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SEX RATIOS OF TWO SPECIES OF SPIDER CRABS, LIBINIA DUBIA H. MILNE EDWARDS, 1834 AND L. EMARGINATA LEACH, 1815, IN THE AREA OF GREAT BAY, NEW JERSEY

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Over a 7 year period, Libinia emarginata and L. dubia were sampled in the Great Bay estuary (New Jersey) and the waters immediately adjacent to it, using a beam trawl and an otter trawl. At collection sites where L. emarginata was common, the average male: female ratio was 2.5 : 1. Males were also significantly larger than females.

Pendant une periode de 7 ans, Libinia emarginata et L. dubia on ete echantillonnes dans l'estuaire de Great Bay (New Jersey) et dans les eaux adjacentes, en utilisant un chalut a perche et un chalut a panneaux. La ou L. emarginata etait commun, la ratio moyenne males: femelles etait 2.5 : 1. Les males etaient aussi, de facon significative, plus grands que les femelles.

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/content/journals/10.1163/156854099503276
1999-03-01
2015-07-05

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