Results 251 to 260 of about 433,957 (310)

Evidence of Ringtail Expansion Into Idaho, USA. [PDF]

Ecol Evol
Rebholz PF, Lonsinger RC, Ausband DE.
europepmc   +1 more source

Amhy/Amhr2y-mediated sex determination in two distantly related teleosts relies on the conserved Alk3-Smad5 axis. [PDF]

Mol Biol Evol
Zhou L, Zhang L, Qu Z, Jian H, Zheng S, Li M, Wang D, Liu X.   +7 more
europepmc   +1 more source

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Neuroendocrinology of reproduction in teleost fish

General and Comparative Endocrinology, 2010
This review aims at synthesizing the most relevant information regarding the neuroendocrine circuits controlling reproduction, mainly gonadotropin release, in teleost fish. In teleosts, the pituitary receives a more or less direct innervation by neurons sending projections to the vicinity of the pituitary gonadotrophs.
Yonathan Zohar, José A Munoz-Cueto, Abigaïl Elizur   +2 more
exaly   +5 more sources

The reproductive brain in fish

Fish Physiology and Biochemistry, 1993
In fish as in other vertebrates, the brain is actively involved in the control of reproduction, first by participating, under the influence of external factors, in the establishment of an appropriate endocrine status, but also by allowing synchronization of the partners by the time of spawning. It is now well established that the pituitary gonadotropic
O, Kah, I, Anglade, E, Leprêtre, P, Dubourg, D, de Monbrison   +4 more
openaire   +2 more sources

Interaction “nutrition-reproduction” in fish

Fish Physiology and Biochemistry, 1986
In wild fish, gonad maturation and spawning induce modifications in feeding behaviour and dynamics of body stores which are possibly responsible for metabolic disorders. Conversely, food manipulations can modify reproduction of captive female broodstock.
Luquet, P., Watanabe, T.
openaire   +4 more sources

Impacts of moonlight on fish reproduction

Marine Genomics, 2014
The waxing and waning cycle of the moon is repeated at approximately 1-month intervals, and concomitant changes occur in the levels of moonlight and cueing signals detected by organisms on the earth. In the goldlined spinefoot Siganus guttatus, a spawner lunar-synchronized around the first quarter moon, periodic changes in moonlight are used to cue ...
Taro Ikegami, Yuki Takeuchi, Sung-Pyo Hur, Akihiro Takemura   +3 more
openaire   +2 more sources

Effect of toxaphene on reproduction of fish

Chemosphere, 1997
The effect of Toxaphene on fish reproduction was investigated in sexually mature female zebrafish fed for two weeks with food contaminated with three different concentrations of the Pesticide (0.02, 0.23 and 2.2 micrograms/g fish/day). No overt differences were observed in reproductive success as assessed by examination of (a) total number of eggs ...
G E, Ree, J F, Payne
openaire   +2 more sources

Genetics and reproduction in fish culture

Journal of Animal Science, 1991
Fish genetics has made major strides during the past 20 yr due both to improvements in the ability of fish culturists to manage reproduction and to deliberate experimentation and application. The general finding has been that the quantitative genetics of fish differ little from those of other animals and that the applications of animal improvement ...
openaire   +2 more sources

Assessing reproductive effects on fish populations: an evaluation of methods to predict the reproductive strategy of fishes

Environmental Monitoring and Assessment, 2020
Many environmental monitoring programs include an assessment of the health of fish populations using a sentinel species and include an indicator of reproductive potential. Knowledge of the reproductive strategy of the fish species is critical for data interpretation but is not always known.
Timothy J, Barrett, Melanie A, Rossong, Michael R, van den Heuvel, Kelly R, Munkittrick   +3 more
openaire   +2 more sources