A large scale study on the western basin of lake Come (N. Italy) was starred in 1995 to examine the effects of the zebra mussel colonization which began in early '90. Our results have been related to '91-92 data (pre-Dreissena period), before the maximum colonization of zebra mussel. In spring and summer of the post-Dreissena period fetal phosphorus, P-PO4(4), nitrate and chlorophyll values decreased while ammonium and transparency increased at every sampling station. Zebra mussel does not modify the trophic stale of this sub-basin but it plays an important role in nutrient cycling. The entire population can filter epilimnetic waters 2.1 times per year and can produce 2.9 x 10(4) t/y of pseudofaeces which are transferred to sediments.

Trophic modifications in Lake Como (N. Italy) caused by the zebra mussel (Dreissena polymorpha) / A. Binelli, A. Provini, S. Galassi. - In: WATER AIR AND SOIL POLLUTION. - ISSN 0049-6979. - 99:1-4(1997), pp. 633-640.

Trophic modifications in Lake Como (N. Italy) caused by the zebra mussel (Dreissena polymorpha)

A. Binelli
Primo
;
A. Provini
Secondo
;
S. Galassi
Ultimo
1997

Abstract

A large scale study on the western basin of lake Come (N. Italy) was starred in 1995 to examine the effects of the zebra mussel colonization which began in early '90. Our results have been related to '91-92 data (pre-Dreissena period), before the maximum colonization of zebra mussel. In spring and summer of the post-Dreissena period fetal phosphorus, P-PO4(4), nitrate and chlorophyll values decreased while ammonium and transparency increased at every sampling station. Zebra mussel does not modify the trophic stale of this sub-basin but it plays an important role in nutrient cycling. The entire population can filter epilimnetic waters 2.1 times per year and can produce 2.9 x 10(4) t/y of pseudofaeces which are transferred to sediments.
zebra mussel ; Dreissena polymorpha ; phosphorus ; trophic state ; recovery ; Lake Como
1997
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/39332
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 17
  • ???jsp.display-item.citation.isi??? 14
social impact