scholarly journals Erratum: Phylogeography and Ecological Niche Shape the Cichlid Fish Gut Microbiota in Central American and African Lakes

2020 ◽  
Vol 11 ◽  
Author(s):  
Keyword(s):  
Gut Microbiota ◽  
Ecological Niche ◽  
Cichlid Fish ◽  
Central American ◽  
African Lakes ◽  
Fish Gut

scholarly journals Response of Fish Gut Microbiota to Toxin-Containing Cyanobacterial Extracts: A Microcosm Study on the Medaka (Oryzias latipes)

2019 ◽  
Vol 6 (6) ◽  
pp. 341-347 ◽  
Author(s):  
Sébastien Duperron ◽  
Sébastien Halary ◽  
Myriam Habiballah ◽  
Alison Gallet ◽  
Hélène Huet ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Oryzias Latipes ◽  
Microcosm Study ◽  
Fish Gut

scholarly journals Host development overwhelms environmental dispersal in governing the ecological succession of zebrafish gut microbiota

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Fanshu Xiao ◽  
Wengen Zhu ◽  
Yuhe Yu ◽  
Zhili He ◽  
Bo Wu ◽  
...  
Keyword(s):  
Microbial Community ◽  
Gut Microbiota ◽  
Environmental Effects ◽  
Developmental Stages ◽  
Ecological Succession ◽  
Community Succession ◽  
Fish Gut ◽  
Gut Microbial Community ◽  
Host Development ◽  
Microbial Community Succession

AbstractClarifying mechanisms underlying the ecological succession of gut microbiota is a central theme of gut ecology. Under experimental manipulations of zebrafish hatching and rearing environments, we test our core hypothesis that the host development will overwhelm environmental dispersal in governing fish gut microbial community succession due to host genetics, immunology, and gut nutrient niches. We find that zebrafish developmental stage substantially explains the gut microbial community succession, whereas the environmental effects do not significantly affect the gut microbiota succession from larvae to adult fish. The gut microbiotas of zebrafish are clearly separated according to fish developmental stages, and the degree of homogeneous selection governing gut microbiota succession is increasing with host development. This study advances our mechanistic understanding of the gut microbiota assembly and succession by integrating the host and environmental effects, which also provides new insights into the gut ecology of other aquatic animals.

scholarly journals Parallel and non-parallel changes of the gut microbiota during trophic diversification in repeated young adaptive radiations of sympatric cichlid fish

2020 ◽  
Author(s):  
Andreas Härer ◽  
Julián Torres-Dowdall ◽  
Sina J. Rometsch ◽  
Elizabeth Yohannes ◽  
Gonzalo Machado-Schiaffino ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Microbial Communities ◽  
Trophic Ecology ◽  
Cichlid Fish ◽  
Conclusive Evidence ◽  
Rrna Gene ◽  
Crater Lakes ◽  
Ecological Diversification ◽  
Early Stages ◽  
Adaptive Radiations

Abstract Background: Recent increases in understanding the ecological and evolutionary roles of microbial communities has underscored the importance for their hosts’ biology. Yet, little is known about gut microbiota dynamics during early stages of ecological diversification and speciation. We sequenced the V4 region of the 16s rRNA gene to study the gut microbiota of Nicaraguan Midas cichlid fish (Amphilophus cf. citrinellus). Specifically, we tested the hypothesis that parallel divergence in trophic ecology in extremely young adaptive radiations from two crater lakes is associated with parallel changes of their gut microbiota. Results: Bacterial communities of fish guts and lake water were highly distinct, indicating that the gut microbiota is shaped by host-specific factors. Among individuals of the same crater lake, differentiation in trophic ecology was weakly associated with gut microbiota differentiation, suggesting that diet, to some extent, affects the gut microbiota. However, differences in trophic ecology were much more pronounced across than within species whereas similar patterns were not observed for taxonomic and functional differences of the gut microbiota. Across the two crater lakes, we could not detect conclusive evidence for parallel changes of the gut microbiota associated with trophic ecology. Conclusions: A lack of clearly differentiated niches during early stages of ecological diversification might result in non-parallel changes of gut microbial communities, as observed in our study system as well as in other recently diverged fish species.

scholarly journals Parallel and non-parallel changes of the gut microbiota during trophic diversification in repeated young adaptive radiations of sympatric cichlid fish

2020 ◽  
Author(s):  
Andreas Härer ◽  
Julián Torres-Dowdall ◽  
Sina J. Rometsch ◽  
Elizabeth Yohannes ◽  
Gonzalo Machado-Schiaffino ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Microbial Communities ◽  
Trophic Ecology ◽  
Cichlid Fish ◽  
Conclusive Evidence ◽  
Rrna Gene ◽  
Crater Lakes ◽  
Ecological Diversification ◽  
Early Stages ◽  
Adaptive Radiations

Abstract Background: Recent increases in understanding the ecological and evolutionary roles of microbial communities has underscored the importance for their hosts’ biology. Yet, little is known about gut microbiota dynamics during early stages of ecological diversification and speciation. We sequenced the V4 region of the 16s rRNA gene to study the gut microbiota of Nicaraguan Midas cichlid fish ( Amphilophus cf. citrinellus ). Specifically, we tested the hypothesis that parallel divergence in trophic ecology in extremely young adaptive radiations from two crater lakes is associated with parallel changes of their gut microbiota.Results: Bacterial communities of fish guts and lake water were highly distinct, indicating that the gut microbiota is shaped by host-specific factors. Among individuals of the same crater lake, differentiation in trophic ecology was weakly associated with gut microbiota differentiation, suggesting that diet, to some extent, affects the gut microbiota. However, differences in trophic ecology were much more pronounced across than within species whereas similar patterns were not observed for taxonomic and functional differences of the gut microbiota. Across the two crater lakes, we could not detect conclusive evidence for parallel changes of the gut microbiota associated with trophic ecology.Conclusions: A lack of clearly differentiated niches during early stages of ecological diversification might result in non-parallel changes of gut microbial communities, as observed in our study system as well as in other recently diverged fish species.

scholarly journals Parallel and non-parallel changes of the gut microbiota during trophic diversification in repeated young adaptive radiations of sympatric cichlid fish

2019 ◽  
Author(s):  
Andreas Härer ◽  
Julián Torres-Dowdall ◽  
Sina Rometsch ◽  
Elizabeth Yohannes ◽  
Gonzalo Machado-Schiaffino ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Trophic Ecology ◽  
Crater Lake ◽  
Parallel Evolution ◽  
Cichlid Fish ◽  
Crater Lakes ◽  
Functional Changes ◽  
Ecological Diversification ◽  
Early Stages ◽  
Adaptive Radiations

AbstractRecent increases in understanding the ecological and evolutionary roles of microbial communities has underscored their importance for their hosts’ biology. Yet, little is known about gut microbiota dynamics during early stages of ecological diversification and speciation. We studied the gut microbiota of extremely young adaptive radiations of Nicaraguan crater lake cichlid fish (Amphilophus cf. citrinellus) to test the hypothesis that parallel evolution in trophic ecology is associated with parallel changes of the gut microbiota. Bacterial communities of the water (eDNA) and guts were highly distinct, indicating that the gut microbiota is shaped by host-specific factors. Across individuals of the same crater lake, differentiation in trophic ecology was associated with gut microbiota differentiation, suggesting that diet affects the gut microbiota. However, differences in trophic ecology were much more pronounced across than within species whereas little evidence was found for similar patterns in taxonomic and functional changes of the gut microbiota. Across the two crater lakes, we could not detect evidence for parallel changes of the gut microbiota associated with trophic ecology. Similar cases of non-parallelism have been observed in other recently diverged fish species and might be explained by a lack of clearly differentiated niches during early stages of ecological diversification.

scholarly journals Parallel and non-parallel changes of the gut microbiota during trophic diversification in repeated young adaptive radiations of sympatric cichlid fish

2020 ◽  
Author(s):  
Andreas Härer ◽  
Julián Torres-Dowdall ◽  
Sina J. Rometsch ◽  
Elizabeth Yohannes ◽  
Gonzalo Machado-Schiaffino ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Microbial Communities ◽  
Trophic Ecology ◽  
Cichlid Fish ◽  
Conclusive Evidence ◽  
Rrna Gene ◽  
Crater Lakes ◽  
Ecological Diversification ◽  
Early Stages ◽  
Adaptive Radiations

Abstract Background: Recent increases in understanding the ecological and evolutionary roles of microbial communities has underscored the importance for their hosts’ biology. Yet, little is known about gut microbiota dynamics during early stages of ecological diversification and speciation. We sequenced the V4 region of the 16s rRNA gene to study the gut microbiota of Nicaraguan Midas cichlid fish ( Amphilophus cf. citrinellus ). Specifically, we tested the hypothesis that parallel divergence in trophic ecology in extremely young adaptive radiations from two crater lakes is associated with parallel changes of their gut microbiota. Results: Bacterial communities of fish guts and lake water were highly distinct, indicating that the gut microbiota is shaped by host-specific factors. Among individuals of the same crater lake, differentiation in trophic ecology was weakly associated with gut microbiota differentiation, suggesting that diet, to some extent, affects the gut microbiota. However, differences in trophic ecology were much more pronounced across than within species whereas similar patterns were not observed for taxonomic and functional differences of the gut microbiota. Across the two crater lakes, we could not detect conclusive evidence for parallel changes of the gut microbiota associated with trophic ecology. Conclusions: A lack of clearly differentiated niches during early stages of ecological diversification might result in non-parallel changes of gut microbial communities, as observed in our study system as well as in other recently diverged fish species.

Therapeutic modulation of fish gut microbiota, a feasible strategy for aquaculture?

Aquaculture ◽  
2021 ◽  
pp. 737050
Author(s):  
Francisco Vargas-Albores ◽  
Luis Rafael Martínez-Córdova ◽  
Adrián Hernández-Mendoza ◽  
Francesco Cicala ◽  
Asunción Lago-Lestón ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Fish Gut

scholarly journals Niche modeling remarks of Luidia senegalensis (Lamarck, 1816) (Asteroidea, Luidiidae) after 30 years of its first capture in the northeastern Brazilian coast

2020 ◽  
Vol 48 (3) ◽  
pp. 497-505
Author(s):  
Carolina T. Puppin-Gonçalves ◽  
Matheus Arthur L. Rocha ◽  
Carlos E.R.D. Alencar ◽  
Sávio A.S.N. Moraes ◽  
Paulo V.N. Araújo ◽  
...  
Keyword(s):  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Niche Modeling ◽  
Central American ◽  
Southeastern Brazil ◽  
Salinity Range ◽  
Brazilian Coast ◽  
Northeast Brazil ◽  
Artisanal Fishery ◽  
Brazilian Northeast

After more than 30 years of species' first capture on the Brazilian northeast coast, we report the second occurrence of the starfish Luidia senegalensis with niche modeling remarks on its distribution. Bottom trawl net collected specimens with artisanal fishery boat in Rio Grande do Norte State, northeast Brazil. It was noted the existence of a large number of regions, with high suitability for the occurrence of this species, in South America taking into account the ecological niche modeling, when compared to North and Central American continents. Benthic salinity range, calcite, and benthic minimum temperature were the most relevant for modeling. The northeastern, eastern, and southeastern Brazil ecoregions showed the most considerable amount of areas with high suitability for L. senegalensis. The niche modeling revealed essential aspects of the species and its distribution, raising concerns with regards to its future stability.

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