Morphological variation in Kellicottia longispina
The lengths of the body, the posterior spine and the three longest anterior spines were measured for 25 specimens of Kellicottia longispina from each of the eight lakes distributed from Imikpuk at Point Barrow, Alaska (latitude 71° 15′) to Lake Washington (latitude 47° 38′). Collections were available for more than two dates from six of the lakes. Temperature ranged from 1.2° to 18° C. Mean lengths and ratios were examined in relation to latitude and temperature. Each population differed from the others in some aspect of absolute size, variability, or shape as expressed by the ratios of the dimensions. The population from Point Barrow is similar but not identical to Olofsson’s var. heterospina.
Key wordsZooplankton Rotifera biogeography arctic limnology
Unable to display preview. Download preview PDF.
- Edmondson, W. T., 1963. Pacific Coast and Great Basin, pp. 371–392 in D. G. Frey, ed. Limnology in North America. University of Wisconsin Press.Google Scholar
- Hood, J., 1888. Chats about rotifers (Ertemias tetrathrix). Hardwickes’ Science Gossip. 24: 27–28.Google Scholar
- Hudson, C.T & P. H. Gosse, 1886. The Rotifera; or wheel-animalcules. Longmans, Green & Co. London.Google Scholar
- Kellicott, D. S., 1879. A new rotifer. Am. J. Microsc. Pop. Sci. 4: 19–20.Google Scholar
- Nelson, P. R. & W. T. Edmondson, 1955. Limnological effects of fertilizing Bare Lake, Alaska. U.S. Fish and Wildlife Service, Fish. Bull. 102: 413–436.Google Scholar
- Olofsson, O., 1917. Süsswasser-Entomostraken und Rotatorien von der Murmankuste und aus den nordlichsten Norwegen. Zool. Bidrag Uppsala, 5: 259–294.Google Scholar
- Pejler, B., 1977. On the global distribution of the family Brachionidae (Rotatoria). Arch. Hydrobiol./Suppl. 53. 2: 255–306.Google Scholar
- Turner, P. N., 1987. Some rotifers from Alaska, U.S.A. with a note to researchers. Microscopy 35: 541–548.Google Scholar