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Clear water of Lake Dukka Rybka on the Malaya Dukka River on the slopes of the Arkasar ridge in the North Caucasus on a sunny summer day, Arkhyz, Karachay-Cherkessia, Russia

Female technician sows seeds in hydroponic vegetable seedling greenhouse

A tadpole, nearly finished developing into a brown grass frog, lies on a bed of plants at the bottom of the pond, Rana temporaria

Aquatic plants. Freshwater algae background. Photographer's shadow. Ecological concept. Blur under water.

Wet autumn leaves on ground, nature background, full frame

Salmon run up stream through the ladder at the Ballard locks.

Young woman in casual wear splashing the flowing water to her face in the outdoors.

photo taken in the sector of Folles in the department of haute vienne, in summer. angler. River Gartempe

The Atlantic salmon (Salmo salar) is a species of ray-finned fish in the family Salmonidae. It is found in the northern Atlantic Oceannteils im Atlantischen Ozean

$The Moor Frog has been found in all provinces. Concentrations are present on inland sandy and peaty soils. The moor frog is listed on the Red List as not threatened. It is strictly protected under Dutch legislation, the Bern Convention and the Habitats Directive. The Range of the moor frog decreased by almost 30% since 1950, by loss of habitat due to cultivation of Heath lands and Raised Bogs, combined with intensification of Agriculture (source RAVON).\nThis is a quite small Frog, with pointed Snout. The Male are Bluish during mating time in Spring. The species lives especially in Fen and Marsh Habitats. The spreading is Middle-, East- and North Europe. \n\nThis Frog is most to be seen In Fen and Marsh Habitats in the Netherlands and is far more scarce than the Common Frog (Rana temporaria).$

Forest Waterfall. Crystal Clear Water. Small Stream Forest. Cascade Waterfalls In The Park. Beautiful Nature. Plitvice Lakes National Park.

Crocodile fish in Everglades National Park - Florida (USA)

A selective focus shot of Spotted garden eels underwater

Amphilophus Labiatus red devil and Astronotus ocellatus

an asian chinese female farmer with protective suit spraying on plants in the farm for disinfection

Toxotes chatareus, sometimes known by the common names common archerfish in aquarium tank

An amazing variety of tropical birdlife and tropical wildlife and animals can be found along the banks of the Tarcoles River that feeds into the Pacific Ocean on the west coast of Costa Rica

Exotic pictures of river seaweed as natural backgrounds for graphic projects.

Men biological researcher taking a water sample

Sheer instinct drive the salmon to their breeding grounds. Nothing will stop the urge to move forward. This Salmon has made it this far with brute strength and determination. A moment in flight is captured as this salmon has made it over the rapid waters. Many such as this will make the quest to Valdez, Alaska, completing the circle of life. Loop

Free Images: "bestof:Aquatic biologist releases a threatened goldline darter.jpg en <br/> Image title Aquatic biologist releases a threatened goldline darter Image from Public"

Darter and goldline fishes percina aurolineata endangered aquatic species.jpg

Biologist talk to students on the how to plant aquatic plants.jpg

Oregon silverspot butterfly threatened specie.jpg

Biologist working on field outdoor work.jpg

Aquatic animal mammal underwater manatee.jpg

Biologist works on board with a laptop.jpg

Aquatic environment swamp water landscape.jpg

Aquatic environment with swamp ground.jpg

Palms in water aquatic environment landscape.jpg

Biologist tracking Louisiana black bear.jpg

Aquatic mammals manatee trichechus manatus latirostris.jpg

Biologist holds a newly hatched sea turtle.jpg

Aquatic environments plants water lilies leaves.jpg

Biologist check childrens plants in the schoolyard wetland area.jpg

Biologist talk with students on how to plant.jpg

Cape Thompson biologist at murre plot.jpg

Invasive aquatic plant four leaf clover lily.jpg

Threatened species white orchid blossoms on stem among associated plants.jpg

Biologist in raft during a fish population survey.jpg

Grasses trees and aquatic plants in a wetlands.jpg

Biologist holding a gray bat at a gray bat survey site.jpg

Delta smelt fish on scale threatened fish specie.jpg

Canada lynx kitten being measured by biologist.jpg

Biologist instruct children on how to use tools for planting.jpg

Biologist show students how to place plants in the wetland areas.jpg

The Santa Ana sucker is a threatened fish species.jpg

Lake covered with aquatic vegetation.jpg

Grasses growing in swamp with other aquatic plants.jpg

Endangered moapa dace fish moapa coriacea in an aquatic environment.jpg

Child with net catching aquatic life.jpg

Aquatic invasive plant water hyacinth eichhornia crassipes in full bloom.jpg

View of wetlands aquatic environments vegetation.jpg

Bald cypress trees and some aquatic plants growing at edge of lake.jpg

Children dig their holes for planting aquatic plants and grasses.jpg

Water lilies on the water surface among other aquatic plants and weeds.jpg

Close view of aquatic plants on water surface in prairie wetland.jpg

South Palm Beach - buildings facing beach.jpg

South Palm Beach - sunrise 2004 January.jpg

West Palm Beach station Amtrak train arriving north view.jpg

Beach view north in South Palm Beach Florida 09-03-07.jpg

South Palm Beach - beach north 2004 January.jpg

South Palm Beach - beach north 2004 March.jpg

New Instrument Tests the Metal of WTC Steel (5940503481).jpg