Behavior of Rio Sao Francisco Piranhas in Response to Changes in Space and Density. [PDF]
Zoo BiolABSTRACT Previous observations of Rio Sao Francisco piranhas (Pygocentrus piraya) at Cleveland Metroparks Zoo revealed frequent aggressive interactions, which were associated with the injury and death of some individuals. Fishes are known to increase aggressive behavior when available space is limited.
Oldfield RG +4 more
europepmc +2 more sources
Comparative cytogenetics of Serrasalmidae (Teleostei: Characiformes): The relationship between chromosomal evolution and molecular phylogenies. [PDF]
PLoS One, 2021 Serrasalmidae has high morphological and chromosomal diversity. Based on molecular hypotheses, the family is currently divided into two subfamilies, Colossomatinae and Serrasalminae, with Serrasalminae composed of two tribes: Myleini (comprising most of pacus species) and Serrasalmini (represented byMetynnis,Catoprion, and remaining piranha’s genera ...
Favarato RM +6 more
europepmc +6 more sources
Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling. [PDF]
Mol EcolABSTRACT Artisanal and small‐scale gold mining (ASGM) expansion in the Madre de Dios region of the Peruvian Amazon has transformed primary forests into a novel wetland complex of thousands of abandoned mining ponds. Despite their ecological relevance, post‐mining recovery of these systems remains understudied, particularly regarding fish biodiversity ...
Timana-Mendoza C +7 more
europepmc +2 more sources
Histamine in Brazilian Foods: A Comprehensive Review of Occurrence and Risk Assessment for Intoxication and Intolerance. [PDF]
Food Sci NutrEven though histamine plays an important role in human health, it has been associated with food intoxication and intolerance episodes. The most relevant, current state of knowledge regarding histamine's biochemical and health aspects is provided. Histamine levels are provided for 17 food groups, including 335 food types and 11,437 samples, allowing ...
Gloria MBA +6 more
europepmc +2 more sources
Small fish, large variation: Morphological diversity of Weberian apparatus in Noturus catfishes and ecological implications. [PDF]
Anat Rec (Hoboken)Abstract The Weberian apparatus is a hearing specialization unique to the otophysan fishes, and an unexpected degree of morphological variation exists in species of the Noturus catfishes. Our aim in this study is to investigate relationships between morphological variations and ecology that may drive this variation.
Hoeflich JC, Liu J.
europepmc +2 more sources
Mega-Bites: Extreme jaw forces of living and extinct piranhas (Serrasalmidae) [PDF]
Scientific Reports, 2012 Here, we document in-vivo bite forces recorded from wild piranhas. Integrating this empirical data with allometry, bite simulations, and FEA, we have reconstructed the bite capabilities and potential feeding ecology of the extinct giant Miocene piranha, Megapiranha paranensis. An anterior bite force of 320 N from the black piranha, Serrasalmus rhombeus,
Grubich, Justin R. +4 more
openaire +3 more sources
Hearing capacities and morphology of the auditory system in Serrasalmidae (Teleostei: Otophysi) [PDF]
Scientific Reports, 2018 AbstractLike all otophysan fishes, serrasalmids (piranhas and relatives) possess a Weberian apparatus that improves their hearing capacities. We compared the hearing abilities among eight species of serrasalmids having different life-history traits: herbivorous vs. carnivorous and vocal vs. mute species.
Mélotte, Geoffrey +4 more
openaire +4 more sources
Une nouvelle espèce de Bryconexodon (Pisces, Characidae) décrite du bassin du Trombetas (Para, Brésil) [PDF]
, 1991 Une nouvelle espèce du genre #Bryconexodon$ Géry (#Pisces$, #Characidae$) est décrite du cours supérieur du Rio Trombetas (Para, Brésil). #Bryconexodon$ n. sp. est très voisine de #B.
Dos Santos, G.M. +2 more
core +1 more source
Memorias do Instituto Oswaldo Cruz, 1984 In the present note Phyllodistomum spatula Odhner, 1902 is recorded for the first time from Brazil and in a New host Colossoma macropomum (Cuvier, 1818) (Pisces, serrasalmidae), and Plyllodistomum spatulaeforme Odhner, 1902 is considered its synonym.Na ...
Berenice M. M. Fernandes
doaj +1 more source
Redescription and Geographical Distribution of the Endangered Fish Ossubtus xinguense Jégu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River. [PDF]
PLoS ONE, 2016 The monotypic species Ossubtus xinguense was originally described based on scarce material putatively divided into juveniles and adults. Ossubtus xinguense has a restricted distribution and was previously known only from a few rapids downstream of the ...
Marcelo C Andrade +4 more
doaj +1 more source