National Aquatic Resources Research & Development Agency (NARA)

Recent trends in environmental degradation in the coastal areas developed for shrimp culture (Record no. 9437)

MARC details
000 -LEADER
fixed length control field nam a22 7a 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20181226140623.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 181214b xxu||||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Transcribing agency NARA
100 ## - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 17534
Personal name Corea, A.S.L.E.
245 ## - TITLE STATEMENT
Title Recent trends in environmental degradation in the coastal areas developed for shrimp culture
260 ## - PUBLISHER, DISTRIBUTION, ETC.
Name of publisher, distributor, etc. Sri Lanka Association for the Advancement of Science,
Place of publication, distribution, etc. Sri Lanka,
Date of publication, distribution, etc. 2002,
300 ## - PHYSICAL DESCRIPTION
Extent 148-158p.
440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE
9 (RLIN) 17634
Title South Asian Regional Workshop
520 ## - SUMMARY, ETC.
Summary, etc. Shrimp industry in Sri Lanka developed rapidly during the last decade resulting in rapid degradation of the coastal environment in the North Western province. The land allocation for shrimp culture was less than 500ha in 1985 and increased to over 4000ha by 2000.<br/>Reduction of environmentally sensitive areas has caused a reduction in Biodiversity. The mangrove cover has reduced by 41% due to shrimp culture activities. Migratory bird populations visiting the Mundel area have reduced by 48%. The species diversity in the lagoon fishery has reduced from 19 species in 1991 with catches dominated by Nematolosa nasus to 14 species in 2000 with catches dominated by Arius species. The only shrimp species caught in the Mundel lagoon is Peneaus monodon in small numbers while there was a good fishery for Peneaus indicus and Peneaus semisulcatus in the past.<br/>The Mundel lagoon area has been reduced by 9%. Construction of dykes obstructing natural water drainage has increased the incidence of floods in the area. The water quality deterioration caused by direct discharge of-effiuents to the surrounding water bodies, has resulted in elevation of BOD levels, Nitrite, Ammonia and sulphide levels as well as the water pH and Suspended solid concentrations.<br/>Populations of several pathogenic viral and bacterial species in the coastal area have increased even threatening the wild crustaceans in the natural environment. Use of probiotics to treat water as well as use of chlorine and lime without any technical guidance has resulted in further'aggravating the problems.<br/>Importance of introducing a monitoring system and educating farmers and their technical consultants could help in enhancing production with lesser impacts on the environment.<br/>
700 ## - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 17625
Personal name Jayasinghe, J.M.P.K.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Research Papers
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        NARA Main Library NARA Main Library Rare Books Collection 18.12.2018 RP0058   RP0058 18.12.2018 RP0058 18.12.2018 Research Papers

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