Reproduction in the Chinese mitten crab, Eriocheir sinensis

We have established a baseline GSI and size of downstream migrating female crabs at the Tracy Fish Recovery Facility. These data will be used to compare carapace sizes and GSI for fall 2000–winter 2001 crabs. In addition, we have purified and characterized the yolk protein of the mitten crab, then developed an anti-Vn antiserum. We will use this antiserum in an ELISA that will detect changes in yolk protein levels in hemolymph. This assay will be useful in examining environmental and physiological cues that stimulate ovarian development.