Mapping an ecosystem service: A quantitative approach to derive fish feeding ground maps**This study was supported by Norwegian Financial Mechanism (project No. LT0047) and BONUS PREHAB
| Autor: | Martynas Bučas, Darius Daunys, Egidijus Bacevičius, Andrius Šiaulys |
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| Rok vydání: | 2012 |
| Předmět: |
Biomass (ecology)
Atmospheric Science Baltic Sea Aquatic ecosystem Fish diet Seabed quality Ocean Engineering Random forests Aquatic Science Oceanography Modelling Predation Commercial fish feed Ecosystem services Fishery Set (abstract data type) Baltic sea Macrozoobenthos Fish Environmental science |
| Zdroj: | Oceanologia. 54(3):491-505 |
| ISSN: | 0078-3234 |
| DOI: | 10.5697/oc.54-3.491 |
| Popis: | This study presents a quantitative approach to mapping benthophagous fish feeding grounds. This approach combines the spatial biomass distribution of benthic prey items and their importance for the diets of predators. A point based biomass data of macrozoobenthos together with a set of environmental factors was used to develop Random Forests models that produce continuous biomass distribution layers for individual prey species. Depending on the diet composition and the importance of prey for fish feeding, these layers are overlaid and an integrated GIS map of the seabed showing the quality of feeding grounds is generated. These maps provide a useful basis for conservation and marine spatial planning. In addition, this method could be applied to the mapping of resources used by other benthophagous organisms. The method is presented using the example of three common Baltic fish species: cod, flounder and viviparous eelpout. |
| Databáze: | OpenAIRE |
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