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Scientist and biologist hydro-biologist takes water samples for analysis.
A young Asian male with a backpack walks along the bed of a shallow stream in a forest.
scenic river and bridge view, horse, bird
Karlsruhe, Baden-Wuerttemberg.
Man in green shirt and green hat with camouflage shorts sitting by the river bed enjoying nature.
Drone point view of teenage boy and his dad fishing on the river in nature, having fun, dog is near them
amazing nature at Eastern Bohemia, Czech republic
Senior Fly Fisherman on the Vipava river in Primorska,Slovenia,Europe,Nikon D850
Young man on the riverbank with a camera in hand in brazil
Fall Color Foliage Hits Cuyahoga Valley National Park
Family travelling at waterfall in the forest happy together
Rear view of one senior woman walking and looking on the shore at the river against green background.
stream water in the state of Mato Grosso do Sul, Brazil
Camping Life in Beaverkill of New York
Young green grass near a creek with some amount of pebbles on its bottom. Small flow breaks the smooth water surface.
Hiking in nature of Pocono Mountain Region in Pennsylvania. Caucasian mature woman strolling on natural trails
Fisherman with fly-fishing on mountain river. Spring time
Young man using technology in forest for scientific research supporting a sustainable supply chain.
Just some space occupied by the Flint River and shot in Thomaston, Georgia at Sprewell Bluff State Park
Adult man relax walking on sunny summer day in beautiful countryside
ducks in small forest pond in summer day
A teen boy fly-fishing on a pretty little trout stream with his chocolate Labrador retriever puppy.
Clear river with sunlight
Natural setting on the banks of the north adda park in Medolago.
A senior Japanese man fishing in a pristine mountain forest stream.
Woman fly fishing on the river in Finland
Teenager girl exploring wildlife at Cherokee National Forest on the the Oosterneck Creek, near by Cherohala Skyway and Tellico Plains, Great Smoky Mountains, Tennessee, North America, USA.
Nad Tanwia Nature Reserve, The gorge of the Tanew River, Sopot River, Roztoczanski National Park, Beautiful Polish landscapes, tourist trails in Poland
Electrofishing is a common scientific survey method used to sample fish populations to determine abundance, density, and species composition. When performed correctly, electrofishing results in no permanent harm to fish, which return to their natural state in as little as two minutes after being stunned
Stream going through a colorful forest in Merril, Wisconsin, vertical
Free Images: "bestof:Aquatic biologists and stream conservationists who work in the Little Tennessee River basin recently came together on the Oconaluftee River, in Cherokee, North"
Peggy_Shute,_U.S._Fish_and_Wildlife_Service,_examines_a_river_find.jpg
Caleb_Hickman_(EBCI)_unloading_fish.jpg
Jason_Mays_(USFWS)_collecting_fish.jpg
Caleb_Hickman_(EBCI)_collects_sicklefin_redhorses.jpg
Crystal_Ruble_(CFI)_and_Jaclyn_Zelko_attempt_to_collect_eggs.jpg
A_fish_collecting_boat_approaches_Emory_Dam.jpg
Crystal_Ruble_(CFI)_and_Jaclyn_Zelco_(USFWS)_collect_sperm.jpg
Eggs_on_a_rock.jpg
Little_Tennessee_River_at_Fontana_Dam,_North_Carolina.jpg
little-river-smoky-mountains-rock-1252428.jpg
Watauga-River-in-western-North-Carolina.jpg
Mountain-river-with-stones.jpg
water-river-vegetation-green-768769.jpg
smoky-mountains-water-rapids-nature-1274125.jpg
river-smoky-mountains-light-beam-1232443.jpg
River-and-bridge-in-small-village-Germany.jpg
Fontana_Dam,_North_Carolina.jpg
river-water-rock-rocks-element-71637.jpg
boats-teamwork-training-exercise-862010.jpg
nature-waterfall-water-creek-768452.jpg
forest-with-a-slow-moving-stream.jpg
WaterBreakItsNec-k-waterfall.jpg
South of north Hather creek and Innoko river.jpg
Time_Lapse_Stream_in_Park.jpg
landscape-background-seasons-river-84695.jpg
goose-river-summer-bird-animal-1174623.jpg
sealions-astoria-oregon-1136379.jpg
Looking-Glass-Falls.jpg
Musconectcong_River_near_Hughesville_Dam_removal_site.jpg
river-water-rock-rocks-element-71639.jpg
aqua-pond-plant-river-wather-1135272.jpg
plant-river-wather-nature-green-1129619.jpg
beautiful-waterfall-in-forest-autumn-landscape.jpg
Beautiful-waterfall-in-a-city-park.jpg
A-Snow-Covered-Little-Creek-In-Winter.jpg
A-Snow-Covered-Little-Creek-In-Winter.jpg
Waterfall-and-blue-stream-in-the-yellow-forest.jpg
waterfall-that-leads-to-another-amazing-lower-waterfall.jpg
Dry-Falls-in-the-Sun-Lakes-State-Park-Washington.jpg
Women-and-young-village-girls.jpg
Waterfall-in-the-forest-surrounded-by-green-trees-Image-ID75057.jpg
Mountain-Artist-Ridge-Trail-Park-Mount-Baker-Washington.jpg
Mountain-Artist-Ridge-Trail-Park-Mount-Baker-Washington.jpg
Winter_View.jpg
glacier-stream-ice-water-melting-828900.jpg
scenic-great-smoky-mountains-787617.jpg
Sioux_Falls.jpg
Une_petite_roche_à_faire_du_remous.jpg
Panoramic_of_the_dredging_operation_in_preparation_for_the_Hughesville_Dam_removal.jpg
SUNSET_ON_DEER_-_NARA_-_543326.jpg
Trees_And_Sunset_-_NARA_-_543415.jpg
mountains-river-atlantic-ridge.jpg
Zion_NP._Utah..jpg
An aerial shot of stream channelization in the south.jpg
DEER_AT_SUNSET._(FROM_THE_SITES_EXHIBITION._FOR_OTHER_IMAGES_IN_THIS_ASSIGNMENT,_SEE_FICHE_NUMBERS_11,_12,_13,_14..._-_NARA_-_553808.jpg
Point_Arena-Stornetta_unit_of_the_California_Coastal_National_Monument.jpg
Project_365_#53:_220213_A_Bit_Up_And_Down.jpg
Edward_Walsh_-_Queenstown,_Upper_Canada_on_the_Niagara_(a.k.a._Queenston,_Ontario).jpg
1794_Samuel_Dunn_Wall_Map_of_the_World_in_Hemispheres_-_Geographicus_-_World2-dunn-1794.jpg
Mazinaw_Tramway_-_Gilmour_Logging_Built_1850s.jpg
Pieter_Brueghel_the_Elder_-_The_Dutch_Proverbs_-_Google_Art_Project.jpg
Little_Missouri_River_Bridge,_Spanning_Little_Missouri_River_at_CR_179_(NRHP).jpg
Power_shovel_at_work_on_roadway_at_Norris_Dam_site_on_the_Clinch_River._The_steep_hillsides_are_characteristic_of_the_general_topography_of_the_region,_October_1933.jpg
California State Route 126.svg
Group_of_CCC_boys_from_Idaho_just_arrived_in_camp_near_Andersonville,_Tennessee,_October_1933.jpg
General_view_of_CCC_Camp,_TVA_#19,_located_between_the_Clinch_and_Powell_Rivers,_near_New_Tazewell,_Tennessee,_November_1933.jpg
Captain_Welsh_talking_to_the_newly-arrived_replacements_from_New_York_at_CCC_Camp,_TVA_#22,_near_Esco,_Tennessee,_November_1933.jpg
Swine flu infection exponent by county FluTracker June 2009.svg
Swine flu infection exponent by county June 2009.svg
Partial_view_of_CCC_Camp,_TVA_#24,_located_north_of_Clinch_River_and_Big_Sycamore_Creek,_east_of_Lone_Mountain,_Tennessee,_November_1933.jpg
Narva basin map.svg
Zion_National_Park,_Utah._Temple_of_Aeolus,_Virgin_River,_west_fork_(north_fork)_in_the_Mukuntuweap_Brank,_Little_Zion,_upper_part..jpg
Westoe_and_the_foreshore.jpg
Whitburn_Colliery_and_Souter_Lighthouse.jpg
Westoe_and_the_foreshore.jpg
Westoe.jpg
Map of the River Exe - Exe highlighted.svg
Strawberry-plains-bridge-cropped.jpg
Aerial_view_of_Shelby_Street_Bridge_-_01.jpg
An_aerial_view_of_South_Shields,_1949.jpg
sea-otters-otter-animal-1613385.jpg
Lunchtime_at_CCC_Camp,_TVA_#22,_located_on_the_hill_above_Fall_Creek,_south_of_the_Clinch_River,_near_Esco,_Tennessee,_November_1933.jpg
Hidrogalicia ES minno.svg
Issuing_cots_and_blankets_to_new_replacements_just_arrived_from_New_York_at_CCC_Camp,_TVA_#23,_November_1933.jpg
Darío_de_Regoyos_Guadarrama_1885.JPG
James_McDougal_Hart_-_A_Stream_in_the_Adirondacks_-_Walters_37103.jpg
A_glimps_of_Passaic_Falls_and_River,_March_1937.jpg
Intake_diversion_dam._General_view_from_north_abutment_before_removal_of_portions_of_old_dam._-_NARA_-_294576.jpg
Another_view_of_the_issuing_of_equipment_to_the_new_arrivals_at_CCC_Camp,_TVA_#23,_between_Walker's_Ford_and_Lone_Mountain,_Tennessee,_November_1933.jpg
Madison_Silk_Co._Passaic_River_and_old_silk_mill_section,_March_1937.jpg
Blacksmith_and_helper_at_Norris_Dam_site._The_Clinch_River_is_in_the_background,_October_1933.jpg
Tarrant County Texas Incorporated Areas River Oaks highlighted.svg
Great_Lakes_(metric_DE).svg
A_view_of_the_test_drilling_shaft_and_the_shop_at_the_Norris_Dam_site_on_Clinch_River,_October_1933.jpg
Hauling_logs_to_the_river_bank_to_be_sawed._The_trees_were_felled_above_Norris_Dam_site,_October_1933.jpg
Close-up_of_the_scoop_of_the_power_shovel_making_roadway_along_the_river_side_at_Norris_Dam_site,_October_1933.jpg
Informal_group_of_Assistant_Superintendents_and_Foremen_at_the_Norris_Dam_site._In_the_background_is_the_Clinch_River,_November_1933.jpg
Seal of the Speaker of the House of Alabama.svg
Seal_of_the_Alabama_Emergency_Management_Agency.svg
Prince_of_Wales_Blackwall_Frigate.jpg
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