance of ... ATTRIBUTION OF ACOUSTIC ECHOES TO SQUID IN THE SOUTH ATLANTIC C. Goss, P. Rodhouse, J.L. Watkins and A.S ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Auteur(s): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
Paper Title: Long-term trends in the foraging patterns of female Antarctic fur seals at South ... Georgia Abstract / Description: The number of feeding trips to sea made by female Antarctic fur seals ... during lactation may reflect the relative availability of local prey resources. Experimental work ... utilizing tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... -TERM TRENDS IN THE FORAGING PATTERNS OF FEMALE ANTARCTIC FUR SE!\LS AT SOUTH GEORGIA* 1 J.L ... . Bengtson (USA) Abstract The number of feeding trips to sea made by female Antarctic fur seals during ... lactation may reflect the relative availability of local prey resources. Experimental work utilizing ... tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected as ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Auteur(s): Bengtson, J.L.
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An assessment of toothfish in Subarea 48.3 using CASAL
Paper Title: An assessment of toothfish in Subarea 48.3 using CASAL Abstract / Description: This ... paper presents an assessment of the stock of toothfish around South Georgia (Subarea 48.3) using the ... CASAL stock assessment software (Bull et al., 2005). Detailed attention is given to the incorporation of ... as much of the available tuning data as possible, as well as a whole range of assessment ... – r.hillary@imperial.ac.uk Abstract This paper presents an assessment of the stock of toothfish around South ... data and estimates of historical recruitment from surveys around South Georgia. This paper presents ... described in the manual (Bull et al., 2005). For the purposes of this paper, it is simply necessary ... This paper presents an assessment of the South Georgia stock of Patagonian toothfish (Dissostichus ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 65–95 : Auteur(s): Hillary, R.M., G.P. Kirkwood and D.J. Agnew
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Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf
Paper Title: Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on ... the Ross Sea shelf Abstract / Description: This paper summarises knowledge of the distribution and ... relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf (defined here as the ... continental shelf out to the edge of the shelf break at about 600–800 m depth). The focus is on D. mawsoni ... , New Zealand Abstract This paper summarises knowledge of the distribution and relative abundance of ... the overlap between the distribution of D. mawsoni and its predators. An earlier draft of this paper ... ), where much of the existing data were reviewed (SC-CAMLR, 2009). The purpose of this paper is to ... most likely to occur. It should be noted that a paper providing a more com- prehensive analysis of the ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Auteur(s): Hanchet, S.M., S. Mormede and A. Dunn
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Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery
Paper Title: Significant conservation benefits obtained from the use of a new fishing gear in the ... practically eliminated depredation of fish by killer whales (Orcinus orca) and sperm whales (Physeter ... macrocephalus). The performance of this fishing technique with regard to seabird mortality and depredation by ... the implementation of the modification. The number of seabirds killed in 2002 was 1 542 compared to ... , in the Gulf of Alaska: research needs and approaches to mitigation. Working Paper for the Workshop ... Significant conServation benefitS obtained from the uSe of a neW fiShing gear in the chiLean Patagonian ... net sleeve that is placed on secondary vertical lines, has practically eliminated depredation of fish ... by killer whales (Orcinus orca) and sperm whales (Physeter macrocephalus). The performance of this ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 79–91 : Auteur(s): Moreno, C.A., R. Castro, L.J. Mújica and P. Reyes