Crayfish

name Infections may persist for 20 years in humans. (CDC) Animals such as pigs, dogs, and a variety of feline species can also harbor P. westermani. (CDC) Human infection with P. westermani occurs by eating inadequately cooked or pickled crab or crayfish that harbor metacercariae of the parasite (CDC) Penetrate through the intestinal wall to peritoneal cavity, then through the abdominal wall and diaphragm into the lungs, where they become encapsulated and develop into adults (CDC) Can also reach…

hand, plants need carbon dioxide and on this experiment the production of carbon dioxide lacked, mainly because Elodea was not allowed to photosynthesize due to the foil covering of the beaker. The Crayfish continued to respire because nothing really interrupted its respiration cycle. Naturally, the Crayfish exhaled carbon dioxide and produced…

The pair of scorpion appendages that appear to be adapted for grasping prey are their chela (claws). The claws have a movable finger and an immovable finger. The movable finger is what clamps down and grasps onto prey. The first pair of legs appear to be extremely long, yet thin, much smaller than the claws that they have. They appear to be the smallest appendages that the scorpion has. The function that they may serve is to help stabilize the scorpion as it is walking around. They might also…

River otters can stay underwater for up to eight minutes and can close their ears and nostrils to keep water out! They can also dive to a depth of 60 feet!The otter is a small mammal that lives both in water and on land. There are 13 known species of otters that inhabit areas around the world Otters have a thick coat of fur which enables the otter to be warm in near freezing waters. There is also a series of thin hairs under the otters fur that help to trap air and keep the otter warm. The river…

(2009) studied the response of native snails to a co-invasion by rusty crayfish (Orconectes rusticus) and Bellamya. Outdoor mesocosms, with water chemistry which mirrored that of Sparkling Lake, Wisconsin, USA, were constructed. Over an 8-week period these mesocosms were randomly subjected to one of four treatments; only native snails, native snails and Bellamya, native snails and crayfish, or native snails with crayfish and Bellamya. The invaders were found to have negative effects on native…

of aquatic invasive species in the great lakes region. Journal of Great Lakes Research, 42(3), 703–707. doi:10.1016/j.jglr.2016.03.016 4 = This reading tells about the lack of research being done to understand the interactions between mussels and crayfish. They explain both positive and negative outcomes that came from invasive mussels in regards to indigenous species food supply. This can help to set the priorities of different management plan to help in the fight to stop invasive species.…

3A) and Clam (Fig. 4B) (r = 0.353 and 0.355, respectively). Additionally, Pb had a positive correlation with Cd in the examined crab (Fig. 3B) (r = 0.315). Furthermore, As had a slight positive correlation with Pb in the crayfish (r = 0.244) (Fig. 4A), and with Cd in the oyster and mussel (r = 0.380 and 0.524) (Fig. 5A, B). Nearly similar findings were reported before between Cd-Hg (Akoto et al., 2014), and Cd-Pb (Darwish et al., 2015). Although the mechanisms behind these…

Tahoe Lobster Company: "Clarity by Cuisine". (n.d.). Retrieved August 27, 2017, from http://tahoelobsterco.wixsite.com/lobster Tahoe Lobster. (n.d.). Retrieved August 27, 2017, from https://travelnevada.com/adventures/32296/tahoe-lobster Signal crayfish. (2017, August 12). Retrieved August 27, 2017, from https://en.wikipedia.org/wiki/Signal_crayfish Hart, J. (n.d.). Ask Joe: How much trash piles up on Tahoe beaches over the 4th of July? Retrieved August 27, 2017, from…

In this article, Mathew Baelor and C. O’Niel Krekorian studied the ability of the Desert Iguana (Dpisosaurus dorsalis) to detect chemical cues of predators via chemoreception. In their experiment, they used the California Kingsnake, which preys on lizards in the wild; therefore, making it an optimal predator stimulus. On the contrary, the researchers used the western shovel-nosed snake, a sympatric species to the California kingsnake, to test the general response of the iguana’s snake chemcials.…

Water quality of the Chippewa River vs. the Grand River Fresh water sources provide incredibly essential resources of biodiversity that aren’t found in abundance anywhere else. Surprisingly perhaps, new species are found with amazing regularity every year in fresh water sources. According to a study done on “Approximately 100 new species of freshwater fishes are described each year, compared with perhaps 2 new bird species” (Allan and Flecker 1993). Among the new species are species that are…