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Summary of the geology, geomorphology, climate and vegetation of the Sepik and Ramu River catchments with notes on their relevance to fisheries

PNG/85/001

Year of publication 1989

Pages 42 p.

Author Coates, D.

Publisher FAO ;

Product type Project

Edition 1

Synopsis (short abstract) This document provides background information for project PNG/85/001. A synthesis of knowledge of various aspects of the Sepik and Ramu River catchments is provided. The information is presented in relation to project objectives and activities. Most sections have been summarised from existing books and other information (quoted where relevant) but have been placed within the context of the Sepik and Ramu rivers and project PNG/85/001. The subjects covered here are relevant to fisheries related m atters and this is explained later in the Discussion section.

Language English

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    Preliminary report on population statistics and socio-economic data for the Sepik and Ramu River catchments
    Sepik River Fish Stock Enhancement Project: PNG/85/001. Field Document No. 4
    1989
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    This document summarises the information available on the habits of fishes in floodplain regions of the Sepik and Ramu River systems, Papua New Guinea, with respect-to project PNG/85/001.
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    Fish fauna of the Sepik and Ramu River floodplain regions. Summary of information on fish ecology, identification of vacant niches and categories of species suitable for stocking
    Sepik River Fish Stock Enhancement Project: PNG/85/001
    1989
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    This document summarises the information available on the habits of fishes in floodplain regions of the Sepik and Ramu River systems, Papua New Guinea, with respect-to project PNG/85/001
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    Survey of economic activities, animal protein intake, fishery activities and fish yieids in the Sepik-Ramu catchment, 1991-1992. Part II· Results and Discussion
    Sepik River Fish Stock Enhancement Project: PNG/85/001. Field Document No. 18b
    1993
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    In 1987 the Sepik River Fish Stock Enhancement Project (SRFSEP) started its activities. During the first stage (1987 - 1990). studies on the fish stocks in the lower order streams and rivers in the Sepik-Ramu catchment area were conducted. Prior to this the fish stock and fishing activities of the Sepik flooplain only had been studied. It was concluded that the yield from the Sepik-Ramu catchment area was about 10% that which could be expected from a similar size river system elsewhere in Asia. Afica or South America. The fish stock is thoughuo be limited by the-absence of native fish species from freshwater fish families due to the geological history of New Guinea. and the very recent creation of the Sepik floodplain (approximately 6000 years ago), with consequently very few (3) native fish species which are well adapted to floodplain conditions (Coates 1990). It was proposed that new fish species should be imported and stocked in the Sepik-Ramu catchment area to increase the total fi sh stock as a means to increase the fish catches. nutritional status and income of the population residing in the catchment area. During the first phase of the project several species were identified as suitable in terms of expected impact on fish yields and expected minimum effect on native fauna. Actual stocking of newly imported fish species by the project started in June 1991.
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