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Histological and ultrastructural evidence for the role of gonadal steroid hormones in sex change in the protogynous wrasse Thalassoma duperrey
TLDR
The process of sex change from ovary to testis was divided into six stages on the basis of changes in the structure of the germinal and somatic elements, and sex change to male was considered complete with the beginning of active spermatogenesis and spermiation. Expand
Reproduction of the Antarctic fish Nototheniops nudifrons
The reproductive biology of the Antarctic fish Nototheniops nudifrons (Lönnberg, 1905) was analyzed by examination of the gonads of fish collected in March and April 1985 in trawls near Low Island,Expand
Marine Ecoregions of North America
Environmental determinants of butterflyfish social systems
SynopsisButterflyfishes (Chaetodontidae) display a variety of social systems, including monogamous pair-bonds, harems, and schooling with group spawning. The range of reproductive options availableExpand
Managing fishery impacts on deep-water coral ecosystems of the USA: emerging best practices
The USA has rich and varied deep-water coral ecosystems. Disturbances from bottom trawls have been well documented in certain habitats and are considered the major threat to deep- water corals inExpand
Histology, ultrastructure, and in vitro steroidogenesis of the testes of two male phenotypes of the protogynous fish, Thalassoma duperrey (Labridae).
TLDR
Results indicate a function of 17 alpha, 20 beta-P in male reproductive function, probably spermiation, and a relationship of Leydig cell development and high levels of 11-KT production to the terminal male phenotype, perhaps reproductive or aggressive behavior, rather than to male gametogenesis per se. Expand
Environmental determinants of butterflyfish social systems
TLDR
This system favors the evolution of cooperative behavior between mates to increase female fecundity, as long as the male has an opportunity of sharing in that reproduction. Expand
An experimental removal of a territorial pomacentrid: effects on the occurrence and behavior of competitors
  • T. Hourigan
  • Biology
  • Environmental Biology of Fishes
  • 1 March 1986
TLDR
The presence of the interspecifically territorial damselfish, S. fasciolatus, appears to be an important determinant of the behavior of these potential food competitors. Expand
Marine and estuarine ecosystem and habitat classification
The Ecological Society of America and NOAA's Offices of Habitat Conservation and Protected Resources sponsored a workshop to develop a national marine and estuarine ecosystem classification system.Expand
Mid-ocean isolation and the evolution of Hawaiian reef fishes.
The Hawaiian fish fauna has close affinities with the fauna of the Indo-west Pacific from which it is derived, but is depauperate. It is characterized by a large number of endemic species (30% ofExpand
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