Historical data reveal fish assemblage shifts in an unregulated prairie river
نویسندگان
چکیده
منابع مشابه
Fishing-induced shifts in a Pacific ocean fish assemblage
The US Pacific Coast has been largely free of fishery collapses that have occurred elsewhere, but the situation appears to be changing. Here, we show results from the first systematic study of demersal fishes along the US Pacific Coast. Using data from a quarter-century long, fishery-independent, coast-wide trawl survey, we document fundamental shifts in the demersal fish assemblage along the U...
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The Clean Water Act of 1972 is credited with improving water quality across the USA, although few long-term studies tracking hydrologic, chemical, and biological responses to cleanup efforts exist. The Trinity River of Texas was plagued by poor water quality for more than a century before passage of legislation to reduce point source pollution from the Dallas–Fort Worth (DFW) Metroplex. We trac...
متن کاملFish Assemblage Changes in an Ozark River after Impoundment: A Long-Term Perspective
—We conducted an intensive fish survey in the tailwater reach of a large Ozark river 30 years after its impoundment and compared the recent fish assemblage with those prior to impoundment and shortly (4 years) after impoundment. Our primary objective was to assess whether relatively short-term monitoring following dam construction can adequately quantify the long-term effects of impoundment on ...
متن کاملShifts in a Pacific ocean fish assemblage: the potential influence of exploitation.
As in many regions of the world, marine fishes and invertebrates along the Pacific coast of the United States have long been subjected to overexploitation. Despite this history, however we lack basic information on the current status of many fishes along this coastline. We used data from a quarter century of fishery-independent, coast-wide trawl surveys to study systematically the demersal fish...
متن کاملInvestigating Hydrologic Alteration as a Mechanism of Fish Assemblage Shifts in Urbanizing Streams
Stream biota in urban and suburban settings are thought to be impaired by altered hydrology; however, it is unknown what aspects of the hydrograph alter fish assemblage structure and which fishes are most vulnerable to hydrologic alterations in small streams. We quantified hydrologic variables and fish assemblages in 30 small streams and their subcatchments (area 8–20 km2) in the Etowah River C...
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ژورنال
عنوان ژورنال: Ecosphere
سال: 2015
ISSN: 2150-8925
DOI: 10.1890/es14-00361.1