Résultats de la recherche
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A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia
Paper Title: A preliminary investigation of the possible effects of rhizocephalan parasitism on ... the management of the crab fishery around South Georgia Abstract / Description: Relatively high ... levels of infection by a rhizocephalan barnacle have been found in the population of the crab Paralomis ... the main effects of the parasite is to render infected animals sterile. Parasitism can therefore ... castrated and are therefore no longer part of the spawning stock (Hawkes et al., 1986a; Hoggarth, 1990 ... miles2) and there is no spatial information to indicate either sample location or the likely spatial ... %). I initially run the model with no harvest to obtain the equilibrium prevalence and spawning stock ... even when there is no harvest. For example, Figure 2 shows how the spawning numbers decline as the ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 175–192 : Auteur(s): Basson, M
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Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season)
Paper Title: Factors affecting the incidental mortality of seabirds in the Dissostichus ... eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season) Abstract / Description: This paper ... Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 during the 1995 season. The data was obtained ... from the fine-scale reports submitted by each vessel to its national fishing authority and supplemented ... type Mustad no. 24 used by FV Isla Camila during the 1995 season, followed by the Maruto no. 26 used ... one vessel which fished mainly near the Rhine Bank showed practically no mortality during hauls ... ), therefore the null hypothesis (that streamer lines have no effect on catch rates) is rejected ... observer reported no mortality (Zaitsev, 1995). The total number of birds killed, estimated using ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 79–91 : Auteur(s): Moreno, C.A., P.S. Rubilar, E. Marschoff and L. Benzaquen
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Catch per unit effort (CPUE) data from the early years of commercail krill fishing operations in the Atlantic sector of the Antarctic
Paper Title: Catch per unit effort (CPUE) data from the early years of commercail krill fishing ... operations in the Atlantic sector of the Antarctic Abstract / Description: Catch per unit effort (CPUE) data ... the period 1975/76 to 1987/88. Comparisons are carried out between subareas in single years, between ... years on a subarea and area basis, and between oceanic and shelf regions. Results show that the CPUE may ... significantly different to the one obtained for the South Georgia region. In 1978/79 there was no significant ... difference at all between the CPUEs of the various subareas. There is obviously no tendency for any subarea ... no clear picture can be drawn from the results of the comparisons. However, it is noteworthy that ... the 1977/78 CPUE data show no significant difference to any other year, although the average CPUE of ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 31–50 : Auteur(s): Siegel, V., V. Sushin and U. Damm
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
Paper Title: Effects of weather and sea-ice on the reproductive performance of the Adélie penguin ... at Edmonson Point, Ross Sea Abstract / Description: The breeding biology of the Adélie penguin ... (Pygoscelis adeliae) was studied at Edmonson Point, Victoria Land, during the 1999, 2001 and 2003 breeding ... females were significantly longer than in 1999 and 2001, which in turn delayed the mean departure date of ... Point CCAMLR Ecosystem Monitoring Program (CEMP) site (74°21’S 165°10’E) located on the shores of Wood ... Bay, 60 km north of the Italian station of Terra Nova Bay on the Victoria Land coast (Ross Sea ... temperature was about –18°C with dips to –32°C. Sea-ice Due to the topographical features of Wood Bay ... appreciate the logistic support of Terra Nova Bay expeditioners and of the Meteo-climatological Observatory ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Auteur(s): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
. There is some evidence for a decline in the abundance of krill in the 1980s, but no evidence of a ... Paper Title: Is current management of the Antarctic krill fishery in the Atlantic sector of the ... Southern Ocean precautionary? Abstract / Description: This paper explains the management of the Antarctic ... krill (Euphausia superba) fishery in the Atlantic sector of the Southern Ocean, and current knowledge ... Strait. There have been no reported catches in Subarea 48.4 (the South Sandwich Islands) since 1992 ... probability of the spawning stock biomass falling to 20% of the reference level at any time should be no ... decline between 1989 and 2011 (the last year of data analysed). Loeb and Santora (2015) show no ... 48.1, and Steinberg et al. (2015) conclude that there was no decrease between 1993 and 2013 in the ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Auteur(s): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins
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The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery
Paper Title: The foraging range of Adélie penguins – implications for CEMP and interactions with ... the krill fishery Abstract / Description: This paper presents a summary of the foraging locations of ... Adélie penguins, determined by satellite tracking, at seven widely-spaced breeding colonies along the ... feeding chicks regularly travelled up to 120 km offshore to the continental shelf and returned with krill ... , penguin, satellite tracking, Terra Nova Bay, CCAMLR INTRODUCTION The CCAMLR Ecosystem Monitoring ... the Bechervaise Island CEMP site travelled up to 120 km north to northwest from the colony in a V ... Davis remained within Prydz Bay, normally feeding within a 100-km radius and rarely reaching the ... Adelie penguins, there are no recorded major concentrations of E. stlperbn in the region. Foraging ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Auteur(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson
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Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited
Paper Title: Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny ... icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited Abstract / Description ... : The former fishing ground off Joinville–D’Urville Islands was revisited in the course of the Antarctic ... Expedition ANT XIX/3 by RV Polarstern in February 2002. Five hauls were conducted north of the two islands at ... were used. No information was available on pelagic trawls used to catch C. wilsoni off the bottom ... concentrations of C. wilsoni were continued in 1979/80 by the Werner Kube. No aggregations of fi sh were found ... aggregations were found and subsequently, no commercial fi shing continued (Gubsch, pers. comm.). The ... detected no concentrations of C. wilsoni and the fi shing effort was low. The USSR vessel Parallaks found ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Auteur(s): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina
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Interaction of marine mammals with the longline fishery around the Kerguelen Islands (Division 58.5.1) during the 1995/96 cruise
Paper Title: Interaction of marine mammals with the longline fishery around the Kerguelen Islands ... (Division 58.5.1) during the 1995/96 cruise Abstract / Description: The only interaction observed between ... longliners fishing for Patagonian toothfish (Dissostichus eleginoides) to the west of the Kerguelen Islands ... during the 1995/96 cruise and marine mammals occurred with the Antarctic fur seal (Arctocephalus gazella ... Capdeville (1996). RESULTS No killer whales (Orcinus orca) were observed close to the ship during ... setting and hauling. The presence of sperm whales was regularly noted although no interaction with ... matter of such concern that the vessels moved from this fishing area (SC-CAMLR, 1994). No such extreme ... vessel during its 1995/96 cruise and no interactions were observed. However, the presence of sperm ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 171–174 : Auteur(s): Capdeville, D
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
Paper Title: Notes on the use of virtual population analysis for stock assessment of the mackerel ... icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons ... Abstract / Description: Following on from the apparent failure of the CCAMLR Working Group on Fish Stock ... Assessment (WG-FSA) to satisfactorily assess in 1991 the status of the Champsocephalus gunnari population in ... . gunnari population in Subarea 48.3. Closure of the fishery in 1991/92 resulted in no commercial catch in ... the most recent year, and hence no terminal Fs for the VPA. This report presents notes on a reworking ... . 3.2 ADAPT Runs ADAPT runs 1 to 4 provided no satisfactory results. The constraint was set to its ... in Table 10, with residuals plotted in Figure 5. No attempt was made to re-run the analysis ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Auteur(s): Parkes, G.
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Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl
Paper Title: Krill distribution in the western Atlantic sector of the Southern Ocean during 1983 ... /84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs ... -Kidd midwater trawl Abstract / Description: In this paper we consider the results of three mesoscale ... surveys covering a wide area of krill distribution between the Antarctic Peninsula and South Georgia ... confirmed no log-normality of non-zero biomass values. Therefore, the estimate of a mean value and ... IN THE WESTERN ATLANTIC SECTOR OF THE SOUTHERN OCEAN DURING 1983184,1984185 AND 1987188 BASED ON THE ... Str. Kaliningrad 236000, Russia Abstract In this paper we consider the results of three ... mesoscale surveys covering a wide area of krill distribution between the Antarctic Peninsula and South ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Auteur(s): Sushin, V.A. and K.E. Shulgovsky