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Permanent URI for this communityhttps://hdl.handle.net/20.500.14310/1

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Browsing Journals by Subject "fisheries"

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    Development and application of the fisheries vulnerability assessment tool (Fish Vool) to tuna and sardine sectors in the Philippines
    Jacinto, Melchor R.; Songcuan, Al Jayson G.; Yip, Graceous Von; Santos, Mudjekeewis (Elsevier, 2015-01)
    Climate change studies in the Philippines are emerging fast, focusing on different fields of sciences. However, studies that address the fisheries sector remain insufficient. Here, we described a sector-based fisheries vulnerability assessment tool (Fish Vool) to evaluate the vulnerability of primary fishery commodities. Tool demonstration and validation were conducted in General Santos and Zamboanga City, which are the primary producers of tuna and sardine, respectively. Fish Vool revealed an overall medium vulnerability (low exposure, medium sensitivity, and low adaptive capacity) for both sectors. The vulnerability assessment of the tuna and sardine sectors emphasizes the potential of Fish Vool to assess climate change vulnerability for primary commodities and other fishery sectors.
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    Hidden diversity in sardines: Genetic and morphological evidence for cryptic species in the goldstripe sardinella, Sardinella gibbosa (Bleeker, 1849)
    Thomas, Rey C.; Willette, Demian; Carpenter, Kent; Santos, Mudjekeewis (Public Library of Science, 2014-01-08)
    Cryptic species continue to be uncovered in many fish taxa, posing challenges for fisheries conservation and management. In Sardinella gibbosa, previous investigations revealed subtle intra-species variations, resulting in numerous synonyms and a controversial taxonomy for this sardine. Here, we tested for cryptic diversity within S. gibbosa using genetic data from two mitochondrial and one nuclear gene regions of 248 individuals of S. gibbosa, collected from eight locations across the Philippine archipelago. Deep genetic divergence and subsequent clustering was consistent across both mitochondrial and nuclear markers. Clade distribution is geographically limited: Clade 1 is widely distributed in the central Philippines, while Clade 2 is limited to the northernmost sampling site. In addition, morphometric analyses revealed a unique head shape that characterized each genetic clade. Hence, both genetic and morphological evidence strongly suggests a hidden diversity within this common and commercially-important sardine.