Résultats de la recherche

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

   under a specified catch regime. The model uses an adaptive Runge-Kutta procedure to evaluate stock ... trajectories and catch rates over a simulation period. In particular, this procedure calculates catches over ... also includes an option for a stock to experience a known catch history before the constant catch ...

   Meeting Document : WG-FSA-95/41 : Auteur(s): de la Mare, W.K., Constable, A.J.

2. Fishes caught along with the Antarctic krill in the vicinity of the South Georgia Island during the austral winter months of 1992

   Abstract:  Observations on abundance of by-catch fishes were made during the austral winter months ... found in 20 trawl catches. Among by-catch fishes, juvenile Lepidonotothen larseni was the most abundant ... (62 specimens; 93.9% in number; 58.9% of total weight of by-catch fish). Standard length (SL) of L ... ) were also found, but no other fish species was recognized in our by-catch samples. The abundance of ...

   Meeting Document : WG-KRILL-93/51 : Auteur(s): T. Iwami (Japan)

3. A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80

   November 1979 and April 1980, the fishery being terminated when the catch per unit effort fell to an ... uneconomic level. The extent of the L. murrayi grounds is examined on the basis of catch-per-unit-effort data ... applied in this area of high concentration, accounting for almost 95 per cent by mass of the total catch ... . Although the catch rate declined, the mean size of exploitable crabs and of undersize crabs stayed ...

   Meeting Document : WS-CRAB-93/21 : Auteur(s): R. Melville-Smith (South Africa)

4. Krill fishery report: 2005 update

   preliminary estimate of the total catch of krill for the season is approx 142000 t. This compares with 118166 ... t of krill reported in 2003/04. One monthly catch and effort report is overdue for 2004/05, and some ... ; Time series of catch by season, Contracting Party and small-scale management unit; Species composition ... of by-catch; Occurrence of incidental catches of seabirds and mammals; Development of measures of ...

   Meeting Document : WG-EMM-05/5 : Auteur(s): Secretariat

5. A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season

   days between 25 December 1997 and 5 January 1998. The total catch of C. gunnari was 5.04 tonnes in 34 ... hauls. 67% of this catch was taken in just two hauls, confirming the patchy distribution of this species ... . Most of the catch was made up of fish between 22 and 30 cm long. Fish of this size range have ... previously been shown to be ages two and three. The catch of species other than C. gunnari amounted to only ...

   Meeting Document : WG-FSA-98/53 : Auteur(s): G. Parkes, A. King and C. Jones (United Kingdom)

6. Krill distribution variability and fishery conditions within the local ground of Subarea 48.3 in June 1991

   coefficient of catch per a houl of BMRT type vessel amount to V = 0.7, that of a trawl catchability V = 0.197 ... coefficient of possible catch per fishing day (over 24 hours) is only V = 0.13. At considerable variations of ... krill distribution characteristics daily catch of vessels with higly efficient technological equipment ... , such as catch per an hour haul, is more sensitive. Author(s):  Kasatkina, S.M. Title:  Krill ...

   Meeting Document : WG-EMM-95/04 : Auteur(s): Kasatkina, S.M.

7. Fishes caught along with the Antarctic krill in the vicinity of the South Shetland Islands during the austral summer months of 1994

   Abstract:  Observations on abundance of by-catch fishes were made during the austral summer months ... in 25 trawl catches (Table 1). Among by-catch fishes, juvenile Lepidonotothen larseni was the most ... of krill concentration (Figs. 1 and 2). The large incidental catch of fishes occurred in hauls with ... the low krill catch rates (Hauls. 36 and 47), and fishes are not found or rare within krill swarms of ...

   Meeting Document : WG-Krill-94/25 : Auteur(s): T. Iwami (Japan)

8. Distribution and abundance of skates (Bathyraja spp.) on the Kerguelen Plateau through the lens of the toothfish fisheries

   as incidental by-catch in Patagonian toothfish (Dissostichus eleginoides) longline and trawl ... extending from the islands. Catch rates were modelled using zero-inflated GAMs and GLMs. The catch rates of ... decline in catch rate over the years of the HIMI fishery. Although all skates are returned to the water ... Kerguelen in the time period. This study provides the first review of skate by-catch across both the HIMI ...

   Meeting Document : WG-FSA-16/P03 : Auteur(s): G.B. Nowara, P. Burch, N. Gasco, D.C. Welsford, T.D. Lamb, C. Chazeau, G. Duhamel, P. Pruvost, S. Wotherspoon and S.G. Candy

9. Different CPUE types in Soviet krill fishery statistics in 1977–1992

   and primary data for their calculations were considered. The main CPUE indices were catch per fishing ... day (CFD), catch per extended fishing day (CEFD) and catch per hour (CH). The primary data for all the ... calculations were catch per haul and haul duration. There is rather high correlation between mean monthly ...

   Meeting Document : WG-EMM-03/35 : Auteur(s): F.F. Litvinov, A.Z. Sundakov and V. Arkhipov (Russia)

10. Krill fishery information

    /99 caught 103318 t of krill, and preliminary information indicates that the catch in 1999/00 will ... exceed 82913 t. Krill caught in 1998/99 was taken in Subareas 48.1 (38% of total catch), 48.2 (49%) and ... 48.3 (13%). As in recent past years, only grounds in Area 48 were fished. Catch and effort data and ...

    Meeting Document : WG-EMM-00/25 : Auteur(s): Secretariat

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