Search results
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Spawning locations of mackerel icefish at South Georgia
Arising from a sampling program col-tducted from 28 November 1950 to 24 April 1951 in Husvik Harbour ... (Bathydraconidae) of the Scotia Sea (Anarctica). J o u ~ n a l ofIcl?tlzyology, 13 (2 ) : 204-215. Slosarc~yk ... Paper Title: Spawning locations of mackerel icefish at South Georgia Abstract / Description ... inshore spawning at South Georgia during April within and close to the bays on the north side of the ... be at a very much lower intensity than inshore. There is some evidence of spawning at Shag Rocks ... : Historical information on the distribution of spawning and larval mackerel icefish (Champsocephalus gunnari ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Author(s): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.
by appropri- ately scaling F(δt') given Nt,a and Sa given that the annual catch, equation (4), is well ... Paper Title: Estimation of natural mortality using catch-at-age and aged mark-recapture data: a ... , using multiple cohorts and multiple years of catch-at-age and aged mark-recapture data was tested using ... number of recaptures-at-age and model the population numbersat- age by annual difference equations ... of 500 000. Simulations which passed catch-at-age numbers to the estimation algorithm after ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Author(s): Candy, S.G.
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
. The figures for 2000/01 were calculated as 2 fishing vessels x 40 fishing days x 2 fishing trips/year x 1.1 ... is essential. To date two aerial and one sea reconnaissance trips have been undertaken by South Africa ... Paper Title: A first attempt at an assessment of the Patagonian toothfish (Dissostichus ... a robust indication that the spawning biomass has been depleted to, at most, a few percent only of ... eleginoides) resource in the Prince Edward Islands EEZ Abstract / Description: The history of the fishery for ... -per-unit-effort (CPUE) trend. Application of a simple age-structured production model (ASPM) provides ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Author(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller
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Movement, growth and available abundance to the fishery of Dissostichus eleginoides Smitt, 1898 at Heard Island, derived from tagging experiments
removed during processing. Notifi cations were sent to French and South African authorities requesting ... Smitt, 1898 at Heard Island, derived from tagging experiments Abstract / Description: tocks of ... Paper Title: Movement, growth and available abundance to the fishery of Dissostichus eleginoides ... Patagonian toothfish (Dissostichus eleginoides) in different sectors of the Southern Ocean are considered to ... separate between shelves and banks separated by deep water. More particularly, the separation of stocks on ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 33–48 : Author(s): Williams, R., G.N. Tuck, A.J. Constable and T. Lamb
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Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
in the formats requested, in advance of the workshop, and a report describing the survey was tabled. Copies ... Paper Title: Analysis of results from demersal fish surveys at South Georgia, undertaken by the ... discussions and analyses of the data from a survey from MV Hill Cove in January 1990 and RV Akademik Knipovich ... in February 1990 around South Georgia. Both surveys were characterized by large numbers of small ... hauls interspersed with a few large catches. The small number of large catches cause a disproportionate ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Author(s): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
not spawn. This is the appropri- ate relationship to use to monitor spawning stock biomass (Kock ... Paper Title: Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the ... of D. mawsoni shows that once development begins, oocytes grow and accumulate at the cortical alveoli ... least a 6–12 month period, resulting in a developed group of oocytes accumulating at the final ... spawn at a younger age with an A 50% of 12.8 years (95% CI 11.9–14.0) or 120.4 cm (95% CI 114.8–126.7 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Author(s): Parker, S.J. and P.J. Grimes
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Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia
Paper Title: Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia ... significant pattern of changing mean length at depth with month was detected, suggesting movement of animals ... both up and down slope at particular times of year. Months with a high mean length at depth are May and ... August, and with a low mean length at depth- April and July. Examination of maturity data suggests that ... AND SPAWNING PATTERN OF DISSOSTICHUS ELEGINOIDES AT SOUTH GEORGIA D.J. hgnew Renewable Resources ... length. A statistically significant pattern of changing mean length at depth with month was detected ... , suggesting movement of animals both up and down slope at particular times of year. Months with a high mean ... length at depth are May and August, and with a low mean length at depth - April and July. Examination of ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Author(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove
Potter Cove Abstract / Description: The long-term monitoring program of demersal fish at inshore sites ... of the South Shetland Islands has continued at Potter Cove from 2000 to 2006, extending a continuous ... sampling period of 24 years which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The ... early 1980s, while those of G. gibberifrons have further declined and remain close to zero. At Harmony ... , Argentina Abstract The long-term monitoring program of demersal fi sh at inshore sites of the South ... of 24 years which began in 1983, and at Harmony Cove in the summers of 2001 to 2003. The decline in ... 1980s, while those of G. gibberifrons have further declined and remain close to zero. At Harmony Cove ... continuous sampling period of 24 years which began in 1983, and from 2001 to 2003 at Harmony Cove (HC). By ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Author(s): Barrera-Oro, E.R. and E.R. Marschoff
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Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)
component of the population was observed (r=-56.54%). The recovery of the population_at Stranger Point ... intrinsic population growth rate is positive. In 1982, at Stranger Point, a sharp decrease of the female ... component of the population was observed (r=-56.54%). The recovery of the population at Stranger Point, and ... the global increase at Península Valdés, indicate the good condition of these populations. File: 21 ... Paper Title: Observations on haul-out patterns and trends in the breeding populations of southern ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Author(s): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli
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Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment
Paper Title: Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal ... / Description: Four studies on the early life history stages of Antarctic fish at South Georgia are reported ... top 2 m layer at certain times of day. In both seasons some species showed daily vertical migration ... . The findings are discussed in relation to surveys for sampling the early stages of fish at South ... - 105 - WG-FSA-87/16 DISTRIBUTION OF FISH LARVAE AT ... the early life history stages of Antarctic fish at South Georgia are reported. In winter and summer ... at certain times of day. In both seasons some species showed daily vertical migration. The ... findings are discussed in relation to surveys for sampling the early stages of fish at South Georgia, with ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Author(s): North, A.W.