Search results
-
Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region
the dynamics of spatial heterogeneity of the population along with age structure, movement and reproductive ... stage transition in a holistic framework. Using this software, three spatially explicit age-structured ... with the results of tagging studies and fits to the other observations (age, reproductive development) were ... of the population along with age structure, movement and reproductive stage transition in a holistic framework ... 15 20 25 30 Age (years) 1.0 0.8 0.6 0.4 0.2 0.0 S el ec tiv ... processes Within each spatial cell, the number of tooth- fish in the population model aged 2 to 30 ... was recorded separately, with a plus group at age 30. Also recorded was the population at each repro- ductive ... -year time steps, plus one instan- taneous time step for aging and the movement of spawners back ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Author(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker
-
Within season feedback management system – a pro forma for discussion at WG-EMM 2015
, J. Hinke and D. Kinzey (USA) Title: Within season feedback management system – a pro forma for discussion ... Within season feedback management system – a pro forma for discussion at WG-EMM 2015 ...
Meeting Document : WG-EMM-15/04 : Author(s): C.S. Reiss, G.M. Watters, J. Hinke and D. Kinzey (USA)
-
WG-EMM-02
/17 Current temperature conditions off South Georgia during recent years (satellite data on Subarea ... -02/2 List of participants WG-EMM-02/20 Are krill recruitment indices from meso-scale survey ... to be revised S. Kawaguchi (Japan) WG-EMM-02/3 List of documents WG-EMM-02/30 Results of an acoustic ... population of Béchervaise Island after 12 years of study J. Clarke, K. Kerry, A. Townsend and L. Emmerson ...
Meeting
-
Champsocephalus gunnari stock status in the South Georgia area
/ Description: ata of age composition and fishing effort for 1976/77-1987/88 were used to analyse stock status ... ata of age composition and fishing effort for 1976/77-1987/88 were used to analyse stock status ... . The recruitment was taken at the lowest possible level for all these years (400 million specimens). Catch-per-unit ... intensity was F 0.1. In the first two cases TAC=25-30 thousand tonnes and stock size does not change ... intensidad de pesca fue FO.1. En los dos primeros casos, la T AG=2S-30 mil toneladas y el tamano de la ... 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table Legends Age (years) and weight (gr ... 8 Legendes des tableaux Donnees sur I'age (ans) et le poids (g). Composition en ages des prises ... IN THE SOUTH GEORGIA AREA R. Borodin, P. Kochkin Abstract Data of age composition and fishing effort ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 1-18 : Author(s): Borodin, R. and P. Kochkin
-
Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87
size of 108 mm would in turn correspond to the age at first capture of 4 years (Le. around 32 cm ... , to protect immature fish, or 90 mm, to protect first spawners, or 100 mm, to give an age at first capture ... retenus des classes d'age particulieres. Les lignes verticales representent Lso. Relation graphique ... Hour Per Tow (kg) kg % 630.62 90.60 29 295.30 13.20 9 1081.58 518.00 96 536.74 184.00 69 ... in 1978/79, 1981/82 and 1986/87 Abstract / Description: Trawl selectivity for several species of ... rates and catch composition. Details of these data were analyzed and minimum mesh sizes for several ... species were calculated. It is recommended that introduction of these mesh sizes should be considered for ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Author(s): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias
-
Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)
-FSA-16/33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially revised ... the reviewing process of this research plan. A list of dates by which specific milestones will be completed ... on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21) Approval: Approved ... /33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially revised ...
Meeting Document : WG-FSA-2019/64 : Author(s): Delegations of Japan and France
-
Fishery Report 2016: Exploratory fishery for Dissostichus spp. in Subarea 88.2
in each of the strata in every year. Where available, the otolith ages were used to construct annual area ... years to produce annual catch-at-age distributions (WG-FSA-16/45). Tag-recapture data 24 ... of length, weight, sex and maturity stage, as well as collection of otoliths for age determination ... in the trend is high. Catch at age 22. For the purposes of estimating fishery selectivity for the SSRUs ... Description / Abstract: Fishery Report 2016: Exploratory fishery for Dissostichus spp. in Subarea ...
Document : Site Section: Publications
-
Schedule of Conservation Measures in Force 1989
, Subareas and Divisions of the CCAMLR Area 50° 4 0° 30° 20° 1 0° 1 0° 200 30° 4 O0 500 60° 60° 700 ... 70" 80° 8 00 A N T A R C T I C A 90° 90° Ar~~rrndsert Seu 1000 1000 1100 1100 1200 1200 ... 1. The inspector shall measure one series of 20 meshes, selected in accordance with Article 3, inserting ... size in accordance with Article 5 when using a weight or dynamometer, one series of 20 meshes only ...
Document : Site Section: Publications
-
The direct impact of fishing and fishery-related activities on marine life in the CCAMLR Convention Area with particular emphasis on longline fishing and its impact on albatrosses and petrels – a review
Abstract: Finfishing started in the Southern Ocean more than 30 years ago at South Georgia ... probably only a few animals per year. Author(s): Delegation of Germany Title: The direct impact ... Finfishing started in the Southern Ocean more than 30 years ago at South Georgia and Iles Kerguelen ... birds these effects have been minor, very local and killed probably only a few animals per year. ...
Meeting Document : SC-CAMLR-XIX/BG/11 : Author(s): Delegation of Germany
-
The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
in that year, B ,,,,,, is the individual mass of the predator at age in that year, G,,,,,, is the age ... -specific growth rate of individuals, R,, , is the number of offspring (age 0) in that year ... of change of N,,,,,, during the year is given by where M(p,n+t) is an age-specific function of natural ... of mass in animals of that age including the basic metabolism, costs of foraging and other factors ... fisheries impact incidentally on an ecosystem, (ii) what should be the conservation objectives for predators ... Paper Title: The ecosystem approach to managing fisheries: achieving conservation objectives for ... in its infancy. A general approach is proposed for maintaining ecological relationships and providing ... for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Author(s): Constable, A.J