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The Bryozoan Diversity Mystery : Why Do We Have About 1000 Species in Japanese Waters?

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Title: The Bryozoan Diversity Mystery : Why Do We Have About 1000 Species in Japanese Waters?
Authors: Scholz, Joachim Browse this author
Mawatari, Shunsuke F. Browse this author
Hirose, Masato Browse this author
Keywords: Bryozoa
Biofilms
Morphoprocess
Latitudinal gradients
Issue Date: 2008
Publisher: 21st Century COE for Neo-Science of Natural History, Hokkaido University
Citation: Edited by Hisatake Okada, Shunsuke F. Mawatari, Noriyuki Suzuki, Pitambar Gautam. ISBN: 978-4-9903990-0-9
Journal Title: Origin and Evolution of Natural Diversity : Proceedings of the International Symposium, The Origin and Evolution of Natural Diversity, held from 1-5 October 2007 in Sapporo, Japan
Start Page: 129
End Page: 135
Abstract: Bryozoans are clonal and colonial organisms that have a species-specific biological potential to perform tactial (reactive) growth alterations. These biological potentials subdivide encrusting bryozoan morphotypes into several different pathways of individuality of morphoprocesses, a term introduced by V. N. Beklemishev (1890-1962), and applied to bryozoans with various degrees of colony integration. The frequency distribution of these morphotypes (z-/m-/c-/s-laminae) has been studied in bryozoans occurring in the vicinity of 5 Japanese marine biology stations, located along the latitudinal gradient in Japan from cool-temperate to (marginally) tropical. With increasing light influx and temperature, substrate occupation and thickness of biofilms increase, and filamentous microalgae and cyanobacteria gradually replace diatoms. Likewise, the warmer the water, the more frequent became s- and c-laminae. Both are the morphotypes with the best relative potential to perform tactical response and to overgrow biomats. In warmer water, bryozoan coverage tends to decrease benthic microbial diversity. In cool waters, the opposite is often the case. This indicates that biofilms contribute to differentiate the substrate surface into various bryozoan microhabitats, and thus contribute to the overall bryozoan diversity present in Japanese waters.
Description: International Symposium, "The Origin and Evolution of Natural Diversity". 1–5 October 2007. Sapporo, Japan.
Conference Name: International Symposium, "The Origin and Evolution of Natural Diversity"
Conference Place: Sapporo
Type: proceedings
URI: http://hdl.handle.net/2115/38449
Appears in Collections:Origin and Evolution of Natural Diversity > Proceedings

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