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- 3801
Hydrographic stations and phytoplankton studies in Tyrrhenian Sea (1991-92) - project MUCINUTRI'92
Data set information
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General | |
Data holding centre | Universita' di Firenze, Laboratorio di Ecologia, Dipartimento di Biologia Vegetale |
Country | Italy ![]() |
Time period | From December 1991 to September 1992 |
Ongoing | No |
Geographical area | Two sites located in the Northern Tyrrhenian Sea at (42° 23'N, 11° 05'E) and (42° 20'N, 10° 45'E). Occasionally other sites where mucilage were present, also in the Southern Tyrrhenian Sea |
Observations | |
Parameters | Variable fluorescence parameters; Chlorophyll pigment concentrations in water bodies; Nitrate concentration parameters in the water column; Nitrite concentration parameters in the water column; Salinity of the water column; Phytoplankton taxonomic abundance in water bodies; Density of the water column |
Instruments | Fluorometers; CTD; active fluorometers |
Description | |
Summary | The MUCINUTRI '92 program has two different aims: to follow the temporal evolution of phytoplankton populations and nutrient availability in relation to the vertical mixing of the water column, at a temporal scale narrower than the seasonal and related to the summer occurrence of mucilage in the Tyrrhenian Sea. Two sites were sampled about every ten days at 0, 10, 25, 50, 75 and 100m (a total of about 150 samples) measuring vertical profiles of temperature, salinity, density, dissolved oxygen and pH with a CTD probe and of downwelling, upwelling and scalar PAR quantic irradiance with photoprobe equipped with LICOR sensors. Samples were collected to analyze phytoplankton pigments (Jeffrey and Humphrey, 1975, Biochem. Physiol. Plant. 167: 191-194; Lorenzen, 1967, Limnol. Oceanogr. 12: 343-346) and nutrients (Strickland and Parsons, 1972, Bull. Fish. Res. Bd. Can., 167), yellow substance (Bricaud et al., 1981, Limnol. Oceanogr. 26: 43-53), phytoplankton density (Hasle, 1978, Unesco Monogr. Oceanogr. Methods 6: 88-96) and species composition. When they were present, mucilage have been collected to analyse phytoplankton density and composition, and samples have been incubated with 14C to measure primary production (Riemann and Maller Jensen, 1991, J. Plankt. Res., 13: 853-862) and for autoradiography. Data are arranged in tables of parameters for each cruise, vertical profiles and time series for each station. |
Originators | Universita' di Firenze, Laboratorio di Ecologia, Dipartimento di Biologia Vegetale |
Data web site | http://www.unifi.it/unifi/bioveg/ |
Availability | |
Organisation | Universita' di Firenze, Laboratorio di Ecologia, Dipartimento di Biologia Vegetale |
Availability | By negotiation |
Contact | Mori G. |
Address | Universita' di Firenze, Laboratorio di Ecologia, Dipartimento di Biologia Vegetale |
Administration | |
Collating centre | National Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography |
Local identifier | OGS-EDMED-173 |
Global identifier | 3801 |
Last revised | 1992-10-20 |