Search results

1. A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty

   and thus allow assessments of yield to be made for existing fisheries. An example is presented ... for existing fisheries. An example is presented for the Patagonian toothfish, Dissostichus eleginoides, around ... catch history and thus allow assessments of yield to be made for existing fisheries. An example ... . Keywords: CCAMLR, fisheries management, population dynamics, stock assessment, sustainable yield, yield ... s t a t u s of t h e popu la t i on (a difficult task in any fishery). However, it is based on the assumption ... of growth during the year); an age-selectivity function, a(a) (allows for a fishery that targets specific ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Author(s): Constable, A. and W.K. de la Mare

2. Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region

   in the fishery being assessed. New Zealand identified an interim list of taxa to monitor in fishery by-catch ... in the Ross Sea as part of its benthic fisheries impact assessment. The rationale for including or excluding ... , taxonomic resolution and presence in fishery by-catch are also important. Thirteen coarse-resolution ... ) requires a specific list of the taxa that are considered vulnerable in the fishery being assessed. New ... a specific list of the taxa that are considered vulnerable in the fishery being assessed. New Zealand ... identified an interim list of taxa to monitor in fishery by-catch in the Ross Sea as part of its benthic ... fisheries impact assessment. The rationale for including or excluding each taxonomic group is described ... in fishery by-catch are also important. Thirteen coarse-resolution taxonomic groups are identified ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Author(s): Parker, S.J. and D.A. Bowden

3. Factors to consider in developing management measures for krill

   for krill fisheries. Various possible elements of procedures such as reactive, predictive, and feedback ... fisheries. Various possible elements of procedures such as reactive, predictive, and feedback management ... of terms and concepts used in fishery management. Report of the Advisory Committee on Marine Resources ... of steps for the evolution of management procedures for krill fisheries. Various possible elements ... in the Antarctic (Laws, 1977). The baleen whales were the object of major fisheries, with some species being ... (CCAMLR). This is in contrast to the situation under which most other fisheries have been managed ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Author(s): de la Mare, W.K.

4. The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)

   Paper Title:  The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands ... recently with longliners. This is the oldest fishery targeting D. eleginoides in the Indian Ocean sector ... fishery to assess the trends in and the factors affecting catch-per-unit-effort (CPUE) in both the trawl ... and the longline fisheries. The most recent trends show a decrease in CPUE, indicating probable local overfishing ... 1 The PaTagonian TooThfish (Dissostichus eleginoiDes) fishery in The Kerguelen islands (indian oCean seCTor ... . This is the oldest fishery targeting D. eleginoides in the Indian Ocean sector of the Southern Ocean. However ... linear model (GLM) analysis was performed using statistical data from the legal fishery to assess ... fisheries. The most recent trends show a decrease in CPUE, indicating probable local overfishing ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Author(s): Lord, C., G. Duhamel and P. Pruvost

5. Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf

   to the Ross Ice Shelf). The catch rates from the exploratory longline fishery typically show high temporal ... evidence for an ontogenetic migration from east to west as they grow. From the fisheries data available ... , there is no evidence for a northward contraction in the range of D. mawsoni over the course of the fishery ... the exploratory longline fishery typically show high temporal and spatial variability, even between consecutive ... of the stock range since fishing began. Materials and methods The fishery data used in this report come from ... ). The catch rates from the exploratory longline fishery typically show high temporal and spatial variability ... evidence for an ontogenetic migration from east to west as they grow. From the fisheries data available ... , there is no evidence for a northward contraction in the range of D. mawsoni over the course of the fishery ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Author(s): Hanchet, S.M., S. Mormede and A. Dunn

6. Can we satisfactorily estimate variation in krill abundance?

   :  Knowledge of abundance and rates of change of abundance are basic requirements for fisheries models. Catch ... per unit effort (CPUE) has traditionally been used in demersal fisheries assessments as an estimator ... of abundance. It is less satisfactory for pelagic fisheries. Evidence is given that CPUE estimated from data ... reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) does ... of abundance and rates of change of abundance are basic requirements for fisheries models. Catch per unit ... effort (CPUE) has traditionally been used in demersal fisheries assessments as an estimator ... of abundance. It is less satisfactory for pelagic fisheries. Evidence is given that CPUE estimated from data ... reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) does ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Author(s): Everson, I.

7. Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)

   del Fuego was conducted as part of the New Fisheries Projects developed by Chile, primarily ... of the New Fisheries Projects developed by Chile, primarily to establish the presence of Dissostichus spp ... February and March 1998, a 43-day cruise on FV Tierra del Fuego was conducted as part of the New Fisheries ... fishery, longline, Dissostichus, CPUE, Antarctica, CCAMLR INTRODUCTION Attempts at commercial fishing ... of massive exploitation of Antarctic fish (Hureau and Slosarczyk, 1990). Reports showed that maximum ... will have an impact on present and future fisheries for D. eleginoides. The Dissostichus g roup also ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Author(s): Arana, P.M. and R. Vega

8. Analysis of haul data from the South Georgia krill fishery

   Paper Title:  Analysis of haul data from the South Georgia krill fishery Abstract / Description ... :  Data from individual hauls carried out by vessels operating in the South Georgia krill fishery between ... 1994 and 1996 were examined and a range of descriptive measurements reflecting the fishery operation ... were produced. The measurements emphasise that the krill fishery at South Georgia was geographically ... DATA FROM THE SOUTH GEORGIA KRILL FISHERY P.N. Trathan, I. Everson and E.J. Murphy British Antarctic ... out by vessels operating in the South Georgia krill fishery between 1994 and 1996 were examined ... and a range of descriptive measurements reflecting the fishery operation were produced. The measurements ... emphasise that the krill fishery at South Georgia was geographically focused, operating in a limited area ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Author(s): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes

9. Beyond MSY: a consideration of definitions of management objectives

   fisheries. File:  09-Gulland.pdf ... fisheries. ... for the provision of advice to the Commission for the finfish and krill fisheries. Le concept de "production ... , and as function of the two main characteristics of the fishery - the age at first capture (which may ... be unnecessarily cautious. - 309 - In practice, fisheries management has often erred in the opposite ... management, but because in many fisheries the fishing effort has not reached the critical level ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Author(s): Gulland, J.A.

10. A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3

    -documented fisheries protection vessel (FPV) cruise data. The method takes explicit account of both ‘seen ... of fish catch rate was calculated for each area and each year using reported catch and effort data ... licensed fishery (1997) when few vessels used mitigation measures. Three years were analysed: 1998/99, 1999 ... of fish and by-catch of birds. It utilises high quality, well-documented fisheries protection vessel (FPV ... was calculated for each area and each year using reported catch and effort data. The catch rate of birds ... - tion, such as opportunistic sightings by merchant Table 1: Fisheries protection vessel (FPV ... of birds are derived from analysis of CCAMLR data, based on rates published in CCAMLR reports ... report sightings of vessels ...

    Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Author(s): Agnew, D.J. and G.P. Kirkwood

Pages