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Chestnut Lamprey Ichthyomyzon Castaneus

Chestnut Lamprey Ichthyomyzon Castaneus. By: Jocelyn Colon & Eli Brummer Mr. Weidert 3 rd hour . Description .

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Chestnut Lamprey Ichthyomyzon Castaneus

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  1. Chestnut LampreyIchthyomyzonCastaneus By: Jocelyn Colon & Eli Brummer Mr. Weidert 3rd hour

  2. Description • Chestnut colored eel-like fish that have a cartilaginous, boneless skeleton. Adults have well-developed, rasp like oral disc, seven pore like gill openings, no paired fins and a single nostril. Adult length: 10-12 inches; larvae can be 6 inches or more.

  3. The lampreys are primitive eel-like fishes which differ from true fishes in the absence of jaws and paired fins and the presence of gill pockets rather than regular gills. The Chestnut Lamprey has a round, sucking-disk mouth, a keel-like ray less fin along the back and around the tip of the tail. Growing to a length of 14 inches, Chestnut Lampreys are gray to greenish-gray in color with a pale belly

  4. CHESNUT LAMPREY

  5. Chestnut lamprey • Ichthyomyzon- “Sucker fish” in Greek • Castaneus- Having a Chestnut color in Greek • Chestnut lampreys grow about 8-10in long and weigh about 1.1-1.4 oz Like other lampreys, chestnuts live a long time as larvae, they say that they probably live from 5 to 7years.

  6. Where there located/What they eat • The Chestnut Lamprey is currently known to occur occasionally in the lower Kansas River and may occur in the Missouri River main stem. It may have formerly occurred in larger rivers throughout eastern Kansas. These lampreys are parasitic in their adult stage, preying on large fish such as carp and buffalo. Spawning occurs in smaller tributary streams in swift shallow riffles where the gravel is clean. The larvae remain in bottom sediments of pools, feeding on microorganisms, for several years before reaching maturity. 

  7. Food web • Burbot and Brown trout eat chestnut lamprey. Burbot Brown trout

  8. How they reproduce • Chestnut lampreys migrate upstream and into smaller tributary streams to spawn. In Minnesota, spawning takes place in May and June after water temperatures reach 12-13° C (about 55° F). They seek out gravel or sand bottoms in areas of medium current. There the male lampreys remove pebbles with their "sucker" discs to make a large spawning nest. The nest is used by many males and females, who spawn in pairs after attaching themselves with their "suckers" to rocks. Each female may lay anywhere from 20 to 40 eggs in one spawning act. A female will spawn many times over several days until she has deposited all her eggs. A single female may lay 24,000-107,000 depending on her size and health. Gravel displaced by spawning lampreys covers the fertilized eggs. The adults die shortly after they are done spawning.

  9. Recovery plan • Chestnut Lampreys are protected by the Kansas Nongame and Endangered Species Conservation Act and administrative regulations applicable thereto. Any time an eligible project is proposed that will impact the species’ preferred habitats within its probable range, the project sponsor must contact the Ecological Services Section, Kansas Department of Wildlife, Parks and Tourism 512 SE 25th Ave., Pratt, Kansas 67124-8174. Department personnel can then advise the project sponsor on permit requirements.

  10. work cited • http://mdc.mo.gov/discover-nature/field-guide/chestnut-lamprey • http://www.kdwpt.state.ks.us/news/Services/Threatened-and-Endangered-Species/Threatened-and-Endangered-Species/Species-Information/CHESTNUT-LAMPREY

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