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The ray-finned fishes (actinopterygians) are the largest group of living fishes and compose half of the living vertebrates. There are around 42 orders, 431 families and nearly 24,000 species. Almost all fish that you see belong to this class of fish.The ray-finned fishes include some of the most well-known fish, including tuna, cod, lionfish, and even seahorses.It was thought that the genome duplication might accelerate the rate at which the group could modify existing traits and evolve new features, giving them access to new environments or lifestyles. In other words, there was something inherently special about teleosts that gave them remarkable abilities to diversify.
Which one is an example of a ray-finned fish?
The ray-finned fishes include some of the most well-known fish, including tuna, cod, lionfish, and even seahorses.
Why are ray-finned fish diverse?
It was thought that the genome duplication might accelerate the rate at which the group could modify existing traits and evolve new features, giving them access to new environments or lifestyles. In other words, there was something inherently special about teleosts that gave them remarkable abilities to diversify.
The Incredible Diversity of Bony Fish
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Which fish Group is the most diverse?
‘ Bony fishes are the most diverse of all groups of fishes and are also the most diverse group of vertebrates alive today, with approximately 29,000 living species. Bony fishes include two subgroups—the ray-finned fishes and the lobe-finned fishes.
Are salmon ray-finned fish?
Salmon are ray-finned fish in the family of salmonidae.
Where are ray-finned fish found?
Ray-finned fishes are the dominant aquatic vertebrates today, making up about half of all vertebrate species known. They are found in every aquatic habitat from the abyssal depths of the ocean to freshwater streams and ponds; a few can even crawl on land for short periods of time.
What is Ray fin?
Ray-fins and lobe-fins (Sarcopterygii) are the two known lineages of bony fishes (Osteichthyes). They share a number of important features including the possession of a swim bladder (or lung) and paired pectoral (shoulder) and pelvic fins. One important difference between these groups is found in these paired fins.
How many species of ray-finned fish are there?
Diversity and Lower Taxonomy: The subclass Actinopterygii comprises some 27,000 species of ray-finned bony fishes, making it the largest radiation of any vertebrate group.
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Ray-finned Fishes
Within this clade is theAtherinomorpha (guppies, killifishes and relatives), and the Percomorpha – by far the most diverse group of fish, containing over one- …
Kids’ Inquiry of Diverse Species, Actinopterygii, ray-finned fishes
ray-finned fishes … Fish are vertebrates that live in the water. Fish are the most diverse group of vertebrates, with more species than any other vertebrate …
Actinopterygii – Wikipedia
Actinopterygii members of which are known as ray-finned fishes, is a clade (traditionally class or subclass) of the bony fishes. They comprise over 50% of …
Actinopterygiiray-finned fishes – Animal Diversity Web
Ray-finned fishes inhabit a variety of extreme environments. · Disparate localities may have similar geographic conditions, yet fish species composition varies …
What are characteristics of ray-finned fishes?
The anatomy of ray-finned fish shows many of the characteristics common to all chordates: pharyngeal slits, a nerve cord, and body wall muscles arranged in myotomes, or segmented blocks. Ray-finned fish also have several unique anatomical features that suggest adaptation for an aquatic lifestyle.
What is a group of fish called?
When fish, shrimp or other aquatic creatures swim together in a loose cluster, this is typically called a shoal. It can be a mix of different species. A school is a group of the same fish species swimming together in synchrony; turning, twisting and forming sweeping, glinting shapes in the water.
Understanding Ray Finned Fishes – Jake Atterby and Struan Henderson – University of Birmingham
Images related to the topicUnderstanding Ray Finned Fishes – Jake Atterby and Struan Henderson – University of Birmingham
What are the groups of fish?
Nelson, among others. Fishes are typically divided into three groups: superclass Agnatha (jawless fishes), class Chondrichthyes (cartilaginous fishes), and superclass Osteichthyes (bony fishes). The latter two groups are included within the infraphylum Gnathostomata, a category containing all jawed vertebrates.
What are the 4 groups of fish?
Fish form the largest group of vertebrates. There are Four Classes of fish that we lump together though they are only distantly related to each other. The four groups of fishes are: Jawless Fishes (2 classes), Cartilaginous Fishes, and Bony Fishes. Jawless fish have round mouths.
Is Carp a ray-finned fish?
Among the 46 groups (order) of ray-finned fishes are the mullets, puffers and filefishes, flatfishes, perch-like fishes, scorpion fishes and flatheads, spiny eels, pipefishes and seahorses, dories, whale fishes, needlefish, silversides, anglerfishes, cods, trout, salmon, pikes, catfish, carps, herrings, eels and morays …
Are perch ray-finned or lobe-finned fish?
The perch is an example of a ray-finned fish. Its fins have spiny rays of cartilage &/or bone to support them. Fins help the perch to move quickly through the water and steer without rolling. The perch also has a streamline body shape that makes it well adapted for movement in the water.
Are sharks Actinopterygii?
Abstract. Actinopterygii (ray-finned fishes) and Elasmobranchii (sharks, skates and rays) represent more than half of today’s vertebrate taxic diversity (approximately 33000 species) and form the largest component of vertebrate diversity in extant aquatic ecosystems.
Which group has bones in the fins?
…
Osteichthyes.
| Osteichthyes Temporal range: Late Silurian–Present, | |
|---|---|
| Clade: | Teleostomi |
| Superclass: | Osteichthyes Huxley, 1880 |
| Groups included |
What is the meaning of ray-finned fishes?
noun. any of various bony fishes of the subclass Actinopterygii, having strong slender rays, excluding the coelacanth and lungfish.
Catfishes
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What is the most diverse clade of vertebrata in terms of number of species?
The most diverse clade of vertebrate in terms of number of species is Actinopterygii (ray-fined fish).
Are ray-finned fishes jawed vertebrates?
The jawed vertebrates (gnathostomes) fall into two major taxa, the Chondrichthyes (cartilaginous fishes) and Osteichthyes (bony fishes). The latter taxon includes sarcopterygians (coelacanths, lungfishes, and tetrapods) and actinopterygians (ray-finned fishes).
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