Результаты поиска
-
Is our attempt to estimate biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited
this species was one of the first conservation measures CCAMLR adopted in 1985. Fish biomass within a ... CCAMLR Subarea or part of a subarea is commonly estimated targeting a number of species including N ... violated in the case of N. rossii which shows an abundance which is extremely skewed in that a large ... acoustic survey combined with a number of identification hauls might be the most promising approach to ...
Meeting Document : WG-FSA-03/12 : Автор(ы): K.-H. Kock (Germany), M. Belchier (United Kingdom) and C.D. Jones (USA)
-
Revised research plan for toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2011/12
Abstract: A tagging survey in SSRUs B and C in Division 58.4.4 a & b was initiated in the ... structure, size, movement and growth of Dissostichus spp. in the centred area of Division 58.4.4 a & b ... 58.4.4 a & b) was estimated using simple Petersen, CPUE x area, and CPUE comparison methods. The ... small numbers of recapture. The estimations using other two methods were a half to a quarter smaller ...
Meeting Document : WG-FSA-11/15 Rev. 1 : Автор(ы): K. Taki, T. Iwami and M. Kiyota (Japan)
-
Preliminary results of a feeding trial on the blue-eyed shag Phalacrocorax atriceps
Abstract: Local fish species were used to feed a captive blue-eyed shag Phalacrocorax atriceps ... otolith-lengths. The shag produced a total of 16 pellets, with a frequency of 1 every 2.5 days. It ... ingested willingly a mean ration equivalent to 31% of its mass, which is a higher energy requirement than ... -Oro and P. Silva (Argentina) Title: Preliminary results of a feeding trial on the blue-eyed shag ...
Meeting Document : WG-CEMP-94/29 : Автор(ы): R. Casaux, M. Favero, E. Barrera-Oro and P. Silva (Argentina)
-
Towards a Minimum Realistic Model for investigating trophic relationships between Antarctic toothfish and demersal fish in the Ross Sea, Antarctica
Abstract: We report on progress towards developing a Minimum Realistic Model for investigating ... in the Ross Sea, Antarctica. These demersal fish are known to form a part (in some cases a ... substantial part) of the diet of Antarctic toothfish of a size commonly taken by the Ross Sea fishery and are ... and toothfish. A Minimum Realistic Model is the most appropriate modeling approach to investigate what ...
Meeting Document : WG-SAM-10/21 : Автор(ы): M.H. Pinkerton, S. Mormede and S.M. Hanchet (New Zealand)
-
Notification for scientific research in 2019/20 under CM 24-01: Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2
up in the spring, may provide access to a productive pagophilic ecosystem for feeding as well as a ... further east and north of the CCAMLR Convention area, which is bounded by latitude 60°S. Obtaining a ... spawning season is needed. We propose to conduct a scientific survey during the austral winter in the ... biological samples from a range of locations in the northern regions of Subarea 88.1 and 88.2 and begin in ...
Meeting Document : WG-SAM-18/09 : Автор(ы): Delegation of New Zealand
-
Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2
up in the spring, may provide access to a productive pagophilic ecosystem for feeding as well as a ... further east and north of the CCAMLR Convention Area, which is bounded by latitude 60°S. Obtaining a ... spawning season is needed. We propose to conduct a scientific survey during the austral winter in the ... biological samples from a range of locations in the northern regions of Subarea 88.1 and 88.2 and begin in ...
Meeting Document : WG-FSA-18/40 : Автор(ы): Delegation of New Zealand
-
A review of methodologies aimed at avoiding and/or mitigating incidental catch of protected seabirds.
fisheries interactions have been released in a variety of local, national and international media. Recent ... published reviews in the field of bycatch mitigation have typically had a species or fishing method focus ... . This report presents the results of the seabird component of a global review of mitigation methods ... influencing the appropriateness and effectiveness of a mitigation device include the fishery, vessel, location ...
Meeting Document : WG-FSA-05/P8 : Автор(ы): Bull, L.
-
A method for inferring movement rates of fish from mark–recapture data
time is known. The simplest approach is to make a frequency plot of the distance between each release ... being able to allow a much richer description of movement than is available with the frequency of ... distances approach. In addition, it also provides a way to generate a movement model that is parameterized ... , which includes uncertainty that can readily be integrated into a population simulation. If the goal of ...
Meeting Document : WG-FSA-05/66 : Автор(ы): C. Wilcox (Australia)
-
Longline sink rates on a bottom autoline vessel in New Zealand: draft
Abstract: Longline sink rates were investigated using Time Depth Recorders on a bottom autoline ... a method of accelerating line sink rate and thus avoiding incidental capture of seabirds. A new ... the middle of an unweighted longline of this design sinks to 10m in a mean time of 63.0 seconds (n ... = 11, c.v. 16.7%), compared with the start of the longline which takes a mean time 31.1 seconds (n = 11 ...
Meeting Document : WG-FSA-98/51 : Автор(ы): N.W. McL. Smith (New Zealand)
-
A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997–98 TO 2007–08
catch was the fourth highest on record with a total of 2666 t against a combined catch limit of 3207 t ... . The management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3 ... season, primarily as a result of the ice conditions. The length frequency data from the Ross Sea fishery ... overall length frequency distribution, and no evidence for a reduction in fish length in any SSRU over ...
Meeting Document : WG-FSA-08/22 : Автор(ы): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)
Страницы
- « первая
- ‹ предыдущая
- …
- 54
- 55
- 56
- 57
- 58
- 59
- 60
- 61
- 62
- …
- следующая ›
- последняя »