Fine‐scale distribution of tropical seagrass beds in Southeast Asia

Kenji Sudo,Masahiro Nakaoka

doi:10.1111/1440-1703.12137

Abstract

AbstractSoutheast Asia is a hotspot of global seagrass diversity, offering valuable ecosystem services for human life. However, historically, there have been large gaps in the scientific knowledge of the distribution of seagrass beds in this region. Information on the distribution has not been updated in global databases since the publication of the World Seagrass Atlas in 2003, which was based on data mostly obtained up until the late 1990s. We collected more recent data on seagrass bed distribution from nine ASEAN countries plus southern China and southern Japan, and integrated these data into a geographic information system (GIS)‐database. A total of 1,064 polygon data and 937 points data were uploaded in this paper, which were obtained from 107 scientific articles and reports published after 2000, including those written in local languages. Among them, 7.3% of the data have associated information on seagrass bed size and 35.3% have associated information on seagrass species composition. Data obtained from Vietnam, Cambodia, Singapore, Timore‐Leste and Southern China cover almost all the coastlines of each country, whereas data for the Philippines, Indonesia, Malaysia, Myanmar, Thailand still have large gaps in areal coverage. The data set has a few points from Brunei Darussalam, the Paracel Islands, Spratly Islands and Pratas Islands, which are areas that we lacked information on for a long time. The obtained data will be useful to understand the current status of seagrass beds and to help facilitate better conservation and management of coastal areas in this region.The complete data set for this abstract published in the Data Paper section of the journal is available in electronic format in MetaCat in JaLTER at http://db.cger.nies.go.jp/JaLTER/metacat/metacat/ERDP-2020-13.1/jalter-en.

Highlights

Seagrass beds are one of the most important coastal habitats globally, offering valuable ecosystem services for human life (Constanza et al 1997; McArthur and Boland 2006; Unsworth and Cullen 2010; Nakaoka et al 2014)
Southeast Asia is a hotspot of global seagrass diversity with 24 species out of
Seagrass beds in this region is characterized by mixed, multispecific meadow with more than 10 species are sometimes cooccur in a single stand (Soe-Htun et al 2018, Vermaat et al 1995)

Summary

INTRODUCTION

Seagrass beds are one of the most important coastal habitats globally, offering valuable ecosystem services for human life (Constanza et al 1997; McArthur and Boland 2006; Unsworth and Cullen 2010; Nakaoka et al 2014). With the increasing awareness of the importance of seagrass beds, multiple surveys on the status of seagrass beds have been conducted by governmental managers and scientists in Asian countries since the 2000s, most of them have been published in local literature in native languages (Fortes et al 2018), which are difficult to access by internet surveys in English. This data paper provides recent data on tropical seagrass bed distribution in Southeast Asia. Cite this data paper as appropriate credit. 2.6.2 Location of storage http://db.cger.nies.go.jp/JaLTER/ER_DataPapers/archives/2020/ERDP-2020-13

Area Literature

Findings

Source Area GIS Area Literature Remarks Species