Assemblages of Mollusks (Gastropoda and Bivalvia) on the Intertidal Platform around Kattoshi, Hakodate Bay, Hokkaido
This study described quantitative data on the current molluscan assemblage on the intertidal platform around Kattoshi, Hakodate Bay, southern Hokkaido, Japan. A total of 25 gastropod species and ten bivalve species were recorded from four-season sampling. Cluster analysis and subsequent indicator va...
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北海道大学大学院水産科学研究院
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/82359 2023-05-15T16:18:15+02:00 Assemblages of Mollusks (Gastropoda and Bivalvia) on the Intertidal Platform around Kattoshi, Hakodate Bay, Hokkaido Yamakami, Ryusei Wada, Satoshi http://hdl.handle.net/2115/82359 https://doi.org/10.14943/bull.fish.71.1.1 eng eng 北海道大学大学院水産科学研究院 http://hdl.handle.net/2115/82359 doi:10.14943/bull.fish.71.1.1 北海道大学水産科学研究彙報, 71(1): 1-14 Mollusk Assemblage Intertidal zone Hakodate Bay 660 article fthokunivhus https://doi.org/10.14943/bull.fish.71.1.1 2022-11-18T01:06:36Z This study described quantitative data on the current molluscan assemblage on the intertidal platform around Kattoshi, Hakodate Bay, southern Hokkaido, Japan. A total of 25 gastropod species and ten bivalve species were recorded from four-season sampling. Cluster analysis and subsequent indicator value (IndVal) calculation showed that the platform has three groups of sites with different assemblages. Group-1 accounted for 78-88% of the sites and was characterized by two gastropods Barleeia angustata and Reticunassa fratercula, which were also the top two species in the annual abundance. The indicator species of Group-2 (6-13% of the sites) included three gastropods, Cantharidus japonicus, Lirularia iridescens and Homalopoma sangarense. Group-3 was the least abundant (3-8% of the sites) and Batillaria cumingii and Ruditapes philippinarum were significant indicators. Overall, the current molluscan assemblage of the platform was characterized by two extremely dominant gastropod species, B. angustata and R. fratercula, while a previous study found H. sangarense to be dominant from December 1996 to August 1997. These results indicate the molluscan assemblage has changed over the past quarter-century. Article in Journal/Newspaper fratercula Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Mollusk Assemblage Intertidal zone Hakodate Bay 660 |
spellingShingle |
Mollusk Assemblage Intertidal zone Hakodate Bay 660 Yamakami, Ryusei Wada, Satoshi Assemblages of Mollusks (Gastropoda and Bivalvia) on the Intertidal Platform around Kattoshi, Hakodate Bay, Hokkaido |
topic_facet |
Mollusk Assemblage Intertidal zone Hakodate Bay 660 |
description |
This study described quantitative data on the current molluscan assemblage on the intertidal platform around Kattoshi, Hakodate Bay, southern Hokkaido, Japan. A total of 25 gastropod species and ten bivalve species were recorded from four-season sampling. Cluster analysis and subsequent indicator value (IndVal) calculation showed that the platform has three groups of sites with different assemblages. Group-1 accounted for 78-88% of the sites and was characterized by two gastropods Barleeia angustata and Reticunassa fratercula, which were also the top two species in the annual abundance. The indicator species of Group-2 (6-13% of the sites) included three gastropods, Cantharidus japonicus, Lirularia iridescens and Homalopoma sangarense. Group-3 was the least abundant (3-8% of the sites) and Batillaria cumingii and Ruditapes philippinarum were significant indicators. Overall, the current molluscan assemblage of the platform was characterized by two extremely dominant gastropod species, B. angustata and R. fratercula, while a previous study found H. sangarense to be dominant from December 1996 to August 1997. These results indicate the molluscan assemblage has changed over the past quarter-century. |
format |
Article in Journal/Newspaper |
author |
Yamakami, Ryusei Wada, Satoshi |
author_facet |
Yamakami, Ryusei Wada, Satoshi |
author_sort |
Yamakami, Ryusei |
title |
Assemblages of Mollusks (Gastropoda and Bivalvia) on the Intertidal Platform around Kattoshi, Hakodate Bay, Hokkaido |
title_short |
Assemblages of Mollusks (Gastropoda and Bivalvia) on the Intertidal Platform around Kattoshi, Hakodate Bay, Hokkaido |
title_full |
Assemblages of Mollusks (Gastropoda and Bivalvia) on the Intertidal Platform around Kattoshi, Hakodate Bay, Hokkaido |
title_fullStr |
Assemblages of Mollusks (Gastropoda and Bivalvia) on the Intertidal Platform around Kattoshi, Hakodate Bay, Hokkaido |
title_full_unstemmed |
Assemblages of Mollusks (Gastropoda and Bivalvia) on the Intertidal Platform around Kattoshi, Hakodate Bay, Hokkaido |
title_sort |
assemblages of mollusks (gastropoda and bivalvia) on the intertidal platform around kattoshi, hakodate bay, hokkaido |
publisher |
北海道大学大学院水産科学研究院 |
url |
http://hdl.handle.net/2115/82359 https://doi.org/10.14943/bull.fish.71.1.1 |
genre |
fratercula |
genre_facet |
fratercula |
op_relation |
http://hdl.handle.net/2115/82359 doi:10.14943/bull.fish.71.1.1 北海道大学水産科学研究彙報, 71(1): 1-14 |
op_doi |
https://doi.org/10.14943/bull.fish.71.1.1 |
_version_ |
1766004411095580672 |