Resultados de la búsqueda

1. Seasonal and interannual variation in foraging range and habitat of macaroni penguins Eudyptes chrysolophus at South Georgia

   is a key factor in interpreting their ecological role. We studied the foraging areas of the macaroni ... (male average = 572 km; female average = 376 km) in a north-westerly direction towards the Maurice Ewing ... -random and most were in a north-westerly direction. Variation, both intra- and inter-individual, in ...

   Meeting Document : WG-EMM-02/21 Text : Autor(es): K.E. Barlow and J.P. Croxall (United Kingdom)

2. Seasonal and interannual variation in foraging range and habitat of macaroni penguins at South Georgia

   is a key factor in interpreting their ecological role. We studied the foraging areas of macaroni ... ; female average = 376 km) in a north-westerly direction towards the Maurice Ewing bank; some individuals ... most were in a north-westerly direction. Variation, both intra- and inter-individual, in bearings of ...

   Meeting Document : WG-EMM-01/19 : Autor(es): K.E. Barlow and J.P. Croxall (United Kingdom)

3. Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets

   of the March krill population showed a regular increase from 1991 to 1993, fell to a minimum in 1994 ... length reflect failure of small krill to recruit into the population, producing a period of low krill ...

   Meeting Document : WS-AREA 48-98/15 : Autor(es): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)

4. Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011

   the average. Macrourid catches have been stable over recent years, with a fall in 2011. Skate catches ... were just below and just above average for 2010 and 2011 respectively. A notable increase in the catch ... returned in 2011 to a level more common in previous years, dominated by asteroids, anemones, ascidians and ...

   Meeting Document : WG-FSA-11/23 : Autor(es): G.B. Nowara, S.G. Candy and T. Lamb (Australia)

5. DEVELOPMENT OF RECOVERY PLANS FOR DEPLETED TOOTHFISH STOCKS IN THE INDIAN OCEAN SECTOR OF THE SOUTHERN OCEAN

   Division. For a range of scenarios, the Generalised Yield Model is then used to assess foregone yields and ... . The surveys should involve a mark-recapture program, estimation of catch rates in the main grounds for ... status, when the fishery could be re-opened. We recommend this strategy be used as a monitoring and ...

   Meeting Document : WG-FSA-09/44 : Autor(es): D.C. Welsford, A.J. Constable and J.P. McKinlay (Australia)

6. REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA

   associated with seabird colonies and animals contaminated with hydrocarbons at a number of sites, primarily ... the majority of debris items being fishing lines and hooks. A total of 49 cases of hydrocarbon soiling ... Measure 26-01. There is no evidence of a decrease in the occurrence of marine debris over the past 10 ...

   Meeting Document : WG-FSA-08/09 : Autor(es): Secretariat

7. Variations in the diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia (Antarctic)

   seasons, whereas the proportion of mysids in the diet remained fairly constant. Krill which has a high ... the lowest within a 28 year period of investigation. Variation in food composition between sampling ... empty stomachs was uncommonly high and stomach content weight was uncommonly low in 1991 in a period ...

   Meeting Document : WG-FSA-93/24 : Autor(es): K.-H. Kock and S. Wilhelms (Germany), I. Everson (United Kingdom) and J. Gröger (Germany)

8. Exploratory longline fishing around the Kerguelen Islands (Division 58.5.1). Description of the fishing effort; catchability and target size of Dissostichus eleginoides

   fishing carried out by one of these longliners has allowed a description of fishing methods to be made ... fact that fish become unhooked along the side of the ship, which leads to a real catchability value in ... seasons (93.4 cm in 1990/91 and 92.95 cm in 1991/92). The fish caught are for the most part adults, and a ...

   Meeting Document : WG-FSA-92/31 Rev. 1 : Autor(es): G. Duhamel (France)

9. Research plan for toothfish in Division 58.4.4a & b by Shinsei Maru No. 3 in 2013/14

   Division 58.4.4 a & b. Regarding SSRU C, the stock size was estimated by using following six methods; 1 ... CASAL_base model includes estimated variability of YCS for the period from 1989 to 2005, and assumed that a ... years in the same locations as in the 2012/13 season, with the same survey design and sample size of a ...

   Meeting Document : WG-SAM-13/21 : Autor(es): Delegation of Japan

10. Calculating effective releases and recaptures for stock assessments based on tag detection and tagging mortality indices

    developed using a methodology which controls for the spatial and temporal variability of fishing operations ... occurred in the same time and place (i.e. within a specific distance and in the same fishing season). The ... generated using this method is as useful as the index of tag detection rate. We further develop a method to ...

    Meeting Document : WG-SAM-14/30 : Autor(es): S. Mormede (New Zealand)

Páginas