Distribution of Agonostomus monticola and Brycon behreae in the Río Grande de Térraba, Costa Rica and relations with water flow

Ribeiro, Thiago Cotta; Umaña‐Villalobos, Gerardo

doi:10.1590/s1679-62252010000400014

Cited by 5 publications

(7 citation statements)

References 30 publications

(27 reference statements)

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“…These rivers presented low water turbidity, fast well oxygenated waters that represent important habitat for these fish. High abundance of A. monticola in small streams with similar conditions was previously recorded by Ribeiro & Villalobos (2010). Cruz (1987) observed that terrestrial insects that are potential preys of A. monticola are abundant in these rivulets and it is easier for the fish to capture them in clear and less turbulent waters.…”

Section: Discussionsupporting

confidence: 79%

“…Temporal variation in abundance of small fishes at the end of the rainy season in November for A. monticola and August-November for S. multipunctatum suggest that recruitment could be occurring during these months. Erdman (1977), Cruz (1987), Phillip (1993), Aiken (1998), and Ribeiro and Villalobos (2010) found that peaks of reproduction occur during the rainy season or after the rainy season between May and November in Puerto Rico, Honduras, Trinidad, and Jamaica, with a high abundance of juvenile fish of A. monticola returning to the river a couple of months later having a length of 20 mm (Cruz, 1987;Chicas, 2001;Ribeiro & Villalobos, 2010). This relation between rainfall and spawning in tropical fishes has been previously suggested by Payne (1975) and Lowe-McConnell (1987).…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, the use of telemetry and otolith microchemistry have recently determined that A. monticola behaves as an amphidromous species with eggs and larvae developing in brackish or marine waters and subsequently recruiting, growing, and living as adults mainly in freshwater systems (Smith & Kwak, 2014a, b). Their reproduction has been related with the rainy season (Aiken, 1998;Cruz, 1987;Ditty & Shaw, 1996;Phillip, 1993); however, some authors report that it occurs all year around (Ribeiro & Villalobos, 2010) and juvenile fish having been recorded in estuarine tide pools (Chicas, 2001) and fresh water systems (Matamoros et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Your place, my place…, distribution of Agonostomus monticola and Sicydium multipunctatum in the Acahuapa Watershed

González-Murcia¹,

Álvarez²

2018

Rev.Mex.Biodiv.

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Revista Mexicana de Biodiversidad 89 (2018): 854 -864 Ecology Your place, my place…, distribution of Agonostomus monticola and Sicydium multipunctatum in the Acahuapa Watershed Tu lugar, mi lugar…, distribución de Agonostomus monticola y Sicydium multipunctatum en la cuenca del AcahuapaAbstract Diadromous fish undergo habitat shifts over their life cycles, dwelling between different environments. In the Acahuapa River watershed, the distribution, abundance, and length structure of A. monticola and S. multipunctatum were assessed in its tributary rivers and main channel for 1 year. Fishes were captured using electrofishing devices and nets. Environmental variables, habitat traits, and land use around the sampling points were taken into consideration. A total of 222 A. monticola and 183 S. multipunctatum were recorded during the sampled year. Their distribution was restricted to 8 of the 17 sampling points. Both species co-occurred at 7 of 8 sites, all at elevations between 19 and 325 m asl. Both species were more abundant in lower parts of the watershed and in the tributary rivers than in the main channel. Water temperature, dissolved oxygen, river width and depth, current speed, substrata dominated by rocks and logs, and surroundings of forest and small-scale agriculture favor the presence of these fishes. The smaller individuals of A. monticola occurred at lower elevations of the watershed but fish length differences were not present at the main channel or at the tributaries. For S. multipunctatum, the larger fish were captured also at low elevations and at the main channel of the Acahuapa River watershed. ResumenLos peces diádromos cambian de hábitat durante su ciclo de vida ocupando ambientes diferentes. En la cuenca del río Acahuapa, la distribución, abundancia y estructura de tallas de A. monticola y S. multipunctatum fueron evaluadas en sus ríos tributarios y en el canal principal durante 1 año. Los peces fueron capturados utilizando dispositivos de electropesca y trasmallos. Las variables ambientales, características del hábitat y el uso de suelo en los puntos de muestreo fueron cuantificados. Un total de 222 ejemplares de A. monticola y 183 de S. multipunctatum fueron registrados durante el año de muestreo. Su distribución estuvo restringida a 8 de los 17 sitios de muestreo coincidiendo en 7 de ellos, en alturas entre 19 y 325 m snm. Ambas especies fueron más abundantes en las partes bajas de la cuenca y en los ríos tributarios. La temperatura del agua, oxígeno disuelto, ancho y profundidad del río, velocidad de la corriente y sustrato dominado por rocas, troncos y rodeado por bosque o agricultura a pequeña escala favorecen la presencia de estos peces. Los peces de menor tamaño de A. monticola se encontraron en la parte baja de la cuenca sin importar si este es un río tributario o el canal principal. Peces de S. multipunctatum de mayor tamaño se capturaron S. González-Murcia, F.S. Álvarez / Revista Mexicana de Biodiversidad 89 (2018): 854 -864 855 https://doi.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Your place, my place…, distribution of Agonostomus monticola and Sicydium multipunctatum in the Acahuapa Watershed

González-Murcia¹,

Álvarez²

2018

Rev.Mex.Biodiv.

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“…In fact, the current conditions favor the migration and colonization of species of fish of marine origin. An example of this was the collection of a significant number of individuals from A. monticola (222 individuals), a diadromous fish of great value for local subsistence fishery, considered by some authors as an indicator of well-oxygenated waters and low or moderate disturbance (Cruz, 1987;Ribeiro, Villalobos, 2010). Therefore, the basin contributes to the diet of the local people and represents an important habitat for the local ichthyofauna.…”

Section: Discussionmentioning

confidence: 99%

“…Each species was classified by salinity tolerance criteria and the species origin following Myers (1949a) criteria. For migratory species (sensu lato McDowall, 2008), usually sub divided in anadromous, catadromous and amphidromous (Myers, 1949b;McDowall, 2008;Acolas, Lambert, 2016), we used only the single category: diadromous; considering direct and/or indirect evidence on these species available up to the date (Cruz, 1987;Lyons, 2005;Ribeiro, Villalobos, 2010;Lorion et al, 2011;Smith, Kwak, 2014a, 2014b. Fish from marine derivation, that can be considered marine-stenohaline or marine-eurihaline (Espinosa-Pérez et al, 2011), were grouped in a single category of marine-estuarine species.…”

Section: Methodsmentioning

confidence: 99%

The contribution of environmental factors to fish assemblages in the Río Acahuapa, a small drainage in Central America

Álvarez¹,

Matamoros

Chicas

2017

Neotrop. ichthyol.

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The ichthyofauna of the Río Acahuapa was analyzed sampling 17 sites that included the basin main channel and its tributaries. Fish were collected using dip-nets, seine-nets and electrofishing. Fish standard length and species abundance were recorded. Species origin and salinity tolerance criteria were used to classify fish species. Water physicochemical variables, habitat structure and sampling sites elevation were recorded. A total of 33 fish species were registered, 12.1% are primary, 45.5% are secondary and 42.4% are of marine derivation. Fish species richness declined with increase of elevation (R 2 =0.55, p=0.0006). Two assemblages of fishes were identified: the first one associated to sites of low elevations (19-184 masl), composed mainly of secondary and marine-estuarine fish species related with high temperature, water velocity, river width, dissolved oxygen and low sand and silt substrate cover; the second one associated to sites of middle and higher elevations (185-519 masl), composed by primary and secondary freshwater fishes related with high pH, logs and rocks substrate cover. In summary, elevation and environmental variables contributed to the composition and distribution of fish in the Río Acahuapa.Keywords: Community structure, Fish ecology, Freshwater fish, Habitat structure, Tropical streams.La ictiofauna del Río Acahuapa fue analizada en 17 sitios que incluyen el canal principal de la cuenca y sus tributarios. Los peces fueron recolectados utilizando chinchorros, redes de mano y electropesca. Se registró la longitud estándar y la abundancia por especie. El criterio de origen y tolerancia a la salinidad de las especies fue utilizado para clasificar a los peces. Las variables fisicoquímicas del agua, estructura del hábitat y elevación se registraron en cada sitio. Un total de 33 especies fueron registradas, cuyo 12.1% son primarias, 45.5% secundarias y 42.4% son de derivación marina. La riqueza de especies de peces disminuyó con el aumento de la elevación (R 2 =0.55, p=0.0006). Dos ensamblajes de peces fueron identificados: el primero está asociado con sitios de bajas elevaciones (19-184 msnm), compuesto principalmente de especies de peces secundarias y marino-estuarinas relacionadas con altas temperaturas, velocidad del agua, ancho de río, oxígeno disuelto y baja cobertura de sustrato de arena y limo; el segundo está asociado con sitios de mediana y alta elevación (185-519 msnm), compuesto por peces dulceacuícolas primarios y secundarios relacionados con altos valores de pH y cobertura de sustrato de troncos y rocas. Se determina que la elevación y las variables ambientales contribuyen a la composición y distribución de peces en el Río Acahuapa. Palabras-clave:Arroyos tropicales, Ecología de peces, Estructura comunitária, Estructura del hábitat, Peces de agua dulce.

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To what extent are the fish compositions of a regulated river related to physico-chemical variables and habitat structure?

et al. 2013

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Distribution of Agonostomus monticola and Brycon behreae in the Río Grande de Térraba, Costa Rica and relations with water flow

Cited by 5 publications

References 30 publications

Your place, my place…, distribution of Agonostomus monticola and Sicydium multipunctatum in the Acahuapa Watershed

Your place, my place…, distribution of Agonostomus monticola and Sicydium multipunctatum in the Acahuapa Watershed

The contribution of environmental factors to fish assemblages in the Río Acahuapa, a small drainage in Central America

To what extent are the fish compositions of a regulated river related to physico-chemical variables and habitat structure?

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