Preliminary physiological study on the edible wild bivalves in Myeik Myanmar

Matsuoka Kazumi, . and Htoo-Thaw Maung-Saw, . and Koike Kazuhiko, . and Yurimoto Tatsuya, . and Tun Nyo-Nyo, . Preliminary physiological study on the edible wild bivalves in Myeik Myanmar. pp. 81-87. ISSN 0116-6514

To clarify the bivalve fishing situation in Myeik Coast which is a well-known centre of coastal fishing in Southern Myanmar an investigation on the physiological conditions of wild bivalves hard clam Meretrix casta var. ovum (Hanley 1845) soft clam Paphia undulata (Born 1778) green mussel Perna viridis (Linnaeus 1758) oyster Crassostrea belcheri (Sowerby 1871) and pen shell Atrina pectinata (Linnaeus 1767) landed in the City was done in December 2014 and March and September 2015. The bivalves were purchased at some local markets and a seafood restaurant and their physiological conditions including sexual maturation food availability and ability of nutritional absorption were investigated through histological observations. Additionally the concentration of paralytic shellfish poisoning (PSP) toxins was examined in the soft tissues of the bivalve samples with an enzyme-linked immune sorbent assay. The results showed that hard clam Meretrix casta var. ovum was the stable landing species through dry and wet seasons. Its spawning season was a long period extending from dry to wet seasons ensuring good food availability and nutritional absorption. The concentrations of PSP toxins were low (1 nM) in all bivalves making them safe for human consumption. In conclusion these results suggest that the Myeik Coast is suitable for hard clam fishing for the time being.

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Abstract

To clarify the bivalve fishing situation in Myeik Coast which is a well-known centre of coastal fishing in Southern Myanmar an investigation on the physiological conditions of wild bivalves hard clam Meretrix casta var. ovum (Hanley 1845) soft clam Paphia undulata (Born 1778) green mussel Perna viridis (Linnaeus 1758) oyster Crassostrea belcheri (Sowerby 1871) and pen shell Atrina pectinata (Linnaeus 1767) landed in the City was done in December 2014 and March and September 2015. The bivalves were purchased at some local markets and a seafood restaurant and their physiological conditions including sexual maturation food availability and ability of nutritional absorption were investigated through histological observations. Additionally the concentration of paralytic shellfish poisoning (PSP) toxins was examined in the soft tissues of the bivalve samples with an enzyme-linked immune sorbent assay. The results showed that hard clam Meretrix casta var. ovum was the stable landing species through dry and wet seasons. Its spawning season was a long period extending from dry to wet seasons ensuring good food availability and nutritional absorption. The concentrations of PSP toxins were low (1 nM) in all bivalves making them safe for human consumption. In conclusion these results suggest that the Myeik Coast is suitable for hard clam fishing for the time being.

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Item Type:	Article
AGROVOC Term:	Bivalves
AGROVOC Term:	Meretrix casta
AGROVOC Term:	Paphia undulata
AGROVOC Term:	Perna viridis
AGROVOC Term:	Crassostrea belcheri
AGROVOC Term:	Atrina pectinata
AGROVOC Term:	Coastal area
AGROVOC Term:	Animal physiology
AGROVOC Term:	Animal nutrition
AGROVOC Term:	Animal histology
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8117

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