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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
between reduction in spawning biomass and hence year-class strength as a result of fi shing ... in Table 5, together with those for projections to 2010 and to 2020 under a future constant annual catch ... in C PU E tr en d 24 2 97 (2 0 20 1; 3 4 54 3) 30 0 79 -2 .9 36 84 8 0. 39 ... Figure 1: Population model fi ts and 20-year projections in terms of both the spawning and exploitable ... eleginoides) resource in the Prince Edward Islands EEZ Abstract / Description: The history of the fishery for ... Patagonian toothfish (Dissostichus eleginoides) in the Prince Edward Islands Exclusive Economic Zone (EEZ) is ... reviewed briefly. It is characterised by very large illegal catches and a sharply declining longline catch ... maximum of about 400 tonnes. Implications for surveillance are discussed. File: 02brandao-etal.pdf ...
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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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.
, M, using multiple cohorts and multiple years of catch-at-age and aged mark-recapture data was tested using ... obtained by integrating an ordinary differential equation (ODE) for within-year population dynamics ... ; constant catch ODE (CCODE) model uses a new total mortality ODE with constant within-year catch per unit ... the process error in predicted catch-at-age numbers. Simulations assumed 1 000 releases per year over 12 years ... , this gave year classes or cohorts (c) of 1 to 46 corresponding to calendar years of 1975 to 2020 for which ... for expected number of recaptures of 5 units between 0 and 30 with upper bins of 30–40 and >40. The residual ... –7.30 CCODE 0.10 LN 0.0993 0.1485 –27.64, 20.58 –0.73 14.87 15.76 BODE 0.13 LNf 0.1266 0.0709 –12.06 ... multiple cohorts and multiple years of catch-at-age and aged mark-recapture data was tested using ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Author(s): Candy, S.G.