? Bonneville cutthroat trout
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Salmoniformes Family: Salmonidae Genus: Oncorhynchus Species: O. clarki Subspecies: O. c. utah
Trinomial name
Oncorhynchus clarki utah (Suckley, 1874)

The Bonneville cutthroat trout (Oncorhynchus clarki utah) is a subspecies of Cutthroat trout that once inhabited the Late Pleistocene-aged Lake Bonneville of Utah, eastern Nevada, and Southern Idaho (USA). Since the drainage of that lake, the fish has been evolutionarily isolated in small populations in the headwaters of cool mountain streams and lakes of the Bonneville Drainage basin. The isolation has resulted in much phenotypic variation among populations. This species is one of 14 recognized subspecies of Cutthroat trout native to the western United States. Image File history File links Bonneville_cutthroat. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla Subregnum Parazoa Porifera (sponges) Subregnum Agnotozoa Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders See text The Actinopterygii are the ray-finned fish. ... Genera (see text) Salmonidae is a family of ray-finned fish, the only family of order Salmoniformes. ... Genera (see text) Salmonidae is a family of ray-finned fish, the only family of order Salmoniformes. ... Species See text. ... Binomial name Oncorhynchus clarki (Richardson, 1836) Subspecies See text. ... Trinomial nomenclature is a taxonomic naming system that extends the standard system of binomial nomenclature by adding a third taxon. ... George Suckley (1830-1869) was an American physician and naturalist notable as an explorer of the Washington and Oregon territories in the 1850s, and describer of several new fish species. ... In zoology, as in other branches of biology, subspecies is the rank immediately subordinate to a species. ... Binomial name Oncorhynchus clarki (Richardson, 1836) Subspecies See text. ... The Pleistocene epoch (pronounced like ply-stow-seen) is part of the geologic timescale. ... A butte in the Great Salt Lake Desert Lake Bonneville was a prehistoric pluvial lake that covered much of North Americas Great Basin region. ... Official language(s) English Capital Largest city Salt Lake City Salt Lake City Area  Ranked 13th  - Total 84,876 sq. ... Official language(s) None Capital Largest city Carson City Las Vegas Area  - Total   - Width   - Length    - % water  - Latitude  - Longitude Ranked 7th 110,567 sq mi  286,367 km² 322 miles  519 km 490 miles  788 km 0. ... Official language(s) None Capital Largest city Boise Boise Area  Ranked 14th  - Total 83,642 sq. ... A speculative phylogenetic tree of all living things, based on rRNA gene data, showing the separation of the three domains, bacteria, archaea and eukaryotes. ... The phenotype of an individual organism is either its total physical appearance and constitution or a specific manifestation of a trait, such as size, eye color, or behavior that varies between individuals. ... In zoology, as in other branches of biology, subspecies is the rank immediately subordinate to a species. ...

This fish has sparsely scattered, very distinct round spots over its upper body. They are clothed in subdued colors of silver-gray to charcoal, the upper body having subtle hues of pink on the flanks during spawning. These fish, particularly the Bear Lake strain, often lack the bright crimson jaw slash that, at times, may be yellow. Categories: US geography stubs | Lakes of Idaho | Lakes of Utah | Great Basin ...

The differences between the Bonneville cutthroat trout and the rainbow trout are the basibranchial (hyoid) teeth in their throat between the gill arches. They also typically have longer heads and jaws than the rainbow and often times can be distinguished from the rainbow by their larger spots. Binomial name Oncorhynchus mykiss Walbaum, 1792 The rainbow trout (Oncorhynchus mykiss, formerly Salmo iridia) is a single species of trout native to the Pacific Ocean and in North American rivers and lakes west of the Rocky Mountains. ... gills of a Smooth Newt Gills inside of a tuna head In aquatic organisms, gills are a respiratory organ for the extraction of oxygen from water and for the excretion of carbon dioxide. ...

Bonneville cutthroat trout primarily eat insects, but large individuals also eat other fish. They spawn near the mouths of streams over gravel substrate in the springtime, having an incubation period of 24 to 25 days. Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ...

The Bonneville cutthroat is known to be more vulnerable to anglers because of a general lack of wariness and can be caught on a wide variety of bait. As the only native salmonid of the inland west, cutthroat trout suffered intense fishing pressure for commerce and sustenance from the 1850's through the 1920's. At one time they were so numerous they were considered a nuisance, but today they are on the Utah Sensitive Species List. They are threatened by predation and competition by non-native fish, hybridization with non-native fish (in particular the rainbow trout) and loss of habitat.

The Bonneville cutthroat has recently been designated the official fish of the State of Utah. It was important to the Indians and the Mormon pioneers as a source of food. Most of the fish's current and historic range is in Utah, but they are also found in Idaho, Wyoming, and Nevada. For other uses, see Mormon (disambiguation). ...

References

• The Bonneville cutthroat trout
• State of Utah Division of Wildlife Resources
• From the Utah Division of Wildlife Resources "Utah fish species".