Результаты поиска
-
ADDRESSING UNCERTAINTY OVER THE IMPORTANCE OF ANTARCTIC TOOTHFISH AS PREY OF SEALS AND WHALES IN THE SOUTHERN ROSS SEA: A REVIEW
relative weight that should be given to direct, observational evidence of predator diet composition, as ... portion consumes during that and other parts of the year, although it should not be trivial. Much less is ... evident that toothfish are an important prey of Weddell seals (Leptonychotes weddellii). Recent findings ... show the seals do not eat toothfish hard parts, thus providing the reason that toothfish have seldom ...
Meeting Document : WG-EMM-08/22 : Автор(ы): D. Ainley and D. Siniff (USA)
-
Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ... models of krill biomass, at120 kHz frequency that can be used to augment research acoustic surveys if ... Linear Modeling framework. We correlate these estimates of biomass with acoustic estimates derived from ... between these two areas and the 3-frequency biomass showed that models developed using a wide length ...
Meeting Document : SG-ASAM-12/04 : Автор(ы): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
-
Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ... models of krill biomass, at 120 kHz frequency that can be used to augment research acoustic surveys if ... Linear Modeling framework. We correlate these estimates of biomass with acoustic estimates derived from ... between these two areas and the 3-frequency biomass showed that models developed using a wide length ...
Meeting Document : SG-ASAM-15/03 : Автор(ы): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
-
Indicative trends in by-catch of sharks in the CAMLR Convention Area
.” Further, that “any by-catch of sharks shall, as far as possible, be released alive.” Here, we examine ... comparison of data from vessels vs. scientific observers. This paper provides information that could be ... Abstract: Conservation Measure 32-18 on the conservation of sharks specifies that “directed ... scientific observers from the 1996–2017 fishing seasons. While there appear to be substantial gaps in the ...
Meeting Document : WG-FSA-18/63 Rev. 1 : Автор(ы): C.D. Jones
-
Proposal for trials to test modified longline gear as a means to reduce cetacean depredation and mitigate incidental bird catch
conjunction with the observer’s report of that cruise (Basson 2006). Initial results were promising, and the ... ” longline configuration for mitigating cetacean interactions in 2006. This paper should be read in ... UK intends to proceed with further, more extensive trials, in the 2007/08 fishing season in Subarea ... 48.3. Although seabird interactions are expected to be minimal, the trials will stop if 3 seabirds are ...
Meeting Document : WG-FSA-07/31 : Автор(ы): Delegation of the United Kingdom
-
The US commercial krill fishery in Area 48: development, fishing patterns, and decision making
north of South Georgia; in 2001, all fishing was conducted off the South Shetland Islands and Bransfield ... concentrations of krill were found in Bransfield Strait in 2001 while fishing inside the ice edge. The success of ... . Increasing catch rates with time are likely related to the experience of the Captain, as opposed to indices ...
Meeting Document : WG-EMM-02/18 : Автор(ы): C.D. Jones and M. Hull (USA)
-
A review of conversion factors used in CCAMLR toothfish fisheries
be required to better understand the sources of this variability. The results suggest that a ... integral to the reporting of catches and reconciling those catches with data reported via the CDS. This ... that might influence those conversion factors. There was considerable inter-vessel variability as well ... persisted even within the same processing code, suggesting that more details on the processing methods may ...
Meeting Document : WG-FSA-15/02 : Автор(ы): CCAMLR Secretariat
-
Characterising the preferred at-sea habitats used by chinstrap penguins and the fishery for Antarctic krill: slow-flowing, nearshore waters over shallow bathymetry
. Nevertheless, we conclude that these models can, with some confidence, be extrapolated to predict the foraging ... , we report that chinstrap penguins prefer habitats with slow-flowing, nearshore waters over shallow ... Abstract: We show that the preferred habitat models developed by Warwick-Evans et al. (2017) for ... chinstrap penguins breeding at the South Orkney Islands, can be modified to predict the at-sea distribution ...
Meeting Document : WG-EMM-17/34 : Автор(ы): P.N. Trathan, V. Warwick-Evans, J. Hinke, E.F. Young, A.P.B. Carneiro, M.P. Dias, K. Kovacs, O.R. Godø and M. Santos
-
A method for inferring movement rates of fish from mark–recapture data
, which includes uncertainty that can readily be integrated into a population simulation. If the goal of ... simpler approaches that might be useful. For instance, one alternative would be to ask how much time is ... unmarked fish in that location. Clearly this may be related to the distance from the release point, but ... Abstract: This paper presents methods to infer the rate of movement of fish that are marked ...
Meeting Document : WG-FSA-05/66 : Автор(ы): C. Wilcox (Australia)
-
Developing research on Antarctic krill to facilitate the development and updating of feedback management procedures
types of data that can be realistically obtained and monitored on the productivity of the ecosystem and ... (www.iced.ac.uk). Here we report on planned and proposed ICED activities that are relevant to krill that will be ... of interest to CCAMLR scientists and suggest that development of future joint activities would be of ... Abstract: Antarctic krill fisheries have the potential to be in the top 10 fisheries of the world ...
Meeting Document : WG-EMM-13/12 : Автор(ы): E.J. Murphy, R.D. Cavanagh (United Kingdom), A. Constable (Australia), E.H. Hofmann (USA), S.L. Hill, N.M. Johnston, P.N. Trathan and J.L. Watkins (United Kingdom)
Страницы
- « первая
- ‹ предыдущая
- …
- 130
- 131
- 132
- 133
- 134
- 135
- 136
- 137
- 138
- …
- следующая ›
- последняя »