High tolerance of Chaetomorpha sp. to salinity and water temperature enables survival and growth in stagnant waters of central Thailand

International Aquatic Research

مقاله 5، دوره 7، شماره 1، خرداد 2015، صفحه 47-62   

شناسه دیجیتال (DOI): 10.1007/s40071-014-0092-4

نویسندگان

Isao Tsutsui¹؛ Tatsuo Miyoshi²؛ Dusit Aue-umneoy³؛ Jaruwan Songphatkaew³؛ Chonlada Meeanan⁴؛ Sirimas Klomkling⁴؛ Halethichanok Sukchai⁴؛ Piyarat Pinphoo³؛ Iori Yamaguchi⁵؛ Monthon Ganmanee³؛ Yukio Maeno¹؛ Kaoru Hamano^{* 2}

¹Fisheries Division, Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, Japan

²National Research Institute of Fisheries and Environment of Inland Sea, Onomichi, Hiroshima, Japan

³Department of Animal Production and Fisheries, Faculty of Agricultural Technology, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand

⁴Shrimp Co-culture Research Laboratory (SCORL), King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand

⁵Faculty of Engineering, Fukuoka Institute of Technology (FIT), Fukuoka, Japan

چکیده

The effects of salinity and water temperature on growth and survival of Chaetomorpha sp., one of the green tidal filamentous algae, were investigated. Field surveys revealed that this alga was abundant throughout the year in stagnant coastal waters of central Thailand. Chaetomorpha sp. was found in salinities of 3.4–90.0 and water temperatures of 20.1–40.9 °C. Chaetomorpha sp. biomass fluctuated between 9.2 and 162 kg dry weight in a saline swamp, without significant differences among seasons. The highest mean specific growth rate of approximately, 60 % day−1 was observed in laboratory experimental trials at salinities of 20–30 at 30 °C. Salinity and water temperature significantly affected growth of this alga independently and interactively. Based on these results, Chaetomorpha sp. can easily grow, survive and monopolize in stagnant waters where the salinity and temperature greatly fluctuate because of their euryhaline and eurythermal nature as well as their high growth rate

کلیدواژه‌ها

Cladophoraceae؛ Euryhalinity؛ Eurythermy؛ Algal mat؛ Mangrove swamps