Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine Groundwater
Submarine groundwater is richer in nutrients compared to surface (river) water and therefore has been considered to be an essential component of biological production in marine coastal ecosystems. However, there has been no information on the effects of submarine groundwater on animals at high-order...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-06-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fenvs.2019.00082/full |
| _version_ | 1818652132514988032 |
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| author | Koji Fujita Jun Shoji Jun Shoji Ryo Sugimoto Toshimi Nakajima Hisami Honda Masaru Takeuchi Osamu Tominaga Makoto Taniguchi |
| author_facet | Koji Fujita Jun Shoji Jun Shoji Ryo Sugimoto Toshimi Nakajima Hisami Honda Masaru Takeuchi Osamu Tominaga Makoto Taniguchi |
| author_sort | Koji Fujita |
| collection | DOAJ |
| description | Submarine groundwater is richer in nutrients compared to surface (river) water and therefore has been considered to be an essential component of biological production in marine coastal ecosystems. However, there has been no information on the effects of submarine groundwater on animals at high-order trophic levels such as fishes. Here, we show the first direct evidence that fish feeding and growth are elevated by submarine groundwater discharge (SGD) by on-site experiments and quantitative sampling. An experiment using cages moored on the sea bottom confirmed that juvenile marbled sole Pseudopleuronectes yokohamae obtained elevated levels of nutrition in the vicinity of SGD. Quantitative sampling at three sites with different hydrodynamic properties in coastal waters of the western North Pacific showed correspondence of high SGD with high biological production or biomass from producer to secondary consumers. These findings demonstrate that nutrients of terrestrial origin provided via submarine groundwater in coastal areas promote marine fish production. |
| first_indexed | 2024-12-17T02:17:09Z |
| format | Article |
| id | doaj.art-3b810ce2fe5c43bba74b3ba8720763ca |
| institution | Directory Open Access Journal |
| issn | 2296-665X |
| language | English |
| last_indexed | 2024-12-17T02:17:09Z |
| publishDate | 2019-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Environmental Science |
| spelling | doaj.art-3b810ce2fe5c43bba74b3ba8720763ca2022-12-21T22:07:22ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2019-06-01710.3389/fenvs.2019.00082457688Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine GroundwaterKoji Fujita0Jun Shoji1Jun Shoji2Ryo Sugimoto3Toshimi Nakajima4Hisami Honda5Masaru Takeuchi6Osamu Tominaga7Makoto Taniguchi8Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, JapanGraduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, JapanAtmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, JapanDepartment of Marine Bioscience, Fukui Prefectural University, Obama, JapanDepartment of Marine Bioscience, Fukui Prefectural University, Obama, JapanResearch Institute for Humanity and Nature, Kyoto, JapanDepartment of Marine Bioscience, Fukui Prefectural University, Obama, JapanDepartment of Marine Bioscience, Fukui Prefectural University, Obama, JapanResearch Institute for Humanity and Nature, Kyoto, JapanSubmarine groundwater is richer in nutrients compared to surface (river) water and therefore has been considered to be an essential component of biological production in marine coastal ecosystems. However, there has been no information on the effects of submarine groundwater on animals at high-order trophic levels such as fishes. Here, we show the first direct evidence that fish feeding and growth are elevated by submarine groundwater discharge (SGD) by on-site experiments and quantitative sampling. An experiment using cages moored on the sea bottom confirmed that juvenile marbled sole Pseudopleuronectes yokohamae obtained elevated levels of nutrition in the vicinity of SGD. Quantitative sampling at three sites with different hydrodynamic properties in coastal waters of the western North Pacific showed correspondence of high SGD with high biological production or biomass from producer to secondary consumers. These findings demonstrate that nutrients of terrestrial origin provided via submarine groundwater in coastal areas promote marine fish production.https://www.frontiersin.org/article/10.3389/fenvs.2019.00082/fullgroundwater dischargecage experimentfeedingfloundergrowthradon |
| spellingShingle | Koji Fujita Jun Shoji Jun Shoji Ryo Sugimoto Toshimi Nakajima Hisami Honda Masaru Takeuchi Osamu Tominaga Makoto Taniguchi Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine Groundwater Frontiers in Environmental Science groundwater discharge cage experiment feeding flounder growth radon |
| title | Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine Groundwater |
| title_full | Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine Groundwater |
| title_fullStr | Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine Groundwater |
| title_full_unstemmed | Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine Groundwater |
| title_short | Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine Groundwater |
| title_sort | increase in fish production through bottom up trophic linkage in coastal waters induced by nutrients supplied via submarine groundwater |
| topic | groundwater discharge cage experiment feeding flounder growth radon |
| url | https://www.frontiersin.org/article/10.3389/fenvs.2019.00082/full |
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