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Respiration rates of the Japanese pearl oyster, Pinctada fucata martensii , feeding on Pavlova lutheri and Chaetoceros gracilis
Author(s) -
Tomaru Yuji,
Ebisuzaki Sachi,
Kawabata Zen'ichiro,
Nakano Shinichi
Publication year - 2002
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1046/j.1355-557x.2001.00640.x
Subject(s) - biology , respiration , respiration rate , botany , pinctada fucata , pearl oyster , pearl , philosophy , theology
We examined the relationship between algal food ( Chaetoceros gracilis and Pavlova lutheri ) density and the respiration rate of Japanese pearl oysters, Pinctada fucata martensii . The respiration rate increased consistently with food density, independent of algal species. However, the respiration rate decreased at food densities >10 7 µm 3 mL −1 , suggesting inactivation of the digestion system by the high‐food density. Our results suggested that eutrophicated or turbid environments may be unfavourable to the growth of P. fucata martensii .