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Publication Type J
Authors Khogkhao, C; Hayashizaki, K; Tuntiprapas, P; Prathep, A
Author Full Name Khogkhao, Chadchai; Hayashizaki, Ken-ichi; Tuntiprapas, Piyalap; Prathep, Anchana
Title Changes in seagrass communities along the runoff gradient of the Trang river, Thailand
Source SCIENCEASIA
Language English
Document Type Article
Author Keywords salinity; sedimentation; siltation; species composition; biomass; reproduction
Keywords Plus MAI NATIONAL-PARK; SEDIMENT PROPERTIES; PROVINCE; WATER; SILTATION; HABITATS; BIOMASS; MEADOW; BURIAL; ASIA
Abstract Seagrasses are widely distributed from coastal estuaries through to deep waters. We examined the spatial pattern in seagrass species composition, biomass, and their relationships with various physical factors: salinity, mean sea level, light extinction coefficient, temperature, grain size (gravel, coarse sand, fine sand, clay), and soil organic matter between dry and rainy seasons along the gradient of Trang river mouth around Talibong Island, Trang province. Ten species were found in an area of 61 km(2) in the dry season, whereas only eight species were found in 24 km(2) in the rainy season. Halophila decipiens Ostenfeld was the dominant species covering 29 km(2) in the dry season. Enhalus acoroides (Linnaeus f. Royle) and H. ovalis (R. Brown) J. D. Hooker extended over a large area. Density, area covered, and biomass decreased in the rainy season for most species. A clear seasonal variation was observed both in physical and chemical parameters as well as seagrass species composition, biomass, and reproduction. Water depth and light intensity were the limiting factors that influenced species composition, biomass, and reproduction.
Author Address [Khogkhao, Chadchai; Tuntiprapas, Piyalap; Prathep, Anchana] Prince Songkla Univ, Excellence Ctr Biodivers Peninsular Thailand, Seaweed & Seagrass Res Unit, Dept Biol,Fac Sci, Hat Yai 90112, Thailand; [Hayashizaki, Ken-ichi] Kitasato Univ, Sch Marine Biosci, Minami Ku, Safamihara, Kanagawa 2520373, Japan
Reprint Address Prathep, A (reprint author), Prince Songkla Univ, Excellence Ctr Biodivers Peninsular Thailand, Seaweed & Seagrass Res Unit, Dept Biol,Fac Sci, Hat Yai 90112, Thailand.
E-mail Address anchana.p@psu.ac.th
Funding Agency and Grant Number National Research University; Graduate School, Prince of Songkla University, Thailand, Asian CORE Programme; core to core Programme of the Japan Society for the Promotion of Science; [SCI560300S]
Funding Text This work was supported in part by the National Research University and the Graduate School, Prince of Songkla University, Thailand, Asian CORE Programme and core to core Programme of the Japan Society for the Promotion of Science to CK, and Grant No. SCI560300S to AP. We would like to thank the Seaweed and Seagrass Research Unit Team, Prince of Songkla University and Marine National Park Education Centre in Trang, for support during field trip collections. We are grateful to Nongphanga Thitinantapan, Rachakorn Sirijarukul, and Panu Jarulakkhana who helped with the field trip collections; and Milica Stankovic helped with mapping.
Cited Reference Count 27
Publisher SCIENCE SOCIETY THAILAND
Publisher City BANGKOK
Publisher Address PUBLIC INFORMATION DEPT, 73/1 RAMA VI RD, RAJDHEVEE, BANGKOK, 00000, THAILAND
ISSN 1513-1874
29-Character Source Abbreviation SCIENCEASIA
ISO Source Abbreviation Scienceasia
Publication Date DEC
Year Published 2017
Volume 43
Issue 6
Beginning Page 339
Ending Page 346
Digital Object Identifier (DOI) 10.2306/scienceasia1513-1874.2017.43.339
Page Count 8
Web of Science Category Multidisciplinary Sciences
Subject Category Science & Technology - Other Topics
Document Delivery Number GB6DH
Unique Article Identifier WOS:000429158600001
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