Page 39 - IPCoSME 2021

1 INTERNATIONAL POSTGRADUATE CONFERENCE ON SCIENCE AND MARINE ENVIRONMENT 2021
st
(IPCoSME 2021)
“Environmental Sustainability Enhancement Through the Collaboration of Sciences”

RD-07

INFLUENCE OF ALIEN FALSE MUSSEL MYTILOPSIS SALLEI (RÉCLUZ, 1849)
ON BENTHIC MACROINVERTEBRATE COMMUNITY IN AN ESTUARY OF

SOUTHERN THAILAND

2,3
LUTFEE HAYEEWACHI , EKNARIN RODCHAROEN ,
1*
1
KRINGPAKA WANGKULANGKUL

1 Coastal Ecology Laboratory, Division of Biological Science, Faculty of Science, Prince of
Songkla
University, Hat Yai, Songkhla, Thailand 90110
2 Aquatic Science and Innovative Management Division, Faculty of Natural Resources, Prince of
Songkla University, Hat Yai, Songkhla, Thailand 90110
3 Discipline of Excellence for Sustainable Aquaculture, Faculty of Natural Resources, Prince of
Songkla University, Hat Yai, Songkhla, Thailand 90110

*Corresponding author email: 6210220061@email.psu.ac.th

Abstract: False mussel Mytilopsis sallei is one of the most widespread aliens invasive mussel

in the Indo-Pacific and has been reported to be introduced to the south of the Gulf of Thailand.

Investigation of the influence of mussel-modified habitat on benthic macroinvertebrate
community, amount of organic matter and sediment particle, as well as examine how these

biological and physical parameters vary seasonally was carried out in Pawong canal, Songkhla
Lagoon System. We compare benthic macroinvertebrate community (in term of community

composition, species richness, total number of individuals, and biodiversity) amount of organic
matter, and sediment particle between mussel-modified habitat and outside. We found 29 taxa

and detected the difference in community composition between mussel-modified habitat and

outside. Species richness, total number of individuals and biodiversity in mussel-modified
habitat was greater than outside. While organic matter and sediment particle were not different.

This study demonstrates that mussel-modified habitat had a positive effect on benthic

macroinvertebrate community by increasing in species richness, total number of individuals,
and biodiversity, while deposition was not affected by M. sallei filter-feeding activity.

Keywords: Invasive species, Mytilopsis sallei, benthic invertebrate community, habitat
complexity, Songkhla Lagoon System.

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