MANAHAN, D.T.: Molecular physiology of amino acid transport during sea urchin development Classic studies on eggs of sea urchins have shown that many biological processes are activated at fertilization, such as changes in membrane transporters and increases in protein synthesis. After fertilization the ontogenetic changes that occur in rates of amino acid transport have also […]

MINER, BG; VONESH, JR: Implications of Environmental Variability for Phenotypic Plasticity Many organisms have evolved the ability to change their morphology in response to changes in the environment (phenotypic plasticity). To date, experimental studies of phenotypic plasticity have focused exclusively on phenotypic changes in different but constant treatments. Yet, we know that natural environments are […]

JARRETT, J.N.; RUSSELL, G.; O’DRISCOLL, M.; SULLIVAN, D.: Impact of Short-term Salinity Fluctuations on Larvae and Juveniles of Crepidula fornicata and C. plana The adult stages of most estuarine organisms are well adapted to environmental fluctuations characteristic of this habitat. However, larval stages of some marine invertebrates reared under constant or short-term conditions of low […]

GREEN, A.J.; MANAHAN, D.T.: Feeding state, aerobic enzyme activity, and respiration in echinoderm larvae In this study larvae of the echinoderms Asterina miniata and Lytechinus pictus were raised under different feeding regimes to investigate the relationship between metabolic rate and feeding history (starved to being fed ad libitum). Respiration rates were measured throughout development for […]

RIFFELL, J.A.*; ZIMMER, R.K.: Egg limitation may regulate fertilization success in a free-spawning marine invertebrate Sperm limitation has often been invoked as a major determinant of reproductive success for organisms that spawn their gametes into the ocean environment. However, the extent to which sperm limitation mediates fertilization success in the field requires knowledge of sperm-egg […]

PACE, DA; MANAHAN, DT: Differential protein accretion rates and energetic efficiency of protein synthesis during sea urchin development. The continual synthesis and degradation of protein is critical for growth and development in early life stages. The goal of the present study was to determine the energetic cost of protein synthesis in embryos and larvae of […]

WOLCOTT, Bryce D.; Univ. of California, Berkeley: Surviving the maelstrom: morphology, size, and danger of dislodgement of intertidal algae Wave-induced water motion has been shown to influence both the size and shape of organisms on rocky shores. The morphology of many seaweeds, for example, varies with flow conditions, resulting in a reduction of the mechanical […]

STEWART, Hannah/L; Univ. of California, Berkeley: Hydrodynamic consequences of buoyancy vs. flexural stiffness in the tropical alga Turbinaria ornata Benthic organisms maintain upright postures by high flexural stiffness (EI) or by buoyancy. An upright position in the water column can potentially increase mass transfer and light interception but may also expose sessile organisms to greater […]

SIDLAUSKAS, B. L.; CHERNOFF, B.; MACHADO-ALLISON, A.; University of Chicago and The Field Museum, Chicago, IL; University of Chicago and The Field Museum, Chicago, IL; Universidad Central de Venezuela, Caracas: Geographic and environmental variation in Bryconops cf. melanurus (Ostariophysi: Characidae) from the Brazilian Pantanal Morphometric analyses of 220 specimens of Bryconops cf. melanurus from the […]

BOLLER, M.L.*; CARRINGTON, E.; Univeristy of Rhode Island: Drag and flexibility in Chondrus crispus Stackhouse: what drives the Vogel Number? The reorientation of an intertidal alga with the flow of a crashing wave allows the alga to reduce drag by reducing the area projected into flow. This phenomenon, dubbed reconfiguration, manifests itself as a change […]