Comparative strategies in community-based mangrove rehabilitation programs in the Philippines
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Philippine Mangroves have decreased from around 500,000 ha at the turn of the century to 132,000 ha in 1990. Given the varied and important socioeconomic and ecolgical functions of mangroves including harvest offroestry and fishery products, costal protection, erosion control and pollution abatement, there is a need to rehabilitate degraded areas. Half of the mangrove areas lost in the las three decades can be traced to the construction of 141'000 ha of brackish water ponds monocropped to mik fish or shrimp. Integrated aquasilviculture is an alternative, aithough experimental, technology that combines both the fishries and forestry functions of the mangrove ecosystem.This paper describes four models of mangrove rehabilitation and conservation with varying degrees of community participation in the philippines-monoculture mangrove planting in Kalibo, Aklan; mixed secies planting in Silay City, Negros Occedental; aquasiliviculture in Puerto Galere, Mindoro Oriental (family) and in Hinbaan, Negros Occidental (association)- and compares their strengths, weaknesses, opportunities and threats.
Primavera, J. H., & Agbayani, R. F. (1997). Comparative strategies in community-based mangrove rehabilitation programs in the Philippines. In N. H. Phan, N. Ishwaran, T. S. Hoang, H. T. Nguyen, & S. T. Mai (Eds.), Community Participation in Conservation, Sustainable Use and Rehabilitation of Mangroves in Southeast Asia. Proceedings of the ECOTONE V, 8-12 January 1996, Ho Chi Minh City, Vietnam (pp. 229–243). Hanoi, Vietnam: United Nations Educational Scientific and Cultural Organisation; Japanese Man and the Biosphere National Committee; Mangrove Ecosystem Research Centre.
PublisherUnited Nations Educational Scientific and Cultural Organisation; Japanese Man and the Biosphere National Committee; Mangrove Ecosystem Research Centre
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BookAQ Hurtado-Ponce, MR Luhan & NG Guanzon Jr. - 1992 - Aquaculture Department, Southeast Asian Fisheries Development CenterThis practical book on the seaweeds of Panay, Philippines, acquaints and provides information to members of the academe and research institutions, policy makers, fishermen and businessmen regarding the taxonomy, distribution, ecology and economic importance of these resources. It consists of 4 major parts: (1) Introduction, which reviews the literature, habitat, distribution, morphological structure and reproduction; 2) Classification, which describes the classes to which the seaweeds generally belong; 3) Collection and preservation, which explains the procedure used in treatment of specimens; and, 4) Taxonomic list. A glossary is included, covering technical terms used. All species listed and described in this book are macrobenthic and were collected in Panay and Guimaras Islands.
Morphometric and morphomeristic variations in five populations of indigenous Celebes goby Glossogobius celebius (Perciformes: Gobiidae) from Southern Luzon, Philippines MNC Corpuz, MVC Camacho & PP Ocampo -
Philippine Agricultural Scientist, 2013 - College of Agriculture, University of the Philippines Los BañosTo elucidate the population structure and pattern of morphological divergence of the indigenous Celebes goby Glossogobius celebius (Valenciennes, 1837), morphometric and morphomeristic characters of this species were compared among populations collected from five study sites in Southern Luzon, Philippines. Univariate analysis of variance confirmed significant differences among populations for 20 out of 23 allometrically-transformed metric characters (P<0.05), while nine meristic traits of five populations were comparatively homogeneous (P>0.05). Intrapopulation variability was very low (6.81-7.21%) for each location. Multivariate analysis of variance determined a very high significant group variability (P<0.05). Also, principal component analysis (PC1=36.60%; PC2=18.34%) and canonical variate analysis (CV1=44.59%; CV2=37.30%) identified the 2 super(nd) dorsal fin length, anal fin length, and the 2 super(nd) dorsal fin origin as the main significant contributors of population differentiation. Derived classification functions correctly classified an average of 68% individuals into their original groups. The canonical variate analysis plot exhibited high isolation of lacustrine populations (Lake Taal and Laguna de Bay) from riverine populations (Dampalit River, Alitaaw River and Pansipit River), with the latter having longer metric characters. Likewise, squared Euclidean distance similarity using metric data clearly produced two clusters representing both river and lake populations. This morphological divergence is suggested to be environmentally-induced (phenotypic plasticity) primarily by the differences in flow rate and temperature of the study sites.
Conference paperA Young & E Serna - In FB Davy & M Graham (Eds.), Bivalve culture in Asia and the Pacific: proceedings of a workshop held in Singapore, 16-19 February 1982, 1982 - International Development Research CentreNatural populations of oysters and mussels have long been gathered for food by coastal communities in the Philippines, and bivalve farming began in early 1900. The first farms were no more than a series of bamboo poles inserted in the muddy bottom of Manila Bay in Bacoor Cavite. In May 1934, the Bureau of Fisheries and Aquatic Resources (BFAR) established a pilot oyster farm in Binakayan, Cavite Province, Luzon, and a lucrative industry soon grew up. By 1950, about 200 ha of private farms existed in Bacoor Bay, but, in the late 1950s, mussels appeared on the farms and threatened the industry. The response of BFAR was to initiate farms for mussels, and the results prompted the establishment of a mussel industry that proved to be at least as lucrative as the oyster industry. Farming of windowpane oysters (Placuna placenta) began in the late 1940s in the tide flats of Bacoor Bay, the delicate, translucent Placuna shells being used for window glazing and shellcraft. In the early 1970s, however, the bay became increasingly polluted, the stocks could not survive, and they are still not found in the waters of the bay.