19 009 Bezplatné fotografie pro Usfws

výzkum voda západní virginie plazi věda rybovití obratlovci zařízení montana ptáci člun

Snowy smiles

Stocking fish-5

rybovití obratlovci colorado

Wyoming toad-3

živočichové plazi

Fish Nutritionist dries and inspects fish food-3

rybovití obratlovci zařízení

Biologists capture a Gulf sturgeon in river-1

zařízení člun

Service employee releases an Indigo bunting

Marine Mammal Stranding Course at NCTC-3

Wyoming toad-3

živočichové plazi

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-4

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-2

Biologist working at Leadville National Fish Hatchery-6

rybovití obratlovci colorado

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Hellbender in hand

severní karolína obojživelník

Field crew outfitted with special gear

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-1

Biologists search for Fountain Darter-4

rybovití obratlovci voda

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-2

Medical instruments used by USFWS fisheries crew-1

rybovití obratlovci věda

Biologists search for Fountain Darter-1

rybovití obratlovci voda

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Fish Nutritionist dries and inspects fish food-1

rybovití obratlovci zařízení

Biologist measures water velocity in a flume-1

rybovití obratlovci člun

NCTC Monarch Coordinator getting monarch butterfly out of net

dobrovolník hmyz

Biologists dip net Gila trout out of tank into buckets

nové mexiko partnerství

Cryogenic tanks for Pallid sturgeon sperm

rybovití obratlovci

Fish Nutritionist checks quality control of fish food

rybovití obratlovci zařízení

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-2

Biologists search for Fountain Darter-2

rybovití obratlovci voda

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Biologists capture a Gulf sturgeon in river

zařízení člun

Checking the mine wall for bats

Wyoming toad-1

Biologists search for Fountain Darter-4

rybovití obratlovci jaro

Service employee behind a mist net

Hatchling Gopher tortoise

živočichové plazi

Biologists walking at Gavins Point National Fish Hatchery

rybovití obratlovci

Biologists release a Gulf sturgeon in river

zařízení člun

Marine Mammal Stranding Course at NCTC

Measuring the wingspan of an Indigo bunting

Aerial view of Selawik National Wildlife Regue-2

klimatické změny aljaška

Northern Long-Eared Bat-4

U.S. Fish and Wildlife Service Employee on Selawik National Wildlife Refuge

Biologists measure each bird

Northern Long-Eared Bat-1

Biology fieldwork-5

rybovití obratlovci západní virginie

Biologists search for Fountain Darter-1

rybovití obratlovci jaro

Red Knot cannon netting-1

dotazník ptáci

Biologist measures water velocity in a flume-3

rybovití obratlovci zařízení

Biologists search for Fountain Darter-3

rybovití obratlovci jaro

živočichové ptáci

Biologist stocks Gila trout in Mineral Creek-3

nové mexiko partnerství

Long-Billed curlew ready for release

Biologist reattaches fish tank to helicopter cable-1

nové mexiko partnerství

Red Knot cannon netting-3

dotazník ptáci

Biologists search for Fountain Darter-1

rybovití obratlovci jaro

Biologist shows front view of Gulf sturgeon in river-1

Traveling to a trap along a frozen river

FWS biologist observes captive Devils Hole pupfish-2

rybovití obratlovci

USFWS Fisheries crew in boat preparing for lake sturgeon field work-7

rybovití obratlovci voda

Marine Mammal Stranding Course at NCTC-5

Wolf collaring-2

Biologists show length of Gulf sturgeon in river-6

zařízení člun

Biologists display spine of Gulf sturgeon in river-2

Netting Gulf sturgeon in river

Biologists search for Fountain Darter-1

rybovití obratlovci jaro

Fish Nutritionist checks quality control of fish food-1

rybovití obratlovci zařízení

Marine Mammal Stranding Course at NCTC-1

Biologists dip net Gila trout out of tank into buckets-1

nové mexiko partnerství

Fish Nutritionist checks quality control of fish food-1

rybovití obratlovci zařízení

Biologists spawning trout-2

rybovití obratlovci colorado

Marine Mammal Stranding Course at NCTC-1

Red Knot cannon netting-1

pobřeží ptáci

Fish tank being lifted by helicopter

Waterfowl banding-1

Eastern small-footed bat-1

Fish Nutritionist checks quality control of fish food-1

rybovití obratlovci zařízení

Biologist spawning trout-2

rybovití obratlovci colorado

Marine Mammal Stranding Course at NCTC-2

Biologists dip net Gila trout out of tank into buckets-4

nové mexiko partnerství

Marine Mammal Stranding Course at NCTC-1

potravina věda

Biologist conducts a swim test on a large Rainbow trout

rybovití obratlovci montana

Biologists tag a hellbender

severní karolína obojživelník

Fish Nutritionist checks quality control of fish food-1

rybovití obratlovci zařízení

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