INTERSITE IV

Name: INTERSITE IV
Start: 1987-10-26
End: 1987-11-11
Location: Northeast Atlantic Ocean (40W)

Type	Oceanographic cruise
Ship	Le Noroit
Ship owner	Ifremer
Dates	26/10/1987 - 11/11/1987
Chief scientist(s)	JOANNY Michel, MARCHAND Michel, COSSA Daniel
	DYNECO-LEBCO LABORATOIRE D'ÉCOLOGIE BENTHIQUE CÔTIÈRE IFREMER Centre de Bretagne ZI Pointe du diable CS 10070 29280 PLOUZANE +33 (0)2 98 22 49 19 Philippe.Cugier@ifremer.fr https://dyneco.ifremer.fr/Qui-sommes-nous/Ecologie-benthique-cotiere-LEBCO
DOI	10.17600/87004511
Objective	Objectives: to have the same and only team perform the routine analytical programme on all RNO monitoring sites. Examining knowledge, in geographical terms, of the monitoring parameters on a continuous strip of about 30 nautical miles along the coast. Thus obtaining a coherent set of data for better overall interpretation of the results collected in the RNO framework. Taking the opportunity of marine research cruises to test the measurement of "new" pollutants.

Sea/Ocean

Northeast Atlantic Ocean (40W)

(SUD ET NORD BRETAGNE)

Ports

Port of departure : Brest (France)

Port of return :

Scientific Authority

DYNECO-DPT DYNAMIQUES DE L'ENVIRONNEMENT COTIER

IFREMER Centre de Bretagne

ZI Pointe du diable

29280 PLOUZANE

+33 (0)2 98.22.43.51

https://dyneco.ifremer.fr/

Participating bodie(s)

IFREMER

Discipline(s)

ENVIRONMENT
BIOLOGICAL OCEANOGRAPHY
MARINE GEOSCIENCES
PHYSICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B71	Particulate organic matter (inc POC	50	JOANNY Michel
G04	Core soft bottom	25 cores	BOUTIER Bernard
H71	Surface measurements underway (T,S)	95	JOANNY Michel
P02	Trace metals	45 stations	COSSA Daniel
P03	Petroleum residues	42 stations	MARCHAND Michel
P04	Chlorinated hydrocarbons	30 stations	MARCHAND Michel

Summary of measurements

-95 hydrology stations, including a profile of 15 levels (4,500 m), 5 profiles from 4 to 5 levels, 50 stations at surface and at bottom.
-Surface stations (one fixed point on a tidal cycle in the Loire River).
-Water samples using hydro winch to measure hydrology and chemistry parameters of natural cycles.
-Water samples taken in Zodiac dinghy using autonomous SEASTAR sampler to measure pollution parameters.
-At different degrees, the following parameters were measured: T, S, suspended matter, turbidity, NO3, NO2, NH4, PO4, Si, Urea, primary dissolved free amino acids, Fluorescence, dissolved and particulate N, C and P, degradable N, C and P, chlorophyll a, b and c.
-25 surface sediment samples taken, 5 of them with the Reineck corer and 20 with the respirometer corer to analyse fine surficial sediment.
-42 neuston net hauls to determine floating petroleum residues.
-Continuous logging with TSG during entire cruise.

Location map

Positionning system

Geodetic system : VALEUR INDEFINIE

Data managed by SISMER

Bibliography

Publications

Aminot Alain, Kerouel Roger (2004). Dissolved organic carbon, nitrogen and phosphorus in the N-E Atlantic and the N-W Mediterranean with particular reference to non-refractory fractions and degradation. Deep Sea Research Part I: Oceanographic Research Papers, 51(12), 1975-1999. Publisher's official version : https://doi.org/10.1016/j.dsr.2004.07.016 , Open Access version : https://archimer.ifremer.fr/doc/00000/472/

Marchand Michel, Caprais Jean-Claude, Pignet Patricia (1988). Hydrocarbons and halogenated hydrocarbons in coastal waters of the western Mediterranean (France). Marine Environmental Research, 25(2), 131-159. https://doi.org/10.1016/0141-1136(88)90008-6

References of Technical Reports

Marchand Michel, Abarnou Alain, Marcaillou-Le Baut Claire (1990). Les polychlorobiphényles (PCB) en milieu marin : biogéochimie et écotoxicologie. Rapports scientifiques et techniques de l’Ifremer n° 18 1990 ISSN 0761-3970. https://archimer.ifremer.fr/doc/00148/25954/