title: Tidal vertical migration: an endogenous rhythm in estuarine crab larvae.
abstract: Field-caught larvae of the estuarine crab Rhithropanopeus harrisii have a tidal rhythm of vertical migration when maintained in constant conditions. Laboratory-reared larvae do not show this rhythm. Endogenous tidal vertical migrations aid the retention of these planktonic larvae in estuaries near the parent populations.
authors.forename: T W
authors.initials: TW
authors.lastname: Cronin
authors.forename: R B
authors.initials: RB
authors.lastname: Forward