Abstract
Nitrogen and phosphorous exchange at the water–sediment interface is controlled both by complex physico-chemical factors and biological processes. Zoobenthos excretion is one of the most important processes in the mineralization of sedimented organic mater. In polluted freshwaters, tubificid worms are among the dominant components of the benthic community. Rates of ammonium and inorganic phosphate excretion by tubificids were experimentally assessed. They were related to the tubificid abundance in a stream ecosystem polluted with municipal and industrial wastewater. The relationship between these rates and temperature were investigated within the range of 4–23 °C. Relatively constant excretion rates were obtained for both nutrients in the first 8 h of excretion, ranging between 0.076 and 0.226 μg N mg d.w.−1 h−1 and 0.0065–0.01 μg P mg d.w.−1 h−1 , respectively. Q10 values of 2.52 for ammonium and 1.31 for phosphate were calculated. If we presume that all excreta eventually enters the water column, then we can calculate that these invertebrates potentially add 39.17 mg N m−2 day−1 and 0.49 mg P m−2 day−1. These values accounts for 17.16 and 7.56% of the nutrient load in the river water, respectively.
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References
B. Bostrom M. Jansson C. Forsberg (1982) ArticleTitlePhosphorus release from lake sediments Archiv für Hydrobiolgie 18 5–59
J. M. Bremner (1965) Inorganic Forms of Nitrogen C. A. Black (Eds) et al. Methods of Soil Analysis American Society of Argon Inc Madison, WI 1179–1237
J. A. Fernandez F. X. Niell J. Lucerna (1985) ArticleTitleA rapid and sensitive automated determination of phosphate in natural waters Limnology and Oceanography 30 227–230 Occurrence Handle1:CAS:528:DyaL2MXhvFSlt7w%3D Occurrence Handle10.4319/lo.1985.30.1.0227
H. Fukuhara K. Yasuda (1989) ArticleTitleAmmonium excretion by some freshwater zoobenthos from an eutrophic lake Hydrobiologia 173 1–8 Occurrence Handle10.1007/BF00008595
H. Fukuhara M. Sakamoto (1987) ArticleTitleEnhancement of inorganic nitrogen and phosphate release from lake sediment by tubificid worms and chironomid larvae Oikos 48 312–320
H. Fukuhara M. Sakamoto (1988) ArticleTitleEcological significance of bioturbation of zoobenthos community in nitrogen release from bottom sediments in a shallow eutrophic lake Archiv für Hydrobiolgie 113 425–445
H. Fukuhara K. Yasuda (1985) ArticleTitlePhosphorus excretion by some zoobenthos in a eutrophic freshwater lake and its temperature dependency The Japanese Journal of Limnology 46 287–296 Occurrence Handle1:CAS:528:DyaL28XktFWmu7k%3D
W. S. Gardner T. F. Nalepa D. S. Slavenus G. A. Laird (1983) ArticleTitlePatterns and rates of nitrogen release by benthic Chironomidae and Oligochaeta Canadian Journal of Fisheries and Aquatic Sciences 40 259–266 Occurrence Handle1:CAS:528:DyaL3sXhvFGgsLk%3D
A. J. Kempers (1974) ArticleTitleDetermination of sub-microquantities of ammonium and nitrates in soil with phenol, sodium nitroprusside and hipochlorite Geoderma 12 201–206 Occurrence Handle10.1016/0016-7061(74)90068-8 Occurrence Handle1:CAS:528:DyaE2MXosFSksw%3D%3D
T. F. Nalepa W. S. Gardner J. M. Malkzyk (1983) ArticleTitlePhosphorus release by three kinds of benthic invertebrates: effect of substrate and water medium Canadian Journal of Fisheries and Aquatic Sciences 40 810–813 Occurrence Handle1:CAS:528:DyaL3sXksFSlt7o%3D Occurrence Handle10.1139/f83-105
C. L. Prosser (1973) Comparative Animal Physiology EditionNumber3 Saunders Philadelphia
R. V. E. Pym P. J. Miham (1976) ArticleTitleSelectivity of reaction among chlorine, ammonia, and salicylate for determination of ammonia Analytical Chemistry 48 1413–1415 Occurrence Handle10.1021/ac50003a035 Occurrence Handle1:CAS:528:DyaE28XkslWksL8%3D
Rîşnoveanu, G., C. Postolache & A. Vãdineanu, 2001a. Nitrogen and Phosphorous Excretion Rates by Tubificids from the Danube River. In Weber, J., et al. (eds.), Biogeochemical Processes and Cycling of Elements in the Environment. Wroclaw, Poland: 205–206.
Rîşnoveanu, G., C. Popescu, R. Burla & R. Iacob, 2001b. Macroinvertebrates diversity in the lower Danube catchment. Analele Universitatii Bucuresti: 47–50.
G. Rîşnoveanu C. Postolache A. Vãdineanu (2002) ArticleTitleThe role of tubificid communities in phosphorous budget in shallow eutrophic lakes of the Danube Delta International Association Danube Research 34 689–696
G. Rîşnoveanu C. Postolache A. Vãdineanu (2004) ArticleTitleEcological significance of nitrogen cycling by tubificid communities in shallow eutrophic lakes of the Danube Delta Hydrobiologia 524 193–202
D. Schneider (1976) ArticleTitleDetermination of ammonia and Kjeldahl nitrogen by indophenol method Water research 10 31–36
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Postolache, C., Rîşnoveanu, G. & Vădineanu, A. Nitrogen and Phosphorous Excretion Rates by Tubificids from the Prahova River (Romania). Hydrobiologia 553, 121–127 (2006). https://doi.org/10.1007/s10750-005-9896-y
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DOI: https://doi.org/10.1007/s10750-005-9896-y