Results 101 to 110 of about 43,736 (288)

Predation shapes sperm performance surfaces in guppies [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2019
Sperm velocity is a key determinant of competitive fertilization success in many species. Selection is therefore expected to favour the evolution of faster sperm when the level of sperm competition is high. However, several aspects can determine the direction and strength of selection acting on this key performance trait, including ...
Alessandro Devigili   +2 more
openaire   +2 more sources

Acute toxicity of essential oil compounds (thymol and 1,8-cineole) to insectivorous guppy, Poecilia reticulata Peters, 1859

open access: yes, 2018
Thymol and 1,8-cineole are now known bioinsecticidal monoterpenes occurring in many essential oils. The present study determined their toxicity on insectivorous guppy fish, Poecilia reticulata Peters, 1859 known to feed on mosquito larvae.
V. Bullangpoti   +3 more
semanticscholar   +1 more source

Oxygen consumption from air and water, ammonia and urea‐N excretion, and Na+ fluxes during progressive aquatic hypoxia in Amazonian armoured catfish Pterygoplichthys gibbiceps and Pterygoplichthys pardalis

open access: yesJournal of Fish Biology, EarlyView.
Abstract The Amazonian loricariid fish Pterygoplichthys gibbiceps, from the Rio Negro, and Pterygoplichthys pardalis, from the Rio Solimões, are facultative air‐breathers that can use the stomach as an air‐breathing organ. Measurement of oxygen uptake under progressive aquatic hypoxia revealed a relatively high hypoxia resistance of both species.
Bernd Pelster   +2 more
wiley   +1 more source

PENGARUH WARNA WADAH PEMELIHARAAN TERHADAP PENINGKATAN INTENSITAS WARNA IKAN GUPPY (Poecilia reticulata)

open access: yese-Jurnal Rekayasa dan Teknologi Budidaya Perairan, 2018
Guppy is one of the most popular ornamental fish. In some ornamental fish, colour of aquarium can enhance the fish colour intensity. The research aims to determine the effect of different aquarium colour on Guppy colour intensity which maintenance on ...
Dimas Rizki Pratama   +2 more
semanticscholar   +1 more source

Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon

open access: yesJournal of Fish Biology, EarlyView.
Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster   +2 more
wiley   +1 more source

The Influence of Licorice Root (Glycyrrhiza glabra) on Sex Reversal in Guppy Poecilia reticulata

open access: yesInternational Journal of Secondary Metabolite, 2017
The roots and rhizomes of licorice (Glycyrrhiza) species have long been used worldwide as a herbal medicine and natural sweetener. Licorice is commonly present in menopausal botanical supplements in the United States.
Funda Turan
doaj   +1 more source

Soil phosphorus status in organic and conventional vegetable farms in Southeast Queensland, Australia [PDF]

open access: yes, 2007
The soil phosphorus (P) status (0-10 cm) of two farming systems (organic (OF) and conventional (CF) vegetable farms) at two locations (Gatton and Stanthorpe) was examined amongst a suite of soil fertility indicators.
Guppy, Chris   +3 more
core  

Implications of guppy (Poecilia reticulata) life‐history phenotype for mosquito control

open access: yesEcology and Evolution, 2017
Guppies (Poecilia reticulata) are frequently introduced to both natural and artificial water bodies as a mosquito control. Laboratory studies have demonstrated that guppies can consume large numbers of larval mosquitoes.
Misha L. Warbanski   +4 more
semanticscholar   +1 more source

A wild‐caught rosy barb Pethia conchonius in a British urban pond underscores the need to prevent aquarium releases

open access: yesJournal of Fish Biology, EarlyView.
Abstract A specimen of rosy barb Pethia conchonius of 51 mm standard length, encountered in an urban pond in London, is reported. This small cyprinid is native to lakes and streams in subtropical regions of southern Asia and is commonly sold as an ornamental fish.
Peter J. Barry   +3 more
wiley   +1 more source

Identifying Universal Fish Biomarker Genes in Response to PCB126 Exposure by Comparative Transcriptomic Analyses

open access: yesCurrent Issues in Molecular Biology
Water pollution remains a major environmental concern, with increased toxic by-products being released into water bodies. Many of these chemical contaminants persist in the environment and bio-accumulate in aquatic organisms.
Ira Agrawal, Ai Qi Lee, Zhiyuan Gong
doaj   +1 more source

Home - About - Disclaimer - Privacy