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Long Term Ecological Research (LTER-Italia) "C1" station


Long-Term Ecological Research (LTER) is an essential component of world wide efforts to better understand ecosystem structure, functioning and response to natural and man-made impacts. Since 1986, the time-series station “C1” in the Gulf of Trieste (GoTTs), in the northernmost part of the Adriatic Sea, represents a crucial site for marine LTER as subject to the interaction among several natural and man-induced forcing factors. The major objectives of the GoTTs are to understand the functioning and to identify changes in the northern Adriatic marine coastal ecosystem.


Since 1986 marine-biological-chemical measurements on a monthly basis.



click on figures to enlarge...



sea sampling at the C1 station



Mnemiopsis leidyi - Sea walnut

Current data - trends

Seawater temperature July 2019 - July 2021
Salinity July 2019 - July 2021
Nitrate concentration (N-NO3)
May 2019 - May 2021
Phosphate concentration (P-PO4)
May 2019 - May 2021
Silicate concentration (H4SiO4)
May 2019 - May 2021
CO2 partial pressure
May 2019 - May 2021
Dissolved oxygen concentration (DO)
July 2019 - July 2021
Chlorophyll α concentration
January 2019 - January 2021
pHT (measured at in situ temperature)
May 2019 - May 2021
Abundance of total prokaryotes
July 2019 - July 2021
Monthly abundance (cell L-1) of
phytoplankton in the surface layer
(January 2019 - April 2021)
and percentage composition of the
April 2021
Monthly abundance (ind L-1) of
microzooplankton in the surface layer
(January 2019 - December 2020)
and percentage composition of the
main microzooplankton groups
in December 2020
Monthly abundance (ind m-3) of mesozooplankton collected by WP-2
vertical hauls (January 2019 - October 2020) and percentage composition
of the main mesozooplankton groups in October 2020


For more informations, please contact: B. Cataletto -- M. Lipizer