Open AccessUSE OF A SEINE TO DETECT STUNTED CRAWFISH POPULATIONS IN PONDS, A PRELIMINARY REPORT 1
Author(s) -
Momot Walter T.,
Romaire Robert P.
Publication year - 1981
Publication title -
journal of the world mariculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0735-0147
DOI - 10.1111/j.1749-7345.1981.tb00310.x
Subject(s) - biology , flooding (psychology) , population , population structure , population size , zoology , demography , psychology , sociology , psychotherapist
A 4.5‐m long bag seine was used to sample crawfish from six 0.04 ha experimental ponds. Length‐frequency histograms were evaluated as a predictor of size structure and to detect stunted populations of crawfish. The findings demonstrated importance of determining size structure of crawfish in predicting stunting and harvest potential of a population. Distinct differences in size structure of crawfish populations were apparent by 6 and 12 weeks after flooding ponds. Crawfish populations, with over 45% of the individuals exceeding 75 mm total length after 12 weeks, produced 25 to 30% greater yields than populations in which less than 5% of the crawfish exceeded 75 mm at 12 weeks post‐flooding.