Resultados de la búsqueda
-
Use of biological data to inform bioregionalisation of the Southern Ocean
species-specific layers can then be used in bioregionalisation, for instance by classifying directly on ... these data constitute best available information at present, and should not be ignored in the ... unavailable but likely to become available in the near future, and advocate the use of ‘placeholder’ data ... layers built into the bioregionalisation process, to be replaced as better data becomes available. In ...
Meeting Document : WS-BSO-07/7 : Autor(es): M. Pinkerton, B. Sharp and J. Leathwick (New Zealand)
-
A method for inferring movement rates of fish from mark–recapture data
release and the recapture. In addition, the intensity of fishing effort (i.e. sampling) by location and ... distances approach. In addition, it also provides a way to generate a movement model that is parameterized ... required for the probability of recapture in a location to match the relative probability of catching an ... unmarked fish in that location. Clearly this may be related to the distance from the release point, but ...
Meeting Document : WG-FSA-05/66 : Autor(es): C. Wilcox (Australia)
-
Informe sobre la operación del B/P nasero Viking Sky durante Setiembre–Octubre del 2001: Atlántico sudoccidental (latitudes 37°–38° sur y 42° sur) Área estadística 41
Devincenzi in 1924, and it is usually found by fishing trawlers between 900 m and 1200 m of depth, along the ... Observer from DINARA on board. The ship looked for fishing zones both in uruguayan and international waters ... 86.00 cm The majority of the sampled individuals of both sexes were determined in the grade 2 of gonadic ... selectivity of the fishing traps were determined in 59 cm of fish length, as the minimum size captured. The ...
Meeting Document : WG-FSA-02/66 : Autor(es): O.D. Pin y H. Nión (Uruguay)
-
OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL
inner shelf whereas in the Indian-Pacific sectors krill prevail in the ocean within 200-300 km of the ... ACC as the season progressed. The retention of krill in moderately productive oceanic habitats is a ... key factor in their high total production. While growth rates are lower than those over shelves, the ...
Meeting Document : WG-EMM-08/P04 - Abstract : Autor(es): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
-
The relative by-catches of taxa associated with vulnerable marine ecosystems by autolines and Spanish longlines
Abstract: We reanalyzed data collected by the longline fishery in Subarea 88.1 to compare the ... with each gear type, we attributed this difference to a difference in the rate at which VME taxa drop ... greater than Spanish bycatch at all depths represented in our data. Limiting the use of Autolines, which ... are in more intimate contact with the sea floor than Spanish longlines, may decrease bycatches of VME ...
Meeting Document : WG-FSA-13/41 : Autor(es): T. Gerrodette and G.M. Watters (USA)
-
Semi-automated software to count and validate Adélie penguin colonies from aerial photographs
Antarctica. The software is written in MATLAB ®, is freely available and is deployed to users as a graphical ... select the breeding penguins within the colony. Interactive features are provided in the software that ... allow an operator to add penguins omitted in the pattern recognition process, delete falsely-detected ... breeding penguins singly or in groups, selectively process a defined area, and record the running census ...
Meeting Document : WG-EMM-14/54 : Autor(es): S.J. McNeill, K.J. Barton and P.O’B. Lyver (New Zealand)
-
Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2014–2015
first time since records began (in 1991), surveys at Signy Island (operational during summer only; 24 ... Edward Point, with no marine mammal entanglements observed at Signy Island or Goudier Island. In total ... , 132 items of marine debris were found in association with seabird colonies at Bird Island, most ... commonly in association with wandering albatrosses (88 items). Two incidences of entangled wandering ...
Meeting Document : SC-CAMLR-XXXIV/BG/27 : Autor(es): Delegation of the United Kingdom
-
Using predators and their prey to characterise the status of the marine ecosystem at South Georgia
status of marine predators might be used to inform ecosystem-based management approaches. In the ... managers must evaluate the applicable scale of these predator indices if they are to be used in management ... decisions; (iii) variability in the krill population is evident at different spatial and temporal scales ... relationships may break down as data series change in duration. We note that relationships that describe ...
Meeting Document : WG-EMM-16/28 : Autor(es): P. Trathan, S. Fielding, S. Hill, M. Belchier and J. Forcada
-
Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2015–2016
(operational 15 November 2015 to 4 March 2016), which is the highest number since recording began in 2010/11 ... entanglements observed at Signy Island or Goudier Island. In total, 127 items of marine debris were found in ... association with seabird colonies at Bird Island, most commonly in association with wandering albatrosses (65 ...
Meeting Document : SC-CAMLR-XXXV/BG/21 : Autor(es): Delegation of the United Kingdom
-
Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2016/17
(operational 13 November 2016 to 1 March 2017), which is the highest number since observations began in 2010/11 ... marine mammal entanglements were recorded at Goudier Island. In total, 131 items of marine debris were ... found in association with seabird colonies at Bird Island, most commonly in association with wandering ...
Meeting Document : SC-CAMLR-XXXVI/BG/35 : Autor(es): C. Waluda