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A Prototype Study for Evaluation of Algal Beds

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  • Algal beds are a key component of coastal ecosystems. In terms of inshore fisheries, algal beds are important as: spawning grounds for fishes; habitats for fry; and sources of small prey animals for fishes. To maintain robust fish catches, it is considered worthwhile to maintain the functions of algal beds, and even to promote the growth of more algal beds. If the value of each of the many types of algal beds can be measured using economic measurements, by using fish for example, the design of a fishery area can be planned effectively. The structure and function of algal beds however, are very complex: we lack reliable scientific knowledge about their functions and guidelines for the artificial development of algal beds. We commenced a study to evaluate the economic value of the algal beds at Oshoro Bay, Hokkaido from 2001. We described the morphological complexity of algae and species compositions of phytal animals that inhabit algae. The methods employed here, and the potential application of the data obtained from this study to the economic evaluation of algal beds, is discussed.
  • KEYWORDS: Fisheries economics, Animal size, Fisheries Infrastructure, Interstitial size, Phytal animals, Algal bed
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  • Kaneko, Tomomi, Yoshikazu Takashima. 2004. A Prototype Study for Evaluation of Algal Beds. Peer Review: No. In: Proceedings of the Twelfth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 20-30, 2004, Tokyo, Japan: What are Responsible Fisheries? Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2004. CD ROM. ISBN 0-9763432-0-7
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