2010
DOI: 10.1590/s1679-62252010000400014
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Distribution of Agonostomus monticola and Brycon behreae in the Río Grande de Térraba, Costa Rica and relations with water flow

Abstract: Distribution of Agonostomus monticola and Brycon behreae in the Río Grande de Térraba, Costa Rica and relations with water flowThiago Cotta Ribeiro and Gerardo Umaña VillalobosFish monthly samples were made in three tributaries and in the main stream in order to study population dynamics and the influence of flow on abundance of Agonostomus monticola (Mugilidae) and Brycon behreae (Characidae) in the basin of Térraba River Basin (Costa Rica). Flow was seasonal in these rivers, with peak flow in October. Recrui… Show more

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Cited by 5 publications
(7 citation 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%
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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%
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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%