Search results
-
Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf
la répartition et l'abondance relative de la légine antarctique (Dissostichus mawsoni) sur le ... plateau de la mer de Ross (par définition, le plateau continental jusqu'à la bordure, à environ 600–800 ... être le plus important et, de ce fait, que les effets sur l'écosystème seront le plus probables. La ... localisés d'eaux profondes au large de la baie Terra Nova, de l'île de Ross et au sud de l'unité de ... been taken mainly in depths greater than 800 m from three localised fishing grounds of deep water off ... Terra Nova Bay, Ross Island, and in the south of small-scale research unit (SSRU) 881L (adjacent to the ... in the southern Ross Sea were sub-adult and maturing fish, typically ranging from 60–130 cm in length ... available, there is no evidence for a northward contraction in the range of D. mawsoni over the course of ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Author(s): Hanchet, S.M., S. Mormede and A. Dunn
-
Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 kHz and 120 kHz
kHz, les intensites de retrodiffusion etaient constamment de 7 dB plus elevees quIa 38 kHz; cette ... d'experimentation, doit donc etre attribuee a des differences reelles dans la reponse acoustique moyenne a ces deux ... frequences. Les resultats concordent bien avec de recents travaux experimentaux sur la reponse acoustique ... conversion de la reponse acoustique de 120 kHz-a-50kHz utilise a l'Atelier acoustique Post-FIBEX de 1984 ... Paper Title: Measurements of differences in the target strength of Antarctic krill (Euphausia ... superba) swarms at 38 kHz and 120 kHz Abstract / Description: Differences in the target strength of adult ... differences in the mean back-scattering strength of swarms simultaneously insonified at these two frequencies ... in studies off the South Orkneys and Elephant Island in March 1990. Back-scattering strengths at 120 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Author(s): Hampton, I.
-
Fish stock assessment survey in Subarea 48.3
. Resume Description d'une campagne d'evaluation des poissons demersaux aux environs de la Georgie du ... Sud, sous-zone 48.3 de la CCAMLR. Precisions sur la position des chalutages, les taux de capture et ... la composition en taille des captures. 11 est revele que le stock existant de l'une des especes ... comparaison aux resultats de la saison 1989/90. D'autres especes ne paraissent pas presenter une reduction ... Paper Title: Fish stock assessment survey in Subarea 48.3 Abstract / Description: A demersal ... fish survey in the vicinity of South Georgia, CCAMLR Subarea 48.3, is described. Details are given of ... important commercial species in the area, Champsocephalus gunnari, is shown to have undergone a major ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Author(s): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski
-
Areas of seabed within selected depth ranges in the South-West Atlantic and Antarctic Peninsula regions of the Southern Ocean
sous forme de tableau pour les sous-zones de la FAO: 48.1 (Est), 48.1 (Ouest), 48.2, 48.3, 48.4, 48.5 ... renseignements detailles ont ete presentes pour les subdivisions 50, 51, et 52 de la sous-zone 48.3. Resumen ... , 48.3, 48.4, 48.5 Y 88. Se dieron areas tot ales y areas de mar para estas categorias. Las areas ... . Se presento informacion detallada adicional para las subdivisiones 50, 51 Y 52 de la sub-area 48.3 ... Paper Title: Areas of seabed within selected depth ranges in the South-West Atlantic and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 49-73 : Author(s): Everson, I.
-
Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
de malla fina, metodos hidroacusticos y caIculos te6ricos. Al comparar los resultados de la ... de campagnes AtlantNIRO de 1983 a 1990 dans la mer du Scotia. Une methodologie a ete developpee ... puis utili see pour determiner le taux de filtration du krill au travers du maillage et la nappe du ... effectues par un chalut de type 72/308. La capturabilite a ete calculee a l'aide de tabliers de protection ... Paper Title: Midwater trawl catchability in relation to krill and possible ways of assessing ... the basis of data obtained from AtlantNIRO expeditions from 1983 to 1990 in the Scotia Sea. A ... midwater trawls in the krill fishery indicates that the potential exists for this efficiency to be ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Author(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov
-
A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula
decreasing since 1988. Resume La CCAMLR utilise la capture totale de krill dans un rayon de 100 km autour ... chevauchement entre les secteurs d'alimentation potentiels des manchots et la repartition de la pGcherie de ... -predateurs. Le nouvel indice, qui reflete l'interaction fonctitsnnelle entre ces deux consommateurs de la ... la position des captures. L'analyse met en evidence le fait que le chevauchement de la pGche et des ... fishery in the South Shetland Islands and Antarctic Peninsula Abstract / Description: CCAMLR has been ... using the total catch of krill taken within 100 km of penguin colonies in their breeding season ... distribution of the krill fishery in Subarea 48.1 (South Shetland Islands). As this index has proven unsuitable ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Author(s): Agnew, D.J. and G. Phegan
-
Revised age and growth estimates for Antarctic starry skate (Amblyraja georgiana) from the Ross Sea
scenario is correct. Résumé Dans une étude précédente sur l’âge et la croissance de Amblyraja georgiana ... dans la mer de Ross, il est suggéré que ces raies ont une croissance initiale très rapide pendant ... présentons une autre interprétation de l’âge et de la croissance chez A. georgiana qui est radicalement ... différente de la version publiée. Les courbes de croissance générées en comptant les stries fines ... georgiana in the Ross Sea suggested that these skates initially grow very rapidly for about five years ... and growth in A. georgiana that is radically different from the published interpretation is presented ... . By counting fine growth bands in the caudal thorns instead of broad diffuse bands, growth curves have ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 211–220 : Author(s): Francis, M.P. and M.J. Gallagher
-
Trends in population size and breeding success at colonies of macaroni and rockhopper penguins, Marion Island, 1979/80–1995/96
soit due a la chance (P) sont indiquees dans chaque cas. Tableau 3: Resultats d'une analyse de ... performance of the two species are not the same. Resume Mesure a l'ile subantarctique Marion de la ... reussite annuelle de la reproduction des gorfous macaroni (Euclyptes clzrysolophus) de 1979/80 B 1995/96 ... macaroni etudiees, la plus grande a diminue de taille pendant la duree de la periode d'etude alors que les ... Paper Title: Trends in population size and breeding success at colonies of macaroni and ... penguin colonies investigated decreased in size over the study period, while the other two remained stable ... . The only significant relationship between inter-season trends in the number of pairs breeding at the ... period, while the other remained stable. Trends in the number of pairs breeding at the three rockhopper ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 89–103 : Author(s): Cooper, J., A.C. Wolfaardt and R.J.M. Crawford
-
Archival and satellite-linked data recorders
la conduite de plongee d'un animal. Les enregistrements peuvent etre recuperes de deux fa~ons ... fournissent que des statistiques recapitulatives qui peuvent etre assez breves. Vu la capacite de traitement ... limitee du systeme de satellite ARGOS, la plupart des enregistreurs relies a un satellite ne pourront ... registradores de datos disponibles actualmente para uso en la investigacion sobre animales marinos. Estos ... provides an overview of currently-available data recorders for use in research on marine animals. These ... behaviour. The records can be recovered in one of two ways: the data recorder must either be recovered ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Author(s): Hill, R.D.
-
Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area
peche commerciale, deja signal6 pour la periode de 1983-1990, est toujours apparent dans les captures ... regime alimentaire du cormoran antarctique (Phalncrocorax bransfieldensis) piscivore de la region des ... iles Shetland du Sud et de la peninsule antarctique cette d6cennie conforte ces resultats. La baisse ... 16 dernieres annees resulte tres vraisemblablement de la peche commerciale hauturiere menee dans ... Paper Title: Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons ... and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area ... continued at Potter Cove from 1991 to 1999, and at Harmony Cove, Nelson Island, in the austral summer of ... 1995/96. Still evident is the decline in trammel-net catches of fjord-dwelling Notothenia rossii and ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 43–52 : Author(s): Barrera-Oro, E.R., E.R. Marschoff and R.J. Casaux