Resultados de la búsqueda
-
Seals: Trophic modelling of the Ross Sea
crabeaters reach one year of age. Sexual maturity is reached in 2.5-6 years, with females reaching maturity ... ). The crabeater seal dives to 20–30 m typically at night (Shirihai 2002) although in winter, at 67oS ... 1985; Testa & Siniff 1987). Weddell seals in McMurdo Sound have been studied for over 30 years (e.g ... . Innes, S.; Lavigne, D.M.; Kovacs, K.M. 1987. Feeding rates of seals and whales. Journal of Animal ...
Document : Site Section: Publications
-
Scientific Abstracts 2001
). Unpublished papers must not be cited without written permission of the author(s). Addresses of principal ... from recent years, with 20 entanglements reported over winter and 22 during the summer breeding ... * 1 000 m-3, which is among the highest values for the past 20 years. The high krill abundance and ... two species showed consider- able overlap in both years, but the concentrations of foraging activity ... explain the 5-year lag as 5 years is the average age of recruitment to the summer breeding population ...
Document : Site Section: Publications
-
SC-CAMLR-SSP/9
parameters presented in Table 1. Catch data were available for two years (1991 and 1992), which could be ... = research survey duration (in years) R = recruitment t r = age at recruitment t m = terminal age L ... that age distribution derived from the model is not significantly different from the one obtained by ... . Acufta S. and A. Rivera O. ...................................................................... 223 ...
Document : Site Section: Publications
-
Métodos estándar del Programa de Seguimiento del Ecosistema de la CCRVMA
taken to check the nest one to two days after the sitting bird has been marked with dye. A clean ... : ANALYTICAL METHODS: 1. After one person has counted an entire colony, 30 randomly selected subsamples ... not have eggs. On the day when one third of the nests (i.e. a total of 30 across all three sites ... Squirrel, may make one pass at 1 500 feet above ground level, but if more passes or loitering is necessary ...
Document : Site Section: Publications
-
Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in Subarea 88.2
the northern area for only one or two years based on tagging data (WG-SAM-14/27). As fishing effort ... are thought to comprise a single stock and are currently managed with two catch limits: one for ... (Figure 2). In SSRUs 882C–G, there was a distinct mode at about 60–80 cm, meaning that in years when ... ) 30 (0) Russia Chio Maru No. 3 90 (2) 101 (1) Gold Gate 44 (16) Palmer ...
Document : Site Section: Publications
-
Scientific Abstracts 2003
and Management). Unpublished papers must not be cited without written permission of the author(s ... breed for the first time when aged about three years. From 1994/95–2002/03, pairs fledged on average ... Edward Island (46°38'S 37°57'E). Two breeding colonies of Antarctic fur seals were located on the ... -EMM-03/20 Modern mean monthly SST and SST anomalies off South Georgia during recent years (based on ... mature one year earlier than in the south. They have a much shorter life span and die after they have ...
Document : Site Section: Publications
-
Scientific Abstracts 1994
be cited without written permission of the author(s). Addresses of principal authors are given for ... between 30° and 80°E. During the course of this work several tasks were performed, including the analysis ... derived distributions of animal sizes, a technique is developed for acoustically delineating the two ... temperature along 90°W, 120°W, 170°W and 175°E. WG-Krill-94/30 Change of sex ratio of krill (Euphausia ... comprehensive longterm estimates are available for the area south of 65°S between 60 and 80°E. Preliminary ...
Document : Site Section: Publications
-
Scientific Abstracts 2000
Management). Unpublished papers must not be cited without written permission of the author(s). Addresses of ... wearing neck collars of man-made debris. One ad- ditional sighting was of an animal that had been ... (English). Finfishing in the Southern Ocean began more than 30 years ago at South Georgia and the ... Kerguelen Islands for more than 10 years. Catches rarely exceeded 12 000 tonnes in one season. The fishery ... , Division 58.4.1 can be divided into two approximately equal-sized subdivi- sions: 80–115°E and 115–150°E ...
Document : Site Section: Publications
-
Scientific Abstracts 2006
be cited without written permission of the author(s). Addresses of principal authors are given for ... Antarctica (30–80°E) in January–March 2006. T. Jarvis, E. van Wijk, N. Kelly, S. Kawaguchi and S. Nicol ... . Recruitment indices were calculated for one-year- old (R1) and two-year-old krill (R2), showing high values ... Indian Ocean sector of the Southern Ocean 30–80°E) in January–March 2006, which was designed around an ... Aurora Australis, and consisted of 11 meridional transects, between 30° and 80°E. On each transect a ...
Document : Site Section: Publications
-
Australia: Relevant references for the Patagonian toothfish (Dissostichus eleginoides) stock assessment in Division 58.5.2
catch-at-age data and two years of survey abundance-at-age data. Document WG-SAM-09/07, CCAMLR, Hobart ... . (2010) Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation ... catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a ... mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark ...
Document : Site Section: Meetings