Ecosystems

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Eel climbing substrate
December 31, 2019

Eel climbing substrate

Left: Prototype ABS plastic eel climbing ramp under development and testing at CAFRL. New substrate design allows for passage of a wider size range of eels with less need for precise flow regulation. Right: juvenile eel climbing wetted ABS plastic substrate.

USA-NPN Pheno Forecast of emerald ash borer adult emergence.
December 31, 2019

USA-NPN Pheno Forecast of emerald ash borer adult emergence.

USA-NPN Pheno Forecast of emerald ash borer adult emergence. Yellow areas indicate locations that will have reached the accumulated temperature requirements for adult emergence as of April 1, 2019.

Release of radio-tagged silver phase American Eel
December 31, 2019

Release of radio-tagged silver phase American Eel

Radio-tagged silver phase American Eels being released for a CAFRL telemetry study of downstream passage of eels at hydroelectric dams on the Shetucket River, Connecticut.

Eel airlift bypass prototype
December 31, 2019

Eel airlift bypass prototype

Prototype design of an airlift developed at CAFL to transport downstream migrant eels through a bypass pipe and away from turbine intakes. The airlift design passes eels as well as a conventional siphon or gravity pipe.

Eel electrosensitivity test apparatus
December 31, 2019

Eel electrosensitivity test apparatus

Apparatus used to test the sensitivity of eels to low-voltage pulsed DC electric fields. Knowledge of sensitivity of eels to electric fields enables development of behavioral barriers that use electricity to guide eels away from turbine intakes.

Ecosystems science centers and CRU
December 31, 2019

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Map of Ecosystems Science Centers and Cooperative Research Unit locations.  

Attribution: Ecosystems
Grass carp larvae
December 31, 2019

Grass carp larvae

These images show grass carp larvae from the Maumee River. Characteristics of larval grass carp include overall length (left), skeletal muscle development (center) and presence of an eye spot that lacks pigmentation (right; pigment starting to develop on lower eye).

November 1, 2019

UV Screening for Bat White-Nose Syndrome Surveillance —Audio-Described

Long-wave ultraviolet (UV) light can be used to detect orange fluorescence associated with white-nose syndrome (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome-surveillance) on bat skin. White-nose syndrome (WNS) is a highly fatal disease affecting

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November 1, 2019

Environmental Sampling for White-Nose Syndrome Surveillance

Environmental samples collected in or near bat roosting locations can be used to supplement samples collected from bats for surveillance for white-nose syndrome (WNS) (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome). White-nose syndrome is a highly fatal disease

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November 1, 2019

Environmental Sampling for White-Nose Syndrome Surveillance —AD

Audio-described version

Environmental samples collected in or near bat roosting locations can be used to supplement samples collected from bats for surveillance for white-nose syndrome (WNS) (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome). White-nose syndrome

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November 1, 2019

Collecting a skin swab for white-nose syndrome surveillance

This video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance. White-nose syndrome (WNS) (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome) is a highly fatal

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November 1, 2019

Collecting a skin swab for white-nose syndrome surveillance (AD)

This video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance. White-nose syndrome (WNS) (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome) is a highly fatal

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