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- Title
Contribution of benthic microalgae to the whole water algal biomass and primary production in Suo Nada, the Seto Inland Sea, Japan.
- Authors
Sarker, Md.; Yamamoto, Tamiji; Hashimoto, Toshiya
- Abstract
Biomass and primary productivity of benthic microalgae (BMA) and planktonic algae in Suo Nada, the western part of the Seto Inland Sea, Japan were compared in terms of unit area with regard to their seasonal and spatial distribution in 2002. Judging from light compensation depth and water depth, the southwestern part of Suo Nada was considered to be a potential habitat for BMA. Whereas the contribution of sedimented planktonic algae was high in biomass at the sediment surface, BMA was obviously significant both in biomass and primary production in the shallow southwestern part. However, the contribution of BMA to the total biomass in the entire water column was 7% in winter and 2% in summer. The primary production of BMA varied between 4.0 and 74.0 mg C m−2 d−1 in the southwestern part, accounting for 2–12% of the whole water column primary production. The ecological roles of BMA in the Suo Nada ecosystem are discussed, such as reduction of benthic nutrient flux, oxidation of surface sediments and feed for higher animals.
- Subjects
SEA of Japan; JAPAN; BIOMASS; BENTHIC plants; MICROALGAE; PLANKTON culture; FLUX (Metallurgy); BIOTIC communities; AQUATIC habitats
- Publication
Journal of Oceanography, 2009, Vol 65, Issue 3, p311
- ISSN
0916-8370
- Publication type
Article
- DOI
10.1007/s10872-009-0029-5