Resultados de la búsqueda
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Foraging range and at-sea locations of female Antarctic fur seals, Cape Shirreff, Livingston Island, from 1999–2002
from their colony to feeding areas hours to days offshore, returning periodically to suckle. Outside of ... survival but that of her young. As such, a fundamental component to understanding the survival and ... reproductive success of fur seals is to identify habitat preferences. Our objective was to characterize the ... distribution and range of foraging females rearing pups at Cape Shirreff, Livingston Island, Antarctica. We ...
Meeting Document : WG-EMM-02/53 : Autor(es): M.E. Goebel, S.N. Sexton and D.P. Costa (USA)
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Estimating density and biomass of Antarctic krill around South Sheltland Islands using the 2-dB difference method
Abstract: The distribution and abundance of krill aggregation inhabiting the Subarea 48.1, which ... includes the Elephant Island peripheries and the west and south of the South Shetland Island, were ... 2016 and 38 and 200 kHz from March 6 to 14 in 2017. Krill were collected by the commercial middle trawl ... biomass of Antarctic krill around South Sheltland Islands using the 2-dB difference method Microsoft Word ...
Meeting Document : WG-EMM-17/08 : Autor(es): S.-G. Choi, K. Lee and D. An
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
estimates are near the middle to upper end of the range of ages at maturity for skates worldwide. Author(s ... Abstract: X-rays of vertebral half-centra, and X-rays and transmitted white light examination of ... caudal thorns, were used to estimate the ages of Amblyraja georgiana from the Ross Sea. Caudal thorns ... , producing uncertain age estimates. Furthermore, annual deposition of thorn bands has not been validated. The ...
Meeting Document : WG-FSA-04/29 : Autor(es): M.P. Francis and C. Ó Maolagáin (New Zealand)
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Interannual variations of water thermochaline structure on South Georgia Island, South Orkney Islands and Shetland Islands shelves
intermediate cold layer. In some years of this type (1 97 1, 1972, 1978, 1982) the layer had positive ... Abstract: Basing on the analysis of major water mass boundaries and their thermochaline ... area of South Orkney Isls and Shetland Isls in January-February since 1970. Three types of years have ... been singled out for the area of South Orkney Isls. The first type was characterized by presence of ...
Meeting Document : WG-EMM-00/34 : Autor(es): P. Chernyshkov, V. Shnar, O. Berezhinsky and I. Polischuk (Russia)
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Factors affecting the growth rate and mass at weaning of Antarctic fur seal pups at Bird Island, South Georgia
Abstract: We studied the influence of sex of pup, maternal age, birth date of pup, number of ... foraging trips, and the mean duration of both foraging trips at sea and nursing visits ashore on the growth ... and mass at weaning of pups of Antarctic fur seals (Arctocephalus gazella) during the austral summers ... of pup and mean duration of foraging trips. Growth rates of male and female pups varied considerably ...
Meeting Document : WG-CEMP-93/09 : Autor(es): N.J. Lunn, I.L. Boyd, T. Barton and J.P. Croxall (United Kingdom)
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DEVELOPMENT OF A METHODOLOGY FOR DATA QUALITY ASSESSMENT
biological sampling data from a fishing trip. In particular these measures aim to quantify the prevalence of ... Abstract: Measures are developed which aim to summarise the quality of fishing event, catch, and ... position or time reporting errors, the diversity of catch, the extent to which catch data follow Benford ... 's Law for the distribution of the first significant digit, whether length-frequency data have been ...
Meeting Document : WG-SAM-08/13 : Autor(es): D.A.J. Middleton and A. Dunn (New Zealand)
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Do Adélie penguin fledgling weights provide an index of prey availability?
to two assumed proxies of prey availability: breeding success and foraging trip duration. Concordance ... between the two proxies was apparent when considering guard stage foraging trip durations but this was not ... the end of the breeding season were more strongly correlated with later foraging trips than with ... earlier trips. We interpret these results as an indication of variable resources between the guard and ...
Meeting Document : WG-EMM-05/21 : Autor(es): L. Emmerson, C. Southwell and J. Clarke (Australia)
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Estimating density and biomass of Antarctic krill (Euphausia superba) around South Shetland using the 2-dB difference method
Abstract: The distribution and abundance of krill aggregation inhabiting the Subarea 48.1, which ... includes the Elephant Island peripheries and the west and south of the South Shetland Island, were ... collected by the commercial middle trawl fishing vessel. The data were processed and analyzed following ... D. An Title: Estimating density and biomass of Antarctic krill (Euphausia superba) around South ...
Meeting Document : SG-ASAM-18/08 : Autor(es): S. Choi, K. Lee and D. An
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Review of cetacean depredation in CCAMLR statistical subareas
observed throughout the CCAMLR management area. Loss of fish through depredation can cause financial loss ... Abstract: Depredation, the removal of fish from longlines by large marine predators, has been ... assessments through the underestimation of total mortality resulting from fishing and depredation combined. In ... other subareas the problem is known but not currently addressed. The areas in which the establishment of ...
Meeting Document : WG-SAM-15/27 : Autor(es): M. Soeffker (United Kingdom) and P. Tixier (France)
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Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea 48.2) during 1989/90
north-east of the region. The fleet was observed drifting with the current together with krill ... Paper Title: Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea ... 48.2) during 1989/90 Abstract / Description: The results of an analysis of haul-by-haul catch ... statistics from the Soviet krill fishing fleet during the 1989/90 season (sample of 3 614 hauls for the ... major current flowing towards the north-east of the region. The fleet was observed drifting with the ... CCAMLR Science, Vol. 5 (1998): 51-62 DISTRIBUTION OF ... . Sushin Atlantic Research Institute of Marine Fisheries and Oceanography (AtlantNIRO) 5 Dmitry Donskoy ... St. Kaliningrad 236000, Russia Abstract The results of an analysis of haul-by-haul catch ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 51–62 : Autor(es): Sushin, V.A