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INDIRECT CONTRAMENSALISM THROUGH TROPHIC CASCADES BETWEEN TWO OMNIVOROUS FISHES

2003; Wiley; Volume: 84; Issue: 5 Linguagem: Inglês

10.1890/0012-9658(2003)084[1311

1939-9170

Osamu Katano, Yoshimasa Aonuma, Tomoyuki Nakamura, Shoichiro Yamamoto,

Fish biology, ecology, and behavior

EcologyVolume 84, Issue 5 p. 1311-1323 Regular Article INDIRECT CONTRAMENSALISM THROUGH TROPHIC CASCADES BETWEEN TWO OMNIVOROUS FISHES Osamu Katano, Osamu Katano National Research Institute of Fisheries Science, Fisheries Research Agency, 1088 Komaki, Ueda, Nagano, 386-0031 Japan E-mail: katano@fra.affrc.go.jpSearch for more papers by this authorYoshimasa Aonuma, Yoshimasa Aonuma National Research Institute of Fisheries Science, Fisheries Research Agency, 1088 Komaki, Ueda, Nagano, 386-0031 Japan Present address: Seikai National Fisheries Research Institute, Fisheries Research Agency, Nagasaki, 850-0951 JapanSearch for more papers by this authorTomoyuki Nakamura, Tomoyuki Nakamura National Research Institute of Fisheries Science, Fisheries Research Agency, 1088 Komaki, Ueda, Nagano, 386-0031 JapanSearch for more papers by this authorShoichiro Yamamoto, Shoichiro Yamamoto National Research Institute of Fisheries Science, Fisheries Research Agency, 1088 Komaki, Ueda, Nagano, 386-0031 JapanSearch for more papers by this author Osamu Katano, Osamu Katano National Research Institute of Fisheries Science, Fisheries Research Agency, 1088 Komaki, Ueda, Nagano, 386-0031 Japan E-mail: katano@fra.affrc.go.jpSearch for more papers by this authorYoshimasa Aonuma, Yoshimasa Aonuma National Research Institute of Fisheries Science, Fisheries Research Agency, 1088 Komaki, Ueda, Nagano, 386-0031 Japan Present address: Seikai National Fisheries Research Institute, Fisheries Research Agency, Nagasaki, 850-0951 JapanSearch for more papers by this authorTomoyuki Nakamura, Tomoyuki Nakamura National Research Institute of Fisheries Science, Fisheries Research Agency, 1088 Komaki, Ueda, Nagano, 386-0031 JapanSearch for more papers by this authorShoichiro Yamamoto, Shoichiro Yamamoto National Research Institute of Fisheries Science, Fisheries Research Agency, 1088 Komaki, Ueda, Nagano, 386-0031 JapanSearch for more papers by this author First published: 01 May 2003 https://doi.org/10.1890/0012-9658(2003)084[1311:ICTTCB]2.0.CO;2Citations: 20 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract The impact of trophic cascades on the interspecific relationship between two omnivorous stream fish, ayu (Plecoglossus altivelis altivelis) and Japanese dace (Tribolodon hakonensis), were analyzed in experimental pools. Benthic algae grew on the pool beds, and macroinvertebrates colonized the pools. Ayu predominantly grazed the algae, occasionally forming territories. Japanese dace fed on both benthic algae and invertebrates when ayu were absent, and predominantly on invertebrates when ayu were present. The presence of Japanese dace reduced the number of invertebrates and increased algal biomass (chlorophyll a) through trophic cascades, but the effects of respiration and excretion of dace did not notably increase algal biomass probably because the water continuously pumped into the pools was already nutrient rich. The growth rate of ayu was enhanced in the presence of Japanese dace due to increased algal biomass. In contrast, as the number of ayu increased, the growth rate of Japanese dace was reduced because of the exploitation of benthic algae and occasional attacks by ayu on dace. The relationship between ayu and Japanese dace is not merely competitive, but partly indirect contramensalism through trophic cascades. The occasional attacks by ayu on Japanese dace were mainly directed at individuals moving near the pool beds and therefore might function to increase benthic algal resources by limiting grazing by dace. Corresponding Editor: K. O. Winemiller. Citing Literature Supporting Information Filename Description https://dx.doi.org/10.6084/m9.figshare.c.3297797 Research data pertaining to this article is located at figshare.com: Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume84, Issue5May 2003Pages 1311-1323 RelatedInformation