PACIPROD

Name: PACIPROD
Start: 1986-08-03
End: 1986-09-21
Location: Northwest Pacific Ocean (180W)

Type	Oceanographic cruise
Ship	Jean Charcot
Ship owner	Ifremer
Dates	03/08/1986 - 21/09/1986
Chief scientist(s)	MINAS Hans J., 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/
DOI	10.17600/86003711
Objective	Studying the general system of pelagic production in 2 zones of the East Pacific which receive nutrient enrichment: the coastal upwelling of Peru (around 15°S) and the upwelling linked to the equatorial divergence at the Galapagos. The programme aims to: use different methods (C14, C13, N15, Oxygen) to quantify primary production in the areas studied; develop an experimental programme to define the dynamics of carbon and nitrogen assimilation, study light-photosynthesis relationships; study the carbonate systems in different water masses down to 2,000 m, along the leg connecting the 2 predetermined zones; obtain qualitative and quantitative data on zooplankton populations.

Sea/Ocean

Northwest Pacific Ocean (180W)

(PACIFIQUE EQUATORIAL EST)

Ports

Port of departure : Callao (Peru)

Port of return : Panama (Panama)

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)

INSU, UNIVERSITE (MARSEILLE, PARIS VI, BREST), MNHN

Discipline(s)

PHYSICAL OCEANOGRAPHY
MARINE GEOSCIENCES
BIOLOGICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B01	Primary productivity	13 stations	MINAS Hans J.
B02	Phytoplankton pigments (eg chloroph Chlorophylle a entre la surface et -100m	48 stations	MINAS Hans J.
B09	Zooplankton filet triple WP2	48 deployments	MINAS Hans J.
G04	Core soft bottom	2 cores	MINAS Hans J.
G74	Multi-beam echosounding SEABEAM	-	MINAS Hans J.
H09	Water bottle stations CTD Guilaline (D. Taillez responsable du materiel)	48 stations	MINAS Hans J.
H10	CTD stations	48 stations	MINAS Hans J.
H17	Optics (eg underwater light levels) Energie lumineuse en continu, mesures photometriques	-	MINAS Hans J.
H21	Oxygen	48 stations	MINAS Hans J.
H22	Phosphate	48 stations	MINAS Hans J.
H24	Nitrate	48 stations	MINAS Hans J.
H25	Nitrite	48 stations	MINAS Hans J.
H26	Silicate	48 stations	MINAS Hans J.
H74	Carbon dioxide	46 stations	MINAS Hans J.
H76	Ammonia	48 stations	MINAS Hans J.

Summary of measurements

-48 stations with CTD + rosette (from surface to 2,000 m); Acquisition of temperature and salinity and sampling for various titrations (nutrients, PO4, NO3, NO2, silicate, dissolved oxygen, total alkalinity, CO2, chlorophyll a).
-At each of these 46 stations: fishing for zooplankton using triple WP2 net.
-41 SHET stations (continuous measurement of hydrological parameters and nutrients between 0 and 200 m).
-13 stations for production: water samples taken in 30-L Niskin bottles to measure hydrological parameters and nutrients and samples taken for incubations in situ (13C, 14C, 15N, O2).
-Photometric measurements taken around solar noon (when possible) and continuous logging of luminous energy.
-2 core samples (performed at the request of GIF/YVETTE laboratory).

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1972 = WGS72

Positioning system : SATELLITE ( +GPS ???)

Data managed by SISMER

Bibliography

Publications

Bricaud A, Morel A, Babin M, Allali K, Claustre H (1998). Variations of light absorption by suspended particles with chlorophyll a concentration in oceanic (case 1) waters: Analysis and implications for bio-optical models. Journal Of Geophysical Research-oceans, 103(C13), 31033-31044. https://doi.org/10.1029/98JC02712

References of Articles published in other Periodicals or Scientific Works acclaimed in the Field

Bricaud Annick, Stramski Dariusz (1990). Spectral absorption-coefficients of living phytoplankton and nonalgal biogenous matter - a comparison between the peru upwelling area and the Sargasso Sea. Limnology And Oceanography, 35(3), 562-582.

Minas Hj, Coste B, Minas M, Raimbault P (1990). Conditions hydrologiques, chimiques et production primaire dans les upwellings du Perou et des iles Galapagos, en regime d'hivers austral (Campagne Paciprod). Oceanologica Acta, Special issue Open Access version : https://archimer.ifremer.fr/doc/00268/37956/

Minas Hj, Coste B (1990). Campagne Paciprod: Production des upwellings cotiers (Peru) et equatoriaux (Zones des iles des Galapagos). Oceanologica Acta, Special issue Open Access version : https://archimer.ifremer.fr/doc/00268/37935/

References of Technical Reports

Coste Bernard, Minas Hans Joachim, Bonin Marie-Claude (1989). Production pélagique des côtes du Pérou et des îles Galapagos. Campagne PACIPROD. 8 août - 18 septembre 1986. Campagnes Océanographiques Françaises n° 7 - 1989. ISSN 0761-3989.