GUIDOME 76 (UPWELLING 76)

Name: GUIDOME 76 (UPWELLING 76)
Start: 1976-09-18
End: 1976-10-14
Location: Northeast Atlantic Ocean (40W)

Type	Oceanographic cruise
Ship	Jean Charcot
Ship owner	Ifremer
Dates	18/09/1976 - 14/10/1976
Chief scientist(s)	COSTE Bernard
	INSTITUT MÉDITERRANÉEN D'OCÉANOLOGIE - UMR 7294 UMR IRD 235 - MARSEILLE 163 avenue de Luminy Bâtiment Méditerranée 13288 Marseille Cedex 9 +33(0)4 86 09 05 00 https://www.mio.osupytheas.fr/fr/linstitut-mediterraneen-doceanologie/presentation-2/
DOI	10.17600/76005211
Objective	Study of the consequences on planktonic production of the hydrological structure of this region (Guinea Dome). Its interest is linked to the fertilization, by upwelling, of an intertropical oceanic zone leading to a biological richness that is still little known. The work of thi scruise had a double purpose: analysis of the characteristics of the environment, study of the relationships between different parts of the ecosystem.

Sea/Ocean

Northeast Atlantic Ocean (40W)

(ATLANTIQUE NORD EST)

Ports

Port of departure : Dakar (Senegal)

Port of return : Dakar (Senegal)

Scientific Authority

COM / LAB. D'OCEANOG. PHYS. & BIOGEOCHIMIQ. (LOPB) - LUMINY

UMR 6535

Campus de Luminy

13288 MARSEILLE CEDEX 9

+33(0)4 91 82 91 15

queguiner@com.univ-mrs.fr

Participating bodie(s)

RCP MEDIPROD 247

Discipline(s)

PHYSICAL OCEANOGRAPHY
BIOLOGICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B01	Primary productivity	8 stations	MINAS Hans J.
B02	Phytoplankton pigments (eg chloroph	69 stations	MINAS Hans J.
B03	Seston	8 measurements	MINAS Hans J.
B09	Zooplankton	71	MINAS Hans J.
B90	Other biological/fisheries meas. Azote organique particulaire	8	MINAS Hans J.
H09	Water bottle stations	69 stations	MINAS Hans J.
H17	Optics (eg underwater light levels)	71 stations	MOREL André
H21	Oxygen	69 stations	MINAS Hans J.
H22	Phosphate	69 stations	COSTE Bernard
H24	Nitrate	69 stations	COSTE Bernard
H25	Nitrite	68 stations	COSTE Bernard
H26	Silicate	69 stations	COSTE Bernard
H90	Other chemical oceanographic meas.	-	COSTE Bernard

Summary of measurements

-37 hydrological stations up to 1,000 m with NIO bottles: measurements of temperature, salinity, oxygen, nutrients and chlorophyll a.
-8 biological stations up to 100 m with Niskin 30L bottles.
-24 hydrological stations up to 250 m with NIO bottles and 6 Niskin 6L bottles.
-Zooplankton sampling: 29 triple vertical net hauls, 102 vertical, 32 Hai tube fisheries, 29 horizontal, 20 phyto net hauls.

Positionning system

Geodetic system : VALEUR INDEFINIE

Data managed by SISMER

Bibliography

References of Technical Reports

Jacques Guy (1978). Campagne ANTIPROD I - Marion Dufresne. 1-28 mars 1977. Publications du Centre National pour l'Exploitation des Océans (CNEXO), Série Résultats des campagnes à la mer, n° 16, 1978 ISSN 0339-2902. https://archimer.ifremer.fr/doc/00306/41733/

Coste Bernard (1976). Résultats de la campagne Guidome (18 septembre - 13 octobre 1976). Publications du Centre National pour l'Exploitation des Océans (CNEXO), Série Résultats des campagnes à la mer, n° 13 - 1977. ISSN 0339-2902.