Seasonal changes in the size and composition of the fish yield from reefs around Apo Island, Central Philippines, with notes on methods of yield estimation
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説明
<jats:p>Fish yields from Apo Island, Central Philippines were assessed based on detailed quantitative analyses of fish landings, with specific reference to seasonal changes in the size and nature of the yield in terms of familial composition and degree of reef association of contributing species. The total estimated annual yield is 24‐861 km<jats:sup>−2</jats:sup> year<jats:sup>−1</jats:sup> (±12.75, 95% C.I.)‐ Of the 39 families harvested, yields are dominated throughout the year by two, the Carangidae (40%) and the Acanthuridae (23.6%). The yield is likewise consistently dominated by two specific groups: reef‐associated, 39.1%, and reef planktivores, 23.1%. Reef species comprise only 17‐1%. Seasonal differences in yields were only detected in the Carangidae and the reef‐associated species group. Apo Island reefs appear to be highly productive. Possible reasons for this are discussed. The variety of methods used for estimating reef fish yields, however, make comparisons difficult. Standardized procedures are therefore suggested.</jats:p>
収録刊行物
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- Journal of Fish Biology
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Journal of Fish Biology 32 (6), 881-893, 1988-06
Wiley