![](http://image.absoluteastronomy.com/images//topicimages/m/mo/mooneye.gif)
Mooneye
Encyclopedia
The mooneyes are a family
, the Hiodontidae, of primitive ray-finned fish comprising two living and three extinct species in the genus Hiodon. They are large-eyed, fork-tailed fish that physically resemble shad
s. Their common name comes from the metallic gold or silver shine of their eyes.
The higher classification of the mooneyes is not as yet fully established. Some sources place them in their own Order - Hiodontiformes (as in the treatment here), while others retain them in the order Osteoglossiformes
.
The mooneye (Hiodon tergisus Lesueur
, 1818) is widespread across North America
, living in the clear waters of lakes, ponds, and rivers. It consumes aquatic invertebrate
s, insect
s, and fish
. Mooneyes can reach 47 centimetres (18.5 in) in length.
Mooneyes feed readily on terrestrial insects, and will provide fine sport for an intrepid flyrod angler. They will also take small lures and natural baits with gusto. Mooneyes are frantic, hyperactive fish and their impressive leaps and passionate fighting style has earned them the nickname "Freshwater Tarpon". They are also a main food source for seagulls.
(Hiodon alosoides (Rafinesque, 1819)) is also widespread across North America, and is notable for a conspicuous golden iris
in the eyes. It prefers turbid slower-moving waters of lakes and rivers, where it feeds on insect
s, crustacean
s, fish
, frog
s, shrew
s, and mice
. The fish has been reported up to 52 centimetres (20.5 in) in length. The smoked meat is highly valued and sold as "Winnipeg goldeye".
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
, the Hiodontidae, of primitive ray-finned fish comprising two living and three extinct species in the genus Hiodon. They are large-eyed, fork-tailed fish that physically resemble shad
Shad
The shads or river herrings comprise the genus Alosa, fish related to herring in the family Clupeidae. They are distinct from others in that family by having a deeper body and spawning in rivers. The several species frequent different areas on both sides of the Atlantic Ocean, Mediterranean Sea....
s. Their common name comes from the metallic gold or silver shine of their eyes.
The higher classification of the mooneyes is not as yet fully established. Some sources place them in their own Order - Hiodontiformes (as in the treatment here), while others retain them in the order Osteoglossiformes
Osteoglossiformes
Osteoglossiformes is a relatively primitive order of ray-finned fish that contains two sub-orders, the Osteoglossoidei and the Notopteroidei. All of the living species inhabit freshwater...
.
Hiodon tergisus
![](http://image.absoluteastronomy.com/images/encyclopediaimages/l/la/lake_whitefish,_quetico.jpg)
Charles Alexandre Lesueur
Charles Alexandre Lesueur was a French naturalist, artist and explorer.Pictured here is the oil portrait by Charles Willson Peale of Charles-Alexandre Lesueur...
, 1818) is widespread across North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...
, living in the clear waters of lakes, ponds, and rivers. It consumes aquatic invertebrate
Invertebrate
An invertebrate is an animal without a backbone. The group includes 97% of all animal species – all animals except those in the chordate subphylum Vertebrata .Invertebrates form a paraphyletic group...
s, insect
Insect
Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...
s, and fish
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...
. Mooneyes can reach 47 centimetres (18.5 in) in length.
Mooneyes feed readily on terrestrial insects, and will provide fine sport for an intrepid flyrod angler. They will also take small lures and natural baits with gusto. Mooneyes are frantic, hyperactive fish and their impressive leaps and passionate fighting style has earned them the nickname "Freshwater Tarpon". They are also a main food source for seagulls.
Hiodon alosoides
The goldeyeGoldeye
The goldeye, Hiodon alosoides, is a species of fish in the mooneye family . It occurs from as far down the Mackenzie River as Aklavik in the north to Mississippi in the south, and from Alberta in the west to Ohio south of the Great Lakes, with an isolated population south of James Bay. It is...
(Hiodon alosoides (Rafinesque, 1819)) is also widespread across North America, and is notable for a conspicuous golden iris
Iris (anatomy)
The iris is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupils and thus the amount of light reaching the retina. "Eye color" is the color of the iris, which can be green, blue, or brown. In some cases it can be hazel , grey, violet, or even pink...
in the eyes. It prefers turbid slower-moving waters of lakes and rivers, where it feeds on insect
Insect
Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...
s, crustacean
Crustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...
s, fish
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...
, frog
Frog
Frogs are amphibians in the order Anura , formerly referred to as Salientia . Most frogs are characterized by a short body, webbed digits , protruding eyes and the absence of a tail...
s, shrew
Shrew
A shrew or shrew mouse is a small molelike mammal classified in the order Soricomorpha. True shrews are also not to be confused with West Indies shrews, treeshrews, otter shrews, or elephant shrews, which belong to different families or orders.Although its external appearance is generally that of...
s, and mice
Mouse
A mouse is a small mammal belonging to the order of rodents. The best known mouse species is the common house mouse . It is also a popular pet. In some places, certain kinds of field mice are also common. This rodent is eaten by large birds such as hawks and eagles...
. The fish has been reported up to 52 centimetres (20.5 in) in length. The smoked meat is highly valued and sold as "Winnipeg goldeye".