Length–weight relations of fishes (Actinopterygii) from karst streams in the Bodoquena Plateau, western Brazil

Severo-Neto, Francisco; Lopes, Douglas Alves; Ferreira, Anderson; Martínez, Bruno Téllez; Roque, Fábio O.

doi:10.3750/aiep/02500

Cited by 4 publications

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“…This region is a reference for ecotourism in the country since most of the tourist attractions are linked to water resources (Lelis et al 2015). Few studies have been conducted on the ichthyofauna in the Formoso River basin, such as the composition and structure of the ichthyofauna in streams comparing conservation gradients (Casatti et al 2010), the weight-length relationship in stream fishes (Severo-Neto et al 2018) and studies of the ecological interactions of fishes with habitat characteristics (Nunes et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Diet of Moenkhausia bonita (Benine, Castro & Sabino 2004) (Characiformes: Characidae) in streams in the basin of rio Formoso, Brazilian Midwest

Caldatto,

Dias,

Ferreira

2023

Biota Neotrop.

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To characterize the diet composition of Moenkhausia bonita and its temporal and ontogenetic variations in streams in the Formoso River basin (MS). The collections were carried out in seven sampling points in two periods throughout the year (dry and rainy). The food items were analyzed according to the volumetric and occurrence frequency methods and the diet was characterized through the Food Index (IAi%). To determine ontogeny, the specimens were divided into five size classes in the dry (D1 to D5) and rainy (R1 to R5) periods. To verify the difference between the species’ diet between the size classes and the periods of the year, the Permutational Multivariate Analysis of Variance – PERMANOVA analysis was performed. Moenkhausia bonita was classified as an invertivore when it consumed basically both aquatic and terrestrial invertebrates (99.5% of the diet), with higher consumption of aquatic invertebrates. There was a significant difference in the diet of between the dry and rainy periods, and although the species basically consumed the same items in the two studied periods, the proportions were different and there was no difference in the diet between size classes. M. bonita diet is based on autochthonous resources regardless of the size class, but that there were different consumption patterns when comparing the different periods of the year. The present study provided the first information on the feeding of M. bonita in a lotic environment and diet spectrum in the developmental phases, (ontogeny) and periods of the year, enabling a better understanding of the species, the importance of invertebrates in its diet, and the need for future studies on the biology, autoecology, and behavior of this species.

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Section: Introductionmentioning

confidence: 99%

Diet of Moenkhausia bonita (Benine, Castro & Sabino 2004) (Characiformes: Characidae) in streams in the basin of rio Formoso, Brazilian Midwest

Caldatto,

Dias,

Ferreira

2023

Biota Neotrop.

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“…No Brasil, Piabarchus analis ocorre na bacia do rio Paraguai, no estado de Mato Grosso (Veríssimo et al, 2005;Corrêa et al, 2009;2011;de Oliveira et al, 2015) e Mato Grosso do Sul (Casatti et al, 2010;Teresa et al, 2010;Froehlich, 2010;Ferreira et al, 2017;Severo-Neto et al, 2018).…”

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Bruno Francelino de Melo,

Carla Natacha Marcolino Polaz,

Carla Simone Pavanelli

et al. 2024

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Growth parameters ofPoecilia latipinna(Lesueur, 1821) (Actinopterygii, Poeciilidae) – an introduced species in brackish water of Wadi Al-Bahayes (Oman)

Güçlü

Jufaili

Jawad

2021

Oceanological and Hydrobiological Studies

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This work is one of the first studies on the growth of Poecilia latipinna outside its natural habitat. The objective of our study was to investigate the growth parameters of the population of P. latipinna, which is an alien species in Oman (Wadi Al-Bahayes). The population structure of P. latipinna in Wadi Al-Bahayes (Oman; 23°40′47″N; 58°11′36″E) was studied in June and August 2020, using 124 fish. In the course of this study, the number of individuals of each sex, age, weight and size composition were determined. In addition, the total length–weight relationship (LRW) was calculated, as well as the von Bertalanffy growth equation. The mean growth performance (phi prime) and the condition factor were calculated. Males accounted for 37.10% and females for 62.90% of the population. The length–weight relationship and the von Bertalanffy growth equation were W = 0.0214 × L 2.7889 R2 = 0.9212, Lt = 11.46 (1 − e −0.127 (t + 2.71)) for males and Lt = 14.51 (1 − e−0.072 (t + 3.98)) for females. The mean growth performance and the condition factor were calculated as 1.22 for males and 1.18 for females and 1.54 for all specimens. The study shows that the population of the species is characterized by a wide age range. Consequently, monitoring of this alien species is highly recommended.

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Length–weight relations of fishes (Actinopterygii) from karst streams in the Bodoquena Plateau, western Brazil

Abstract: The presently reported study provides the length-weight relations (LWR) for 23 species from headwater streams of the Bodoquena Plateau, which is located on the southern border of the Brazilian Pantanal. The following species were studied Steindachnerina brevipinna

Cited by 4 publications

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Diet of Moenkhausia bonita (Benine, Castro & Sabino 2004) (Characiformes: Characidae) in streams in the basin of rio Formoso, Brazilian Midwest

Diet of Moenkhausia bonita (Benine, Castro & Sabino 2004) (Characiformes: Characidae) in streams in the basin of rio Formoso, Brazilian Midwest

Ficha de Piabarchus analis

Growth parameters ofPoecilia latipinna(Lesueur, 1821) (Actinopterygii, Poeciilidae) – an introduced species in brackish water of Wadi Al-Bahayes (Oman)

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