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A Review of the Results of Demersal Fish Resources Surveys Around Sri Lanka

By Sivasubramaniam, K.

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Book Id: WPLBN0000066814
Format Type: PDF eBook
File Size: 0.5 MB
Reproduction Date: Available via World Wide Web.
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Title: A Review of the Results of Demersal Fish Resources Surveys Around Sri Lanka  
Author: Sivasubramaniam, K.
Volume:
Language: English
Subject: United Nations., Food and Agriculture Organization of the United Nations. FAO agriculture series, Agriculture
Collections: United Nations Food and Agriculture Organization Collection
Historic
Publication Date:
Publisher: Food and Agriculture Organization of the United Nations; Digitizer: Fao

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Sivasubramaniam, K. (n.d.). A Review of the Results of Demersal Fish Resources Surveys Around Sri Lanka. Retrieved from http://worldebookfair.com/


Description
Nutrition Reference Publication

Summary
Electronic reproduction.

Excerpt
Excerpt: Tillaboutthree decades ago,thedemersalfishery ofSri Lankamadeverysignificant contributions to fish production and was probably only exceeded by beach seine and small mesh gillnet fisheries. Bottom handlining was a very popular method for catching big demersal fishes like emperor fishes (Lethrinids) and snappers (Lutjanids). Bottom handlining was carried out with ?vallams? towed by mother ships to the fishing grounds close to the continental slope (Medcof, 1956). Bottomsetgillnets made of natural fibres and bottom longlining were very common in the Jaffna Peninsula and were occasionally practised in Trincomatee and Puttalam (Pearson, 1923). Chaplin (1 958) reported that beach seining and handlining were the primary fishing methods in Sri Lanka in the mid-50s. Longlining for large pelagics gained popularity in the late SOs and driftnetting for large pelagics improved markedly after the introduction of synthetic net materials into Sri Lanka around 1963. The traditional distant water trawl fishery on the Wadge Bank had to be suspended in the late 70s. Thus over the last two or three decades, the demersal fishery in Sri Lanka has receded to a position of relatively low significance. Recent fisheries development activities have been geared to readjust the imbalance in the exploitation of available marine resources. The most recent survey of the fish resources around Sri Lanka (?Dr. Fridtjof Nansen? survey, 1978?1980) revealed the availability of sufficient demersal resource potential for increased exploitation. At present, the Bay of Bengal Programme is involved in bottom longline trials around Sri Lanka but the catch rates have not been up to the level expected from the estimated potential though commercial operations of bottom longlining appear to indicate that they are viable economically.

 

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