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Annotated Check List of the Cladocera and Copepoda of Lyon County, Kansas

1959; Southwestern Association of Naturalists; Volume: 4; Issue: 4 Linguagem: Inglês

10.2307/3669410

1943-6262

Carl W. Prophet, Ted F. Andrews, Clyde E. Goulden,

Fish Ecology and Management Studies

Thirty-four species of Cladocera and 18 species of Copepoda were identified in samples taken from 33 cattle ponds, 21 streams, 9 roadside ditches, and 6 sloughs in Lyon County, Kansas, during the period September, 1958, to April, 1959. These species are listed in a check list with annotations of their relative abundance and seasonal occurrence as well as the water temperature and pH ranges of their habitats. Chydorus sphaericus (O.F.M.) was the most frequently collected copepod. Locality data for 4 species of Cladocera and Copepoda not reported previously in Kansas are included. Although a few publications list the Cladocera and Copepoda which are known to occur in certain limited regions or selected habitats of Kansas (Leonard and Ponder 1949, Ratzlaff 1951, and Prophet 1957, 1959), a complete check list of the Cladocera and Copepoda of Kansas has not been published. To one interested in the ecology and distribution of these crustaceans, a check list covering various geographical regions or states is invaluable. However, a check list that would include the Cladocera and Copepoda of an entire state would take many years to prepare. A complete check list of the Kansas species would require many field samples, since there are few recently published records that could serve as a foundation upon which an extensive check list could be built. The present list includes only those species which have been collected in Lyon County, which is a part of the Arkansas River system draining the southern half of Kansas. It is based on 69 separate field collections taken throughout Lyon County by the authors during the period September, 1958, to April, 1959, and upon published and unpublished records of other investigators who have collected and studied the Cladocera and Copepoda of Lyon County during the past ten years (Ratzlaff 1951, Wilhm 1955, and Davies 1958). This list is obviously not complete but rather it is a basis for future studies in Lyon County and for a comprehensive check list of the entire state. It is hoped that the present list will be of value by showing which species are most likely to appear in samples taken from Lyon County and possible patterns of seasonal and habitat occur-