Seasonal variations in phytoplankton productivity in a shallow cove in the eastern Seto Inland Sea, Japan
| Autor: | Kazuhiko Ichimi, Kuninao Tada, Nozomi Koga, Hitomi Yamaguchi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Chlorophyll a geography geography.geographical_feature_category 010604 marine biology & hydrobiology fungi 04 agricultural and veterinary sciences Aquatic Science 01 natural sciences chemistry.chemical_compound Light intensity Oceanography Water column chemistry Productivity (ecology) Phytoplankton 040102 fisheries 0401 agriculture forestry and fisheries Environmental science Bloom Bay Cove |
| Zdroj: | Fisheries Science. 86:1067-1078 |
| ISSN: | 1444-2906 0919-9268 |
| DOI: | 10.1007/s12562-020-01468-4 |
| Popis: | We examined phytoplankton productivity in Shido Bay, an active oyster farming area in the eastern Seto Inland Sea, Japan, by an in situ 13C method from March 2016 to January 2017. The depth-integrated daily phytoplankton production ranged from 0.13 to 1.61 g C m−2 day−1, and the estimated annual production was 218 g C m−2 year−1. The daily production peaked in the rainy season and autumn, when phytoplankton blooms were observed, and production during the bloom events largely contributed to the annual production. There was a strong correlation between daily production and phytoplankton biomass (chlorophyll a) throughout the study period. In the study area, due to the shallow depth (6 m) and moderate light attenuation coefficient of the water column (0.38 ± 0.07 m−1), the mean light intensity in the water column was maintained at high levels (36 ± 5% of incident photosynthetically active radiation) throughout the study period. In contrast, the dissolved inorganic nitrogen concentration of the water was persistently low ( |
| Databáze: | OpenAIRE |
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