Relationship between diet and pharyngeal jaw morphology of Crenicichla species (Cichliformes: Cichlidae) in streams from Uruguay and Jacuí basins, Southern Brazil

Kuhn, Fernanda; Neves, Mayara Pereira; Bonato, Karine Orlandi; Fialho, Clarice Bernhardt

doi:10.1007/s10641-020-00963-y

Cited by 5 publications

(3 citation statements)

References 57 publications

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“…Permutational multivariate analysis of these non-dimensional variables using PERMANOVA with 9,999 permutations and the Bray-Curtis similarity index was applied to determine whether differences between the species exists (Anderson, 2001). To provide a graphical display of the discrimination between species as well as to provide indicate the influence of the characteristics in differentiating the species, the linear discriminant analysis (LDA) (Kuhn et al, 2020;L opez-Fern andez et al, 2014) as implemented using the software PAST4.0 (Hammer et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

Morphology and morphometry of pharyngeal bone and teeth in cyprinid species from the Kurdistan Region, Iraq

Jawad

Agha

Abdullah

et al. 2022

The Anatomical Record

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The morphology of pharyngeal bones and teeth was determined on seven cyprinid species caught from the Greater Zab River, a tributary of Tigris River, located in the northern part of Iraq in the Kurdistan Region. Eleven morphological characters of the pharyngeal bone and teeth were identified, measured and compared from photographs of the 152 individual species collected. The relationship between pharyngeal bone total length and four‐dimensional measurements of the pharyngeal bone were determined using linear regression and multivariate analysis. Results show bone characteristics of the studied species are distinctly different in terms of shape, tooth number, tooth formulae and dimensions of the pharyngeal bones. Regression analysis shows positive coefficients of TL with all parameters PL, DL, PW and DP while multivariate linear discriminate analysis shows distinct groupings of each species using non‐dimensional measurements of the bone characters. The measurements gathered and application of biometric relationships to ease the identification of the cyprinid species contributes to the morphological information on cyprinid species in a data deficient region of the world. This work provides a new set of morphological characters of the pharyngeal bone and teeth of the seven cyprinid species from Northern Mesopotamia that may enable their separation from the members of their cyprinid genera.

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Section: Discussionmentioning

confidence: 99%

Morphology and morphometry of pharyngeal bone and teeth in cyprinid species from the Kurdistan Region, Iraq

Jawad

Agha

Abdullah

et al. 2022

The Anatomical Record

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“…Other small species, mainly belonging to the genera Astyanax , Psalidodon , and Crenicichla , occurred at all sampling sites. These species are generalists with high trophic plasticity, favoring their wide distribution within the basin and in varied habitats ( Pini et al 2019 ; Delariva and Neves 2020 ; Kuhn et al 2020 ). Some Astyanax species were described in the last decades ( Alcaraz et al 2009 ; Garavello and Sampaio 2010 ), but taxonomic relationships and the identity of some of these remains uncertain ( Rossini et al 2016 ), caused by phenotypic plasticity ( Pavanelli and Oliveira 2009 ), which will require full taxonomic review.…”

Section: Discussionmentioning

confidence: 99%

Ichthyofauna in the last free-flowing river of the Lower Iguaçu basin: the importance of tributaries for conservation of endemic species

Pini¹,

Makrakis²,

Neves³

et al. 2021

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The fish fauna from the Lower Iguaçu River and tributaries upstream of the Iguaçu Falls, the last free-flowing river stretch, were investigated. Twenty five sites in tributaries and the main channel were sampled between 2010 and 2016 using several kinds of fishing gear. The species were categorized according to their size, origin, and conservation status. Species richness and abundance in the main channel and tributaries were compared. In total, 87,702 specimens were recorded, comprising 76 species, 25 families, 53 genera, and eight orders. Characiformes and Siluriformes were the richest orders, representing 92% of the total specimens; Characidae, Cichlidae, Pimelodidae, and Loricariidae were the richest families. The fish fauna was composed of small and medium-sized species and included endemic (42%), autochthonous (24%), allochthonous (21%), and exotic (9%) species, as well as hybrids (4%). Significant differences in the relative numerical abundance of species were found among sites. Ancistrus mullerae and Rhamdia branneri (endemic) were indicator species for tributaries inside of Iguaçu National Park (INP), while Phalloceros harpagos (autochthonous) and Ictalurus punctatus (exotic) for tributaries outside of INP and Odontesthes bonariensis (allochthonous) for the main channel. The last dam-free stretch of the Lower Iguaçu River and tributaries upstream the Iguaçu Falls exhibits a rich endemic fish fauna, including some rare, endangered species (Steindachneridion melanodermatum, Gymnogeophagus taroba, and Psalidodon gymnogenys). These findings are essential to predict and understand the effects caused by the new Baixo Iguaçu Hydroelectric Power Plant and highlight the importance of tributaries and Iguaçu National Park for conservation of endemic species.

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“…Instituto Chico Mendes de Conservação da Biodiversidade -ICMBio Processo de Avaliação do Risco de Extinção da Fauna Brasileira Reprodução História Natural Espécie migratória? Não A análise do conteúdo estomacal de exemplares de Crenicichla punctata revelou a presença de conchas de moluscos bivalves, larvas de insetos aquáticos (Kullander & Lucena, 2006) e eglas (Kuhn et al, 2020).…”

Section: Distribuiçãounclassified

Ficha de Crenicichla punctata

André Luiz Netto Ferreira,

Carla Simone Pavanelli,

Fernando Camargo Jerep

et al. 2024

Datasets - Sistema SALVE - ICMBio

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Categoria: Menos Preocupante (LC)Última avaliação: 30/10/2020 (ajustada em 2021) Ano da publicação: 02/01/2024 Crenicichla punctata distribui-se no sistema da laguna dos Patos, no Brasil e no Uruguai. No Brasil, ocorre no estado do Rio Grande do Sul, onde é frequente e relativamente abundante. Como não foram identificadas ameaças significativas que coloquem a sua população em risco no futuro próximo, Crenicichla punctata foi categorizada como Menos Preocupante (LC).

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Relationship between diet and pharyngeal jaw morphology of Crenicichla species (Cichliformes: Cichlidae) in streams from Uruguay and Jacuí basins, Southern Brazil

Cited by 5 publications

References 57 publications

Morphology and morphometry of pharyngeal bone and teeth in cyprinid species from the Kurdistan Region, Iraq

Morphology and morphometry of pharyngeal bone and teeth in cyprinid species from the Kurdistan Region, Iraq

Ichthyofauna in the last free-flowing river of the Lower Iguaçu basin: the importance of tributaries for conservation of endemic species

Ficha de Crenicichla punctata

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