Endocrine and milt responses of male crucian carp (Carassius carassius L.) to periovulatory females under field conditions

Olsén, K. Håkan; Sawisky, Grant R.; Stacey, N. E.

doi:10.1016/j.ygcen.2006.06.011

Cited by 38 publications

(32 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Taken together, these results suggest that male guppies show adaptive plasticity both in the quantity and in the quality of the 'ready sperm' in response to the perceived mating opportunities. While an increase in sperm production in the presence of females has been reported in several taxa (Olsen & Liley 1993;Vermeirssen et al 1997;Aspbury & Gabor 2004;Olsen et al 2006), this is the first study, to our knowledge, to demonstrate an adjustment in sperm quality in response to mating opportunities.…”

Section: Discussionmentioning

confidence: 50%

Female presence influences sperm velocity in the guppy

2009

View full text Add to dashboard Cite

As sperm production is costly, males are expected to strategically allocate resources to sperm production according to mating opportunities. While sperm number adjustments have been reported in several taxa, only a few studies investigated whether sperm quality shows adaptive plasticity as well. We tested this prediction in the guppy, Poecilia reticulata . A total of 46 males were initially stripped of all retrievable sperm before being randomly allocated to one of two treatments simulating different levels of mating opportunities (visual contact with females or female deprived). After 3 days, males were stripped and sperm velocity was assayed using Computer Assisted Sperm Analysis. Males in the presence of females produced significantly faster sperm than their counterparts. Implications for the evolution of this ejaculate plasticity in the light of results of sperm competition studies are discussed.

show abstract

Section: Discussionmentioning

confidence: 50%

Female presence influences sperm velocity in the guppy

2009

View full text Add to dashboard Cite

show abstract

“…Chemical communication enhanced milt volume (sperm and seminal fluid) in Carassius auratus and Cyprinus carpio (10,34,35). Pinheiro et al (36) have shown that Nile tilapia males exposed to water with 17,20βP (5 x 10 -9 M) increased milt volume, spermatozoa motility and durability.…”

Section: Discussionmentioning

confidence: 98%

Visual communication stimulates reproduction in Nile tilapia, Oreochromis niloticus (L.)

Castro

Gonçalves-de-Freitas

Volpato

et al. 2009

Braz J Med Biol Res

View full text Add to dashboard Cite

Reproductive fish behavior is affected by male-female interactions that stimulate physiological responses such as hormonal release and gonad development. During male-female interactions, visual and chemical communication can modulate fish reproduction. The aim of the present study was to test the effect of visual and chemical male-female interaction on the gonad development and reproductive behavior of the cichlid fish Nile tilapia, Oreochromis niloticus (L.). Fifty-six pairs were studied after being maintained for 5 days under one of the four conditions (N = 14 for each condition): 1) visual contact (V); 2) chemical contact (Ch); 3) chemical and visual contact (Ch+V); 4) no sensory contact (Iso) -males and females isolated. We compared the reproductive behavior (nesting, courtship and spawning) and gonadosomatic index (GSI) of pairs of fish under all four conditions. Visual communication enhanced the frequency of courtship in males (mean ± SEM; V: 24.79 ± 3.30, Ch+V: 20.74 ± 3.09, Ch: 0.1 ± 0.07, Iso: 4.68 ± 1.26 events/30 min; P < 0.05, two-way ANOVA with LSD post hoc test), induced spawning in females (3 spawning in V and also 3 in Ch+V condition), and increased GSI in males (mean ± SEM; V: 1.39 ± 0.08, Ch+V: 1.21 ± 0.08, Ch: 1.04 ± 0.07, Iso: 0.82 ± 0.07%; P < 0.05, two-way ANOVA with LSD post hoc test). Chemical communication did not affect the reproductive behavior of pairs nor did it enhance the effects of visual contact. Therefore, male-female visual communication is an effective cue, which stimulates reproduction among pairs of Nile tilapia.

show abstract

“…In the aquaculture of this species, the first attempts have been made to reproduce wild spawners in captivity and to determine the basic protocols for larval rearing under controlled conditions Demény et al 2012). There are few articles allowing to understand the mechanisms of spermatozoa motility (Morisawa et al 1983) and the effect of different stimulants (pheromonal and hormonal) on the sperm quantity and motility (Olsen et al 2006;Cejko et al 2013) in crucian carp. However, according to our knowledge, there have been no published data on ivF and gamete management in this species.…”

Section: Introductionmentioning

confidence: 99%

Application of different activating solutions to in vitro fertilization of crucian carp, Carassius carassius (L.), eggs

et al. 2013

View full text Add to dashboard Cite

Within the study, the in vitro fertilization (ivF) in crucian carp, Carassius carassius (L.), with the use of three activating solutions (AS) [reverse osmosis water (RO), Woynarovich (WS) and Billard (BS) solutions] as well as the period of the capacity of eggs to be fertilized (up to 180 s post-egg-activation) in those solutions. Moreover, CASA analysis of sperm motility was conducted with each AS. In control groups (0 s), the highest (P \ 0.05) fertilization rate (93.2 %) was observed with WS. The application of RO and BS affected lower (P \ 0.05) embryo survival (63.5 and \5 %, respectively). High fertilization rate (over 90 %) was recorded up to 30 (RO) and 90 s (WS) post-egg-activation. Progressive sperm motility (pMOT) was high (over 48 %) in all treatment groups up to 30 s. In RO and WS groups, pMOT significantly decreased (P \ 0.05) after 45 s post activation. BS affected pMOT over 10 % up to the 165 s. No differences (P [ 0.05) between the groups were found considering the curvilinear velocity (VCL) 15 s postsperm-activation. Between 30 and 135 s, the lowest (P \ 0.05) VCL after application of RO was noted. The highest VCL (P \ 0.05) up to 135 s was noted after application of BS and WS. All AS activated crucian carp sperm. The lowest fertilization rate was noted when BS was used, despite the high pMOT and VCL. It suggest that the AS which activates the sperm properly may not activate the eggs probably due to high osmolality of BS (262 mOsm kg -1 ). Because eggs retained the longest period of activity in WS, this AS is suggested for ivF in crucian carp.

show abstract

Endocrine and milt responses of male crucian carp (Carassius carassius L.) to periovulatory females under field conditions

Cited by 38 publications

References 52 publications

Female presence influences sperm velocity in the guppy

Female presence influences sperm velocity in the guppy

Visual communication stimulates reproduction in Nile tilapia, Oreochromis niloticus (L.)

Application of different activating solutions to in vitro fertilization of crucian carp, Carassius carassius (L.), eggs

Contact Info

Product

Resources

About