Resultados de la búsqueda
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Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)
between them being at about 90°E. The western stock may be centred around Prydz Bay, and appears to be of ... Paper Title: Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions ... operating off the coast of East Antarctica (30°E–150°E; FAO/CCAMLR Divisions 58.4.1 and 58.4.2) since 2003 ... . An experiment run from 2005 to 2008 required the tagging of toothfish as a prerequisite for ... mouth of Prydz Bay (SSRU 5842E). Although there has been no fishing in SSRU 5841B, the area ... side of SSRU 5841C, the north- ern part of SSRU 5841E and the western part of SSRU 5841G. No D ... very low. Densities increase to the east of Division 58.4.2, particularly in SSRU 5842E off Prydz Bay ... Current (ACC) at this point, away from its close continental position to the north of Prydz Bay and from ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Autor(es): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán
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Prey monitoring surveys: a discussion of the characteristics necessary in prey surveys
Paper Title: Prey monitoring surveys: a discussion of the characteristics necessary in prey ... surveys Abstract / Description: The CCAMLR Ecosystem Monitoring Programme requires information on prey ... distribution to relate to changes in predator demography. The paper discusses the constraints imposed on such ... site as a primary monitoring site. The sea areas close to the remalnlng sites are relatively free ... equivalent to 100 km and are centred on the study sites indicated in Table 1 of the report of the CCAMLR ... with chick weight at fledging. c. Prydz Bay It is not clear from the Report of the Working Group ... precisely where the predator monitoring sites are to be established. It is assumed that the main focus ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 377-391 : Autor(es): Everson, I.
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Surface water circulation in krill fishing areas near the South Shetland Islands
Paper Title: Surface water circulation in krill fishing areas near the South Shetland Islands ... deployed in shelf and oceanic waters to the north of the South Shetland Islands. Each buoy was deployed ... with a drogue attached at a depth of 30 m to assess flow patterns at the depth range where krill tended ... to be most abundant. The buoys were tracked using the ARGOS satellite positioning system. Based on ... then reversed its direction to west and became trapped in Barclay Bay on the northern side of ... where there is no successful krill spawning and that the stocks there rely on recruitment from the ... study shows no evidence for a loop drift, i.e. a drift which would lead to the Scotia Sea containing a ... SURFACE WATER CIRCULATION IN KRILL FISHING AREAS NEAR THE SOUTH SHETLAND ISLANDS T. Ichii and M ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Autor(es): Ichii, T. and M. Naganobu
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Seabird interactions with longlining operations for Dissostichus eleginoides at the South Sandwich Islands and South Georgia
Paper Title: Seabird interactions with longlining operations for Dissostichus eleginoides at the ... involving the setting and hauling of longlines to catch the toothfish Dissostichus eleginoides around the ... -chinned petrels and black-browed albatrosses were present during day hauling operations. No incidental ... of the seabirds present presumably originated from South Georgia populations; however wandering and ... height from the aft gantry on the port side, the main line was more than 1 cm thick, there were no ... first mate after the end of each haul. Ashford et a1 RESULTS Incidental Mortality No ... coming on board. No data are available on the proportion of hauled hooks still retaining bait. The ... sampling between sites and the paucity of data for certain times of day, the only data allowing realistic ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 143–153 : Autor(es): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
Paper Title: Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the ... Bay) at 38, 120 and 200 kHz in May 2007 and in February 2009. Overall ex situ TS–TL relationships were ... -larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... continental slope and shelf of the Ross Sea at depths from 30 to 120 m, during the Italian expeditions of 1997 ... de las de los peces postlarvales y juveniles. No obstante, el TS experimental ex situ como in situ ... knowledge on the acoustic properties of P. antarcticum and thus there is no acoustic estimation of their ... Ancona Bay, Italy (43°37'N 13°28'E), near the RV Dallaporta, on which an acoustic laboratory was ... (which ranged from –0.5 to –1°C). There is cur- rently no information regarding the dependence of fish ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Autor(es): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
phytoplankton distribution off the northern South Shetland Islands Abstract / Description: In December/February ... 1990/91 a survey was conducted by RV Kaiyo Maru in the vicinity of the South Shetland Islands and ... Elephant Island. The main objective of the survey was to investigate the mechanisms responsible for the ... concentration of krill and to estimate krill biomass in the area surveyed. Krill biomass estimation was done by ... in the shelf area moved east, then reversed and was trapped in Barclay Bay on the northern side of ... eddies may provide some spatially-stable sites for retention of krill swarms, leading to the formation ... IN RELATION TO WATER MOVEMENT AND PHYTOPLANKTON DISTRIBUTION OFF THE NORTHERN SOUTH SHETLAND ... conducted by RV Kaiyo Maru in the vicinity of the South Shetland Islands and Elephant Island. The main ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Autor(es): Ichii, T., H. Ishii and M. Naganobu
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Temporal variability and the interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
Paper Title: Temporal variability and the interrelationships between CEMP parameters collected on ... Ecosystem Monitoring Program (CEMP) parameters and the interrelationships between these parameters were ... . The low degree of correlation between parameters collected before incubating nest counts with those ... collected after brooding nest counts reinforces the notion that events occurring during the hatching period ... indicator species at a number of sites in the CCAMLR Convention Area. At the inception of CEMP a suite of ... contribution to the review, as this is one of the sites where the param- eters have been measured over a long ... edgling mass was given the lowest rank for data analysis as no chicks survived to fl edge that year ... birds measured at breeding sites are biased by the tendency for only those birds who obtained suffi ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 75–90 : Autor(es): Emmerson, L.M., J. Clarke, K.R. Kerry and C. Southwell
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
Paper Title: Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and ... selected colonies of penguins distributed around the coasts of the South Shetland and South Orkney Islands ... distribution in Subarea 48.2, probably as a result of more variable hydrographic conditions. About 50% of the ... catch in Subarea 48.1 from December to March was taken within 40 km of the coast, and 90% within 80 km ... for food in the vicinity of their breeding sites where these are situated on land. The aim of this ... ). Chicks and adults probably continue to be restricted to areas close to the breeding sites into March (J ... consume krill around the study sites. Details of the consumption by squid and whales is unknown in the ... DANA) CATCHES IN THE SOUTH SHETLANDS AND SOUTH ORKNEYS DJ. Agnew* Abstract A set of concentric ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 287–303 : Autor(es): Agnew, D.J.
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
the north and south. Those compiling data on numerical density (no. m –2 or no. m –3) need to allow ... functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract / Description: There is ... overview is provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance ... , distribution and feeding. Second, advice is provided on the uses, strengths and limitations of zooplankton data ... the most commonly used zoo- plankton sampler, but no single net type or mesh size is suitable to ... zooplank- ton in the literature or in databases might include numerical densities (no. ind. m–2) but often ... mesozooplankton abundance at a coastal site in the Ross Sea (Foster, 1989; Knox et al., 1996). Macro ... Email – aat@pml.ac.uk *New address: Plymouth Marine Laboratory Prospect Place, The Hoe Plymouth PL1 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Autor(es): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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An iterative model to construct an age/length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
Paper Title: An iterative model to construct an age/length key to assess the age composition of a ... sampled from the same population. If such sampling is not possible the estimates of the age distribution ... could be biased. By using an iteration algorithm it is possible to overcome this limitation. The age ... composition of catch for Dissostichus eleginoides was obtained with the application of a single age/length key ... sampled from the same population. If such sampling is not possible the estimates of the age distribution ... could be biased. By using an iteration algorithm it is possible to overcome this limitation. The age ... composition of catch for Dissostichus eZeginoides was obtained with the application of a single age/length ... key to the monthly length distribution using the non-linear model (Hoenig and Heisey, 1987). We found ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 11–20 : Autor(es): Robotham, V. H. and Z. Young U.