Search results

1. A Risk Assessment and ancillary approaches to facilitate the management of the krill fishery as envisaged by WG-EMM-2019

   Abstract:  WG-EMM-2019 mapped out a revised management strategy which provides the highest ... time CM 51-07 expires. A key element of this procedure is the extension of the Risk Assessment to ... strategy identified by WG-EMM-2019 it to be delivered in a timely fashion. Author(s):  Delegations of the ... United Kingdom and Australia Title:  A Risk Assessment and ancillary approaches to facilitate the ...

   Meeting Document : SC-CAMLR-38/17 : Author(s): Delegations of the United Kingdom and Australia

2. Seabird mortality on longlines in Australian waters: a case study of progress and policy

   impact of longline fishing on seabirds was first documented, is presented as a case study. Most of the ... seabird bycatch and/or adoption of mitigation methods has been slow. This is a cause for concern given ... , large amounts of data are necessary to gain clear insights into the suite of species impacted by a ... employed. In many cases, it is unlikely that such data will be available for a fishery. To overcome some of ...

   Meeting Document : WG-FSA-98/29 : Author(s): R. Gales, N. Brothers, T. Reid, D. Pemberton and G.B. Baker (Australia)

3. A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators

   population level effects. Here, we present for. the first time a model at the level of the foraging trip for ... the effects of a fishery on krill predators, using the Adelie penguin (Pygoscelis adeliae) as a model ... relative comparisons of penguin reproductive success and adult survival in the absence or presence of a ... and offspring needs and a standard life history model to set the upper limits for expected offspring ...

   Meeting Document : WG-EMM-96/20 : Author(s): Switzer, P.V., Mangel, M.

4. Fitting a von Bertalanffy growth model to length-at-age data accounting for length-dependent fishing selectivity and length-stratified sub-sampling of length frequency samples

   units are selected with a probability that is a function of the response. In sampling to obtain fish to ... process involving a particular gear, and (ii) the method of on-deck sub-sampling fish for ageing from the ... Patagonian toothfish (Dissostichus eleginoides) given a known selectivity function. Author(s):  S.G. Candy ... (Australia) Title:  Fitting a von Bertalanffy growth model to length-at-age data accounting for length ...

   Meeting Document : WG-FSA-SAM-05/13 : Author(s): S.G. Candy (Australia)

5. CCAMLR measures regulating the tagging of Dissostichus species, metrics used to assess vessel tagging performance, the potential for some anomalous results, and general recommendations on tagging; a view from the hauling room

   triggering the requirement to achieve a tag overlap statistic of 60% or more for upcoming season as specified ... that at low levels of tagging, equating to between 2 and 10 t of Dissostichus catch, there is a strong ... likelihood that a breach of the Measure would occur.  We make recommendations from a user perspective on ... potential for some anomalous results, and general recommendations on tagging; a view from the hauling room ...

   Meeting Document : WG-FSA-11/50 : Author(s): J.M. Fenaughty (New Zealand) and J. Brown (United Kingdom)

6. DOWN-SCALING FOOSA TO MODEL THE ADMIRALTY BAY PYGOSCELID PENGUIN COLONIES: A WORK IN PROGRESS

   . This work-in-progress serves 2 purposes: 1) to use historical data to estimate parameters in a model ... helps to explain trends in adult abundance. From a bottom-up perspective, there appears to be a trade ... foraging conditions during the first winter of life. From a top-down perspective, strong depensatory stock ... ADMIRALTY BAY PYGOSCELID PENGUIN COLONIES: A WORK IN PROGRESS Approval:  Approved ...

   Meeting Document : WG-EMM-08/51 : Author(s): J.T. Hinke, G.M. Watters and W.Z. Trivelpiece (USA)

7. A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   Abstract:  Antarctic silverfish (Pleuragramma antarcticum) were sampled during a trawl survey in ... von Bertalanffy growth parameters. The species is relatively slow-growing with a moderate longevity ... separately. Female Antarctic silverfish appear to reach a larger size than males, but none of the estimated ... distribution exhibited a mode from age 6 to 9 years. Author(s):  C.P. Sutton and P.L. Horn (New Zealand) Title ...

   Meeting Document : WG-FSA-10/20 : Author(s): C.P. Sutton and P.L. Horn (New Zealand)

8. Potential modelling structures for a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region

   estimation of biomass in SSRUs 88.2C–G. Additional data resulting from a two-year research plan implemented ... in the future. Results showed that a two-area model with sex- and age-specific migrations from SSRUs ... . Furthermore, a resident population in 88.2H was not required to explain the patterns observed in the data, nor ... plan.  Appendix: CASAL files Author(s):  S. Mormede, S.J. Parker, A. Dunn and S.M. Hanchet (New Zealand ...

   Meeting Document : WG-SAM-15/49 : Author(s): S. Mormede, S.J. Parker, A. Dunn and S.M. Hanchet (New Zealand)

9. A drone-based Antarctic fur seal (Arctocephalus gazella) census of the St. Telmo Islands, South Shetland Archipelago

   monitoring. We used a medium-range vertical takeoff and landing (VTOL) UAS to obtain pup counts from the St ... Telmo Islands during the 2018-19 field season. The APH-28 provided a minimally-invasive, robust, and ... 333, which represents a 79% reduction since the most recent survey in 2008, and a 90% reduction from ... soon as is practicable. Author(s):  D.J. Krause and M.E. Goebel Title:  A drone-based Antarctic fur ...

   Meeting Document : WG-EMM-2019/65 : Author(s): D.J. Krause and M.E. Goebel

10. 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 ... 2001. NORPAC nets were deployed during a CTD transect on the southern leg, sampling four depth zones at ... each of 19 stations: 0–20, 20–50, 50–100 and 100–150 m. A Continuous Plankton Recorder (CPR) was ... , indicating that all communities had a similar distribution of abundance amongst species. There was little ...

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

Pages