Resultados de la búsqueda
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A GIS tool to assist in the planning and design of sample surveys of the abundance of colonial breeding species
Abstract: A GIS tool to assist in the planning and designing of surveys of colonial breeding ... developed to implement more complex and efficient designs. An example of its potential use is provided. In ... the example the tool is used to sample a population of Adelie penguins in the Holme Bay region of East ... Antarctica as might occur in a real a pilot survey, and the resulting sample densities used to predict the ...
Meeting Document : WG-EMM-05/25 : Autor(es): C. Southwell, R. Dreissen, S. Candy, G. McPherson and J. Clarke (Australia)
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Beached birds: a guide used by north pacific groundfish observers to identify seabirds incidentally caught in fisheries
Abstract: In the fall of 2002, the U.S. National Marine Fisheries Service (NMFS) purchased 300 ... vessels in the Bering Sea and Gulf of Alaska. This new guide replaces a dichotomous key on looseleaf paper ... of fishery observers to accurately identify seabirds as they come up in the sampled fishing gear ... collection at the NMFS North Pacific Groundfish Observer Program. A copy of Beached Birds is available in the ...
Meeting Document : WG-FSA-03/24 : Autor(es): T. Hass and S. Davis (USA)
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The direct impact of fishing and fishery-related activities on marine life in the CCAMLR Convention Area with particular emphasis on longline fishing and its impact on albatrosses and petrels – a review
Abstract: Finfishing started in the Southern Ocean more than 30 years ago at South Georgia and ... Iles Kerguelen. The fishery extended further south for a few years in the second half of the 1970' ... , in particular birds and mammals. With the exception of plastic package bands on some sub-Antarctic ... islands and in particular the impact of longlining on marine birds these effects have been minor, very ...
Meeting Document : SC-CAMLR-XIX/BG/11 : Autor(es): Delegation of Germany
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands 1999/2000
the number of fur seals arriving at Signy Island in 1999/2000 was the highest observed since ... entanglement surveys began in 1996/97. Data are compared with results from a parallel study undertaken at Bird ... decreased (by 42%) since 1998/99. Over the past four years, fluctuations in the incidence of entanglement ... been entangled in other areas, such as South Georgia, where fishing activity is higher. Fishing net was ...
Meeting Document : SC-CAMLR-XIX/BG/03 : Autor(es): Delegation of the United Kingdom
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Standardised estimates of D. eleginoides catches per effort in Subarea 48.3 using information for 1985/86–1990/91 seasons
tooth-fish in Subdivision 48.3 during 1986-199 1 is presented. The fishery was mainly carried out in ... catch per effort estimates for 1986-99 were standardize. The fishery efficiency in 1986-95 was ... approximately similar, while in 1996-99 it decreased sharply. It is shown that significance of such factors as a ... of D. eleginoides catches per effort in Subarea 48.3 using information for 1985/86–1990/91 seasons ...
Meeting Document : WG-FSA-00/33 : Autor(es): P. Gasiukov (Russia) and V. Bibik (Ukraine)
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Connectivity and population structure in Pleuragramma antarcticum
silverfish (Pleuragramma antarcticum) are distributed in independent, discrete populations in the Ross Sea ... populations: i) in the Ross Sea, ii) on the southern Antarctic Peninsula in Marguerite Bay and off Charcot ... (USA) and M. Pinkerton (New Zealand) Title: Connectivity and population structure in Pleuragramma ...
Meeting Document : WG-FSA-11/19 : Autor(es): J. Ferguson, J. Ashford, A. Piñones, J. Torres, W. Fraser, C. Jones (USA) and M. Pinkerton (New Zealand)
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CONVERSION FACTORS AND GREEN WEIGHT CALCULATION IN THE ANTARCTIC KRILL FISHERY
; The variation in reported conversion factors for similar reported products can be attributed to a ... number of reasons:.; o Differences in the method of processing the same products o Seasonal variation o ... conversion factor) Uncertainty in reported Conversion Factors does not necessarily lead to uncertainty in ... Clark, J., Peatman, T. Title: CONVERSION FACTORS AND GREEN WEIGHT CALCULATION IN THE ANTARCTIC KRILL ...
Meeting Document : TASO-09/06 : Autor(es): Moir Clark, J., Peatman, T.
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A multi-frequency method for improved accuracy and precision of in situ target strength measurements
accurately measure in-situ target strengths (TS) is dramatically enhanced (98.2-99.4%) by combining ... juxtaposed single-beam transducers. Both methods were utilized to extract in-situ TS measurements of ... Antarctic scatterers simultaneously at 38, 120, and 200 kHz. Differences in the resulting TS measurements ... provided information about the identity of constituents in a mixed species assembly. Author(s): Hewitt ...
Meeting Document : WG-EMM-97/24 : Autor(es): Hewitt, R.P., Soule, M.A., Demer, D.A.
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On the accuracy of the pellet analysis method to estimate the food intake in the Antarctic shag Phalacrocorax bransfieldensis
through the gastrointestinal tract of the otoliths of fish represented in pellets of the Antarctic Shag ... slightly decreased in February. These estimations, in general, are in line with those previously obtained ... of the pellet analysis method to estimate the food intake in the Antarctic shag Phalacrocorax ...
Meeting Document : WG-EMM-97/61 : Autor(es): Casaux, R.
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Preliminary results on by-catch of fish during krill fishery in March to May 1993 on the polish trawler M/T Lepus
of their goals was to determine the proportion of juvenile fish forms in krill concentrations. The ... -catch of juvenile fish in the krill fishery was small. and off South Orkney Islands there was no such by ... -catch at all in the samples collected. In both areas a small by-catch from the family Myctophidae was ... during krill fishery in March to May 1993 on the polish trawler M/T Lepus Approval: Approved ...
Meeting Document : WG-FSA-94/25 : Autor(es): Z. Cielniaszek and R. Pactwa (Poland)