EPI 2 - EPICEA 1 - EPAUGAS

Name: EPI 2 - EPICEA 1 - EPAUGAS
Start: 1984-05-11
End: 1984-05-31
Location: Northeast Atlantic Ocean (40W)

Type	Oceanographic cruise
Set	This cruise is part of the set EPI : ENVIRONNEMENT PROFOND : IMPACT
Ship	Le Suroît
Ship owner	Ifremer
Dates	11/05/1984 - 31/05/1984
Chief scientist(s)	SIBUET Myriam
	IFREMER SIEGE 1625 route de Sainte-Anne CS 10070 29280 PLOUZANE +33(0)2 98 22 40 40 https://www.ifremer.fr/fr
DOI	10.17600/84000911
Objective	This multidisciplinary cruise is part of the EPI programme (Deep Environment: Impact). The following were explored: the area of continuing studies chosen for the EPI programme. For the EPAUGAS programme, 2 sites were selected: the Meriadzek terrace (already well explored before) and the radioactive waste disposal site (EPICEA programme).

Sea/Ocean

Northeast Atlantic Ocean (40W)

(ATLANTIQUE NORD EST)

Ports

Port of departure : Brest (France)

Port of return : Brest (France)

Scientific Authority

IFREMER SIEGE

1625 route de Sainte-Anne

CS 10070

29280 PLOUZANE

+33(0)2 98 22 40 40

https://www.ifremer.fr/fr

Participating bodie(s)

IFREMER CENTRE DE BREST - CEA

Discipline(s)

PHYSICAL OCEANOGRAPHY
BIOLOGICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B18	Zoobenthos	11	SIBUET Myriam
B19	Demersal fish abyssaux	7 specimens	SIBUET Myriam
B37	Taggings	4 specimens	SIBUET Myriam
B90	Other biological/fisheries meas. 6 camera-thons	6 videos	SIBUET Myriam
D01	Current meters	1 deployments	SIBUET Myriam
D90	Other physical oceanographic meas. Pieges a particules	4 deployments	SIBUET Myriam
G08	Bottom photography 415 metres (17 bobines)	-	SIBUET Myriam
G75	Single channel seismic reflection Sondeur 3.5 kHz	-	SIBUET Myriam
H10	CTD stations	15 stations	SIBUET Myriam
H31	Radioactivity	9 stations	SIBUET Myriam
H90	Other chemical oceanographic meas. Nephelometrie (mesuree par bathysonde)	15 stations	SIBUET Myriam
P13	Contaminants in organisms	5 measurements	SIBUET Myriam

Summary of measurements

-Intensive imagery survey (large photo coverage) using the AUV "Epaulard": 11 tracks
-Recovery of two series of particle trap moorings (moorings during EPI 1).
-Mooring of two other series.
-Capture of organisms using traps.
-Implementation of a tuna camera.
-Contamination experiment of organisms, sediments, water.
-15 CTD stations with nephelometry.
-7 hydrological longlines.
-Mooring of an autonomous multidisciplinary module (hydrology and sedimentology).

Location map

Positionning system

Geodetic system : VALEUR INDEFINIE

Positioning system : En surface : inconnu, Fond : acoustique

Data managed by SISMER

Bibliography

Publications

Vangriesheim Annick, Khripounoff Alexis (1990). Near-bottom particle concentration and flux: Temporal variations observed with sediment traps and nepholometer on the Meriadzek Terrace, Bay of Biscay. Progress In Oceanography, 24(1-4), 103-116. https://doi.org/10.1016/0079-6611(90)90023-U

Mahaut Marie-Laure, Geistdoerfer Patrick, Sibuet Myriam (1990). Trophic strategies in carnivorous fishes: their significance in energy transfer in the deep-sea benthic ecosystem (Meriadzek Terrace — Bay of Biscay). Progress In Oceanography, 24(1-4), 223-237. https://doi.org/10.1016/0079-6611(90)90032-W

Mauviel Anne, Juniper S. Kim, Sibuet Myriam (1987). Discovery of an enteropneust associated with a mound-burrows trace in the deep sea: ecological and geochemical implications. Deep-sea Research Part A-oceanographic Research Papers, 34(3), 329-335. https://doi.org/10.1016/0198-0149(87)90141-5

References of Technical Reports

Kerbrat Rene (1989). Etude lithostratigraphique des carottes prélevées dans la zone d'immersion des déchets radioactifs de l'Atlantique nord est (zone aen). Intérêt pour la prévision des impacts. DERO-GM 89-15. https://archimer.ifremer.fr/doc/00431/54304/

(1984) EPAUGAS-EPICA. 11 mai 1984-30 mai 1984.