Résultats de la recherche
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Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries
Paper Title: Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in ... Australian sub-Antarctic trawl fisheries Abstract / Description: Estimates of age and growth were obtained ... McDonald Islands (Division 58.5.2) in 1992 and 1993. The range of estimated ages was 4 to 25 years. There ... maturity of M. carinatus was determined from 162 specimens collected during commercial trawl fishing ... . 10 (2003): 139–151 139 AGE, GROWTH AND SIZE AT SEXUAL MATURITY OF MACROURUS CARINATUS CAUGHT AS ... – esmee.vanwijk@aad.gov.au Abstract Estimates of age and growth were obtained from 156 Macrourus carinatus ... 1992 and 1993. The range of estimated ages was 4 to 25 years. There were no signifi cant differences ... sexes combined were: L∞ = 690 mm, K = 0.069 and t0 = -2.4. The size at sexual maturity of M ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Auteur(s): van Wijk, E.M., R. Williams and A.J. Constable
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Spatial and temporal distribution of krill Euphausia superba biomass in the Ross Sea (1989/90, 1994/95)
(east of longitude 180°), estimated during late spring and at the beginning of the austral summer in ... Abstract: The paper, based on the results of italian expeditions to the Ross Sea (December 1989 ... - Januar 1990 and November- December 1994), presents how is spatial and temporal distribution of krill ... December- January). The process of ice melting began in mid November, near Ross Ice Shelf (so called ...
Meeting Document : WG-EMM-97/53 : Auteur(s): Kalinowski, J., Azzali, M.
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Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
Paper Title: Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern ... Indian Ocean Abstract / Description: This paper provides an assessment of the distribution and abundance ... of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean (Divisions 58.4.1 and 58.4.3 ... ) based on results from a trawl survey in 1999. This is the first quantitative assessment of M. carinatus ... . 1995. Distribution and biology of five grenadier fish (Pisces: Macrouridae) from the upper and middle ... DISTRIBUTION AND ABUNDANCE OF MACROURUS CARINATUS ON BANZARE BANK IN THE SOUTHERN INDIAN OCEAN E.M. van Wijk ... 7050 Tasmania, Australia Abstract This paper provides an assessment of the distribution and ... abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean (Divisions 58.4.1 and 58.4.3 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Auteur(s): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
immigration from east of the study area. Krill sampled throughout the observation period were reproductively ... Abstract: Four successive surveys of the pelagic marine environment were conducted over a 100-by ... were collected to describe the thermohaline structure, the distribution of phytoplankton biomass and ... primary productivity, the distribution and demography of krill, and the foraging patterns of krill ...
Meeting Document : WG-CEMP-90/11 : Auteur(s): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)
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Observation of seabirds in the Southern Ocean in 1988/89
Paper Title: Observation of seabirds in the Southern Ocean in 1988/89 Abstract / Description ... : This paper examines the numerical and species distribution of birds in the sub-Antarctic area of the ... Southern Ocean to the south of 60°S. Thirty minute observations were made daily during daylight hours at 8 ... ports of call. Maps summarize the distribution of 14 bird species as well as of the individual species ... . Abundance was less to the east of the South Sandwich Islands and did not exceed 50 birds during a shift ... South Sandwich Islands. In the Indian Ocean sector the blue petrel only was observed to the east of 75 ... . Large flocks of up to 20 birds were common in summer to the east of 74°W. The number observed at one ... Islands (Figure 7). This species was regularly sighted to the east of 200 W, near the ice-edge and in the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Auteur(s): Vagin, A.V. and V.V. Popov
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
predators of fished species Abstract / Description: Managing fisheries to achieve ecosystem objectives is ... for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ... of fished species, and (iii) what approaches could be considered for achieving the conservation ... objectives? The approach proposed here takes account of uncertainties in knowledge of the structure of ... biodiversity and the potential consequences of loss of biodiversity to the overall ecological function of ... APPROACH TO MANAGING FISHERIES: ACHIEVING CONSERVATION OBJECTIVES FOR PREDATORS OF FISHED SPECIES A.J ... ser 10s objetivos de conservaci611 para los depredadores de las especies explotadas? y (iii) jcu5les ... cuenta las incertidumbres producidas por la falta d e conocimiento sobre la estructura de los ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Auteur(s): Constable, A.J
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Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Paper Title: Quantification of Southern Ocean phytoplankton biomass and primary productivity via ... / Description: This paper reviews Southern Ocean primary productivity within the framework of satellite remote ... sensing and the development of food-web models. The satellite ocean colour (chlorophyll) data record is ... Temperature Scanner (OCTS), the Seaviewing, Wide Field of view Sensor (SeaWiFS), the Moderate Resolution ... from a bloom trailing east off the north- ern tip of the Antarctic Peninsula. The Prydz Bay Table 2 ... composition and species succession East Antarctica: Cosmonaut Sea to Prydz Bay In the Austral summer of 2005 ... /06, an interdis- ciplinary survey was conducted of East Antarctica (30°E to 80°E). The suite of ... mixed towards the surface from below. East Antarctica: Prydz Bay to Ross Sea Across the region of ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Auteur(s): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
Paper Title: Krill biomass in Area 48 and Area 58: recalculations of FIBEX data Abstract ... estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ... those cruises (seven out of the nine considered) that used an echosounder frequency of 120 kHz. File ... ; coefficient of variation (%) = CV]. Ship/Strata Walther H erwig (East) Walther H erwig (South West ... km = TL; area in km2 = AREA· lOS; density in gm-2 = pA; biomass in tonnes = Bw. 106; coefficient of ... : RECALCULATIONS OF FIBEX DATA P.N. Trathan1, D.J. Agnew2, D.G.M. Miller3, J.L. Watkinsl, I. Everson1, M.R ... held in the BIOMASS database were used to provide estimates of mean density and biomass for the ...
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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Estimating the biodiversity of Planning Domain 5 (Marion and Prince Edward Islands – Del Cano – Crozet) for ecoregionalisation
18th May, 2012 at the headquarters of TAAF (French Southern and Antarctic Territories). It followed a ... meeting on the northern part of Planning Domain 5, which was held in South Africa in 2008, organized and ... funded by WWF South Africa and known as Del Cano 1. The intention of the CCAMLR workshop was to study the ... ecological values and the use of the marine environment and to identify possible threats that might occur in ...
Meeting Document : WG-EMM-12/33 Rev. 1 : Auteur(s): P. Koubbi (France), R. Crawford (South Africa), N. Alloncle, N. Ameziane, C. Barbraud, D. Besson, C.-A. Bost, K. Delord, G. Duhamel (France), L. Douglass (Australia), C. Guinet (France), G. Hosie (Australia), P.A. Hulley (South Africa), J. O. Irisson (France), K.M. Kovacs (Norway), R. Leslie, A. Lombard, A. Makhado (South Africa), C. Martinez (France), S. Mormede (New Zealand), F. Penot (France), P. Pistorius (South Africa), P. Pruvost (France), B. Raymond (Australia), E. Reuillard, J. Ringelstein (France), T. Samaai (South Africa), P. Tixier (France), H.M. Verheye (South Africa), S. Vigetta (France), C. von Quillfeldt (Norway) and H. Weimerskirch (France)
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Status of the Polish FIBEX acoustic data from the West Atlantic
Paper Title: Status of the Polish FIBEX acoustic data from the West Atlantic Abstract ... acoustic target strength estimates of krill (SC-CAMLR, 1991a). This analysis indicated that the acoustic ... densities of krill in the oceanic parts of the Drake Passage were low (3 g m-2); however, the results also ... indicated that spatial variability was important and that parts of the shelf to the north of the South ... , minimum net densities were actually present by the middle of March (Siegel, 1988), therefore it is ... STATUS OF THE POLISH FIBEX ACOUSTIC DATA FROM THE WEST ATLANTIC P.N. Trathan British Antarctic Survey ... the West Atlantic were analysed using recent acoustic target strength estimates of krill (SC-CAMLR ... , 1991a). This analysis indicated that the acoustic densities of hi l l in the oceanic parts of the ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 125–132 : Auteur(s): Trathan, P.N., J. Kalinowski and I. Everson