The Dr. Fridtjof Nansen Programme 1975–1993: Investigations of Fishery Resources in Developing Regions

Sætersdal, G. ;Bianchi,  G.;Strømme, T. ;Venema, S. C.;Fishery and Aquaculture Economics and Policy Division

The Dr. Fridtjof Nansen Programme 1975–1993: Investigations of Fishery Resources in Developing Regions

FAO Fisheries Technical Paper 391

Year of publication 1999

Pages 434 p.

Author Sætersdal, G. ;Bianchi, G.;Strømme, T. ;Venema, S. C.;Fishery and Aquaculture Economics and Policy Division

Publisher FAO ;

Product type Book (series)

Category Technical study

ISBN 92-5-104377-9

Series title FAO Fisheries Technical Paper

Series number 0429-9345|20-70-7010 - T391

Edition 1

Full item page

Synopsis (short abstract) This document provides a review of practically all the surveys carried out with the research vessel “Dr. Fridtjof Nansen” from 1975 to the middle of 1993 in the Indian, Atlantic and Pacific Oceans. Complete lists of all surveys carried out by this R/V, and reports produced and of scientific staff participating in the surveys are provided as annexes. Chapter 2 provides an overview of survey methodology and also describes the development in the acoustic equipment used and associated problems. Particular emphasis is placed on the surveys carried out in the Arabian Sea, supplemented by a review of surveys carried out by the sister ship “Rastrelliger” off Southwest India. The results of the first surveys of the “Dr. Fridtjof Nansen” are revised on the basis of the latest knowledge of acoustic equipment and properties and consequently many results of the earlier surveys have been sized down. Other areas covered are: the Bay of Bengal off Bangladesh and Myanmar, sea areas around peni nsular Malaysia and areas off western Thailand and Indonesia; the Southwest Indian Ocean; the Atlantic Ocean off Northwest Africa, Southwest Africa, with special emphasis on surveys off Angola and Namibia and the shelf area between Suriname and Venezuela; shelf areas in the Pacific Ocean between Southern Mexico and Colombia. The R/V Dr. Fridtjof Nansen has provided some of the best groundtruthing of the rough estimates of the potential resources first published by FAO in 1970. In Chapter 10 t he survey results are compared with those early guesses and estimates based on acoustic and trawl surveys of the productivity per unit area of small pelagic and demersal fish are provided. The results of the surveys have also been used for analyses of demersal fish assemblages, reviewed in the various chapters by area and in Chapter 10 and for the production of a number of FAO Fish Identification Sheets and Field Guides, of which the references are given in Chapter 11.

Cite this content as:

Sætersdal, G.; Bianchi, G.; Strømme, T.; Venema, S.C.The DR. FRIDTJOF NANSEN Programme 1975–1993. Investigations of fishery resources in developing countries. History of the programme and review of results. FAO Fisheries Technical Paper. No. 391. Rome, FAO. 1999. 434p.

Language English

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The survey tracks and fishing stations worked are shown in Figure 1. When steaming south after departure from Dakar on August 17 the shelf was followed so that a track along the banks was obtained.
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A Workshop to plan the 1999 R/V DR. FRIDTJOF NANSEN surveys in the northern CECAF area and the standardization of acoustic surveys in the region was held in Casablanca, Morocco from 18 to 22 October 1999. This Workshop was a follow-up to the Workshop "A review of the surveys off Northwest Africa in the 1990s" held in Bergen in 1998 (FAO, 1998). The countries represented were the Gambia, Mauritania, Morocco and Senegal as well as Norway, Russia and FAO. The purpose of the Workshop was to plan the 1999 acoustic survey with the R/V DR. FRIDTJOF NANSEN off Northwest Africa in November-December 1999 and to discuss the standardization of acoustic surveys in the Northern CECAF area as well as following-up on other recommendations from the meeting in Bergen in 1998. The Workshop stressed the usefulness of the results from the DR. FRIDTJOF NANSEN surveys and strongly recommended that the surveys be continued. The Workshop considered that the use of the results for stock assessment could st ill be increased at a regional level and therefore recommended to establish a Working Group on assessment of small pelagic resources in the same region as covered by the DR. FRIDTJOF NANSEN surveys. The Working Group on Guidelines provided a first draft of the Guidelines for acoustic surveys in Northwest Africa. It was recommended that the Working Group should meet again before the next acoustic survey in the year 2000.

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