Temporal range: Middle Eocene–recent
|White sucker, Catostomus commersonii|
The Catostomidae are the suckers of the order Cypriniformes, with about 78 species in this family of freshwater fishes. The Catostomidae are almost exclusively native to North America. The only exceptions are Catostomus catostomus, found in both North America and Russia, and Myxocyprinus asiaticus found only in China. In the Ozarks they are a common food fish and a festival is held each year to celebrate them. The oldest freshwater teleost, the bigmouth buffalo (Ictiobus cyprinellus), belongs to this family.
Description and biology
The mouth of this fish is located on the underside of its head (subterminal), with thick, fleshy lips. Most species are less than 60 cm (2.0 ft) in length, but the largest species (Ictiobus and Myxocyprinus) can surpass 100 cm (3.3 ft). They are distinguished from related fish by having a long pharyngeal bone in the throat, containing a single row of teeth.
Catostomids are most often found in rivers, but can be found in any freshwater environment. Their food ranges from detritus and bottom-dwelling organisms (such as crustaceans and worms), to surface insects, crayfish, small terrestrial vertebrates, and other fish.
They can be taken by many fishing methods, including angling and gigging. Often, species such as Catostomus commersonii and Hypentelium nigricans are preferred for eating. They can be canned, smoked, or fried, but small incisions often must be made in the flesh (termed "scoring") before frying to allow small internal bones to be palatable. Suckers were an important source of food for Indigenous Americans across the continent. Many fishing methods were employed with the most elaborate being stone fish traps constructed on spawning rivers, remnants of these traps can be seen today in Ahjumawi Lava Springs State Park where the Achomawi people trapped Sacramento suckers. In the west these relationships became even more important after the decline in salmon runs due to damming and habitat destruction, some groups of native people relied on seasonal sucker runs for a significant amount of their food until the 1950’s.
In China there is a significant aquaculture industry dedicated to raising Myxocyprinus asiaticus for food. Historically they were an important component of wild fisheries on the Yangtze, but the wild populations are under pressure from pollution, habitat destruction and hydroelectric dam projects.
Some Catostomidae, especially those of Ictiobus and Moxostoma, are the subject of major recreational fisheries while most are the subject of at least limited recreational fisheries. Throughout much of their range species are considered to be rough fish. Suckers have historically been scapegoated for human environmental destruction and its impacts on popular fish species such as pacific salmon and smallmouth bass. This has lead to their widespread and unnecessary destruction at the hands of ignorant anglers.
Subfamilies, tribes, and genera
- Subfamily Catostominae
- Subfamily Cycleptinae
- Genus Cycleptus
- Subfamily Ictiobinae
- Subfamily Myxocyprininae
- Genus Myxocyprinus
- other extinct genera
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- Koga, James S. Chinese high fin banded shark, Cal Poly Pomona, September 2003. Retrieved on 5 May 2019
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- Froese, Rainer, and Daniel Pauly, eds. (2011). "Catostomidae" in FishBase. August 2011 version.
- Bruner, John Clay (1991). "Comments on the genus Amyzon (family Catostomidae)". Journal of Paleontology. 65 (4): 678–686. doi:10.1017/s0022336000030766. JSTOR 1305679.
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