Size Distribution and Biometric Studies on the Rocky Snail Thais carinifera in Lake Timsah, Suez Canal

Authors

1 Faculty of Education, Suez Canal University, El-Arish, Egypt

2 Faculty of Science, Suez Canal University, Port Said, Egypt

3 Faculty of Science, Suez Canal University, Ismailia, Egypt

4 Faculty of Science, Suez Canal University, Suez, Egypt

Abstract

This study investigates the population structure, size frequency distribution and the biometric studies of
the rocky snail Thais carinifera in Lake Timsah, Suez Canal. The population was dominated by animals
with shell length ranged from 5-5.5 to 5.6-6 cm, which represented 61.96 % of the total individuals.
Significant correlations were found between shell length and most of the other parameters (shell width,
aperture length, and body whorl), with negative allometric growth. The correlation co-efficient values
between shell length and body weight were significant with isometric, positive and negative allometric
growth along the study period (July 2006 - September 2007).

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