Resultados de la búsqueda

1. An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths

   years or less of each other. Variation in estimates between readers did not increase markedly with age ... full age range, indicating differences in the criteria used to interpret the first few years of age ... Zealand) Title:  An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using ... Abstract:  To examine consistency between laboratories in age estimation of Patagonian toothfish ...

   Meeting Document : WG-FSA-99/56 : Autor(es): J. Ashford (United Kingdom) and P. Horn (New Zealand)

2. Proposal for an acoustic krill biomass survey in CCAMLR Division 58.4.2

   consist of 15 parallel transects between 30° and 80°E. The survey design is presented to WG-EMM for their ... Abstract:  This document outlines plans by Australia to conduct an acoustic biomass survey for ... previous B0 surveys in the CCAMLR Area and will use a similar methodology for collecting an analysing the ... :  Proposal for an acoustic krill biomass survey in CCAMLR Division 58.4.2 Approval:  Approved ...

   Meeting Document : WG-EMM-04/37 : Autor(es): S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia)

3. Criteria for aging the otoliths of Dissostichus eleginoides from South Georgia (Subarea 48.3) and an analysis of aging precision

   Abstract:  A prerequisite for validation of an aging technique is a clear set of consistent aging ... criteria to test. Two sets of criteria ate presented for aging the otoliths of Dissostichus eleginoides ... criteria used to age high latitude fish from the north-west Pacific Ocean. Growth structures were found to ... was more precise than aging using C2. but tended to give higher age counts in younger fish than over ...

   Meeting Document : WG-FSA-98/52 : Autor(es): J. Ashford (United Kingdom) and S. Wischniowski (Canada)

4. Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach

   Abstract:  In anticipation of the development of a new fishery for the oceanic squid Martialia ... and a brief review is provided of information about the life cycle and distribution obtained from ... season. A conservative estimate for total annual consumption by higher predators in the Scotia Sea is ... 245,000 tonnes compared with an upper estimate of 550,000 tonnes if less reliable data are included. M ...

   Meeting Document : WG-FSA-96/20 : Autor(es): Rodhouse, P.G.

5. MODELING PREDATION BY TRANSIENT LEOPARD SEALS FOR AN ECOSYSTEM-BASED MANAGEMENT OF SOUTHERN OCEAN FISHERIES

   assess the implications for an ecosystem-based management. The mesopredators are highly dependent on ... , J.A. Royle and I.J. Staniland Title:  MODELING PREDATION BY TRANSIENT LEOPARD SEALS FOR AN ECOSYSTEM ... ecosystem-based approaches to fisheries management, where harvesting must be sustainable for targeted ... -selective predation and prey vulnerability. A population of 104 (90–125) leopard seals, of which 64%were ...

   Meeting Document : WG-EMM-09/P08 : Autor(es): J. Forcada, D. Malone, J.A. Royle and I.J. Staniland

6. An integrated assessment model for Antarctic krill: progress update

   model estimates of total population abundance for most years and areas when the input data were based on ... for most combinations of samples grouped by year, area, and leg was somewhat lower when it was ... Abstract:  Estimates of population parameters from different configurations of an integrated model ... under development for Antarctic krill are compared to estimates from CMIX and TrawlCI using the same net ...

   Meeting Document : WG-EMM-12/27 : Autor(es): D. Kinzey, G. Watters and C. Reiss (USA)

7. An examination of variance and sample size for female Antarctic fur seal trip durations

   trip duration for the first six trips to sea for 1997/98 (n = 30) and 1998/99 (n = 31) at Cape Shirreff ... sample size in detecting differences between two years of fur seal trip duration data. Female foraging ... -Ecosystem Monitoring Program Standard Method C 1.2 for measuring fur seal trip duration sets the sample size ... suggest changing the protocol from 40 to 25 – 40 females. Author(s):  M.E. Goebel (USA) Title:  An ...

   Meeting Document : WG-EMM-99/45 : Autor(es): M.E. Goebel (USA)

8. Proposal for an extension to the mark-recapture experiment to estimate toothfish population size in the South of Subarea 48.4

   . Author(s):  J. Roberts and D. Agnew (UK) Title:  Proposal for an extension to the mark-recapture ... fishing season with the aims of  providing the data required for assessments of the population structure ... 20% of sets were undertaken during daylight hours and no bird entanglements or mortalities were ... mark‐recapture experiment in the South of Subarea 48.4 in 2010/11 with a reduced TAC of 30 tonnes ...

   Meeting Document : WG-FSA-10/40 : Autor(es): J. Roberts and D. Agnew (UK)

9. Distribution, demography and discard mortality of crabs caught as by-catch in an experimental pot fishery for toothfish in the South Atlantic

   -catch in an experimental pot fishery for toothfish in the South Atlantic Approval:  Approved ... South Georgia of a method of fishing for toothfish (Dissostichus eleginoides) using pots. A significant ... area, had an intermediate depth distribution from 400 – 800m. P. formosa was present in shallow waters ... were discarded. Most crabs (>99% of P. formosa, >97% of P. spinosissima and >90% of P ...

   Meeting Document : WG-FSA-01/32 : Autor(es): M.G. Purves (South Africa), D.J. Agnew, G. Moreno, C. Yau and G. Pilling (United Kingdom)

10. An evaluation of reduced target strength estimates reported for krill (Euphausia superba)

    target strength due to these weaknesses indicate an estimated 3-5 dB error due to unaccounted for ... . Macaulay (USA) Title:  An evaluation of reduced target strength estimates reported for krill (Euphausia ... important, given that they are being cited as a basis for increasing the estimates of krill standing stock ... directivity effects as a result of items under category 1; an estimated 2-3 dB bias due to systematic errors ...

    Meeting Document : WG-KRILL-90/13 : Autor(es): M.C. Macaulay (USA)

Páginas