Hormonally Derived Sex Pheromones in Fishes

Stacey, N. E.

doi:10.1016/b978-0-12-374932-1.00009-3

Cited by 20 publications

(43 citation statements)

References 119 publications

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“…Fish spawning activity lasted in average 50 ± 4 and 57 ± 5 min in tank C1 and tank C2 (Table 2), respectively. The average num- Mating behaviour in gilthead seabream the oocytes liberation (Bond, 1996;Domeier & Colin, 1997;Heyman et al, 2005;Stacey & Sorensen, 2008). In the present study, obvious behaviours associated with gaining dominance were not observed between males or males and females.…”

Section: Behaviour Descriptionmentioning

confidence: 39%

Mating behaviour and gamete release in gilthead seabream (Sparus aurata, Linnaeus 1758) held in captivity

Ibarra-Zatarain

Duncan

2015

Span. j. agric. res.

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The present study aimed to describe the reproductive behaviour of gilthead seabream (Sparus aurata) in captivity. Twenty-four mature gilthead seabream, divided in two tanks, were utilized for the present study. Reproductive behaviour was recorded using submersibles cameras. A total of 67 spawning events were analysed. The mean duration time that gilthead seabream spent spawning was 54 ± 4 min/day, during which mean number of individual spawning events was 5.6 ± 0.2. The mean volume of eggs produced by both broodstocks was 405 ± 13.4 mL with a fertilization rate of 91.6 ± 0.4%. The reproductive behaviour began with a schooling behaviour and then forming light aggregations. From an aggregation or an encounter while swimming freely a female initiated a spawning rush followed by one or more males to gametes liberation. The spawning rush was brief, 1.6 ± 0.5 sec, over an approximately 1.7 ± 0.2 m distance from the tank bottom to the water surface. Pair spawning, between a single female and male, was the most common (71.6%). Group spawning was less common and involved a single female spawning with two males (22.5%) or three males (4.9%). Spawning rushes involving more than one female were not observed. Gilthead seabream in the present study presented a tendency to pair spawn and eggs collected as a "spawn" were actually the sum of many separate spawning events over a short time period. This is the first description of gilthead seabream spawning and the findings help to understand microsatellite based observations of spawning kinetics. Additional key words: mate selection; pair group mass spawning; rush; aggregation Citation: Ibarra-Zatarain, Z.; Duncan, N. (2015). Mating behaviour and gamete release in gilthead seabream (Sparus aurata,

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Section: Behaviour Descriptionmentioning

confidence: 39%

Mating behaviour and gamete release in gilthead seabream (Sparus aurata, Linnaeus 1758) held in captivity

Ibarra-Zatarain

Duncan

2015

Span. j. agric. res.

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“…Among this group of chemicals, sex pheromones are involved in reproduction by mediating location of suitable partners, evoking appropriate behavioural and endocrine responses, and improving synchronisation of gametogenesis, spawning, fertility and paternity (see reviews by Burnard et al, 2008;Stacey et al, 2003). The identification and characterisation of these compounds is important for understanding fish reproductive physiology (Stacey, 2011) and as a potential tool for population management (e.g., aquaculture and species invasions) (Johnson and Li, 2010;Sorensen and Stacey, 2004).…”

Section: Introductionmentioning

confidence: 99%

Tilapia male urinary pheromone stimulates female reproductive axis

Huertas

Almeida

Canário

et al. 2014

General and Comparative Endocrinology

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a b s t r a c tMozambique tilapia males congregate in leks where they establish dominance hierarchies and attract females to spawn in sandy pits. Dominant males store more urine than subordinates and the pattern of urination and the high sensitivity of females to male urine suggest chemical signalling via the urine. Here we show that pre-ovulated and post-spawn females when exposed to dominant male urine increased significantly, in less than 1 h, the release rate of the maturation-inducing steroid 17,20b-dihydroxypregn-4-en-3-one which is maintained elevated for at least 6 h. This indicates a pheromonal role for male urine in the synchronisation of spawning. Furthermore, we show that the lack of affinity of 17,20bP to sex steroid binding globulin explains, at least partly, its rapid release and lack of detection in the blood. Thus tilapia urine involvement in several communication processes confirms that cichlids have evolved a sophisticated chemical signalling system together with their complex visual, acoustic and behavioural displays.

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“…Studies on goldfish have shown that males primed with the hormonal pheromone 17,20β-P have more active sperm compared to males that had not been exposed to the pheromone (De Fraipont and Sorensen 1993;Zheng et al 1997;Hoysak and Stacey 2008;Stacey 2011). Similar tendencies were found by Liley et al (2002) for rainbow trout, where adult males exposed to nesting females had a greater proportion of active sperm compared to unexposed males kept in all-male groups, although the difference was not significant.…”

Section: Discussionmentioning

confidence: 82%

“…Priming pheromones are known to increase milt production and hence the total number of spermatozoa, in both goldfish and salmonid males (Stacey 2011;Olsen and Liley 1993), although the concentration of sperm (estimated using spermatocrit) did not increase in the salmonids (Olsén and Liley 1993). Under natural spawning conditions for an external fertilizer such as salmonids, higher number of spermatozoa may be an advantage in the competition for fertilization (Petersen & Warner 1998).…”

Section: Discussionmentioning

confidence: 99%

“…A lot of the information about sex pheromones in fish is based on studies of goldfish and various salmonids. In goldfish and the related crucian carp (Carassius carassius), the sex pheromones are closely connected to the production of sex hormones (Stacey andSorensen 2002, 2006;Stacey et al 2003). Rising blood concentrations of the steroid 17,20β-dihydroxy-4-pregnen-3-one (17,20β-P) and prostaglandin F 2α (PGF2α) hormones indicates the reproduction readiness of the female, and the males has hence been found to detect these hormones and their metabolites at low concentrations (Sorensen et al 1989;Bjerselius and Olsén 1993;Kobayashi et al 2002).…”

Section: Introductionmentioning

confidence: 99%

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Sperm from pheromone primed brown trout (Salmo trutta L.) produce more larvae

Hellström

Prestegaard

Dannewitz

et al. 2012

Fish Physiol Biochem

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Male goldfish (Carassius auratus) exposed to female hormonal pheromones express increased milt volumes and their sperm fertilize more eggs than sperm from unprimed males. Ovulated salmonid females also release odours that increase volumes of strippable milt in males. It is, however, not known if the priming pheromones affect the ability of sperm to fertilize eggs in salmonids. In this study we compare the proportion of larvae produced from in vitro fertilization tests between primed brown trout (Salmo trutta) males exposed to a mix of female urine and ovarian fluids, and control males exposed only to 0.9 % sodium chloride. We also investigate priming effects on milt yield and sperm motility. Fertilization tests with sperm from single males, as well as sperm from two males (i.e. sperm competition), were performed. Primed males generated more larvae in both the single male and competition fertilization tests. No differences between treatments in milt yield and sperm motility could be established.

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Hormonally Derived Sex Pheromones in Fishes

Cited by 20 publications

References 119 publications

Mating behaviour and gamete release in gilthead seabream (Sparus aurata, Linnaeus 1758) held in captivity

Mating behaviour and gamete release in gilthead seabream (Sparus aurata, Linnaeus 1758) held in captivity

Tilapia male urinary pheromone stimulates female reproductive axis

Sperm from pheromone primed brown trout (Salmo trutta L.) produce more larvae

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