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Welcome to the Pubget Medical Subject Headings (MESH) browser. Click on a topic or subtopic below to explore related papers. In the gold box is the most recent paper about the current MESH term, and below are 20 related papers.
Cichlids (1):
Recent article
Cichlids
Abstract
Ichthyophthirius multifiliis Fouquet (Ich) and Streptococcus iniae are 2 major pathogens of cultured Nile tilapia Oreochromis niloticus (L). Currently there is no information available for the effect of coinfection by Ich and S. iniae on fish. The objective of this study was to determine the effects...
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PMID: 19750806
PDF is available here.
PDF is available here.
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Behavioural Brain Research (201)1 2009
Abstract
We investigate the relationship between individual variation of asymmetry in the habenula of a South American cichlid fish, Geophagus brasiliensis, and behaviour in a commonly used test for visual laterality in fish, the detour task. We show that the strength of asymmetry in the habenula is correlat...
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PMID: 19428637
PDF is available here.
PDF is available here.
Abstract
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 +/-...
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PMID: 19330265
PDF is available here.
PDF is available here.
Abstract
We discuss the diversity of their visual systems. Cichlids have seven unique cone opsin genes, which produce visual pigments sensitive from the ultraviolet to the red end of the spectrum. Different species typically express three visual pigments to produce a trichromatic visual system. Because speci...
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PMID: 21392278
PDF is available here.
PDF is available here.
Abstract
Freshwater fish Oreochromis niloticus exposed to 0.05 microg/mL of Cu, Cd, Zn, Ag and Cr for up to 30 days. Only Ag, which exceeded environmentally realistic concentrations by a factor of >100 caused fish mortality within this period. Metals increased aspartate transaminase (AST) activity, while the...
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PMID: 18953474
PDF is available here.
PDF is available here.
Molecules and Cells (27)3 2009
Abstract
We used pharmacologic and molecular approaches to identify the muscarinic subreceptors and the intracellular signaling pathways involved in this motility. Myography assays revealed that an M1- and M3-subtype selective antagonist, but not a M2-subtype selective antagonist, inhibited carbachol HCI (CC...
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PMID: 19326086
PDF is available here.
PDF is available here.
Abstract
Nile tilapia Oreochromis niloticus were medicated with florfenicol (AQUAFLOR type A medicated article; Schering-Plough Animal Health, Summit, New Jersey) via a medicated ration at 15 mg florfenicol x kg fish body weight(-1) d(-1) for 10 d to compare the elimination kinetics of the test article in di...
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PMID: 19485121
PDF is available here.
PDF is available here.
Abstract
The objective of this study was to characterize the reproduction of Cichla kelberi in an artificial lake, located in the municipality of Leme, in the state of São Paulo, Brazil. Breeding occurred in spring, and summer. The L(50) and the L(100) of this species were 192 and 235 mm (L(50)), for male...
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PMID: 19347162
PDF is available here.
PDF is available here.
Abstract
This work evaluates the variation of the parasitological indexes in 114 Cichla piquiti Kullander and Ferreira, 2006 (tucunaré) infected by two proteocephalid species (Cestoda) for the period of August 1999 to June 2001 in the Volta Grande reservoir, MG, Brazil. The relation between the parasitosi...
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PMID: 19347164
PDF is available here.
PDF is available here.
Abstract
We used phylogenetic comparative analyses of sexed adults from 39 Tanganyikan cichlid species in a multiple regression framework to investigate the influence of ecology, sexual selection and parental care patterns on whole brain size, as well as to analyse sex-specific effects. First, using species-...
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PMID: 18796397
PDF is available here.
PDF is available here.
Abstract
The purpose of this paper is to investigate the protein enrichment of apple pomace by Gongronella butleri through solid-state cultivation and addition of this material as feed for tilapia fry (Oreochromis niloticus). Factorial experimental design was used for the assessment of culture conditions to...
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PMID: 18600303
PDF is available here.
PDF is available here.
Neuroendocrinology (89)1 2009
Abstract
We unexpectedly found immunoreactive neurons in the preoptic area, sending their projections through different brain areas and neurohypophysis. Our previous work using Western blot and IHC techniques applied to the adult brain confirmed these findings. To further demonstrate the extrapituitary expre...
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PMID: 18758154
PDF is available here.
PDF is available here.
Biological Research (42)4 2009
Abstract
This study evaluates the bioactivity of the crude ethanol extract and ethyl acetate, hexane and chloroform fractions obtained from Eugenia uniflora leaves using the hepatopancreas of Oreochromis niloticus L. as an experimental model. The ethanol extract and fractions were administered to the fish or...
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PMID: 20140296
PDF is available here.
PDF is available here.
Biological Research (42)2 2009
Abstract
Hyptidendron canum (Pohl ex Benth.) Harley is a native tree of the Brazilian Savannah. The fish Oreochromis niloticus L. was used as an experimental model to determine the bioactivity of the crude ethanol extract as well as ethyl acetate, hexanic and chloroform fractions obtained from its leaves. Th...
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PMID: 19746260
PDF is available here.
PDF is available here.
Behavioural Processes (80)1 2009
Abstract
We examined whether this sexual dimorphism was reflected in a female-biased actual sex ratio (ASR) and whether convict cichlid females would exhibit behavioral traits typified in monogamous males when they possessed the extravagant colors and/or morphology. Our field observations revealed that femal...
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PMID: 18929629
PDF is available here.
PDF is available here.
Abstract
We analyzed karyotypes and cytogenetic characteristics of Symphysodon aequifasciatus, S. discus and S. haraldi using C-banding and fluorescent in situ hybridization (FISH) with the Rex3 retrotransposon and 5S rDNA probes in mitotic and meiotic chromosomes. In the 3 species, diploid chromosome number...
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PMID: 20110656
PDF is available here.
PDF is available here.
Abstract
Surprisingly, laboratory mate choice experiments revealed significant assortative mating not only between population pairs with differently coloured males, but between population pairs with similarly-coloured males too. This suggested that assortative mating could be based on non-visual cues, so we...
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PMID: 19265521
PDF is available here.
PDF is available here.
Abstract
In concordance with previous studies, the root of the East African cichlid radiations is nested within the so called "Tilapias", which is a paraphyletic assemblage. For the first time, we clarified tilapiine intragroup relationships and established three new monophyletic groups:"Oreochromini", "Bore...
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PMID: 19656365
PDF is available here.
PDF is available here.
Abstract
In mate choice experiments, both sexes preferred large mates irrespective of own body size suggesting mating preferences are not size-assortative. Especially males were highly selective for large females, probably because female body size signals direct fitness benefits. However, when potential mate...
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PMID: 19515244
PDF is available here.
PDF is available here.
Abstract
We apply Ontogenetic Sequence Analysis to 261 embryos of the Lake Victoria cichlid Haplochromis piceatus. The result of our analysis can be mapped as a complex web of 26,880 equally parsimonious developmental sequences. This topology reflects timing polymorphism (intraspecific heterochrony) among em...
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PMID: 19878284
PDF is available here.
PDF is available here.
Abstract
We recorded net development time of each organogenetic stage, cumulative time and characteristic structure differentiation for each stage. We found eight organogenetic stages for the digestive system, between the gastrula and the total re-adsorption of the vitelin sack. The total time for the organo...
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PMID: 19419087
PDF is available here.
PDF is available here.
Environmental Pollution (156)3 2008
Abstract
We use a multibiomarker approach in fish as an integrated strategy to assess the impact of pollution. It comprehends a general biomarker of fish health, the condition factor (CF), and specific biomarkers of contaminant exposure such as metallothionein (MT), acetylcholinesterase (AChE) activity and b...
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PMID: 18524439
PDF is available here.
PDF is available here.
Journal of Parasitology (94)6 2008
Abstract
I (cox1) strongly supports the status of O. mayae as a new species, as compared to O. manteri collected from cichlids in other localities of Mexico, Belize, and Guatemala....
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PMID: 18576841
PDF is available here.
PDF is available here.
Abstract
We have added and analyzed independent data sets (nuclear and morphological) to further confirm and strengthen the cytb-phylogenetic hypothesis. We have analyzed a combined cytb-nuclear (RAG1 and two S7 introns) data set of 48 species representing main heroine lineages to achieve further resolution...
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PMID: 18725305
PDF is available here.
PDF is available here.
Abstract
We tested whether the fish Nile tilapia (Oreochromis niloticus) in a monosex male group spends more energy and displays an agonistic profile, differently from males in male-female groups. Such differences are expected because males and females should compete for different reproductive resources. An...
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PMID: 19197498
PDF is available here.
PDF is available here.