scholarly journals Prey diversity as a driver of resource partitioning between river-dwelling fish species

2017 ◽  
Vol 7 (7) ◽  
pp. 2058-2068 ◽  
Author(s):  
Javier Sánchez-Hernández ◽  
Heidi-Marie Gabler ◽  
Per-Arne Amundsen
Keyword(s):  
Fish Species ◽  
Resource Partitioning ◽  
Prey Diversity

scholarly journals Functional Traits of Fish Species: Adjusting Resolution to Accurately Express Resource Partitioning

2019 ◽  
Vol 6 ◽  
Author(s):  
Victor E. L. da Silva ◽  
Luana P. S. Silva-Firmiano ◽  
Fabrício B. Teresa ◽  
Vandick S. Batista ◽  
Richard J. Ladle ◽  
...  
Keyword(s):  
Functional Traits ◽  
Fish Species ◽  
Resource Partitioning

Food resource partitioning between three sympatric fish species in Porsangerfjord, Norway

Polar Biology ◽  
2014 ◽  
Vol 38 (4) ◽  
pp. 583-589 ◽  
Author(s):  
Emma K. Källgren ◽  
Torstein Pedersen ◽  
Einar M. Nilssen
Keyword(s):  
Fish Species ◽  
Resource Partitioning ◽  
Food Resource ◽  
Food Resource Partitioning

scholarly journals Egg and larval amino acid composition as indicators of niche resource partitioning in pelagic fish species

2003 ◽  
Vol 260 ◽  
pp. 255-262 ◽  
Author(s):  
I Riveiro ◽  
C Guisande ◽  
C Franco ◽  
A Lago de Lanzós ◽  
I Maneiro ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Fish Species ◽  
Resource Partitioning ◽  
Pelagic Fish

Is resource partitioning the key? The role of intra‐interspecific variation in coexistence among five small endemic fish species (Characidae) in subtropical rivers

2018 ◽  
Vol 93 (2) ◽  
pp. 238-249 ◽  
Author(s):  
Mayara P. Neves ◽  
Jislaine C. Da Silva ◽  
Dirceu Baumgartner ◽  
Gilmar Baumgartner ◽  
Rosilene L. Delariva
Keyword(s):  
Fish Species ◽  
Resource Partitioning ◽  
Interspecific Variation ◽  
Endemic Fish

scholarly journals Implications of low food availability on resource partitioning among three species of Cichlidae (Pisces: Perciformes) in a Brazilian semi-arid reservoir

2015 ◽  
Vol 27 (1) ◽  
pp. 93-104 ◽  
Author(s):  
Bruno Renaly Souza Figueiredo ◽  
Gabrielle Joanne Medeiros Araujo ◽  
Márcio Joaquim da Silva ◽  
Elvio Sergio Figueredo Medeiros
Keyword(s):  
Food Availability ◽  
Fish Species ◽  
Resource Partitioning ◽  
Food Resource ◽  
Stomach Contents ◽  
Niche Overlap ◽  
Trophic Levels ◽  
Feeding Mode ◽  
Food Items ◽  
Semi Arid

AimResource partitioning has been recognized as a major driver affecting fish communities, with the potential to reduce interespecific competition. This is the result of differences in feeding apparatuses and feeding mode, location of the fish species in the water column and swimming ability, as well as type and size of prey and its availability. The present study surveys a highly limited aquatic system in semi-arid Brazil with regard to habitat and food availability, with very low diversity of fish, and poor in underwater habitat structures and prey, with the objective of understanding resource partitioning among fish species under such conditions.MethodsThree species of Cichlidae (Pisces: Perciformes) were sampled during the dry and wet seasons and had their stomach contents analyzed to evaluate food consumption. The resource partition among fish species was evaluated based on Pianka’s niche overlap index and tested for significance against null models.ResultsIt was observed a low overlap among the study species in food resource use, with individuals tending to specialize to select some food items. This is likely the result of low natural variation in abundance of specific food items associated with fish preferences (both morphological and behavioral).ConclusionsThese results support evidence that, in Brazilian semi-arid aquatic systems, coexistence of fish species seems to be enhanced by the partition of food items at specific trophic levels. Within this context, flow variability would have a key hole in fish coexistence by promoting a high diversity of aquatic habitat elements available for colonization of fish and their prey. Furthermore, food resources available to fish play an important role in this dynamics since prey foods are expected to vary in abundance as the habitat changes.

scholarly journals Trophic resource partitioning of two snook fish species (Centropomidae) in tropical estuaries in Brazil as evidenced by stable isotope analysis

2019 ◽  
Vol 226 ◽  
pp. 106287 ◽  
Author(s):  
Júlio Guazzelli Gonzalez ◽  
Frédéric Ménard ◽  
François Le Loc'h ◽  
Humber Agrelli de Andrade ◽  
Andréa Pontes Viana ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Fish Species ◽  
Stable Isotope Analysis ◽  
Resource Partitioning ◽  
Isotope Analysis ◽  
Tropical Estuaries ◽  
Trophic Resource
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