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Respiratory rate and assessment of secondary production in the holothuroid Holothuria tubulosa (Echinodermata) from Mediterranean seagrass beds
Coulon, P.; Jangoux, M.; Bulteel, P. (1992). Respiratory rate and assessment of secondary production in the holothuroid Holothuria tubulosa (Echinodermata) from Mediterranean seagrass beds. Mar. Ecol. (Berl.) 13(1): 63-68. https://dx.doi.org/10.1111/j.1439-0485.1992.tb00340.x
In: Marine Ecology (Berlin). Blackwell: Berlin. ISSN 0173-9565; e-ISSN 1439-0485, more
Peer reviewed article  

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Keywords
    Holothuroidea [WoRMS]
    Marine/Coastal
Author keywords
    HOLOTHUROIDS; RESPIRATORY RATE; SECONDARY PRODUCTION; SEAGRASS BEDS

Authors  Top 
  • Coulon, P.
  • Jangoux, M., more
  • Bulteel, P.

Abstract
    Respiration in Holothuria tubulosa was investigated in individuals from the Posidonia oceanica meadow off Lacco Ameno (Ischia Island, Italy). Respiratory rates increase with increasing body weight and increasing sea water temperature. Oxygen consumption of an average individual (7g dw body wall) ranges from 0.409 (14 °C) to 1.300 (26 °C) mg O2· h-1. Data on population density, mean size of individuals, and annual sea water temperature variations allow an assessment of holothuroid production. Values of 45.65 and 13.75 kJ · m-2· y-1 were calculated for shallow (3 to 10 m) and deep (25 to 33 m) areas of the Posidonia meadow, respectively. Holothuroid production shows a bathymetric pattern similar to primary production of the Posidonia-epiphytes complex and the production of Posidonia litter.

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