Decline in Diversity and Production of Exploited Fishery Resources in Vembanad Wetland System: Strategies for Better Management and Conservation

This paper describes the fishery catch structure of Vembanad wetland system during August 2012 to July 2013. The estimates of fishery production indicated an annual landing of 4387.31 t, in which 480.98 t and 3906.33 t contributed by southern and northern zone of Vembanad respec- tively. Eighty spec...

Täydet tiedot

Bibliografiset tiedot
Päätekijä: Chalil Veedu Asha; Payattukattil Sukumaran Suson; Cleetus Irumpanath Retina and Sivasankaran Bijoy Nandan
Aineistotyyppi: Printed Book
Julkaistu: Open Journal of Marine Science, 2014
Aiheet:
FISHERY PRODUCTION; > RAMSAR SITE
Linkit:http://10.26.1.76/ks/004986.pdf
LEADER 02403nam a22001457a 4500
100 |a Chalil Veedu Asha; Payattukattil Sukumaran Suson; Cleetus Irumpanath Retina and Sivasankaran Bijoy Nandan  |9 23265 
245 |a Decline in Diversity and Production of Exploited Fishery Resources in Vembanad Wetland System: Strategies for Better Management and Conservation 
260 |b Open Journal of Marine Science,  |c 2014 
300 |a p.344-357  |b vol.4 
520 |a This paper describes the fishery catch structure of Vembanad wetland system during August 2012 to July 2013. The estimates of fishery production indicated an annual landing of 4387.31 t, in which 480.98 t and 3906.33 t contributed by southern and northern zone of Vembanad respec- tively. Eighty species of finfishes, five species of penaeid shrimps, three species of palaemonid prawns and two species of crabs were identified from the study period. The catch per unit effort (CPUE) value was maximum for gill net (3.04 kg∙h −1 ) followed by stake net (2.43 kg∙h −1 ), Chinese dip net (2.01 kg∙h −1 ), seines (1.2 kg∙h −1 ), cast net (0.72 kg∙h −1 ) and hook and line (0.34 kg∙h −1 ). Bi- ological integrity and fishery production of estuaries in the country are declining mainly due to various man induced activities. Thaneermukkom barrage, the salinity barrier, constructed across the Vembanad wetland system in 1976, transforming the water body into two distinct ecosystems, a fresh water zone on the south and a brackish water zone on the north, resulting in gross changes in physical, chemical and biological entity of the aquatic ecosystem. In the southern zone of Vem- banad the marine fish species were less available with the closure of the barrage period. There are signs of decline of the Vembanad fishery resources, evident in the lesser number of species and de- cline of fishery production. This will lead to biodiversity loss, fish stock reduction and will ulti- mately affect the livelihood support of the traditional fishers to a large extent, besides affecting other ecological services. A better conservation measure must be implemented for maintaining the sustainable fishery resources in Vembanad 
650 |a FISHERY PRODUCTION;   |a RAMSAR SITE  |9 23266 
856 |u http://10.26.1.76/ks/004986.pdf 
942 |c KS 
999 |c 75321  |d 75321 
952 |0 0  |1 0  |4 0  |7 0  |9 67304  |a MGUL  |b MGUL  |d 2015-11-17  |l 0  |r 2015-11-17  |w 2015-11-17  |y KS 

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