A Global Analysis of the Relationship between Farmed Seaweed Production and Herbivorous Fish Catch
| Autor: | E. James Hehre, Jessica J. Meeuwig |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
Asia Coral reef fish Fisheries lcsh:Medicine Marine and Aquatic Sciences Marine Biology 010603 evolutionary biology 01 natural sciences Tanzania Geographical Locations Animals Marine Fish Herbivory lcsh:Science Reef Asia Southeastern Ecosystem geography Multidisciplinary geography.geographical_feature_category biology Ecology Coral Reefs 010604 marine biology & hydrobiology lcsh:R Marine habitats Fishes Organisms Tropics Biology and Life Sciences Agriculture Coral reef Models Theoretical Plants biology.organism_classification Seaweed Fishery Seaweed farming Seagrass Habitat Africa People and Places Vertebrates Earth Sciences Reefs lcsh:Q Research Article |
| Zdroj: | PLoS ONE PLoS ONE, Vol 11, Iss 2, p e0148250 (2016) |
| ISSN: | 1932-6203 |
| Popis: | Globally, farmed seaweed production is expanding rapidly in shallow marine habitats. While seaweed farming provides vital income to millions of artisanal farmers, it can negatively impact shallow coral reef and seagrass habitats. However, seaweed farming may also potentially provide food subsidies for herbivorous reef fish such as the Siganidae, a valuable target family, resulting in increased catch. Comparisons of reef fish landings across the central Philippines revealed that the catch of siganids was positively correlated to farmed seaweed production whilst negatively correlated to total reef fish catch over the same period of time. We tested the generality of this pattern by analysing seaweed production, siganid catch, and reef fish catch for six major seaweed-producing countries in the tropics. We hypothesized that increased seaweed production would correspond with increased catch of siganids but not other reef fish species. Analysis of the global data showed a positive correlation between farmed seaweeds and siganids in Southeast Asia (Indonesia, Malaysia, and the Philippines) but not Africa (Tanzania and Zanzibar), or the Western Pacific (Fiji). In Southeast Asia, siganid catch increased disproportionately faster with seaweed production than did reef fish catch. Low continuity, sporadic production and smaller volumes of seaweed farming may explain the differences. |
| Databáze: | OpenAIRE |
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