Larval fish abundance in relation to environmental variables in two Texas Gulf Coast rivers

摘要: ABSTRACTPhenology of fish spawning in lotic ecosystems depends on interactions between species life history strategies and patterns environmental variation related to hydrology seasonality. To further study these relationships, we examined larval abundance relation discharge other variables the Brazos Trinity rivers, Texas. From March 2013 2014, data fishes were collected twice each month using drift nets. Multivariate analyses indicated that, at both sites, water temperature was primary mechanism driving temporal taxonomic assemblage structure family level. However, River, significantly associated with discharge, albeit a lesser degree than temperature. Cyprinid protolarvae dominated catches rivers did not seem be constrained by any aspect flow regime, as evidenced their high througho...