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BURROWING BEHAVIOR OF THE INTRODUCED RED SWAMP CRAYFISH PROCAMBARUS CLARKII (DECAPODA: CAMBARIDAE) IN PORTUGAL

BURROWING BEHAVIOR OF THE INTRODUCED RED SWAMP CRAYFISH PROCAMBARUS CLARKII (DECAPODA:... and The economic value of Procambarus clar- kii (Girard, 1852) has resulted in it being the most widely introduced crayfish species on earth. Unfortunately, damage to agri- cultural fields caused by the burrowing ac- tivity of P. clarkii has made this otherwise valuable crayfish a pest in many countries (Hobbs et al., 1989). In rice-field areas, where the water levels are frequently al- tered, crayfish are obliged to burrow, some- times very deeply into the ground. When the burrowing activity is very intense, a large number of burrows are visible on the sides of levees and dams, often causing their col- lapse. The same may happen to irrigation systems, being particularly detrimental to rice production, since an effective control and regulation of water flow is essential for obtaining good rice yields. The crayfish may also damage the small levees used to main- tain water levels within the adjacent rice paddies, causing the loss of water and in- terfering with the application of herbicides. Maintaining a stable water level is essential to optimize the herbicide exposure to plants (Sommer and Goldman, 1983). Procambarus clarkii is a tertiary burrow- er, since it spends most of its life in open water, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Crustacean Biology Brill

BURROWING BEHAVIOR OF THE INTRODUCED RED SWAMP CRAYFISH PROCAMBARUS CLARKII (DECAPODA: CAMBARIDAE) IN PORTUGAL

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Publisher
Brill
Copyright
Copyright 1995 by Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0278-0372
eISSN
1937-240X
DOI
10.1163/193724095X00262
Publisher site
See Article on Publisher Site

Abstract

and The economic value of Procambarus clar- kii (Girard, 1852) has resulted in it being the most widely introduced crayfish species on earth. Unfortunately, damage to agri- cultural fields caused by the burrowing ac- tivity of P. clarkii has made this otherwise valuable crayfish a pest in many countries (Hobbs et al., 1989). In rice-field areas, where the water levels are frequently al- tered, crayfish are obliged to burrow, some- times very deeply into the ground. When the burrowing activity is very intense, a large number of burrows are visible on the sides of levees and dams, often causing their col- lapse. The same may happen to irrigation systems, being particularly detrimental to rice production, since an effective control and regulation of water flow is essential for obtaining good rice yields. The crayfish may also damage the small levees used to main- tain water levels within the adjacent rice paddies, causing the loss of water and in- terfering with the application of herbicides. Maintaining a stable water level is essential to optimize the herbicide exposure to plants (Sommer and Goldman, 1983). Procambarus clarkii is a tertiary burrow- er, since it spends most of its life in open water,

Journal

Journal of Crustacean BiologyBrill

Published: Jan 1, 1995

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