However, recent genetic analysis of a preserved (frozen) 'blue walleye' sample suggests that the blue and yellow walleye were simply phenotypes within the same species and do not merit separate taxonomic classification. The walleye is sometimes called the yellow walleye to distinguish it from the blue walleye, which is a color morph that was once found in the southern Ontario and Quebec regions, but is now presumed extinct. It is a North American close relative of the European zander, also known as the pikeperch. Humans for hundreds of years have tried to figure out how eels “do it”.The walleye ( Sander vitreus, synonym Stizostedion vitreum), also called the yellow pike or yellow pikeperch or yellow pickerel, is a freshwater perciform fish native to most of Canada and to the Northern United States. Therefore, their body shape allows freshwater eels to wiggle and swim backward after their prey. The body of the eel is attenuate shaped, starting with a long, slimy body that ends with a powerful tail. The blood of eels contains a toxic protein that can cramp your body muscles, including the heart, leading to sudden death. That’s because the blood of eel is highly poisonous and it could potentially kill you. Have you ever wondered why eel is always served cooked? That’s because eels are known to boost stamina and energy levels, especially some species of eel, including European eels, jellied eels, longfin eels, etc. In Hong Kong, only a kilogram of eels would cost you around 1000 HKD. These cultures identify eels as a popular cuisine and it costs way more expensive. Some cultures such as Japanese, Korean, and Chinese feast on eels. 110 genera, 19 families, and four suborders that we term eels. DiverseĪccording to research, there are approximately 800 species of eel. Below 41°, Eels Go Torporĭuring extreme winters, when the temperature reaches below 41☏ or 5☌, freshwater eel species dip themselves in the mud and enter into a stage, similar to hibernation, known as torpor. They love to dig deeper in the dirt and plants to take full advantage to surprise their prey with occasional attacks. They prefer holes, the bottom layer of your tank, and other hidden places to bury themselves in the substrate. Ardent Swimmersįreshwater eel species are bottom. Also, the dorsal fins and anal of eels are merged with the tail, forming a single strip running along with most of the eels’ length. However, eels differ from fish in a number of ways, including the absence of pelvic fins and lack of pectoral fins in some eels. However, according to their anatomy, they are just an elongated version of fish. It would surprise you, but many years ago, people confused eels with snakes, because of their uncanny resemblance. An Eel is just elongated versions of fish Here are some fun and bizarre facts about freshwater aquarium eels. Among them, the most popular is from the genus Mastacembelidae, classified as spiny eels, such as the tire track eel and fire eel. Very few species of freshwater aquarium eels acquire the aquarium hobby. Unlike other types of eels, Anguillidae freshwater eels have scales on their body and they are a crucial source of food in some parts of the world, especially in Europe where they’re bred on farms at large scales. Around 15 to 20 freshwater species of eels fall into the Anguilla genus, including the very popular American eels, Moray eels, Spaghetti eels, and European eels. True freshwater eels belong to the family Anguillidae and the genus Anguilla. Freshwater eels are catadromous, living their entire lives in freshwater and migrating downstream to spawn in the ocean. The freshwater eels are nocturnal eels, meaning they prey at night with their rather weak eyesight but an incredible sense of smell. In this article, I’ll walk you through the 11 best types of freshwater eels for your aquarium.īut first, let’s discuss some fun facts about freshwater aquarium that you might have missed. If you feel like normal freshwater fish is too mainstream, why don’t you consider keeping freshwater eels as pets?Įels make excellent pets and are a remarkable addition to your home aquariums.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |