OMANA, E.C.; SHUSTER, S.M.; Northern Arizona University; Northern Arizona University: Paradella dianae in Mexico: �Alternative male morphs? �Si! �Hermaphrodites? �No! Protandrous sex change is the most common pattern of sequential hermaphroditism in the Crustacea. Recently, three species of sphaeromatid isopods have been found to exhibit protogynous sex change: Gnorimosphaeroma oregonense, G. naktongense, and Paradella dianae, […]

ANDZIAK, B.A.; BUFFENSTEIN, R.; O’CONNOR, T.P.; The City College of New York, CUNY & The Graduate School and University Center, CUNY; The City College of New York, CUNY & The Graduate School and University Center, CUNY; The City College of New York, CUNY & The Graduate School and University Center, CUNY: Oxidative damage tolerance in […]

MACKIE, P*; SHIH, J; WRIGHT, P; BALLANTYNE, J; University of Guelph, Ontario: Osmoregulatory effects of early introduction to cold seawater in Atlantic salmon (Salmo salar) smolts Due to the costly practise of maintaining juvenile salmon through the winter, salmon producers in Europe have turned to producing out-of-season or 0+ smolts that are released into sea […]

ALBERS, MA; BRADLEY, TJ; University of California, Irvine; University of California, Irvine: Osmoregulation in Drosophila melanogaster populations selected for enhanced desiccation resistance We have examined osmoregulatory ability in the insect Drosophila melanogaster by measuring hemolymph osmotic concentration during desiccation. Hemolymph osmolality was determined using melting point depression measured with a Clifton nanolitre osmometer. We compared […]

KHODABANDEH, S.; KUTNIK, M.; CHARMANTIER-DAURES, M.*; CHARMANTIER, G.; Univ. Montpellier II, France; Univ. Montpellier II, France; Univ. Montpellier II, France; Univ. Montpellier II, France: Ontogeny of the antennal glands in the crayfish, Astacus leptodactylus. Crayfishes owe their ability to live in freshwater to several ontogenetical morpho-functional adaptations. The results reported here, oriented toward the study […]

PARRIES, S.C.; TURNER, S.; GOLDBERG, J.I.; University of Alberta: Nitric oxide synthase localization in embryos of the pond snail Helisoma trivolvis. Embryos of the pond snail Helisoma trivolvis have proven useful in elucidating the developmental roles of neurotransmitters, with the actions of serotonin (5-HT) being the most thoroughly studied. A pair of identified bilaterally symmetrical, […]

MEDLER, S; CHANG, ES; MYKLES, DL; Colorado State University; Bodega Marine Lab; Colorado State University: Myofibrillar gene expression in lobster skeletal muscles Skeletal muscle fibers of crustaceans exhibit diversity in myofibrillar assemblage, similar to fibers from mammals and other animals. For example, lobster (Homarus americanus) fast fibers express fast myosin heavy chain (MHC), P75, and […]

CAPUTO*, N.D.*; WEAVER, F.E.; COUGHLIN, D.J.; Widener University, Chester, PA: Muscle Contraction and Troponin T Expression in Rainbow Trout Red Muscle This study investigated how expression of the muscle protein Troponin T (TnT) relates to muscle contraction. Previous work has shown that red or aerobic muscle from the anterior of rainbow trout (Oncorhynchus mykiss) activates […]

DAVIS, E.C.; University of Kansas: Mucus trail detection in freshwater and terrestrial pulmonate snails Mucus trail following has been observed in a variety of gastropods, including limpets, periwinkles, mud snails, and the rosy wolf snail. Some pulmonate snails have been shown to follow mucus trails with directionality. Because the snails are hermaphroditic, trail following may […]

VINOGRADOV , A.A.; ANDREEVA , I.V.; BOYARCHUK , E.D.; SAMCHUK , V.A.; VINOGRADOV , O.A.; RUDENKO , E.F.; Lugansk State Pedagogic University; Lugansk State Medical University; Lugansk State Pedagogic University; Lugansk State Pedagogic University; Lugansk State Pedagogic University; Lugansk State Medical University: Morphological basis of the immunebiological supervision of the gastric digestion in the ontogenesis […]