GROSELL, M.; WILSON, R.; RSMAS, Univ. of Miami, Fl; Univ. of Exeter, UK: Intestinal chloride/bicarbonate exchange is involved in osmoregulation Marine teleosts combat dehydration by drinking. In addition to apical Na+:Cl– and Na+:K+:2Cl– co-transport, Cl–/HCO3– exchange is involved in intestinal Cl– and water absorption. This exchange enables water and Cl– absorption in absence of luminal […]

WRIGHT, P.A.; MORGAN, R.L.; CAMPBELL, A.; ROSENBERGER, A.G.; MURRAY, B.W.; UNIVERSITY OF GUELPH; UNIVERSITY OF GUELPH; UNIVERSITY OF GUELPH; UNIVERSITY OF GUELPH; UNIVERSITY OF NORTHERN BRITISH COLUMBIA: Expression of two arginase genes in rainbow trout: tissue differences and up-regulation with fasting Arginase is a multifunctional enzyme in nitrogen metabolism. There are two forms of arginase […]

PELIS, R.M.*; RENFRO, J.L.; Univ. of Connecticut, Storrs; Univ. of Connecticut, Storrs: Active Sulfate Secretion by the Intestine of Winter Flounder, Pleuronectes americanus Marine teleosts are hypoosmotic to their surrounding environment and must continuously drink seawater to avoid dehydration. It is widely accepted that water uptake across the marine teleost intestine is driven by active […]

DIEUDONNE, A.; SANE, S.P.; Univ. Of Washington, Seattle; Univ. Of Washington, Seattle: The encoding properties of antennal mechanosensors in the hawk moth, Manduca sexta During locomotion, insects rely on their antennae for a wide variety of sensory stimuli. In addition to being the primary olfactory organs, the antennae also serve a very important mechanosensory role […]

KOEHL, M. A. R.; KOSEFF, J. R.; CRIMALDI, J. P.; WILEY, M. B.; Univ. of California, Berkeley; Stanford Univ.; Univ. of Colorado; City College of New York: Hydrodynamics of Sniffing by Lobsters Many animals use chemical cues in the water or air around them to detect mates, competitors, food, predators, and suitable habitats. The first […]

DEAN, M.N.*; HUBER, D.R.; NANCE, H.; U. Calif. Irvine; U. S. Florida; U. N. Carolina Chapel Hill: Functional morphology of jaw trabeculation in Narcine brasiliensis Design of minimum-weight structures that retain their integrity under dynamic loading regimes has long challenged engineers and functional morphologists. A solution to this problem found in both human and biological […]

LIAO, James, C.; Harvard University: Function of the lateral line in trout exposed to environmental vortices; the effect of a pharmacological block of the sensory neuromasts The dynamic and transparent nature of flowing water poses a distinct challenge to swimming fishes. Previous work has shown that rainbow trout need only recruit their anterior, axial red […]

CUNNINGHAM, G.B.; VAN BUSKIRK, R.W.; BONADONNA, F.; WEIMERSKIRCH, H.; NEVITT, G.A.; Univ. of California, Davis; Univ. of California, Davis; CNRS, France; CNRS, France; Univ. of California, Davis: Field studies of the olfactory sensitivities of three species of Procellariiform chicks. Antarctic procellariiform seabirds are attracted to food-related odors at sea, but little is known about how […]

MEAD, K. S.; BRUESTLE, A. E.; Denison University: Do Crayfish From Different Flow Environments Have Different Arrangements Of Chemosensors On Their Antennules? Many aquatic crustaceans use water-borne chemical cues in ecologically critical activities such as finding food, mates, suitable habitat, detecting predators, and communicating with conspecifics. These chemical cues are often present as odor plumes, […]

DICKISON, M.R.; Duke University: Are birds small? A macroecological perspective. Are birds small? Birds seem smaller than mammals, because almost all birds fly while few mammals do, and flight imposes severe constraints on body size. The most commonly cited study of avian and mammalian body size found modal sizes of about 10 g and 100 […]