1,721,005 research outputs found
Post-copulatory sexual selection in Teleost fish: the influence of sperm competition on ejaculate quality
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Reproductive allocation in Aidablennius sphynx (Teleostei: Blenniidae): females lay more eggs faster when paired to larger males
No full textNo reason to sneak: why males of all sizes can breed in the hole-nesting blenny, Aidablennius sphynx
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Biomarker responses in the crab Carcinus aestuarii to assess environmental pollution in the Lagoon of Venice (Italy)
No full textIn the present study three biomarkers, acetylcholinesterase (AChE) activity, vitellogenin (Vg)-like proteins, ethoxyresorufin O-deethylase (EROD) activity, were evaluated in male crabs Carcinus aestuarii collected in 4 sites of the Lagoon of Venice, two sites located in the northern lagoon area and two in the southern one. The results obtained revealed differences among sites in relation to each specific biomarker. Hence, the use of a suite of biomarkers allowed to discriminate the sampling sites on the basis of differing pollution typologies, reflecting differing conditions of anthropogenic impact. The comparison between the northern and the southern lagoon area suggests a better condition for the latter if referring to Vg-like protein level and AChE activity. The lower EROD activity recorded in crabs from the northern sites may suggest a detrimental inhibitory effect of contaminants rather than a lack of induction due to lower pollution levels
Ejaculate traits in relation to male body size in the eastern mosquitofish Gambusia holbrooki
No full textNo simple relationship between male mating attraction and parental care: an example in a fish with exclusive male care
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Seminal fluid enhances competitiveness of territorial males’ sperm in a fish with alternative male reproductive tactics
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