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Vertical zonation and heat tolerance of three littorinid gastropods on a rocky shore at Tanjung Chek Jawa, Singapore
Citation
Lee, S. L., & Lim, S. S. L. (2009). Vertical zonation and heat tolerance of three littorinid gastropods on a rocky shore at Tanjung Chek Jawa, Singapore. The Raffles Bulletin of Zoology, 57(2), 551-560. https://lkcnhm.nus.edu.sg/wp-content/uploads/sites/10/app/uploads/2017/06/57rbz551-560.pdf
Abstract
Three common rocky shore littorinid taxa, i.e. Littoraria spp. (a collective term for L. strigata and L. articulate), Echinolittorina malaccana and E. vidua occupied different tidal heights based on field observations carried out at Tanjung [=Cape] Chek Jawa, Pulau [=Island] Ubin, Singapore in 2002. Littoraria spp. were consistently observed at a lower level on the shore than E. malaccana and E. vidua. Manually translated littorinids returned to their preferred zones in the field, i.e., E. malaccana returned to the region above the MHWS level of 2.7 m while Littoraria spp. remained below the region occupied by E. malaccana. Further, E. malaccana individuals with their shell nodules removed by filing did not occupy a lower zone than intact conspecifies in the field. Although significant temperature differences (TD) were observed between rock and surfaces in the laboratory (TD Littoraria = TD filed E. malaccana
Publisher
National University of Singapore
Journal
The Raffles Bulletin of Zoology