SMFH SURVEY TRAWL06

Name: SMFH SURVEY TRAWL06
Start: 2006-02-24
End: 2006-03-09
Location: English Channel

Type	Oceanographic cruise
Ship	Thalassa
Ship owner	Ifremer
Dates	24/02/2006 - 09/03/2006
Chief scientist(s)	MAZAURIC Valérie, VINCENT Benoît
	RECHERCHES ET DÉVELOPPEMENTS TECHNOLOGIQUES Centre Ifremer Bretagne ZI Pointe du Diable CS 10070 29280 Plouzané +33(0) 2 98 22 41 41 https://rd-technologiques.ifremer.fr/
DOI	10.17600/6040020
Objective	Calibration of ME70 echosounder; Acoustic data acquisition using the ER60 and ME70 echosounders; Validation HERMES software which supervises the ER60 and ME70; SurveyTrawl bottom trawl, developed by IMR, deployed; While trawling, deployment of the EROC (towed trawl observation vehicle) equipped with an ER60 200 kHz acoustic payload; During trawling, trials on a MARPORT wireless trawl sounder; Seaward from the continental shelf, acquisition of acoustic data on the volume reverberation from the deep ocean floor; Upgrading of the SABRINA software which controls emission levels of hull-mounted sounders. The related programs are: Operational implementation of fisheries sounders (PJA0116) and Tools and methods for fisheries observation (PJD0106).

Sea/Ocean

English Channel

(Et Golfe de Gascogne)

Ports

Port of departure : Boulogne (France)

Port of return : Brest (France)

Limits

North	South	West	East
50.8	46.4	-5.6	1.6

Scientific Authority

RECHERCHES ET DÉVELOPPEMENTS TECHNOLOGIQUES

Centre Ifremer Bretagne

ZI Pointe du Diable

29280 Plouzané

+33(0) 2 98 22 41 41

https://rd-technologiques.ifremer.fr/

Participating bodie(s)

Ifremer et IMR (Institute of Marine Research) Norvège

Discipline(s)

TECHNOLOGY
MARINE GEOSCIENCES
FISHERIES

Code	Label	Quantity	PI
B28	Acoustic reflection on marine organ Agrégations:Harengs(Manche),Maquereaux-sardines-chinchards(Golfe Gasc)	-	MAZAURIC Valérie
B64	Gear research SurveyTrawl EROC Sondeur de chalut MARPORT(G.Bavouzet & D.Clec'h)	-	VINCENT Benoît
G73	Single-beam echosounding Sondeurs ER60 - Charge utile EROC (L.Berger & C. Scalabrin)	-	MAZAURIC Valérie
G74	Multi-beam echosounding Sonderu ME70 (L. Berger)	-	MAZAURIC Valérie

Summary of measurements

-Calibration of ME70 echosounder in the Bay of Douarnenez for several multibeam configurations.
-Acquisition of acoustic data from the ER60 (18, 38, 70, 120 and 200 kHz) and of the ME70 in several configurations.
-Acoustic data collected on a) aggregations of large herring aggregations in the English Channel, b) mackerel aggregations, shoals of horse mackerel and sardines on the edges of the shelf and c) small shoals of horse mackerel in Southern Brittany.
-The HERMES (Hydroacoustic Echo Remoting Module for Echo Sounders) software was validated for the configuration of ER60 and ME70 echosounders, archiving of data in HAC format and dissemination of data on the shipboard network.
-Deployment of IMR SurveyTrawl bottom trawl: validation of shooting/turning maneuvers and determining the point at which the trawl doors operate to ensure the geometric stability of the fishing gear.
-While trawling, deployment of the EROC (towed trawl observation vehicle) equipped with an ER60 200 kHz acoustic payload. The acoustic data collected by the payload and that collected by the hull-mounted echosounders were compared.
-During the trawling, the wireless MARPORT trawl sounder was tested. Trial carried out in the framework of examining a replacement for the current OSSIAN500 system.
-Offshore from the continental shelf, acquisition of acoustic data on deep ocean volume reverberation.
-Following the overhauls of the casing of the RV Thalassa's echosounder in September 2005, the SABRINA software used to control hull-mounted sounder emission levels was upgraded.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS différentiel

Data managed by SISMER

Bibliography

Publications

Trenkel Verena , Mazauric Valerie, Berger Laurent (2008). The new fisheries multibeam echosounder ME70: description and expected contribution to fisheries research. ICES Journal of Marine Science, 65(4), 645-655. Publisher's official version : https://doi.org/10.1093/icesjms/fsn051 , Open Access version : https://archimer.ifremer.fr/doc/00000/4117/

References of Technical Reports

L. BERGER, G. QUEMENER, V. MAZAURIC (2006). Spécifications fonctionnelles du logiciel de configuration d?acquisition et d?archivage des sondeurs halieutiques. DOP/CB/NSE/ILE /DSF/04-052, octobre 2006.

V.MAZAURIC, L.BERGER (2006). Sondeur Multifaisceau Halieutique ME70, Bilan de projet/Perspectives d?exploitation et de transfert. TSI/AS-06/101, mai 2006.

V.MAZAURIC, L.BERGER, D.CLEC?H (2006). Sondeur Multifaisceau Halieutique ME70, Ré-aménagement du PC scientifique du N/O Thalassa. TSI/AS-06/113, juillet 2006.

V.MAZAURIC, L.BERGER, V.TRENKEL (2006). Document préparatoire à la réunion du Comité Directeur SMFH du 18 octobre 2006. TSI/AS-06/ 128, octobre 2006.

References of International Seminar Communications

L.BERGER, V.MAZAURIC, V.TRENKEL (2007). Description of the new acoustic platform of FRV Thalassa. Groupe de travail CIEM FAST Dublin, 23-27 avril 2007.

V.MAZAURIC, L.BERGER, V.TRENKEL (2007). Preliminary results with the acoustic platform of FRV Thalassa combining single vertical echo-sounders and the new Multibeam Echo Sounder ME70. Groupe de travail CIEM FAST Dublin, 23-27 avril 2007.

C.SCALABRIN, J.Y.COAIL, G. BAVOUZET, J.P.VACHEROT, M. LE GOFF, J. MORARD (2006). Comparing data from haul mounted and ROV acoustic: impact on acoustic density measurements of different target to sensor distances. Conférence annuelle du CIEM 19-23 septembre 2006, Maastricht.

ENGÅS, J.W. VALDEMARSEN, TERJE JØRGENSEN, HUSE, B. VINCENT, G. BAVOUZET, K. GAMST (2006). A Non-Herding Demersal Survey Trawl ? Possible Design Option and Rigging Requirements. ICES Boston, Oct. 30 - Nov. 3 2006

V.MAZAURIC, L.BERGER, V.TRENKEL (2006). Biomass estimation using the new Multibeam Echo Sounder ME70. Conférence annuelle du CIEM 19-23 septembre 2006, Maastricht.

V.TRENKEL V.MAZAURIC, L.BERGER. (2006). First results with the new Multibeam Echo Sounder ME70. 4th Joint session of the Acoustical Society of America and the Acoustical Society of Japan, 28 November -2 December 2006, Honolulu, Hawaï.