Spatial distribution of sister species of vesicomyid bivalves Calyptogena okutanii and Calyptogena soyoae along an environmental gradient in chemosynthetic biological communities in Japan

Autor: Shigeaki Kojima, Hiroshi Miyake, Eriko Seo, Yoshimi Takahashi, Takao Yoshida, Katsunori Fujikura, Hiromi Watanabe
Rok vydání: 2012
Předmět:
Zdroj: Journal of Oceanography. 69:129-134
ISSN: 1573-868X
0916-8370
Popis: Vesicomyid bivalves have a substantial biomass in deep-sea chemosynthetic biological communities in the Pacific. Using a novel multiplex-PCR (mPCR) method to identify the co-occurring vesicomyids in Sagami Bay, we analyzed the distribution of Calyptogena okutanii and Calyptogena soyoae along environmental gradients. All the known distributions of C. okutanii indicated the different preferences in salinity and temperature to those of C. soyoae, and in Sagami Bay, depth seemed to be an important environmental factor, too. Although the concentration of hydrogen sulfide in sediment was not examined, our results showed that the distributions of these two Calyptogena clams were affected by salinity and temperature.
Databáze: OpenAIRE