Normal view MARC view ISBD view

Determinants of fishery over exploitation in Laguna Lake / by Alice T. Valerio\

By:

Valerio, Alice T [author]

Material type: Text

TextLanguage: English Publication details: Los Baños, Laguna : 1990. Cavite State University- Main Campus,Description: 164 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

639.27 V23 1990

Online resources:

Click here to view thesis abstract and table of contents

Abstract: VALERIG, ALICE T. University of the Philippines at Los Banos, March 1990. Determinants of Fishery Overexploitation in Laguna Lake. Major Professor: Dr. Jerome F. Sison This study examined the factors affecting the overexploitation of fishery in Laguna Lake including the determination of the interlocking environmental and socio economic issues affecting its watershed resources. Demographic profiles of the lakeshore population and the general environmental conditions were examined to establish the relationships of the major determinants. Laguna Lake is now considered as dying or overexploited. The diminishing fishery productivity is a manifestation of the exploitation which is further evidenced by the disappearance of some endemic fish species. The lake’s water is adversely affected by pollution that comes largely from domestic effluents, industrial activities and agricultural intensification. The empirical results indicate that total fishery production is declining. The factors that have Significant effects on fishery overexploitation are the number of fishermen, number of boats in operation, forest cover, price of fish and the population of livestock (swine, cattle, and chicken). The significance of the level of fishing effort confirmed the popular allegation that Laguna Lake is overexploited. It also reflected that it has already reached the maximum sustainable yield since any attempt to increase the fishing effort still results in a dwindling catch. The rapid degradation of Laguna Lake stems mainly from increased population and its attendant problems. As population increases beyond sustainable support capacity of the resource base, the greater is the need to exploit the resources. To protect “he welfare of the lakeshore families and to preserve the lake, a unified policy on fishery management is necessary. Effective implementation of policies can be attained througn proper coordination among concerned agencies such as the Laguna Lake Development Authority, Bureau of Fisheries and Aquatic Resources, Department of Environment and Natural Resources and others. This must be done in close consultation with local government units both at the town and provincial levels. As suagestions for further research, the optimum area for fishpen Operation in relation to oven area for capture fishery as well as the Optimum stock density per unit area must be examined to rationalize the fishpen industry and to democratize the use of the lake’s resources, Land use studies must also be conducted to properly allocate and designate the use of lands within the lake’s watershed. The appropriate user fees for the lake resources must also be determined,

Average rating: 0.0 (0 votes)

Holdings ( 1 )
Title notes ( 4 )

Holdings
Item type	Current library	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	639.27 V23 1990 (Browse shelf(Opens below))		Link to resource	Room use only	T-1138		00006159

Thesis (Ph.D.--Agricultural Economics) University of the Philippines

Includes bibliographical references.

VALERIG, ALICE T. University of the Philippines at Los Banos, March 1990. Determinants of Fishery Overexploitation in Laguna Lake. Major Professor: Dr. Jerome F. Sison

This study examined the factors affecting the overexploitation of fishery in Laguna Lake including the determination of the interlocking environmental and socio economic issues affecting its watershed resources. Demographic profiles of the lakeshore population and the general environmental conditions were examined to establish the relationships of the major determinants.

Laguna Lake is now considered as dying or overexploited. The diminishing fishery productivity is a manifestation of the exploitation which is further evidenced by the disappearance of some endemic fish species.

The lake’s water is adversely affected by pollution that comes largely from domestic effluents, industrial activities and agricultural intensification. The empirical results indicate that total fishery production is declining. The factors that have Significant effects on fishery overexploitation are the number of fishermen, number of boats in operation, forest cover, price of fish and the population of livestock (swine, cattle, and chicken).

The significance of the level of fishing effort confirmed the popular allegation that Laguna Lake is overexploited. It also reflected that it has already reached the maximum sustainable yield since any attempt to increase the fishing effort still results in a dwindling catch.

The rapid degradation of Laguna Lake stems mainly from increased population and its attendant problems. As population increases beyond sustainable support capacity of the resource base, the greater is the need to exploit the resources. To protect “he welfare of the lakeshore families and to preserve the lake, a unified policy on fishery management is necessary. Effective implementation of policies can be attained througn proper coordination among concerned agencies such as the Laguna Lake

Development Authority, Bureau of Fisheries and Aquatic Resources, Department of Environment and Natural Resources and others. This must be done in close consultation with local government units both at the town and provincial levels.

As suagestions for further research, the optimum area for fishpen Operation in relation to oven area for capture fishery as well as the
Optimum stock density per unit area must be examined to rationalize the fishpen industry and to democratize the use of the lake’s resources, Land use studies must also be conducted to properly allocate and designate the use of lands within the lake’s watershed.

The appropriate user fees for the lake resources must also be determined,

Submitted to the University Library 05/10/2007 T-1138