ECHOSAR 6

Name: ECHOSAR 6
Start: 1984-03-06
End: 1984-03-26
Location: Northeast Atlantic Ocean (40W)

Type	Oceanographic cruise
Set	This cruise is part of the set ECHOSAR
Ship	Capricorne
Ship owner	Ifremer
Dates	06/03/1984 - 26/03/1984
Chief scientist(s)	MARCHAL Emile
	IRD ANTENNE INSTITUT OCEANOGRAPHIQUE INSTITUT OCEANOGRAPHIQUE 195 Rue Saint Jacques 75005 PARIS +33 (0)1 44.32.10.70
DOI	10.17600/84008711
Objective	Evaluation, by acoustic and fishing methods identification, of the distribution and abundance of fish populations located between southern Guinea Bissau and Cape Blanc.

Sea/Ocean

Northeast Atlantic Ocean (40W)

(Atlantique Nord Est)

Scientific Authority

IRD CENTRE DE HANN

Route des Peres Maristes

BP 1386

DAKAR - HANN

+221 849 35 35

infos@ird.sn

https://www.ird.sn/centre/index.htm

Participating bodie(s)

GERBAM, CRODT (DAKAR), SECRETARIAT D'ETAT AUX PECHES (GUINEE BISSAU)

Discipline(s)

PHYSICAL OCEANOGRAPHY
BIOLOGICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B14	Pelagic fish	-	MARCHAL Emile
B19	Demersal fish Traict de chalut poissons benthiques exploites	30 hauls	MARCHAL Emile
B28	Acoustic reflection on marine organ 2000 milles d'echo-integration	-	MARCHAL Emile
D01	Current meters	40 deployments	MARCHAL Emile
H09	Water bottle stations Mesure de temperature et salinite	40 stations	MARCHAL Emile
H71	Surface measurements underway (T,S) Mesure tous les milles	-	MARCHAL Emile

Summary of measurements

-Recording of the noise of the shoals of fish (calibration previously carried out in the bay of Dakar for 24 hours) at station and underway. (2,000 miles of echo-integration) Echo on marine beings.
-30 trawl hauls for identification, exploited benthic fish.
-40 stations with temperature, salinity and current measurements.
-Underway: one surface temperature measurement every mile.

Location map

Bibliography

Publications

Samb Birame, Petitgas Pierre (1997). Estimation de la précision des campagnes acoustiques au Sénégal par la méthode géostatistique transitive à une dimension. Aquatic Living Resources, 10(2), 75-82. Publisher's official version : https://doi.org/10.1051/alr:1997008 , Open Access version : https://archimer.ifremer.fr/doc/00188/29883/

Thesis using campaign data

Sarre Abdoulaye (2017). Approche acoustique de la dynamique et la distribution spatiale des ressources halieutiques de petits pélagiques dans l'upwelling sénégalo-mauritanien / Acoustic approach of the dynamic and spatial distribution of small pelagic marine resources inside Sénégalo-mauritanian upwelling. PhD Thesis, Université de Bretagne Occidentale.