examples of bony fish and cartilaginous fish
The mouth of the cartilaginous fish can be found on the underside of the body and the eyes and spiracles occur on the upper side. Around 99% of bony fish are ray-finned fish. External Customers, Sharks, dog fish, electric ray torpedo, skates, etc, Eels, sea horses, flying fish, globe fish, etc. All cartilaginous fish are predators, although the phytoplankton also ingest phytoplankton. In simple terms, a bony fish (Osteichthyes) is one whose skeleton is made of bone, while a cartilaginous fish (Chondrichthyes) has a skeleton made of soft, flexible cartilage. CBD For Tolerance: Signs You May Have A Tolerance To CBD. Osteichthyes excludes the jawless fishes of the class Agnatha (hagfishes and lampreys) and the cartilaginous fishes constituting the class Chondrichthyes (sharks, skates, and rays) but includes the 20,000 species and more than 400 families of modern bony fishes (infraclass Teleostei) of the world, as well as a few primitive forms. Bony fishes (Osteichthyes) fishes Examples: Salmon, Flying fish, Sea horse, Rohu, trout 1. Bony Fish: Bony fish can be found in both fresh and marine water. Almost all are marine, although there are species of sharks and rays that regularly penetrate estuaries and rivers, and, in tropical regions, freshwater species. Performance & security by Cloudflare, Please complete the security check to access. Bony Fish: The exoskeleton of bony fish is made up of thin bony plates known as cycloids. Bony fish can be found in waters all around the world, freshwater and saltwater both, unlike cartilagenous fish who are found only in salt waters. Another striking difference is the gills. Reproduction is also an important factor. Many fish periodically migrate from site to site or from deep water to the surface, both for spawning and feeding. They lack paired fins and are called lamprey and hag fish. Bony Fish: Bony fish belongs to the class Osteichthyes. The following are the main differences between a cartilaginous fish and a bony fish. They are exclusively aquatic. Further, when the swim bladder is filled with gas, it reduces the density of the body of the fish and, when it is emptied, this density is increased. Cartilaginous Fish: The gills of the cartilaginous fish are not covered with an operculum. Cartilaginous Fish vs. Bony Fish, differences between them . While Bony fishes excrete ammonia, cartilaginous fishes excrete Urea as nitrogenous waste. They are also known as elasmobranchii. In cartilaginous fish, it is a cartilage skeleton rather than bones as the name indicates. Bony fish are considered to members of the class Osteichthyes, which is subdivided into two main types of bony fish: The subclass Sarcopterygii is made up of about 25,000 species, all characterized by the presence of enamel on their teeth. They have adapted to live in sometimes difficult conditions, such as lakes at high altitude, polar zones, hydrothermal vents, puddles with high salinity or poor in oxygen, etc. The caudal fin is not symmetric, and the two lobes of the fin are unequal in size. There are 5 to 7-gill slits remain open and visible at all the time, and no operculum covers the gills. 4. Fish are divided into different classes around 400 million years ago. The swim bladder works as a hydrostatic organ, since it produces variations in the relative density of the body, thus regulating the buoyancy and the depth of the fish in water. Bony fish can be found in both marine and fresh water. Bony fish may also have distinct rays, or spines, in their fins. Sunfish, bass, catfish, trout, and pike are examples of bony fish, as are the freshwater tropical fish that you see in aquariums. Most bony fish species are classed as Least Concern by the International Union for Conservation of Nature (IUCN), but there numerous species that are Vulnerable, Near Threatened, or Critically Threatened, such as Metriaclima koningsi of Africa.

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