European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Physical, chemical and biological oceanography off coast of Maremma Natural Park, Italy (N. Tyrrhenian Sea), 1989-92

Data holding centreUniversita' di Firenze - Laboratorio di Ecologia, Dipartimento di Biologia Vegetale
CountryItaly  Italy
Time periodFrom March 1989 to January 1992
OngoingNo
Geographical area

5 stations along the coast of the Parco Naturale della Maremma (Grosseto, northern Tyrrhenian Sea), covering approximately 15 miles from the Ombrone River to the Southern limit of the Park.

Observations 
Parameters

Nitrate concentration parameters in the water column; Nitrite concentration parameters in the water column; Phytoplankton taxonomic abundance in water bodies; Salinity of the water column; Density of the water column; Temperature of the water column

Instruments

Fluorometers; radiometers; discrete water samplers; optical microscopes; spectrophotometers

Description 
Summary

Monthly samples at five stations were taken from March 1989 to January 1992 along the coast of the Parco della Maremma, including the estuarine area in front of the Ombrone River. The main scope was to check the marine coastal ecosystem from the point of view of phytoplanktonic algae, comparing the present data to a previous data set collected in 1975-76. Much attention has been paid to the impact of the Ombrone River, whose plume influences the coast of the Park with its waste water discharge. The data set consists of monthly values of the measured parameters and constitutes a 3 year time series showing the seasonal cycle of phytoplankton and nutrients. Sampling at each station was performed at 0 and 2.5m in two stations, at 0, 2.5 and 5m in another two stations, and at 0, 2.5, 5, 10 and 15m in the last one. Measurements of hydrological parameters (T, O2, S, etc.) and underwater downwelling and upwelling irradiance were performed directly on board by multiparametric probe and light probe. Chlorophyll analysis was carried out by spectrofluorimetric and spectrophotometric methods (Jeffrey and Humphrey, 1975, Biochem. Physiol. Plant. 167: 191-194; Lorenzen, 1967, Limnol. Oceanogr. 12: 343-346). Nutrient analysis (NO2, NO3, PO4, SiOH4, NH3) was carried out according to the methods described by Strickland and Parsons, 1972 (Bull. Fish. Res. Bd. Can., 167).

OriginatorsUniversita' di Firenze - Laboratorio di Ecologia, Dipartimento di Biologia Vegetale
Data web sitehttp://www.unifi.it/unifi/bioveg/
Availability 
OrganisationUniversita' di Firenze - Laboratorio di Ecologia, Dipartimento di Biologia Vegetale
AvailabilityBy negotiation
ContactMori G.
Address

Universita' di Firenze - Laboratorio di Ecologia, Dipartimento di Biologia Vegetale
Via P.A. Michelini 1
Firenze

50121
Italy

Administration 
Collating centreOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Oceanography
Local identifierOGS-EDMED-171
Global identifier3803
Last revised1992-10-20