Brook Trout Research Paper

If a lake is cut from the ocean and has no large fish as predators (only dragonflies), then the sticklebacks will have a better chance at surviving and reproducing because the sticklebacks will be better adapted to the environment (presence/absence of a pelvic bone) and have little to no predators. The hypothesis was supported. Before the experiment started, background knowledge was collected to better the knowledge of the lakes. Bear Paw Lake is an enclosed lake, meaning no predators could get into the lake.

Salmon play a vital role in the economy, culture, and environment of the Pacific Northwest. They form an important part of Native Alaskan tradition and are a traditional food staple in many communities. Salmon are also the base of one of Alaska’s three primary industries, commercial fishing. Commercial fishing is one of Alaska’s largest industries, the others being the tourism and oil and gas industries. Salmon also have a big impact on the environment, supporting many different types of wildlife.

Extinction of an animal or plant species occurs when there are no more individuals of that species alive anywhere in the world. The species has died out. It is a natural cause of evolution. Although they’re not many species to go extinct in Iowa, the modern day rate of extinctions is quite high. Many of the extinct animals listed people did not know were Iowans.

Bull frogs are mostly seen across the North American continent. The live in freshwater habitats like ponds, swamps, and lakes. Bull frogs prefer warm climates then cold climates. Bull frogs are carnivorous animals, also the bull frog has a that is meat-based. The bull frog hunt mostly insects like larvae, eggs, spiders and ever small fish.

Pargon Fish Description: The Pargon fish is a fierce predator characterized by a long slender shape and a forked caudal fin. Although its scales can be appropriately described as large, iridescent and silvery; sometimes they appear to have a golden cast. This Pargon Fish has a colorful appearance ranging from light to dark shades making this species fascinating to look at. However, fish that live over sandy bottoms seem to have a much lighter appearance. Distinguished by large and sharp protruding teeth, the Tiger Fish’s jaw holds a series of replacement teeth, meant to take the place of any teeth that might be lost or so broken.

River otters have beautiful coats and thus they have been hunted by many people. They mainly eat fish, but they eat many other easily accessible things, like shellfish, crustaceans, mollusks, oysters, birds, rodents, and frogs. Their population is hard to tally, but has been estimated to be over 100,000 based on harvest reports. River otters may be found in all states and territories of the U.S. and Canada. They will only settle into an area amidst concealing structures, generally consisting of foliage or rock piles.

Summer’s Best Event My summer’s best event was going walleye fishing in Canada. Walleye fishing in Canada was summer’s best event because it was a fun-filled experience, it was my first time walleye fishing, and it was my first time to Canada. The most fun thing that I did this summer was going on a vacation to Canada for fishing.

Small birds called brown-headed cowbirds are found all through the North American grasslands and also along the edges of forests. The birds depend on grazing animals to find insects and seeds for their food. The food is then digested and used for energy. The female brown-headed cowbird will lay her eggs in the nest of another bird if she sees eggs in that nest.

Usually killer whales prey on about 30 species of fish. On average, a killer whale eats 227 kilograms (500 lb) each day as it needs lots of food to sustain itself. Killer whales hunt in a very strange way called carousel feeding. They force fish into a tight ball by releasing bursts of bubbles .They then slap the ball with their tail flukes, either stunning or killing up to 15 fish at a time.

From: Mr.Jazayeripour the manager of Mojave Desert community to: The California Environmental Protection Agency Water is one of the necessary sources for organisms to survive in many ways. and did you know that (The United States uses about 346,000 million gallons of fresh water every day. allaboutwater.org-water.facts ) Mojave river, colorado river and underground water are the main sources of water for animals, plants, residential, industrial and agricultural uses. ground-water depletion is primarily causes by sustained groundwater pumping.