Search Results - "Shapiro, D Y"

Sperm allocation, sperm production and fertilization rates in the bucktooth parrotfish by MARCONATO, A., SHAPIRO, D.Y.

“…Males and females of pelagically spawning marine fishes face different problems in maximizing reproductive success. Males must allocate sperm over frequent,…”
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Sperm Economy in a Coral Reef Fish, Thalassoma Bifasciatum by Shapiro, Douglas Y., Marconato, Andrea, Yoshikawa, Tomoko

“…In many coral reef fishes, males face the evolutionary problems of how to allocate sperm among frequent, daily mating in order to maximize the number of eggs…”
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Sexual Conflict: Males with Highest Mating Success Convey the Lowest Fertilization Benefits to Females by Warner, Robert R., Shapiro, Douglas Y., Marcanato, Andrea, Petersen, Christopher W.

“…In natural populations of a coral reef fish (the bluehead wrasse, Thalassoma bifasciatum), males with the highest daily mating success produce the fewest sperm…”
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Methodological analysis of fertilization rate in the bluehead wrasse Thalassoma bifasciatum: pair versus group spawns by Marconato, A., Shapiro, D. Y., Petersen, C. W., Warner, R. R., Yoshikawa, T.

“…Accurate measurement of fertilization rate (FR) is essential for reproductive studies of pelagically spawning marine organisms. We compared the reliability of…”
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Morphology of gonoducts and male genital papilla, in the bluehead wrasse: implications and correlates on the control of gamete release by Rasotto, M. B., Shapiro, D. Y.

“…In the coral reef fish Thalassoma bifasciatum, males vary the number of sperm they release in successive spawnings with individual females in accordance with…”
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Gonadal structure and population characteristics of the protogynous goby Coryphopterus glaucofraenum by COLE, K. S, SHAPIRO, D. Y

“…Protogynous hermaphroditism has been reported in two gobiid species within the genus Coryphopterus , including C. nicholsi from the temperate northeastern…”
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Evaluating Kinship of Newly Settled Juveniles Within Social Groups of the Coral Reef Fish Anthias squamipinnis by Avise, John C., Shapiro, Douglas Y.

“…It is conventionally assumed that eggs and/or larvae of most coral reef fishes are thoroughly mixed during a pelagic phase, so that juvenile recruits at any…”
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Behavioral influences on gene structure and other new ideas concerning sex change in fishes by SHAPIRO, D. Y

“…The interpretation of experiments, designed to reveal whether sex change is induced behaviorally, can influence the type of physiological mechanism proposed to…”
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Patterns of space use common to widely different types of social groupings of a coral reef fish by Shapiro, D Y

“…The protogynous, Indo-Pacific serranid fish Anthias squamipinnis forms three types of social groupings: discrete groups, continuous masses, and intermediate…”
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The occurrence of the transposable element pogo in Drosophila melanogaster by BOUSSY, I. A, CHARLES, L, HAMELIN, M. H, PERIQUET, G, SHAPIRO, D. Y

“…We examined the genomic occurrence of the transposable element pogo in over 120 strains of Drosophila melanogaster, from around the world and from different…”
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Pelagic spawning and egg transport in coral-reef fishes: a skeptical overview by SHAPIRO, D. Y, HENSLEY, D. A, APELDOORN, R. S

“…In this editorial, the authors review the literature and reveal the urgent need for careful studies evaluating spawning times and sites, and non-spawning times…”
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Population pharmacokinetics of gabapentin in infants and children by Ouellet, Danièle, Bockbrader, Howard N, Wesche, David L, Shapiro, Douglas Y, Garofalo, Elizabeth

“…Purpose: To characterize gabapentin pharmacokinetics in infants and children using a population approach and to identify important demographic and/or…”
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Size, Composition, and Spatial Structure of the Annual Spawning Aggregation of the Red Hind, Epinephelus guttatus (Pisces: Serranidae) by Shapiro, Douglas Y., Sadovy, Yvonne, McGehee, M. Angela

“…Annual spawning aggregations of the red hind, Epinephelus guttatus, occurring at the time of full moon in Jan., were surveyed off the southwest coast of Puerto…”
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Components of fertilization success in the bluehead wrasse, Thalassoma bifasciatum by Petersen, Christopher W., Warner, Robert R., Shapiro, Douglas Y., Marconato, Andrea

“…In many species of marine organisms, males and females release gametes directly into the water column. Although free-spawning marine invertebrates appear to…”
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Criteria for the Diagnosis of Hermaphroditism in Fishes by Sadovy, Yvonne, Shapiro, Douglas Y.

“…Certain of the criteria that have been used to establish hermaphroditism in fishes in the past are more reliable than others. Simple cases of simultaneous…”
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Mating tactics in external fertilizers when sperm is limited by Shapiro, Douglas Y., Giraldeau, Luc-Alain

“…Among externally fertilizing animals in aquatic habitats, the proportion of a female's egg clutch that is successfully fertilized often falls below 100%. In…”
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Plasticity of gonadal development and protandry in fishes by Shapiro, D Y

“…Sexual differentiation in eutherian mammals follows a simple governing paradigm: development proceeds in a female direction unless a masculinizing mechanism…”
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Social system of an inshore stock of the red hind grouper,Epinephelus guttatus (Pisces: Serranidae) by Shapiro, D Y, Garcia-Moliner, G, Sadovy, Y

“…According to sex allocation theory, the decision by a female in protogynous fish species to change sex or not should be influenced by, among other things, the…”
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Sex-changing fish as a manipulable system for the study of the determination, differentiation, and stability of sex in vertebrates by Shapiro, D Y

“…Two fundamental questions concerning vertebrate sexuality are what controls the stability of gender throughout the life of an individual and what are the…”
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Differentiation and Evolution of Sex Change in Fishes by Shapiro, Douglas Y.

“…Sex change consists of a switch from functioning as one sex to functioning as the other. This article examines recent developments in the study of sex change…”
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