Morphometric relationship of weight and size of cu

Authors: Satit Kovitvadhi Uthaiwan Kovitvadhi Pichan Sawangwong Premjai Trisaranuwatana Jorge Machado

Publish Date: 2008/04/09

Volume: 17, Issue: 1, Pages: 57-67

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Abstract

The freshwater pearl mussel Hyriopsis Limnoscapha myersiana Lea 1856 was cultured in the laboratory 0–120 days old in an earthen pond in acrylic containers 120–270 days old and in pocket nets with frames 270–360 days old Measurements were taken of the length–height and the total body weight–size shell length shell height and shell width It was found that the length–height in each period of culture showed a linear relationship and that the shell height increased as the shell length increased along with the same linear relationship When statistical analyses were performed this linear regression line consisted of three distinct lines P  001 The general morphometric relationships between the length and height of mussels grown in the laboratory in acrylic containers and in pocket nets were Log H = −0147 + 0828Log L Log H = −0211 + 0909Log L and Log H = −0264 + 0951Log L respectively The relationship between the total body weight–size in different culture phases was a positive allometric equation and the two curved lines were not the same P  001 The general morphometric relationships between the length and the total body weight of the mussels cultured in acrylic containers and pocket nets were Log W = −3747 + 2674Log L and Log W = −4149 + 2976Log L respectively Such measurements are useful in the management of different culture phases of H L myersianaWe would like to thank the Department of Aquaculture Faculty of Fisheries Kasetsart University Thailand for providing a pond for culturing the mussels We are also grateful to Professor Dr Timothy Wood Department of Biological Sciences Wright State University Dayton OH USA for his revision of our manuscript

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