Results 81 to 90 of about 1,363 (211)

Subtle Microbiome Manipulation Using Probiotics Reduces Antibiotic-Associated Mortality in Fish

open access: yesmSystems, 2017
Prophylactic antibiotics in the aquaculture and ornamental fish industry are intended to prevent the negative impacts of disease outbreaks. Research in mice and humans suggests that antibiotics may disturb microbiome communities and decrease microbiome ...
Victor Schmidt   +4 more
doaj   +1 more source

Spatial and temporal variation of fish assemblages in a coastal lagoon of the Biosphere Reserve La Encrucijada, Chiapas, Mexico

open access: yesRevista de Biología Tropical, 2008
Composition and abundance of the ichthyofauna in estuarine and coastal lagoon systems of the South Pacific in Mexico have been scarcely studied. In particular, there is a lack of information on how environmental variables determine the spatio-temporal ...
Ernesto Velázquez-Velázquez   +2 more
doaj  

SIGNALING EFFICACY DRIVES THE EVOLUTION OF LARGER SEXUAL ORNAMENTS BY SEXUAL SELECTION. [PDF]

open access: yes, 2014
Why are there so few small secondary sexual characters? Theoretical models predict that sexual selection should lead to reduction as often as exaggeration, and yet we mainly associate secondary sexual ornaments with exaggerated features such as the ...
Iwasa, Y, Pomiankowski, A, Tazzyman, SJ
core  

Doenças parasitárias de peixes ornamentais de água doce, comercializados em Florianópolis, Santa Catarina, Brasil

open access: yesBoletim do Instituto de Pesca, 2018
A fauna parasitária de peixes ornamentais de Florianópolis, SC, Brasil foi avaliada entre junho de 2004 e junho de 2005. Xiphophorus maculatus (n=88), Xiphophorus helleri (n=27), Poecilia sphenops (n=20), Macropodus opercularis (n=20), Trichogaster ...
Rômi Sharon Piazza   +3 more
doaj  

Black spots and female association preferences in a sexual/asexual mating complex ( Poecilia , Poeciliidae, Teleostei) [PDF]

open access: yes, 2018
We investigated whether female association preferences for males are influenced by black spot disease (BSD), a parasite induced change of the host phenotype.
Burmeister, Heike   +3 more
core  

Life on the edge: hydrogen sulfide and the fish communities of a Mexican cave and surrounding waters [PDF]

open access: yes, 2018
Most eucaryotic organisms classified as living in an extreme habitat are invertebrates. Here we report of a fish living in a Mexican cave (Cueva del Azufre) that is rich in highly toxic H2S.
de León, Francisco   +6 more
core  

Protozoários e metazoários parasitos do cardinal Paracheirodon axelrodi Schultz, 1956 (Characidae), peixe ornamental proveniente de exportador de Manaus, Estado do Amazonas, Brasil. [PDF]

open access: yes, 2010
Os estudos sobre a parasitofauna de peixes ornamentais cultivados são de grande relevância para o conhecimento das espécies de parasitos, permitindo interferência em sua proliferação para evitar epizootias e, consequentemente, perdas econômicas na ...
BRITO, M. L. S.   +2 more
core  

Diseased fish in the freshwater trade: from retailers to private aquarists [PDF]

open access: yes, 2019
Millions of fish are transported between countries annually for the aquarium trade, yet no quantitative study has examined how disease frequency differs among species and stakeholders.
Cable, Joanne, Maceda-Veiga, Alberto
core   +2 more sources

Impact of urbanization on stream fish fauna in tropical catchments of the Malay Peninsula

open access: yesEcological Indicators
Since the 20th century, rapid urbanization has led to various environmental challenges. These include urban flooding due to changes in the water cycle, poor water quality, and the degradation of aquatic ecosystems. Additionally, urbanization has caused a
Rei Itsukushima   +5 more
doaj   +1 more source

Sexual harassment in live-bearing fishes (Poeciliidae): comparing courting and noncourting species [PDF]

open access: yes, 2017
Sexual harassment by males has been reported from several live-bearing fishes (Poeciliidae) and has been shown to inflict costs on females. For example, poeciliid females have reduced feeding opportunities when accompanied by a male because females ...
Makowicz, Amber M.   +3 more
core  

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