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Energy flow through an Amphiura filiformis (Ophiuroidea: Echinodermata) population in Galway Bay, west coast of Ireland: a preliminary investigation
O'Connor, B.D.S.; Bowmer, T.; McGrath, D.; Raine, R. (1986). Energy flow through an Amphiura filiformis (Ophiuroidea: Echinodermata) population in Galway Bay, west coast of Ireland: a preliminary investigation, in: Muus, K. (Ed.) Proceedings of the 20th European Marine Biology Symposium: Nutrient Cycling. Processes in Marine Sediments, Hirtshals, Denmark, 9-13 September 1985. Ophelia: International Journal of Marine Biology, 26: pp. 351-357
In: Muus, K. (Ed.) (1986). Proceedings of the 20th European Marine Biology Symposium: Nutrient Cycling. Processes in Marine Sediments, Hirtshals, Denmark, 9-13 September 1985. Ophelia: International Journal of Marine Biology, 26. Ophelia Publications: Helsingør. ISBN 87-981066-4-3. 477 pp., meer
In: Ophelia: International Journal of Marine Biology. Ophelia Publications: Helsingør. ISSN 0078-5326, meer
Peer reviewed article  

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Documenttype: Congresbijdrage

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  • O'Connor, B.D.S., meer
  • Bowmer, T.
  • McGrath, D.
  • Raine, R.

Abstract
    The burrowing ophiuroid Amphiura filiformis (O.F. Müller) forms a stable, high density population in Galway Bay which is composed of one functional adult group containing many year classes. Recruitment rates are very low and annual somatic growth is almost entirely restricted to arm regeneration. The energy input to arm regeneration and to gonad production is estimated and respiration calculated from laboratory assays. Estimates of energy flow show that 77.4 % of energy is respired, 16% goes to arm regeneration and 6.6% to gonad output. A P:B ratio of 1.97 is obtained for the Amphiura population and this is compared with values obtained in the literature for other echinoderms.

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