Crayfish

The purpose of this experiment is to investigate the ionic basis of the neuron’s resting membrane potential (Vm). We examine how this potential is affected by potassium ion [K+] concentration and permeability using Orconectes rusticus crayfish abdominal muscles, and we ask whether or not the Nernst Equation solely based on [K+] can also predict the cell’s resting membrane potential. We predicted that [K+] concentration had a significant influence on the membrane potential and thus the Nernst…

In the same way that humans catch diseases fish can too. Some diseases in this instance comparable to the black plague have had a terrible effect on the salmon population in specific regions. One of the most infamous diseases, the Ulcerative Dermal Necrosis, which is one that effected almost all the salmon in Scotland in the late 1970’s. In attempts to remove the parasite that was killing the fish, Scotland succumbed to loosing all the salmon in nearly over 20 Norwegian rivers. “The parasite,…

USING CRANKBAITS FOR NIGHT WALLEYE By Mark Martin I'd like to share a few of the tips on how to choose and use the proper crankbaits for changing conditions to catch those big walleye at night. Walleye are versatile fish. You can use a wide variety of lures to catch them. My night trolling technique, however , is strictly a crankbait- type of fishing. There are dozens of crankbaits available and each one has its own time and place. CHOOSING AND USING CRANKBAITS 1. Size of lure:…

different from other animals these include their diet, their habitat and their defense meckisiam. Let's explore the platypus’s diet. The platypus spends 12 hours on an average day searching for food. A platypus is a carnivore so their diet consist of crayfish, shrimp and worms. They dig their food out of the river bed with their snout or beak. To carry their prey they use their cheek-pouch to carry their prey back to the surface to eat it. Let's take a closer look at the platypus habitat. The…

The aquatic animal known as the crawfish has become well-known in the scientific community due to its common use in a lab or the natural field. While some of its species are known for their invasiveness and “affect [on the] fundamental aspects of aquatic systems like water quality” (Pearl), the crawfish has provided insight into various fields of science because of its ability to be easily manipulated. This small animal has been utilized by many researchers studying the origins of the animal’s…

the water quality in streams. In the Dug Run study, we collected eleven types of macroinvertebrates from the two different sites within Dug Run. These macroinvertebrates include damselfly nymph, dragonfly nymph, caddisfly larvae, may fly larvae, crayfish, clams, aquatic worms, midge larvae, lymnaeid snails, leeches and flatworms. Table 2 shows the collected macroinvertebrates from the two separate collection sites within Dug Run. Site 1 - Near Confluence with Ottowa River Site 2- UNOH…

the bullfrogs originally are from like three places north America Canada and Mexico. Bullfrogs eat insects, minnows, worms, crayfish, snakes, baby birds, other frogs, small turtles and even small mammals. Bullfrogs eat anything that they can overpower and fit into their mouths. They have power like legs and cow. which their conversation status is least concerned. Also their skin type would be permeable. They usually eat snakes, worms, insects, crustaceans, frogs, tadpoles, and aquatic eggs of…

each year in the United States. Each animal species is selected because researchers believe it serves as an exceptional model of some aspect of human physiology. Some examples of animals that are used for research are crayfish, armadillos, pigs, woodchucks, sheep and squids. The crayfish are used to study muscle functions, while the armadillos are used to study leprosy. Pigs are then used to develop new surgical techniques and to study influenza. Since sheep’s share anatomic similarities…

Married women are expected to share their harvested products and the crayfish, frogs. And insects with her husband and children. The head of every Kapauku family plant two gardens every eight months. Surprisingly, women are in charge of planting crops too. Women are tabooed from eating Apuu, a type of yam. It’s a man’s responsibility…

Have you ever wondered what are the similarities and differences between an alligator snapping turtle and an american alligator? They have similar diets,traits,and a habitat crave for freshwater. Although, there also many differences between the two. For example, both reptiles have a way of protecting themselves, but each animal has a different trait that does just that.…