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Species specific irrigatory efficiency in Cardium (Cerastoderma) edule (L.) and C. lamarcki (Reeve) responding to different environmental temperatures
Brock, V.; Kofoed, L.H. (1987). Species specific irrigatory efficiency in Cardium (Cerastoderma) edule (L.) and C. lamarcki (Reeve) responding to different environmental temperatures. Biol. Oceanogr. 4(3): 211-225
In: Biological Oceanography. Crane, Russak: New York. ISSN 0196-5581, more

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Keywords
    Acclimation; Oxygen consumption; Temperature effects; Cardium Linnaeus, 1758 [WoRMS]; Marine

Authors  Top 
  • Brock, V.
  • Kofoed, L.H.

Abstract
    Clearance rates and oxygen consumption were studied simultaneously for co-occurring individuals of two closely related Cardium species at different temperatures. When acclimated to temperatures of 4-23°C, oxygen consumption increased at an equal rate for both species at exposure temperatures throughout the range 2-20°C. At exposure temperatures 20-28°C, C. edule respired at a higher rate than C. lamarcki . Both species exhibited maximal respiration at 24°C. Oxygen consumption at a given exposure temperature was lower for both species when adapted to lower temperatures than to higher. The clearance rate of suspended cells measured synchronously with oxygen consumption showed species specific differences. The irrigatory efficiency of C. edule was higher than that of C. lamarcki in the exposure temperature range 4-16 °C while the irrigatory efficiency of C. lamarcki exceeded that of C. edule in the exposure range 16-28°C.

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