CUNNINGHAM, Adele*; WATTS, Stephen A.; University of Alabama at Birmingham: Do oocytes of the sea urchin Lytechinus variegatus compete for nutrients? Adult Lytechinus variegatus were collected over a period of 28 months (three reproductive seasons; n= ~ 16 urchins per month) and H&E slides were made from gonad sections. Histology indicates that oocytes develop asynchronously […]

VEILLETTE, PA*; BREVES, JP; REARDON, DR; SPECKER, JL; University of Rhode Island; University of Rhode Island; University of Rhode Island; University of Rhode Island: COMPENSATORY HYPERTROPHY IN FLOUNDER GUT We investigated the osmoregulatory physiology of the marine teleost summer flounder (Paralicthys dentatus) that had a pathologically shortened gastrointestinal tract due to necrotizing enteritis. Evidenced by […]

COUGHLIN, DJ*; CARROLL, AM; Widener Univ.; Univ. of California, Davis: in vitro Estimates of Power Output by Epaxial Muscle During Feeding in Bass Recent work has employed video and sonometric analysis combined with hydrodynamic modeling to estimate power output by the feeding musculature of largemouth bass in feeding trials. The result was a estimate of […]

NAUWELAERTS, S*; WILGA, C.D.; SANFORD, C.P.; LAUDER, G.V.; University of Rhode Island; University of Rhode Island; Hofstra University; Harvard University: Substrate Increases Suction Feeding Effectiveness In Bamboo Sharks The effectiveness of suction feeding depends on the fluid flow pattern around the mouth and modulation of prey capture. Prior modeling and empirical findings have shown that […]

ANDERSON, Noah, J*; ANDERSON, Curtis, W.; Idaho State University; Idaho State University: Kinematics of aquatic feeding in the softshell turtle, Apalone spinifera, with comments on the role of suction in turtle feeding. Generation of negative buccal pressure is a necessary component of aquatic feeding for many vertebrates. While past studies found similar mechanics of the […]

SAMARCO, Thomas/ J.*; TURINGAN, Ralph/ G.; Florida Institute of Technology; Florida Institute of Technology: Intraspecific Variation in Scaling of Prey Capture Kinematics in the teleost fish, Sciaenops ocellatus Body size influences the ability of an organism to function in its environment. Previous studies involving a wide range of body size of fishes revealed that feeding […]

WEGNER, N. C.*; SEPULVEDA, C. A.; GRAHAM, J. B.; Scripps Institution of Oceanography, University of California, San Diego; Pfleger Institute of Environmental Research; Scripps Institution of Oceanography, University of California, San Diego: Gill specializations of the shortfin mako, Isurus oxyrinchus, a lamnid shark. The tunas (family Scombridae) and the lamnid sharks (family Lamnidae) demonstrate a […]

DOLCE, JL*; WILGA, CD; University of Rhode Island; University of Rhode Island: Gill Slit Kinematics in Suction and Ram Ventilating Sharks The movement of the gill slits during suction and ram ventilation in elasmobranchs differs mechanistically. The gill slits remain open during continuous swimming in ram ventilation. In suction ventilation, the gill slits open for […]

PACE, C. M.*; GIBB, A. C.; Northern Arizona University: Feeding kinematics of the pike killifish, Belonesox belizanus, a predominantly piscivorous poeciliid. The pike killifish, Belonesox belizanus, is the largest member of the Poeciliinae and the only species in this subfamily that is predominantly piscivorous. It shares morphological traits such as an elongate fusiform body, large […]

SANFORD, Christopher P.*; AJEMIAN, Matt J.; Hofstra University, New York; Hofstra University, New York: Evaluating the importance of new structures versus new muscle activity patterns in the evolution of a novel feeding mechanism in salmonid fishes. Understanding how new functions evolve within the framework of a tightly integrated system has been one of the greatest […]