Photosymbiotic ascidians in Singapore: turbid waters may reduce living space

Autor: Shih-Wei Su, Euichi Hirose, Serina Lee Siew Chen, Michael Hin-Kiu Mok
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: ZooKeys, Vol 305, Iss 0, Pp 55-65 (2013)
Druh dokumentu: article
ISSN: 1313-2989
1313-2970
DOI: 10.3897/zookeys.305.4893
Popis: The photosymbiotic ascidian fauna at Changi Beach, Pulau Semakau, Sentosa and St. John’s Island, Singapore were surveyed. A total of five species, Diplosoma simile, Lissoclinum bistratum, L. punctatum, L. timorense and Trididemnum cyclops, were recorded, with L. timorense and T. cyclops being newly recorded in Singapore. However, no photosymbiotic species were found at Changi Beach probably due to the polluted waters in the region. Coastal development has caused Singapore waters to become turbid, leading to decrease in suitable habitats for photosymbiotic ascidians. Clean waters in Pulau Semakau probably provide a better environment for the growth of photosymbiotic ascidians and this area has a greater variety of these ascidians than the other areas in Singapore. Each of the five species has also been recorded in the Ryukyu Archipelago (Japan) and three species (Diplosoma simile, Lissoclinum bistratum and Trididemnum cyclops) have also been recorded in Taiwan.
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