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  • Fisheries  (2)
  • Line fishing  (2)
  • GEOPHYSICS
  • Victoria: Seychelles Fishing Authority  (4)
  • 2005-2009  (4)
  • 1
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    Biomass, stock density and the maximum sustainable yield available to a line fishery for Pristipomoides filamentosus (Valenciennes, 1830) on the Northwestern submarine promontory of Saya de Malha Bank (2006)
    Victoria: Seychelles Fishing Authority
    Details
    Publication Date: 2021-05-19
    Description: The mothership/dory fishing operation 'Pecheur Breton' spent 13 days fishing at the northwestern submarine promontory of Saya de Malha Bank between 24th February and 14th March 1993. The mothership fished using 12 dories which were equipped with echo-sounders and electric fishing reels. A total of 74.3 tonnes of fish was caught in the depth range of 55 to 130 m. of which the blue spotted jobfish (Pristipomoides filamentosus) represented 80%. The catch rates were observed to decreased with time and could not be attributed to changes in climatic conditions, fishing depth, fishing method or bait type. The initial biomass of Pristipomoides filamentosus at the northwestern submarine promontory of Saya de Malha Bank was estimated at 76.1 tonnes through application of the Leslie constant catchability model. Biomass densities of 2,478 kg/km² and 1,264 kg/km-1 were obtained by applying the initial biomass estimates to the surface area of the grounds fished. The quantity removed by the mothership/dory fishing operation was found to be more than 3 times the estimated maximum sustainable yield.
    Description: Published
    Keywords: Saya de Malha ; Motherships ; Pristipomoides filamentosus ; Line fishing ; Stock assessment ; Fishing operations ; Line fishing ; Potential yield ; Stock assessment
    Repository Name: AquaDocs
    Type: Report , Non-Refereed
    Format: 395911 bytes
    Format: 592022 bytes
    Format: application/pdf
    Format: application/pdf
    Format: 12pp.
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  • 2
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    Seychelles fisheries country profile : 1990-1994. (2006)
    Victoria: Seychelles Fishing Authority
    Details
    Publication Date: 2021-05-19
    Description: Seychelles is composed of over 100 islands with a land area of approximately 455 km², centred close to 4°30'S and 55°30'E. The combined coastline is approximately 600 km long, the oceanic shelf totals about 50 000 km² and the Exclusive Economic Zone (EEZ) is over 1 370 000 km². The total population (1994 census) stands at just under 74 000. in 1994, the population registered a growth rate of 2.2%. The GDP (1994) was SR 2373.8 million, fisheries representing 4.8% of this sum. Licensing agreements for foreign fishing activities provided a yearly revenue of SR8 million. Port Victoria is seen as a prime centre for tuna fishing operations in the Indian Ocean. In the artisanal fishery just under 900 persons are working. The largest contributor to catch by vessel type are the traditional whaler vessels representing 47.8% of the total catch. Over 66.3% of the catch is by the handline method. Carangidae representing 24% and Lutjanidae 19% of total landings. There are six specific objectives to the fisheries sector policy, which aims as resource development and maximisation of potential benefits. Nearshore fishery resources are considered to be heavily exploited, however opportunities exist around the distant islands and in deeper waters off the Mahe plateau shelf. Aquaculture of molluscs and prawns is being developed and carried out. The main constraints to development are seen as the lack of skilled manpower and foreign exchange.
    Description: Published
    Keywords: Country profile ; Fisheries ; Seychelles ; Statistics ; Fisheries ; Fishery statistics
    Repository Name: AquaDocs
    Type: Report , Non-Refereed
    Format: 186058 bytes
    Format: 520444 bytes
    Format: application/pdf
    Format: application/pdf
    Format: 19
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  • 3
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    The industrial tuna fishing activity in the Western Indian Ocean: report for the year 2001 (2006)
    Victoria: Seychelles Fishing Authority | Victoria
    Details
    Publication Date: 2021-08-09
    Description: Published
    Description: Industrial tuna fishing
    Keywords: Tuna ; Fisheries ; Fishery economics ; Fishery industry ; Fishery statistics ; Tuna fisheries
    Repository Name: AquaDocs
    Type: Report , Non-Refereed
    Format: 1589602 bytes
    Format: application/pdf
    Format: 28
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  • 4
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    Activite des embarcations impliquees dans la peche a la ligne a main aux Seychelles. (2006)
    Victoria: Seychelles Fishing Authority
    Details
    Publication Date: 2021-05-19
    Description: Fishing performances of four different types of boats (pirogues, outboard, whalers, schooners) are studied through the analysis of the temporal evolution, between July 1985 and June 1988, for four parameters: numbers of active fishing boats,- total number of fishing trips, - average number of trips/boat, - average trip duration. The trends from these analysis reveals that the boats involved in the handline fishery in seychelles have evolved considerably. These changes must be taken into consideration in the case of an eventual reorganisation of the fleet.
    Description: Published
    Keywords: Seychelles ; Fishing ; Line fishing ; Fishery statistics ; Line fishing
    Repository Name: AquaDocs
    Type: Report , Non-Refereed
    Format: 899585 bytes
    Format: 785610 bytes
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    Format: 25
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