Abstract
. A marine fish farm (production ~ 100 tonnes per year) located in the Orbetello lagoon area (Tuscany, Italy) was selected to study the waste water quality discharged. The aims of study were: a) quantify the nitrogen and phosphorus discharged from the fish farm at the beginning and the end of feeding time; b) verify nutrient trend during a daily cycle, and difference of release between nitrogen and phosphorus by reared biomass. From June 1999 to May 2000, water temperature, pH, salinity, dissolved oxygen and redox were hourly recorded in output wastewater station (E). Two water sampling strategies were adopted: monthly and daily. Monthly, in E, two field water samples at 8:00 a.m. (E8), at the beginning of feeding, and at 4:00 p.m. (E16), at the end of feeding, were collected. The dissolved and particulate nitrogen and phosphorus were analysed. With respect to total dissolved nitrogen (TDN), the total ammonia (NH3 + NH4+) concentration constituted more than 64%. With respect to total nitrogen and phosphorus, the particulated component represented, respectively, the 16% and 29–36%. A 24 h water sampling, at 4:00, 10:00, 12:00 a.m and at 4:00, 8:00, 12:00 p.m., was carried out. The results showed that TDN was excreted shortly after feeding, with a peak 4 h after the end of feeding. Most of the total dissolved phosphorus (TDP) was excreted after many hours, with a peak 8 h after the end of feeding.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K.I. Aspila H. Agemiam A.S.Y. Chau (1976) ArticleTitleA semiautomated method for the determination of inorganic, organic and total phosphate in sediments Analyst 101 187–197
R. Ballestrazzi D. Lanari E. D’Agaro A. Mion (1994) ArticleTitleThe effect of dietary protein level and source on growth, body composition, total ammonia and reactive phosphate excretion of growing sea-bass (Dicentrarchus labrax, L.) Aquaculture 127 197–206
R. Ballestrazzi D. Lanari E. D’Agaro (1998) ArticleTitlePerformance, nutrient retention efficiency, total ammonia and reactive phosphorus excretion of growing European sea-bass (Dicentrarchus labrax, L.) as affected by diet processing and feeding level Aquaculture 161 55–65 Occurrence Handle10.1016/S0044-8486(97)00256-1 Occurrence Handle1:CAS:528:DyaK1cXivVKgsbo%3D
V. Bombelli M. Lenzi (1996) The Orbetello Lagoon and the Tuscany Coast. Schramm Nienhuis (Eds) Marine Benthic Vegetation Springer-Verlag, Ecological Studies Berlin Heidelberg
C.E. Bower J.P. Bidwell (1978) ArticleTitleIonization of ammonia in sea water effects of temperature, pH, and salinity on Salmo salar L J. Fish. Res. Board Can. 35 1012–1016
R.P. Forster L. Goldstein (1969) Formation of excretory products W.S. Hoar D.J. Randall (Eds) Fish Physiology Academic Press New York
O. Guerin-Ancey (1976) ArticleTitleEtude expérimentale de l’excrétion azoteé du bar (Dicentrarchus labrax, L.) en cours de croissance I. Effects de la temperature et du poids du corps sur l’excrétion. Aquaculture 9 71–80
R.D. Handy M.G. Poxton (1993) ArticleTitleNitrogen pollution in mariculture: toxicity and excretion of nitrogenous compounds by marine fish Review of Fisheries and Biological Fisheries 3 205–241
M. Innamorati I. Ferrari D. Marino M. Ribera D’Alcalà (1990) ArticleTitleMetodi nell’ecologia del plancton marino Nova Thalassia 11 372
M. Lenzi (1992) Experiences for the management of Orbetello Lagoon: eutrophication and fishing Science of the Total Environment (Suppl. 1992) Elsevier Science Publ. Amsterdam
M. Lenzi R. Palmieri S. Porrello (2004) ArticleTitleRestoration of the eutrophic Orbetello lagoon (Tyrrhenian Sea, Italy): water quality management Marine Pollution Bulletin 46 1540–1548
S. Porrello G. Ferrari M. Lenzi E. Persia (2003a) ArticleTitleAmmonia variations in phytotreatment ponds of land-based fish farm wastewater Aquaculture 219 485–494
S. Porrello M. Lenzi P. Tomassetti E. Persia M. G. Finoia I. Mercatali (2003b) ArticleTitleEutrophication by intensive aquaculture using a phytotreatment pond system I. Dissolved and particulate nitrogen and phoshorus. Aquaculture 219 515–529
S. Porrello M. Lenzi E. Persia P. Tomassetti M.G. Finoia I. Mercatali (2003c) ArticleTitleEutrophication by intensive aquaculture using a phytotreatment pond system II. Nitrogen and phosphorus content in pond macroalgae and sediment. Aquaculture 219 531–544
M.G. Poxton S.B. Allouse (1987) ArticleTitleCyclical fluctuations in ammonia and nitrite-nitrogen resulting from the feeding of turbot, Scophthalmus maximus (L.), in recirculating systems Aquaculture Engineering 6 301–22
M.G. Poxton N.J. Lloyd (1989) Fluctuations in ammonia by eel (Anguilla anguilla L.) as a result of feeding strategy N. De Pauw E. Jaspers H. Ackerfors N. Wilkins (Eds) Aquaculture–A Biotechnology in Progress European Aquaculture Society Bredene, Belgium 1125–1135
G. Tchobanoglous E.D. Schroeder (1985) Water Quality Addison Wesley Reading, Mass
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Porrello, S., Lenzi, M., Ferrari, G. et al. Loading of nutrient from a land-based fish farm(Orbetello, Italy) at different times. Aquacult Int 13, 97–108 (2005). https://doi.org/10.1007/s10499-004-9027-1
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s10499-004-9027-1