Search Results - "LILEY, N. R"

Ejaculate expenditure and timing of gamete release in rainbow trout Oncorhynchus mykiss by Fitzpatrick, J. L., Liley, N. R.

“…Using a novel methodology, natural ejaculate volumes of 14 male rainbow trout Oncorhynchus mykiss were compared when males were housed with one female (absence…”
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Sperm characteristics and fertilization success of masculinized coho salmon ( Oncorhynchus kisutch) by Fitzpatrick, J.L., Henry, J.C., Liley, N.R., Devlin, R.H.

“…Endocrine technologies and sex modification of fish stocks are playing an increasingly important role in commercial aquaculture production. The characteristics…”
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Fertilization dynamics in sockeye salmon and a comparison of sperm from alternative male phenotypes by Hoysak, D J, Liley, N R

“…Sockeye salmon Oncorhynchus nerka sperm maintained high fertility for 10s after being exposed to water but fertility dropped sharply after that. Eggs also…”
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The significance of olfaction and social cues in milt availability, sexual hormone status, and spawning behavior of male rainbow trout (Oncorhynchus mykiss) by Olsén, K H, Liley, N R

“…Male rainbow trout orientate to a "releaser" pheromone emitted by an ovulated female. This chemical signal is not necessary for the completion of spawning…”
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Fertilization dynamics in sockeye salmon and a comparison of sperm from alternative male phenotypes by Hoysak, D. J., Liley, N. R.

“…Sockeye salmon Oncorhynchus nerka sperm maintained high fertility for 10 s after being exposed to water but fertility dropped sharply after that. Eggs also…”
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Social organisation and competition for refuges and nest sites in Coryphopterus nicholsii (Gobiidae), a temperate protogynous reef fish by KROON, F. J, DE GRAAF, M, LILEY, N. R

“…The ability of larger males to control resources and monopolise spawnings is thought to explain the benefits of protogyny in some animals. Here we describe the…”
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Androgen control of social status in males of a wild population of stoplight parrotfish, Sparisoma viride (Scaridae) by Cardwell, J R, Liley, N R

“…In the protogynous stoplight parrotfish (Sparisoma viride), large males defend territories that encompass the home-ranges of several mature females. However,…”
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Hormonal control of sex and color change in the stoplight parrotfish, Sparisoma viride by Cardwell, J R, Liley, N R

“…The stoplight parrotfish, Sparisoma viride, changes sex from female to male. In most cases, sex change is accompanied by dramatic change in coloration, from…”
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Endocrine changes associated with spawning behavior in male kokanee salmon (Oncorhynchus nerka) and the effects of anosmia by Liley, N R, Olsén, K H, Foote, C J, Van der Kraak, G J

“…This study examines the relationship between social status, behavioral activity, and hormone levels through the spawning cycle in male kokanee salmon…”
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Sexual Selection and Competitive Mating Success of Males Guppies (Poecilia reticulata) from Four Trinidad Populations by P. H. Luyten, Liley, N. R.

“…Luyten and Liley (1985) obtained evidence that in populations of Trinidad guppies from two clear headwater streams, where Rivulus hartii is the major aquatic…”
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PCPA increases aggression in male firemouth cichlids by Adams, C F, Liley, N R, Gorzalka, B B

“…We observed the effect of the 5-hydroxytryptamine synthesis inhibitor p-chlorophenylalanine on aggression in male firemouth cichlids (Cichlasoma meeki)…”
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Aromatase pathway mediates sex change in each direction by Kroon, Frederieke J, Munday, Philip L, Westcott, David A, Hobbs, Jean-Paul A, Liley, N. Robin

“…). Therefore, the regulation of E…”
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The effect of female presence on spermiation, and of male sexual activity on ‘ready’ sperm in the male guppy by Bozynski, Chantelle C, Liley, N.Robin

“…This study examines the effect of female presence on the amount of ‘strippable’ sperm, and the relationship between male sexual activity and the amount of…”
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Comparison of reproductive indicators and analysis of the reproductive seasonality of the tinfoil barb, Puntius schwanenfeldii, in the Perak River, Malaysia by MCADAM, D. S. O, LILEY, N. R, TAN, E. S. P

“…The reproductive seasonality of Puntius schwanenfeldii from the Perak River, Malaysia was investigated over a 19 month period. Females greater than 160g had…”
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Geographic Variation in the Sexual Behaviour of the Guppy, Poecilia Reticulata (Peters) by Luyten, P.H, Liley, N.R

“…Abstract The guppy, Poecilia reticulata, exhibits marked intraspecific variation in behaviour and morphology and occurs over a wide range of natural…”
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Endocrine changes associated with spawning behavior and social stimuli in a wild population of rainbow trout (Salmo gairdneri). I. Males by Liley, N R, Breton, B, Fostier, A, Tan, E S

“…Rainbow trout (Salmo gairdneri) were collected from a natural spawning population at Pennask Lake, B.C. Blood samples were taken from male trout at different…”
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The Role of Steroid Hormones in Protogynous Sex Change in the Blackeye Goby, Coryphopterus nicholsii (Teleostei: Gobiidae) by Kroon, Frederieke J, Liley, N.Robin

“…To detect and describe correlations between steroid concentrations and sexual function in the protogynous Coryphopterus nicholsii, we examined whole-body…”
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Endocrine changes associated with spawning behavior and social stimuli in a wild population of rainbow trout (Salmo gairdneri). II. Females by Liley, N R, Fostier, A, Breton, B, Tan, E S

“…Rainbow trout (Salmo gairdneri) were collected from a natural spawning population at Pennask Lake, B.C. Blood samples taken from female trout at different…”
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The effects of early and late androgen treatments on the behavior of Sarotherodon mossambicus (Pisces: Cichlidae) by Billy, A J, Liley, N R

“…Groups of Sarotherodon mossambicus were treated with androgen by immersion or oral treatment at various stages of development. Fish were allowed to mature and…”
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The role of estrogen and progesterone in the regulation of reproductive behaviour in female ring doves(Streptopelia risoria) under long vs. short photoperiods by Liley, N R

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