Resultados de la búsqueda

1. Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations

   yield component and an unsustainable “windfall” component associated with a one-time reduction in stock ... production, in the form of a “windfall ratio”. The DCAC is calculated as the sum of catches divided by the ... sum of the number of years in the catch series and this windfall ratio. Input information includes the ... sum of catches and associated number of years, the relative reduction in biomass during that period ...

   Meeting Document : WG-SAM-11/P3 : Autor(es): A.D. McCall

2. PROPOSAL TO MOVE THE START DATE OF THE FISHERY FOR DISSOSTICHUS ELEGINOIDES IN SUBAREA 48.3

   full compliance with CM 25-02 in 2009 to fish from 26 April 2010 in the 2009/2010 fishing season ... . Vessels catching 3 birds in this period would have to stop fishing until 1 May 2010. Author(s ... ELEGINOIDES IN SUBAREA 48.3 Approval:  Approved ...

   Meeting Document : WG-IMAF-09/11 : Autor(es): Delegation of the United Kingdom

3. A BRIEF DESCRIPTION OF NEW ZEALAND SCIENTIFIC OBSERVER EFFORTS IN THE CCAMLR AREA

   Abstract:  A brief description of New Zealand scientific observer efforts in the CCAMLR Area is ... provided. The nature and extent of observer deployments in the CCAMLR Area are briefly described (c. 500 ... sea days p.a. in three Subareas). The general training of observers through to post-voyage debriefing ... BRIEF DESCRIPTION OF NEW ZEALAND SCIENTIFIC OBSERVER EFFORTS IN THE CCAMLR AREA Approval:  Approved ...

   Meeting Document : TASO-09/09 : Autor(es): Bilton, D., Smith, N.

4. REFERENCE OBSERVATIONS FOR VALIDATING AND TUNING OPERATING MODELS FOR KRILL FISHERY MANAGEMENT IN AREA 48

   Abstract:  In 2007 WG-SAM defined a set of reference observations for validating and tuning ... reference points for the density of krill, and the abundance of “generic” seals, penguins and whales in 1970 ... considered a definitive description of the relevant dynamics. This exercise resulted in population sizes for ... initialising models than those published in Hill et al (2007). Author(s):  S. Hill (United Kingdom), J. Hinke ...

   Meeting Document : WG-EMM-08/10 : Autor(es): S. Hill (United Kingdom), J. Hinke (USA), É. Plagányi (South Africa) and G. Watters (USA)

5. Catch Uncertainty in Krill Fisheries

   CCAMLR. However, given the currently reported variability in conversion factors for krill, a nominal ... reported catch of 600 000t could actually represent a catch in ‘green weight’ of 2.5 million tonnes ... . Quantifying the level of uncertainty in reported catches of krill would require information on product ... well as the product composition of catches. Author(s):  Secretariat Title:  Catch Uncertainty in Krill ...

   Meeting Document : WG-EMM-08/46 : Autor(es): Secretariat

6. Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia

   age structure and growth parameters are used. It is concluded that only in the three earliest years ... analyses of the data from these seasons is 0.22. It is suggested that large scale fishing was in progress ... prior to the reported commencement in 1970. Author(s):  Everson, I. Title:  Natural mortality rate in ...

   Meeting Document : WG-FSA-97/05 : Autor(es): Everson, I.

7. Evidence of two stocks of Champsocephalus gunnari in the South Georgia region, CCAMLR fishing Area 48.3

   Abstract:  In 1991, the 0 age-class of C. gunnari were sampled at Shag Rocks on 18 January, off ... -46mm and 55-87mm SL. however, off Possession Bay only one mode of 25-57mm SL was apparent. Fish in ... periods and/or growth rates. This suggests that there are two separate stocks of C. gunnari in a single ... larvae on the South Georgia shelf which is comparable with previous reports of early growth in C. gunnari ...

   Meeting Document : WG-FSA-94/16 : Autor(es): A.W. North (United Kingdom)

8. Use of satellite transponders to assist in fisheries management - the Australian experience

   Abstract:  In this paper the Australian experience with using transponders in fisheries management ... occurred in the development of vessel monitoring systems are described. These issues include selection of ... assist in fisheries management- the Australian experience Approval:  Approved ...

   Meeting Document : CCAMLR-XIII/BG/09 : Autor(es): Delegation of Australia

9. Fishes caught along with the Antarctic krill in the vicinity of the South Shetland Islands during the austral summer months of 1994

   of 1994 (from January 12 to February 18) on board F/V Niitaka Maru in the north of the South Shetland ... in 25 trawl catches (Table 1). Among by-catch fishes, juvenile Lepidonotothen larseni was the most ... also secondary abundant. To compare abundance of each fish species, the index of its occurrence in ... of krill concentration (Figs. 1 and 2). The large incidental catch of fishes occurred in hauls with ...

   Meeting Document : WG-Krill-94/25 : Autor(es): T. Iwami (Japan)

10. Biological acoustic survey in the marginal ice edge zone of the Bellingshausen Sea

    Abstract:  An acoustic survey at 38 and 120 kHz was carried out from RRS Discovery in the ... of krill (Euphausia superba) distribution and biomass in the marginal ice edge zone. Krill biomass ... phase. On this first survey a large swarm (2.8 km in extent) had a potential biomass of 3.7 x 104 tonnes ... . Some calculations are presented to show the potential impact of krill on the flux of carbon in the area ...

    Meeting Document : WG-Krill-94/32 : Autor(es): A.W.A. Murray, J.L. Watkins and D.G. Bone (United Kingdom)

Páginas