Результаты поиска
-
Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data
Abstract: Using the simplest form of an abundance estimator using tag-recapture data, the Lincoln ... difficulty in accurately estimating key parameters, and consequently introduce bias into an abundance ... against this bias, or to account for their effects in assessment models. In nearly all cases, examples of ... depredation rates are a priority for new tagging programs and tag-based assessments. Due to the complexity of ...
Meeting Document : WG-SAM-12/23 : Автор(ы): D.C. Welsford and P.E. Ziegler (Australia)
-
On assessing the size of the humped rockcod stock (Notothenia gibberifrons) in Subarea 48.3
Abstract: An adaptive approach was used to assess the Notothenia gibberifrons stock in Area 48.3 ... imperative to estimate the catchability coefficient. This parameter was equal to 0.326 to 0.635. An adaptive ... logarithms of observed and calculated biomass indices and resulted in an estimate of from 21.5 to 42.1 ... thousand tonnes for N. gibberifrons biomass in the 1989/90 season. It is thus possible to suggest a TAC of ...
Meeting Document : WG-FSA-91/26 : Автор(ы): P.S. Gasiukov (USSR)
-
Foraging areas of black-browed and grey-headed albatrosses breeding on Macquarie Island in relation to marine protected areas
breeding on the Island. 3. During late incubation and brood periods over 90% of time spent foraging by ... Exclusion Zone around Macquarie Island. In contrast, grey-headed albatrosses (T. chrysostoma) spent on only ... 34 % of their time foraging in MPAs. 4. Black-browed and grey-headed albatrosses spent 30 % and 15 ... for 5% and 12% of the total foraging time respectively. 6. There was significant spatial overlap in ...
Meeting Document : WG-FSA-04/49 : Автор(ы): A. Terauds, R. Gales, G.B. Baker and R. Alderman (Australia)
-
Further calculations of the effects of krill fishing on predators
resilience of the albatross population to the effects of a krill fishery. An approach for estimating the ... situation where predator survival rates depend on other factors in addition to krill biomass. This is ... achieved by making the survival rates depend instead on krill "availability", where there is a ... random component in the relationship between krill biomass and availability. An examination of the ...
Meeting Document : WG-Krill-94/24 : Автор(ы): D.S. Butterworth and R.B. Thomson (South Africa)
-
Population structure of the Antarctic toothfish, Dissostichus mawsoni from the Areas 58 and 88 in the Antarctic Ocean based on mitochondrial and microsatellite DNA markers
localities from the two main Subareas 88 and 58, based on a combined analysis of mitochondrial DNA (mtDNA ... efforts on the stock (unit) management for this valuable fishery resource. Author(s): H.-K. Choi, J.E ... around the Antarctic Continent since 1997, managed solely by the Commission for the Conservation of ... crucial for improving fishery management of this species, the number of populations or stocks of D ...
Meeting Document : WG-FSA-2019/36 : Автор(ы): H.-K. Choi, J.E. Jang, S.Y. Byeon, S. Chung, S.-G. Choi, H. W. Kim and H.J. Lee
-
On cooperation with UNEP (copies of correspondence)
Author(s): Secretariat Title: On cooperation with UNEP (copies of correspondence) Approval ...
Meeting Document : SC-CAMLR-XVIII/BG/20 : Автор(ы): Secretariat
-
Invitation to the Second CCAMLR Technical Workshop on the Development of MPAs in Domain 1
Workshop on the Development of MPAs in Domain 1 Approval: Approved ...
Meeting Document : SC-CAMLR-XXXIII/BG/20 : Автор(ы): Delegations of Argentina and Chile
-
Estimating the level of illegal fishing using simulated scaling methods on detected activity
dynamics, particularly evasion tactics, will be necessary to devise an observation strategy for estimating ... account. An important consideration for the future will be the inevitable tension for fishery patrol ... whether the method for estimating catches from illegal, unregulated or unreported (IUU) fishing developed ... by Agnew and Kirkwood (2002) for Subarea 48.3 could be applied to other CCAMLR areas (SC-CAMLR-XXII ...
Meeting Document : WG-FSA-SAM-04/14 : Автор(ы): Ball, I.
-
On selectivity of commercial and research trawls when krill catching
results of fishing one krill aggregation with two types of trawls (PT 72/308 commercial trawl and Isaacs ... dB. Associated variation in density estimates for the same MSBS value amounted to 1.65. Theoretical ... selectivity of midwater trawl depended both on its design, trawling velocity, and catch value. Trawl ... groups, and primarily in young krill assessment. Analysis of abundance biomass estimates on the basis of ...
Meeting Document : WG-EMM-96/34 : Автор(ы): Kasatkina, S.M.
-
Strengthening the joint work of the CEP and SC-CAMLR on climate change
outcomes for the workshop, including: agreeing on a scientific baseline; compiling overviews of existing ... between the CEP and SC-CAMLR on climate change. In this paper, we suggest some ways to ensure successful ... efforts; basing the joint work programme on the CEP’s Climate Change Response Work Programme; determining ... a process for information updates and exchange; considering mechanisms for temporary protection of ...
Meeting Document : SC-CAMLR-XXXIV/BG/29 : Автор(ы): Submitted by ASOC
Страницы
- « первая
- ‹ предыдущая
- …
- 203
- 204
- 205
- 206
- 207
- 208
- 209
- 210
- 211
- …
- следующая ›
- последняя »