Realm: Marine
Climate: Tropical
Biome: Tropical Coral
Central latitude: 6.953661
Central longitude: 99.578229
Duration: 4 years, from 2006 to 2009

2528 records

7 distinct species

Across the time series Halophila ovalis is the most frequently occurring species

Methods

Seven sites were set up in intertidal seagrass meadows along the coast of the Southern Andaman Sea, on the western seaboard of peninsular Thailand (Figure 1a). Two sites were selected in Trang province in the area of Haad Chao Mai National Park (Figure 1b): Laem Yong Lam (HCM NP Site 1) (7° 22.975?N, 99° 20.129 E) and Mook Island (HCM NP Site 2) (7° 22.591?N, 99° 18.617 E). Another five sites were selected in Satun province: three in Mu Ko Petra National Park (Figure 1c) at Lidee Lek (Petra NP Site 1, 6° 46' 58.2" N, 99° 46' 10.8"E), Lidee Yai site 1, (Petra NP Site 2, 6° 46' 58.7" N, 99° 46' 52.2" E) and Lidee Yai site 2 (Petra NP Site 3, 6° 47' 11.9"N, 99° 46' 40.9" E); and two at Talowaw Bay on Tarutao Island, Tarutao National Park (Figure 1d): (Tarutao Site 1, 6° 36' 20.6" N, 99° 41' 25.3" E and Tarutao Site 2, 6° 36' 45.2" N, 99° 41' 14.4"). The study was carried out following the SeagrassNet protocol (Short, McKenzie, Coles, Vidler, & Gaeckle, 2006; www.seagrassnet.org). Three transects (50?m) were laid parallel to the shore (Figure 1e). The first transect (transect A) delineated the upper edge of the seagrass meadows, the second transect (transect B) delineated the transitional zone between the shallow edge and the deeper edge and the third transect (transect C) delineated the deeper edge of the meadows. Three steel screw anchors were permanently placed in the substrate at 0, 25 and 50?m of each transect and were used as station markers for the duration of the study. The GPS coordinates of each anchor were recorded during setup. If a station marker was lost, the pre-recorded GPS points were used to reinstall the marker at the next field collection (for the detailed description of the sites and transects please check sites.csv file and Tables 2 and 3 for detailed description of the variables). To assess seagrass abundance, 12 quadrats (50?×?50?cm) were randomly placed along each transect on the landward side, and species composition, percent coverage of each species (%) and total percent coverage (%) were recorded.

Citation(s)

@Article{BioTIME_cit383, Study_id = {633}, Citation_id = {383}, Author = {Rattanachot, Ekkalak and Stankovic, Milica and Tuntiprapas, Piyalap and Prempree, Supaporn and Prathep, Anchana}, Journal = {Ecological Research}, Pages = {773-779}, Title = {Monitoring of seagrass along southern Andaman coast of Thailand}, Volume = {35}, Year = {2020}, Doi = {10.1111/1440-1703.12123}, Language = {English} }