TAYLOR, J.R.; GROSELL, M.; Univ. of Miami; Univ. of Miami: Feeding and osmoregulation: dual function of the marine teleost intestine Experiments performed on Gulf Toadfish, Opsanus beta, demonstrate how feeding impacts HCO3– secretion and overall osmoregulation in the marine teleost intestine. Because Ca2+ has been shown to stimulate intestinal HCO3– secretion, Gulf Toadfish were fed […]

CURTIS, DL; MCGAW, IJ; University of Nevada, Las Vegas; University of Nevada, Las Vegas: Feeding and digestion in low salinity: behavioural adaptations to avoid physiological multitasking in the Dungeness crab Cancer magister The salinity regimes of estuaries change on a regular basis, imparting varying levels of physiological cost on their inhabitants. The costs associated with […]

WENDT, D.E.; KOWALKE, G.L.; KIM, J.; SINGER, I.L.; Cal Poly, San Luis Obispo; Cal Poly, San Luis Obispo; US Naval Research Laboratory; US Naval Research Laboratory: Factors that Influence Elastomeric Coating Performance: The Effect of Coating Thickness on Growth, Critical Removal Stress, and Modes of Release of the Barnacle Balanus amphitrite Silicone-based coatings are currently […]

TOWLE, D.W.*; SMITH, C.M.; Mt. Desert Island Biological Laboratory: Expressed sequence tags in a normalized cDNA library prepared from multiple tissues of the American lobster Homarus americanus Although the American lobster Homarus americanus provides a highly valuable fishery in northern New England and the Atlantic provinces of Canada, populations in other areas are under stress. […]

FAHRENBACH, WOLF H; Oregon National Primate Research Center, Beaverton: Excretory organ of a pycnogonid. Literature of the past century states that sea spiders (Pycnogonida), a group with unresolved arthropod affinities, lack an excretory system. I found a conventional excretory organ in Nymphopsis spinosissima (Ammotheidae). It consists of an end sac, a straight proximal tubule, a […]

OWEN-ASHLEY, N. T.*; HASSELQUIST, D.; WINGFIELD, J. C.; Univ. of Washington, Seattle; Lund University, Sweden; Univ. of Washington, Seattle: Examining the indirect effects of testosterone-induced immunosuppression in male songbirds. II.) Effect of short-term pharmacological adrenalectomy on humoral immune responses in testosterone-implanted birds In many species of birds, implants of testosterone (T) suppress immune function in […]

LEGERE, J. K. D. *; WITTEN, P.; HALL, B.; Dalhousie University: Examination of Skeletal Remodelling and Resorption in Echinoderm Larvae Skeletal remodelling and resorption are observed in both vertebrates and echinoderms. Vertebrate bone is resorbed by osteoclasts that secrete the acidic lysosomal enzyme acid phosphatase (AcP). Resorption and remodelling have also been observed in the […]

KUO, Dian-Han; SHANKLAND, Marty; University of Texas at Austin: Evolutionary of cell fate specification mechanisms in the O/P equivalence group of the leech genus Helobdella Body segments of clitellate annelids are formed by posterior addition of blast cells arising from five bilateral pairs of embryonic stem cells, the teloblasts. Each of the teloblasts gives rise […]

BABCOCK, SK; HURNEY, CA; VAGLIA, JL; TURNER, SD; COGBILL, S; James Madison University; JMU; DePauw Univ.; JMU; JMU: Embryonic Development in the Four-Toed Salamander, Hemidactylium scutatum We present a staging table of normal development for Hemidactylium scutatum (Plethodontidae: Hemidactyliini), from fertilization to hatching. Terrestrial egg clutches from naturally ovipositing females (n=6) were collected in May […]

HAYWARD, LS; EBEL, N; WINGFIELD, JC; Univ. of Washington; Univ. of Washington; Univ. of Washington: Elevated yolk corticosterone and cooling prior to hatch significantly alter maze performance in two-day old chicks Exposure to elevated glucocorticoids early in development has been shown to reduce learning ability in vertebrates. We tested the effects of elevated yolk corticosterone […]