Ichthyofauna in an ecological station in the Pantanal of Brazil: the hydrological cycle affecting species composition
Última versión Publicado por Museu de Ciències Naturals de Barcelona en 15 de enero de 2021 Museu de Ciències Naturals de Barcelona

This research aims to describe the ichthyological fauna in the area surrounding the Taiamã Ecological Station in the state of Mato Grosso, Brazil. Three expeditions were carried out, in September 2014, February 2015 and May/2015, in seasons ranging from the hydrological conditions of high waters (flood), low waters (drought), and decreasing waters (ebbing). During the research we sampled 3,664 individuals from six orders, 28 families and 78 species. Characiformes was the most abundant order (̴ 81 % of individuals), followed by Siluriformes (̴ 13 % of individuals), and Gymnotiformes (̴ 4 % of individuals). The most representative species were Moenkhausia dichroura (Kner, 1858), Serrapinus calliurus (Boulenger, 1900), Odontostilbe pequira (Steindachner, 1882) and Pimelodella gracilis (Valenciennes, 1840). The dry period showed the highest abundance (1541 individuals), richness (61 species), diversity (H’ = 2.69) and equitability (J’ = 0.65). These results fill a gap concerning species composition in the Pantanal, mainly referring to data available on Conservation Unit, and its surroundings. Moreover, this research provides a database to update the checklist of fish species in a remote wetland, offering a tool for management and conservation.

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Los usuarios deben citar este trabajo de la siguiente manera:

Pains da Silva, H., Barbosa, A. P. D., Silva, L. N. L., Oliveira Jr, E. S., Corrêa, F., Kantek, D. L. Z., Muniz, C. C., 2020. Ichthyofauna in an ecological station in the Pantanal of Brazil: the hydrological cycle affecting species composition. Dataset/Occurrence

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El publicador y propietario de los derechos de este trabajo es Museu de Ciències Naturals de Barcelona. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

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Este recurso ha sido registrado en GBIF con el siguiente UUID: 527885fc-bae8-48fd-8e13-349bb6dae9b8.  Museu de Ciències Naturals de Barcelona publica este recurso, y está registrado en GBIF como un publicador de datos avalado por GBIF Spain.

Palabras Clave

Diversity; Ichthyofauna; Wetland; Conservation Unit; Occurrence

Contactos

¿Quién creó el recurso?:

F. Corrêa
University of the State of Mato Grosso – UNEMAT
78200-000 Nova Xavantina
BR
D. L. Z. Kantek
Taiamã Ecological Station, ICMBio/MT
78200-000 Cáceres
BR
C. C. Muniz
University of the State of Mato Grosso – UNEMAT
78200-000 Cáceres
BR

¿Quién puede resolver dudas acerca del recurso?:

H Pains da Silva
Federal University of Mato Grosso-UFMT
78060-900 Cuiabá
BR
A. P. D. Barbosa
University of the State of Mato Grosso – UNEMAT
78200-000 Cáceres
BR
L. N. L. Silva
University of the State of Mato Grosso – UNEMAT
78200-000 Cáceres
BR
E. S. Oliveira Jr
University of the State of Mato Grosso – UNEMAT
78200-000 Cáceres
BR

¿Quién documentó los metadatos?:

Montse Ferrer
Montse Ferrer
Managing Editor
Arxius de Miscel·lània Zoològica, Museu de Ciències Naturals de Barcelona
Ps Picasso s/n.
08003 Barcelona
Barcelona
ES

¿Quién más está asociado con el recurso?:

Usuario
Montse Ferrer
Managing Editor AMZ
Arxius de Miscel·lània Zoològica, Museu de Ciències Naturals de Barcelona
Ps Picasso s/n
08003 Barcelona
Barcelona
ES
Cobertura Geográfica

The Taiamã Ecological Station (TES) is located in the Pantanal of Mato Grosso (between W 57o 24' and W 45° 40'; and S 16° 48' and S 16° 58'; fig. 1), 165 km t from the municipality of Cáceres. The TES covers an area of 11,550 ha, comprising the islands of Taiamã and Sararé, and limited by a bifurcation of the Paraguay River

Coordenadas límite Latitud Mínima Longitud Mínima [-16,946, -57,594], Latitud Máxima Longitud Máxima [-16,946, -57,594]
Cobertura Taxonómica

No hay descripción disponible

Class  Actinopterygii
Orden  Characiformes,  Cichliformes,  Cyprinodontiformes,  Gymnotiformes,  Siluriformes
Familia  Acestrorhynchidae,  Anostomidae,  Characidae,  Curimatidae,  Erythrinidae,  Hemiodontidae,  Iguanodectidae,  Lebiasinidae,  Parodontidae,  Serrasalmidae,  Triportheidae,  Cichlidae,  Rivulidae,  Gymnotidae,  Hypopomidae,  Rhamphichthyidae,  Sternopygidae,  Doradidae,  Heptapteridae,  Loricariidae,  Pimelodidae
Cobertura Temporal
Fecha Inicial 2014-09-01
Datos del Proyecto

The Pantanal is an extensive plain composed of a series of periodically flooded landscape units (Pozer and Nogueira, 2004), and covering a range of approximately 140,000 km² in the Midwest of Brazil (Da Silva et al., 2001; Lourenço et al., 2008). Within this area, 11,555 ha belong to the Taiamã Ecological Station (TES), delimited by the Paraguay River and containing a variety of aquatic environments. Southwest of the TES is a flood region named Campo. This region is a Conservation Unit and one of the most flooded areas of the Pantanal (Pereira et al., 2012; Castrillon et al., 2011). Fishery activity is now prohibited here (Resolução CEPESCA 02/2018) due to the region´s importance for ichthyofauna as an area for breeding, growth and feeding, and consequent high relevance for the conservation and maintenance of species. It is therefore important to determine the ichthyofauna present in the Conservation Unit in order to create a database of species that have a high probability of occurrence in the Northern Pantanal. Each week, hundreds of tourists explore the abundance of high commercial value fish in the regions near the Conservation Unit from the boat hotels and professional fishermen. Exploration of these resources has a strong impact on fisheries in the region, emphasizing the importance of determining the local biodiversity and aspects related to conservation. Besides the fish of high commercial value, such as Piaractus mesopotamicus (Holmberg, 1887), other smaller, less known species are also found in high abundance, such as Astyanax lacustris (Lütken, 1875). This species is commonly found below the macrophyte beds as a result of the production of detritus and shelter availability (Schiesari et al., 2003), and it is the base of the food chain of many species. The importance of maintaining the base of the food chain reflects the maintenance of larger species (Layman et al., 2015), consequently affecting the ecological process of an environment (Sanders et al., 2014). However, to understand the food chain and the ecological processes, studies comprising checklists are needed to provide information about the species composition and create a robust database that will aid management and conservation of aquatic ecosystems (Corrêa et al., 2015). Studies addressing lists of fish species in the Pantanal are scarce. We highlight the work of Súarez and Petrere (2007); Pains-Silva et al. (2010); Fernandes et al. (2015) in a system of bays connected to the Paraguay River – MT; Teresa et al. (2010) in the drainage system of the Miranda and Aquidauana rivers – MS; Súarez et al. (2013) in Porto Murtinho - MS; and Severo-Neto et al. (2015) in Medal Bay – MS. However, only one work has been conducted in protected areas, that is, the study by Polaz et al. (2014) who conducted research in the Pantanal National Park – MT. This current research describes the fish species in the Taiamã Ecological Station, in the Pantanal of Cáceres, Mato Grosso, Brazil. Furthermore, it provides an accretion of data that fills a gap about the ichthyofauna composition in the northern Pantanal, mainly referring to seasonal hydric variation.

Título Ichthyofauna in an ecological station in the Pantanal of Brazil: the hydrological cycle affecting species composition
Descripción del Área de Estudio The Taiamã Ecological Station (TES) is located in the Pantanal of Mato Grosso (between W 57o 24' and W 45° 40'; and S 16° 48' and S 16° 58'; fig. 1), 165 km t from the municipality of Cáceres. The TES covers an area of 11,550 ha, comprising the islands of Taiamã and Sararé, and limited by a bifurcation of the Paraguay River (Ikeda-Castrillon et al., 2011). The annual average temperature is 26oC, with highest temperatures in the rainy season (October to December) according to Neves et al. (2011). The flood pulse directly influences the area, promoting marked changes in the availability of aquatic habitats. The Pantanal is made up of several phyto physiognomies, such as wet fields, and permanent and temporary bays (Carvalho, 1986; Junk and Da Silva, 2000). The uniform geographical relief denotes a lentic water flow, with periodic flooding due to the flood pulse, which regulates the ecological process in this region (Fernandes et al., 2010). The annual droughts and floods lead to variations in the abundance of certain species (Da Silva et al., 2001; Junk et al. 2014).
Descripción del Diseño We conducted three field excursions, in September 2014, February 2015, and May 2015. These three periods comprise the seasonal hydric periods of low waters (drought), decreasing waters (ebbing), and high waters (flooding). The study was approved by the Instituto Chico Mendes para a conservação da Biodiversidade–SISBIO num 46263-1). Fish samples were collected at three different points surrounding the TES. Fish capture were captured using a square metallic structure (1 m width x 2 m length x 1 m depth) with a 3 mm nylon net that was passed underneath the macrophyte beds three times. Netting of several mesh sizes and a dragging net (5 mm internode, 25 m length and 4 m high) were also passed once in the limnetic region of the water body. After the samples were collected, the fish were anesthetized with Eugenol (Keene et al., 1998; Fernandes et al., 2017) and fixed in formalin (concentration of 10 %) until identification. Fish were identified following Britski et al. (2007) and manuscripts of species description. Specimens were then conserved in 70 % alcohol (and deposited in the Laboratory of Ichthyology of the Northern Pantanal – LIPAN, linked to the Research Centre in Limnology, Biodiversity and Ethnobiology of the Pantanal – CELBE/UNEMAT. Abundance, richness (Taxa S), diversity (Shaanon's index, H’) and equitability (Pielou, J’) were calculated for each season with PAST 3.0 free software (Hammer et al., 2001).

Personas asociadas al proyecto:

Autor
H. Pains da Silva
Métodos de Muestreo

We conducted three field excursions, in September 2014, February 2015, and May 2015. These three periods comprise the seasonal hydric periods of low waters (drought), decreasing waters (ebbing), and high waters (flooding). The study was approved by the Instituto Chico Mendes para a conservação da Biodiversidade–SISBIO num 46263-1).

Área de Estudio The Taiamã Ecological Station (TES) is located in the Pantanal of Mato Grosso (between W 57o 24' and W 45° 40'; and S 16° 48' and S 16° 58'; fig. 1), 165 km t from the municipality of Cáceres. The TES covers an area of 11,550 ha, comprising the islands of Taiamã and Sararé, and limited by a bifurcation of the Paraguay River (Ikeda-Castrillon et al., 2011). The annual average temperature is 26oC, with highest temperatures in the rainy season (October to December) according to Neves et al. (2011). The flood pulse directly influences the area, promoting marked changes in the availability of aquatic habitats. The Pantanal is made up of several phyto physiognomies, such as wet fields, and permanent and temporary bays (Carvalho, 1986; Junk and Da Silva, 2000). The uniform geographical relief denotes a lentic water flow, with periodic flooding due to the flood pulse, which regulates the ecological process in this region (Fernandes et al., 2010). The annual droughts and floods lead to variations in the abundance of certain species (Da Silva et al., 2001; Junk et al. 2014).
Control de Calidad Fish were identified following Britski et al. (2007) and manuscripts of species description. Specimens were then conserved in 70 % alcohol (and deposited in the Laboratory of Ichthyology of the Northern Pantanal – LIPAN, linked to the Research Centre in Limnology, Biodiversity and Ethnobiology of the Pantanal – CELBE/UNEMAT. Abundance, richness (Taxa S), diversity (Shaanon's index, H’) and equitability (Pielou, J’) were calculated for each season with PAST 3.0 free software (Hammer et al., 2001).

Descripción de la metodología paso a paso:

  1. Fish samples were collected at three different points surrounding the TES. Fish capture were captured using a square metallic structure (1 m width x 2 m length x 1 m depth) with a 3 mm nylon net that was passed underneath the macrophyte beds three times. Netting of several mesh sizes and a dragging net (5 mm internode, 25 m length and 4 m high) were also passed once in the limnetic region of the water body. After the samples were collected, the fish were anesthetized with Eugenol (Keene et al., 1998; Fernandes et al., 2017) and fixed in formalin (concentration of 10 %) until identification.
Referencias Bibliográficas
  1. Pains da Silva, H., Barbosa, A. P. D., Silva, L. N. L., Oliveira Jr, E. S., Corrêa, F., Kantek, D. L. Z., Muniz, C. C., 2020. Ichthyofauna in an ecological station in the Pantanal of Brazil: the hydrological cycle affecting species composition. Arxius de Miscel·lània Zoològica, 18: 183-193. https://doi.org/10.32800/amz.2020.18.0183
Metadatos Adicionales
Identificadores Alternativos 10.15470/jjpuuu
https://ipt.gbif.es/resource?r=ichthyofauna_brazil