A5030414632- Reproductive biology and impacts on aquatic species
- Aquaculture Nutrition and Growth
- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Olfactory and Sensory Function Studies
- Neurobiology and Insect Physiology Research
- Aquaculture disease management and microbiota
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Fish Biology and Ecology Studies
- Identification and Quantification in Food
- Marine and fisheries research
- Reproductive Physiology in Livestock
- Hypothalamic control of reproductive hormones
- Estrogen and related hormone effects
- Insect Pheromone Research and Control
- Ovarian function and disorders
- Sperm and Testicular Function
- Hormonal and reproductive studies
- Neuroscience and Neuropharmacology Research
- Physiological and biochemical adaptations
- Phenothiazines and Benzothiazines Synthesis and Activities
- Ichthyology and Marine Biology
- Fish biology, ecology, and behavior
- Medical Imaging Techniques and Applications
- Advanced Chemical Sensor Technologies
University of Alberta
2003-2018
University of Minnesota
1995
Fisheries and Oceans Canada
1987
University of British Columbia
1974-1976
Island Health
1976
John Wiley & Sons (United States)
1968
This study establishes that ovulated female goldfish release F type prostaglandins (PGFs) to the water where they stimulate male spawning behavior and comprise postovulatory pheromone. We first demonstrated prostaglandin-injected immunoreactive PGFs water. Next, using electro-olfactogram recording (EOG), we determined waterborne function as potent olfactory stimulants for mature goldfish. Prostaglandin F2α (PGF2α) its metabolite 15-keto-prostaglandin (15K-PGF2α) were most prostaglandins;...
Prostaglandins (PGs) have been identified in gonads, semen, ovarian fluid, blood, and vitro incubates from a variety of teleosts. In teleosts, PGs appear to be involved ovulation (follicular rupture) female sexual behavior, possibly gonadotropin (GtH) secretion. An increase prostaglandin F (PGF) levels associated with GtH-induced occurs vivo the pond loach (Misgurnus anguillicaudatus) goldfish (Carassius auratus). Indomethacin (PG synthesis inhibitor) blocks these species and, goldfish, PG...
Abstract Most species of fish rely on pheromones (chemical signals released by conspecifics) to mediate social behaviours. Three categories can be discerned based their function: anti‐predator cues, and reproductive cues. Each these comprises that induce “primer” effects (developmental and/or endocrinological changes) “releaser” (strong behavioural changes). A handful have been chemically identified all are remarkably potent. Almost metabolic products whose production is seemingly...
Studies of the neural mechanisms underlying responsiveness to sex pheromones in male goldfish suggest that, contrary a currently popular hypothesis, olfactory system (cranial nerve 1), and not terminal 0), mediates chemosensory responses pheromones. When epithelium was exposed two identified pheromones, 17 alpha, 20 beta-dihydroxy-4-pregnen-3-one mixture prostaglandin F2 alpha its metabolite 15-keto-prostaglandin spontaneous activity neurons located medical portion bulb changed, while cell...
The volume of milt that could be stripped from male goldfish, Carassius auratus, increased dramatically when fish were exposed overnight to water with concentrations 17α,20β-dihydroxy-4-pregnen-3-one (17,20P) as low 10 −10 M. A variety free steroids (pregnenolone, androstenedione, testosterone, 11-ketotestosterone, 17β-estradiol) and glucuronated (etiocholanolone glucuronide, testosterone 17β-estradiol glucuronide), suggested by others function pheromones in fish, failed increase at a...