Resultados de la búsqueda

1. Indicative trends in by-catch of sharks in the CAMLR Convention Area

   Abstract:  Conservation Measure 32-18 on the conservation of sharks specifies that “directed ... .” Further, that “any by-catch of sharks shall, as far as possible, be released alive.”  Here, we examine ... increased during the last 10-year period, with most of the by-catch reported in Division 58.5.2 and ... substantially lower catches in other statistical management areas. We highlight issues, some of which are in ...

   Meeting Document : WG-FSA-18/63 Rev. 1 : Autor(es): C.D. Jones

2. Ageing two myctophid fishes using otolith from king and macaroni penguins in the Marion Island and its implication to feeding preference of penguins on those myctophids

   distributed biological resources in the Antarctic waters, which are the important food sources of top ... predators, particularly penguins. However, the information on age of those fishes are very limited and ... of myctophids in the Antarctic ecosystem. Using the otolith samples collected from King and Macaroni ... penguins in the Marion Island, the present study examined the age determination and precision of age ...

   Meeting Document : WG-FSA-18/74 : Autor(es): M. Duan, G.P. Zhu, A. Makhado and L. Wei

3. The Continuous Plankton Recorder in the Southern Ocean: a comparative analysis of zooplankton communities sampled by the CPR and vertical net hauls along 140°E

   Abstract:  A repeat transect was run south of Tasmania, along ~140°E, during November and December ... each of 19 stations: 0–20, 20–50, 50–100 and 100–150 m. A Continuous Plankton Recorder (CPR) was ... . Zooplankton in the top 150 m of the water column demonstrated strong, small-scale, vertical distribution ... , indicating that all communities had a similar distribution of abundance amongst species. There was little ...

   Meeting Document : WS-BSO-07/P5 : Autor(es): Hunt, B.P.V and G. Hosie

4. An assessment of toothfish in Subarea 48.3 using CASAL

   Abstract:  The CASAL software has been successfully applied to an assessment of the stock of ... , with an extensive range of sensitivity tests and examination of diagnostics. A baseline assessment ... 45,893 t, and the spawning stock biomass was estimated to be 120,360 t, around 67% of its unexploited ... 49,943 t, and the spawning stock biomass was estimated to be 100657 t, some 64% of its unexploited level ...

   Meeting Document : WG-FSA-05/16 : Autor(es): R.M. Hillary, G.P. Kirkwood and D.J. Agnew (United Kingdom)

5. Using production models to assess the stock of Paralomis spinosissima around South Georgia Island

   Abstract:  Four production models were fit to a time series of daily catch per unit effort (CPUE ... recruitment function. The best fitting model was Model 1. Model 1 had three parameters: an estimate of initial ... abundance (N0), an estimate of the scaling coefficient relating abundance to CPUE (q), and a recruitment ... removals should not be greater than the number of crabs that recruit to the fishery during the course of a ...

   Meeting Document : WG-FSA-93/23 : Autor(es): George Watters (USA)

6. Blue-eyed shags as indicators of changes in ittora fish populations

   Abstract:  The use of Shag’s pellets as an appropriate technique to monitor the abundance of ... littoral fish populations is presented for consideration of the CCAMLR Ecosystem Monitoring Program Working ... Group. The effectiveness of the method is based on the very good agreement found between the fish ... species identified by the examinations of otoliths present in regurgitated cast and those regularly ...

   Meeting Document : WG-CEMP-93/25 Rev. 1 : Autor(es): R. Casaux and E. Barrera-Oro (Argentina)

7. Target strength of Antarctic krill

   Abstract:  In-situ measurements of individual krill target strength are presented (modal value ... reproductively mature and averaged 47.44mm in length. Results agree well with recent predictions of acoustic ... target strength based on extrapolations of other field experiments using the bent cylinder model of sound ... scattering by elongated zooplankters. The modal value of the measurements is 6.7dB lower than that predicted ...

   Meeting Document : WG-KRILL-91/13 : Autor(es): R.P. Hewitt and D.A. Demer (USA)

8. Ingestion of anthropogenic articles by seabirds at Macquarie Island

   regurgitations and the stomachs of seabirds at Macquarie Island; these were ingested both at sea and on land ... . Eight percent of regurgitated casts from Macquarie Island Cormorants contained polystyrene beads ... . Plastic particles were recorded from the stomachs of Southern Giant Petrels, Subantarctic Skuas, and Kelp ... Gulls. Birds examined in 1988 had a higher frequency of occurrence of foreign objects than birds ...

   Meeting Document : CCAMLR-VIII/BG/12 : Autor(es): D.J. Slip, K. Green and E. Woehler (Australia)

9. Modelling and Decision Making as Part of the CCAMLR Management Regime

   environment essential for the effective management of the Antarctic marine ecosystem within the requirements ... of CCAMLR Article II. Eight attributes (purpose, description, variables, driving forces, time ... development of suitable simulations of important Antarctic marine ecosystem interactions and to facilitate the ... formulation of a suitable decision-making protocol for management purposes. Author(s):  D.G.M. Miller (South ...

   Meeting Document : WG-CSD-88/10 : Autor(es): D.G.M. Miller (South Africa)

10. plotImage – software for producing augmented image plots of spatially referenced data

    Abstract:  Software is presented for the automated production of standardised image plots of ... spatially referenced data. While developed to satisfy the specific requirements of WG-FSA, the routines have ... been developed to be as generic as possible and may be useful for displaying a wide range of data. This ... Working Groups for the display of spatially referenced data. Author(s):  J.P. McKinlay (Australia) Title ...

    Meeting Document : WG-SAM-10/22 : Autor(es): J.P. McKinlay (Australia)

Páginas