Search results
-
CCAMLR course in survey design and execution – a possible way to assure intellectual continuity and renewal in WG-EMM
Abstract: A proposal to arrange a CCAMLR course in survey design and execution at KMRS is put ... and practical aspects of krill survey work by planning and performing a “miniature survey” in ... Gullmarsfjorden with the Nordic Krill Meganyctiphanes norvegica as a model organism. It is argued that such an ... in survey design and execution – a possible way to assure intellectual continuity and renewal in WG ...
Meeting Document : WG-EMM-01/51 : Author(s): B. Bergström and M.A. Thomasson (Sweden)
-
CCAMLR spatial management GIS: potential applications for informing the development of a representative system of MPAs
Abstract: We have developed a Geographic Information System (GIS) and accompanying metadata to ... protected areas as part of the development of a representative system of Antarctic marine protected areas ... proportion of bioregion areas protected by MPAs. The database also provides a central repository for ... information on the location and status of designated MPAs, which will be a key requirement for the effective ...
Meeting Document : WS-MPA-11/20 : Author(s): S.M. Grant, S.L. Hill and P.T. Fretwell (UK)
-
Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations
-lived species. Over an extended period (e.g. a decade or more), the catch is divided into a sustainable ... yield component and an unsustainable “windfall” component associated with a one-time reduction in stock ... biomass. The size of the windfall is expressed as being equivalent to a number of years of sustainable ... production, in the form of a “windfall ratio”. The DCAC is calculated as the sum of catches divided by the ...
Meeting Document : WG-SAM-11/P3 : Author(s): A.D. McCall
-
Modelling growth of Antarctic krill: a new approach to describing the growth trajectory
from population-level data consisting of modal lengths obtained from a time sequence of length ... a step-growth function that combines models of instantaneous growth rate (IGR) at moult calibrated ... from direct measurements of individual pre- and post-moult krill sampled from the wild with a model of ... from the Indian Ocean sector we model IGR as a function of pre-moult length and season using linear ...
Meeting Document : WG-EMM-05/27 : Author(s): S. Candy and S. Kawaguchi (Australia)
-
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 : Author(s): K. Taki, T. Iwami and M. Kiyota (Japan)
-
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 : Author(s): 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 : Author(s): Delegation of New Zealand
-
A review of the energetic density of zooplankton and nekton species of the Southern Ocean
capacity of marine ecosystems to support stocks of living resources. This paper provides a summary of a ... review on currently available Southern Ocean energetic density data. This review is a result of the ... on the diet and energetics of Southern Ocean species is collected to form a centralised database ... Putte Title: A review of the energetic density of zooplankton and nekton species of the Southern Ocean ...
Meeting Document : WG-EMM-18/P17 : Author(s): F.L. Schaafsma, Y. Cherel, H. Flores, J.A. van Franeker, M.A. Lea, B. Raymond and A.P. van de Putte
-
A PRELIMINARY BALANCED TROPHIC MODEL OF THE ECOSYSTEM OF THE ROSS SEA, ANTARCTICA, WITH EMPHASIS ON APEX PREDATORS
Abstract: We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea as a step towards investigating ecosystem effects of the fishery for Antarctic toothfish ... toothfish. A survey of the available literature and both published and unpublished data provided an initial ... the method we used to adjust the parameters to give a balanced model taking into account estimates of ...
Meeting Document : WG-EMM-08/42 : Author(s): M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)
-
Reproduction in Antarctic notothenioid fish - a review
Abstract: Abstract: Gonad maturation in Antarctic notothenioid fish is a biennial process ... % at spawning. Apart from a few nototheniid species the GSI of males is much less and typi6dlly only 15 ... autumn. Spawning time is remarkably constant among populations of some species, in others a latitudinal ... weight. It exceeds 100 000 eggs only in a few nototheniid species and is commonly in the order of 1000 to ...
Meeting Document : SC-CAMLR-X/BG/12 : Author(s): Delegation of Germany