3,050 Free Images of Biologist

work of the service fish employees(usfws)wildlife freshwater fish aquatic environment mississippi aquatic plants aquatic animal usfws biologists

Releasing a Red-eyed Vireo

Learning how to measure salinity in a salt marsh

Fishery biologist pilots boat while collecting data on Asian carp-3

Service employees preparing to release Red-eyed Vireo

Service personnel prepare fish pump to load fish onto hatchery-5

equipment michigan

Siphon inserted into gravid female golden riffleshell

equipment science

Largemouth bass being poured through a net-2

equipment science

FWS at Pendills Creek National Fish Hatchery cleaning water intake

equipment water

Biologist operates work boat searching for invasive carp-1

Oyster castles provide habitat for oysters

Fishery biologist pilots boat while collecting data on Asian carp-2

Fishery biologist pilots boat while collecting data on Asian carp-2

Setting a bow-net trap on a shorebird nest.

Cougar capture and collar: Wildlife biologist, Dan Stahler, pressurizing the dart

yellowstone cougar

Plains topminnow

Wildlife biologist with emperor goose at Yukon Delta NWR

field work alaska

Wildlife Biologist on the National Elk Refuge

Iowa darter

Alligator gar-2

Alligator gar-5

FWS employees prepare fish pump to load fish onto hatchery-7

equipment people

Alligator gar-3

Service personnel prepare fish pump to load fish onto hatchery-4

Alligator gar-2

Alligator gar-2

Students surveying freshwater mussels-2

Service employee in raceway

Alligator gar-1

Alligator gar-1

Service employee removes Indigo Bunting from mist net

Alligator gar-1

Spawning equipment and facility

FWS employees prepare fish pump to load fish onto hatchery-1

Alligator gar-3

Alligator gar-2

Alligator gar-3

Alligator gar-1

Alligator gar-1

Alligator gar-3

Alligator gar-1

Alligator gar-2

Alligator gar-3

Spawning equipment-2

Spawning equipment-6

Alligator gar-2

Alligator gar-1

USFWS employees and interns working in the field

volunteer reptiles

Fisheries biologist searching for invasive carp on the Illinois River

Alligator gar-3

Alligator gar-2

Alligator gar-1

PIT tags on the Northern riffleshell

Alligator gar-1

Tagged Monarch and child-1

butterfly animals

Lilian Jane Gould in Linnean Society of London First Formal Admission of Women Fellows (cropped), James Sant, 2 January 1906

first admission of lady fellows to the linnean society of london lilian jane gould

Monarch science

Cougar capture and collar: Dan Stahler, wildlife biologist using telemetry equipment

yellowstone cougar

Monarch science

Cougar capture and collar: Dan Stahler, wildlife biologist using GPS tracker

yellowstone cougar

Monarch science

USFWS Fisheries worker carries life jackets

Engraving a tag into a freshwater mussel shell

Field biology

Alligator gar-1

Alligator gar-1

Gray Catbird-1

Alligator gar-1

Alligator gar-1

Alligator gar-2

Alligator gar-1

Alligator gar-1

Alligator gar-1

Alligator gar-1

Alligator gar-2

Alligator gar-1

Alligator gar-1

Alligator gar-1

Alligator gar-1

Alligator gar-1

Alligator gar-2

Tagged Monarch and child

butterfly animals

Chad Mellison, U.S. Fish and Wildlife Service biologist, holding a Paiute cutthroat trout

conservation california

Checking Tern Exclosures

united states biologist

Ammocoetes (young Pacific lamprey) at Carmel River

Service biologist, Karen Sinclair identifying sex of deceased Western monarch butterfly

Shackleton nimrod 83

historical history

Fisheries biologist searching for invasive carp on the Illinois River-2

Alligator gar-11

Alligator gar-2

Service employee removes Red-eyed Vireo from mist net

Alligator gar-1

Alligator gar-1

FWS biologist holds a purple bankclimber freshwater mussel-3

Service scientist conducts ELISA tests

Alligator gar-1

Refuge biologist talks about Round Lake at Minnesota Valley NWR

landscape hiking

Alligator gar-1

Service scientist at fish health center

Alligator gar-2

FWS at Pendills Creek National Fish Hatchery cleaning water intake-1

2301 - 2400 of 3,050 Next page

/ 31