SCHRANK, G. D.; BLOB, R. W.*; SCHOENFUSS, H. L.; St. Cloud State University, Minnesota; Clemson University, South Carolina; St. Cloud State University, Minnesota: Ontogenetic changes in red and white muscle fiber distribution in two species of waterfall climbing Hawaiian fishes Two species of Hawaiian amphidromous gobies are remarkable in their ability to climb tall waterfalls. […]

MAIE, T.**; SCHOENFUSS, H.L.; BLOB, R.W.; Clemson Univ., SC; St.Cloud State Univ., MN; Clemson Univ., SC: ONTOGENETIC SCALING OF BODY PROPORTIONS IN WATERFALL-CLIMBING FISHES FROM DOMINICA AND HAWAI�I: IMPLICATIONS FOR LOCOMOTOR FUNCTION Potential effects of body size changes on locomotor performance in gobiid fishes were studied by collecting morphometric data from the sicydiine species Sicydium […]

MCDOLE, T.S.**; MURRAY, J.A.; CAIN, S.D.; Friday Harbor Labs, WA; Friday Harbor Labs, WA; Friday Harbor Labs, WA and Univ. of Central Arkansas, Conway: Neuronal Control of Mucociliary Interactions in Tritonia diomedea Mucociliary interactions serve important functions in nearly all animals, yet little is known about the underlying neural and endocrine mechanisms that regulate and […]

SCHULZE, A*; RICE, M.E.; Smithsonian Marine Station; Smithsonian Marine Station: Neurogenesis and Myogenesis in Sipunculan Worms According to most recent molecular phylogenetic analyses of protostome relationships, Sipuncula are either closely related to or nested within the Annelida. Morphological characters in the adults, however, hold few cues to the evolutionary origin of the group. We are […]

WOLF, Mary C.*; MOORE, Paul A.; Bowling Green State University; Bowling Green State University: Neural and behavioral responses to complex odor stimuli using crayfish as a model system The physical environment in which animals live has a profound impact on the sensory information they receive and their behavioral responses to that information. This is particularly […]

BRAUBACH, O.R.*; DICKINSON, A.J.G.; EVANS, C.E.; CROLL, R.P.; Dalhousie University, Halifax, NS; Whitehead Institute, Cambridge, MA; Ottawa Health Research Institute, ON; Dalhousie University, Halifax, NS: Neural Control of the Velum in Larvae of the Gastropod, Ilyanassa obsoleta. A ciliated velum is a common feature of molluscan development and is used by larvae to execute swimming […]

JAECKLE, W.B.; BALSER, E.J.*; Ill. Wesleyan U., Bloomington: Nephridial function in larvae of asteroid echinoderms Evidence for a nephridium in larvae of echinoderms was first provided 20 years ago. Ruppert and Balser (1986) presented morphological evidence that this larval kidney is formed by the axocoel, the pore canal, and when present, a pulsatile vesicle or […]

COOPER, A.-S.*; MOFFET, S.; COOPER, R.L.; LaFayette High School, Lexington, KY.; Wash. State Univ., Pullman, WA.; Univ. of KY, Lexington, KY.: NERVE TERMINAL PRUNING IN CONJUNCTION WITH MUSCLE ATROPHY BY DISUSE & UNLOADING IN CRAYFISH The anterior levator (a.l.) muscle of the crayfish is the major muscle for lifting the limb of walking legs and […]

FARRAR, D.M.; MONROY, J.A.*; CARTER, M.E.; COVEY, E.; CASSEDAY, J. H.; University of Washington, Seattle: Mother-infant communication in the big brown bat, Eptesicus fuscus The first vocalizations emitted by infant big brown bats develop into several types of calls. Many of these calls serve to communicate with their mothers. Big brown bats form large maternity […]

MACESIC, L. J.; Florida Atlantic University: Morphometrics and behavioral function of the electric organs of Bancroft�s numbfish, Narcine bancroftii All elasmobranchs have the ability to detect electricity, however only skates (Rajiformes) and electric rays (Torpediniformes) are capable of bioelectrogenesis. Within these orders, skates emit weak electric organ discharges (EODs) involved in communication, whereas electric rays […]