Freshwater

Fifty-four biologists from nine organizations, including USGS, participated in a two-day Fish Slam event on December 13 - 14, 2023 in Southwest Florida.

Fish Slam events link research institutions such as museums and universities with federal, state, and local government agencies that possess expertise and field equipment to collect nonnative fishes, providing unique access to specimens for these institutions.

Fifty-seven fish biologists from 12 organizations participated in a three-day Fish Chat and Slam event in South Florida.

USGS scientists are working to determine the baseline population numbers of the Razor-backed Musk Turtle.

Forty-two fish biologists from seven organizations participated in a two-day Spring Fish Slam event in southwest Florida. Fourteen species of non-native fishes were collected or observed.

WARC researchers partnered with Gulf Sturgeon decision makers and biologists to develop a Bayesian network model that uses habitat characteristics to predict the quantity of juvenile winter foraging habitat under alternative river discharge and timing of juvenile arrival scenarios.

WARC Researchers are studying carbon, water, and nutrient cycling in upper estuarine wetlands.

Researchers will develop and optimize an eDNA assay to delineate the current distribution of P. inflatus. The assay will then be used to provide up-to-date distributional information and detection rates for P. inflatus in the Pearl River basin.

The U.S. Geological Survey Amphibian Research Monitoring Initiative (ARMI) is using a combination of swabbing, non-lethal tissue sampling, soil and water sampling, and collection of a variety of other environmental variables to determine the relationships between the prevalence and pathogen load of Bd infection and environmental stressors on green treefrog survival.

Estuaries and their surrounding wetlands are coastal transition zones where freshwater rivers meet tidal seawater. As sea levels rise, tidal forces move saltier water farther upstream, extending into freshwater wetland areas. Human changes to the surrounding landscape may amplify the effects of this tidal extension, impacting the resiliency and function of the upper estuarine wetlands. One visible...

Fifty fish biologists from 15 organizations participated in a three-day Fish Chat and Slam event in South Florida on November 5-7, 2019.

In March and June 2019, USGS researchers joined partners in Treasure Coast and Central Florida where they sampled freshwater bodies for non-native fishes. The bi-annual Fish Slam event helps monitor new introductions and document range expansion of known non-native fishes.