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Distribution of the Fiddler Crabs, Uca pugnax and Uca minax, in Relation to Salinity in Delaware Rivers
Kenneth G. Miller and Don Maurer
Vol. 14, No. 3 (Sep., 1973), pp. 219-221
Published by: Coastal and Estuarine Research Federation
Stable URL: http://www.jstor.org/stable/1350613
Page Count: 3
You can always find the topics here!Topics: Salinity, Crabs, Saltwater, Marine ecology, Wetland ecology, Estuaries, Fresh water, Statistical significance, Ecology, River water
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The distribution and abundance of the fiddler crabs, Uca pugnax and U. minax were determined in relation to salinity in three tidal tributaries of Delaware Bay, U. S. A. Only Uca pugnax was present in high salinity (21-29 ‰) while U. minax was present in lower salinities and even in fresh water. Their distributions overlapped along the salinity gradient and both species were equally abundant in salinities of 8-12 ‰. There was a statistically significant positive association between abundance and salinity for Uca pugnax and a negative association for U. minax.
Chesapeake Science © 1973 Coastal and Estuarine Research Federation