An investigation of the relationship between sediment particles size and the development of green algal mats (Ulva prolifera) on the intertidal flats of Muan, Korea
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The relationship between median grain size of sediments and the abundance in the wild of green algal mats (Ulva prolifera) on the intertidal flats of Muan, Korea, were investigated. The impact of substratum particle size on the growth and survival of germlings was examined in the laboratory. In the wild, the average annual density of algal mats was 7,950 ind m−2. The algal mats mainly occurred in sands and exhibited patchy distribution. Statistical analysis indicates significant spatial analysis differences and a significant relationship between density and the ratio of sands to silts, suggesting that the distribution and density of this species were related to particle size. In laboratory experiments, the survival rate of U. prolifera germlings was the lowest value (22%) on sediments with a median grain size of 63–125 μm. Laboratory experiments have generally shown a positive relationship between attachment or survival of the alga and substratum particles size. Our laboratory results indicate a clear link between germling settlement/survival and substratum particle size. These results explain the spatial differences in abundance observed in the field in relation to the distribution and ratio of sands to silt on the Muan flats.
KeywordsUlva prolifera Green algal mats Distribution Sediment Particle size
We are grateful to Professor J.H. Chang (Mokpo National University, Korea) for analyzing particle size and Dr. Philip Heath (NIWA, New Zealand) for reviewing the English. This work was supported by NFRDI (RP-2010-AQ-014) and a grant from Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0093828).
- Arakawa H, Matsuike K (1992) Influence on insertion of zoospores, germination, survival, and maturation of gametophytes of brown algae exerted by sediments. Nippon Suis Gakk 58:619–625Google Scholar
- Friedman GM, Sanders JE (1978) Principles of sedimentology. Wiley, New YorkGoogle Scholar
- Informatization Officer (2006) Statistical yearbook of maritime affairs and fisheries. Ministry of Maritime Affairs and Fisheries, SeoulGoogle Scholar
- Kang TH, Yoo SH, Lee SW, Choi OI, Lee CB (2008) A study on the habitat use of waterbirds and grading assessment of the tidal flat at Muan Bay in Jeollanamdo, Korea. Kor J Env Ecol 22:521–529Google Scholar
- Ohno M, Miyanoue K (1980) The ecology of the food alga Enteromorpha prolifera. Rep Usa Mar Biol Inst 2:11–17Google Scholar
- Ryu SK, Kim JY, You HS (2000) Seasonal variation and transport pattern of suspended matters in semiclosed Muan Bay, southwestern coast of Korea. J Kor Ear Sci Soc 21:128–136Google Scholar
- Sokal RR, Rohlf FJ (1995) Biometry. The principles and practices of statistics in biological research, 3rd edn. W.H. Freeman, San FranciscoGoogle Scholar
- Yoon JT, Cho YC, Gong YG (2003) A study on the cultivation of Enteromorpha prolifera (Müller) J. Agardh, Chlorophyta in Korea. J Aquault 16:44–50Google Scholar