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Title: A multidisciplinary study of reef-associated fisheries depletion in Philippines
Author: Lavides, Margarita N.
ISNI:       0000 0004 2669 9323
Awarding Body: University of Newcastle Upon Tyne
Current Institution: University of Newcastle upon Tyne
Date of Award: 2009
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Little is known about long term trends in fish abundance in the most biodiverse marine ecosystem (coral reef) in one of the most marine biodiverse regions on Earth (the Philippines). I analysed finfish family level catch per unit effort (CPUE) data for 1950-2007 from hook-and-line and gillnet based on fishers' knowledge and underwater visual census (UVC) numerical abundance data for 1985-2007 from Pamilacan and Balicasag islands; and CPUE species level landings data for 1983 2005 from Davao Gulf and the Camotes Sea. Linear mixed models and generalised least squares showed that in CPUE data large predators (e.g. Epinephehnae, Lutjanidae, Carangidae and Lethrinidae) and Caesionidae declined the most while in UVC abundances other common target families (e.g. Acanthuridae, Caesionidae and Scaridae) declined the most. Declines in UVC data of large predators (e.g. Epinephelinae, Carangidae and Lethrinidae) were not detected, possibly because these groups were depleted prior to the period as shown by mean abundances of 0-
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available