IBTS 2012

Name: IBTS 2012
Start: 2012-01-13
End: 2012-02-13
Location: North Sea

Type	Oceanographic cruise
Set	This cruise is part of the set INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS)
Ship	Thalassa
Ship owner	Ifremer
Dates	13/01/2012 - 13/02/2012
Chief scientist(s)	VERIN Yves
	HALIEUTIQUE MANCHE MER DU NORD - BOULOGNE-SUR-MER Centre Ifremer Manche Mer du Nord 150 quai Gambetta 62200 Boulogne-sur-Mer +33 (0)3 21 99 56 00 https://manchemerdunord.ifremer.fr/
DOI	10.17600/12040010
Objective	An ecosystem-based approach to sustainable management of fisheries resources. Constructing time-series of abundance indexes for the main commercial species in the North Sea and Eastern English Channel. (Assessment of main commercial fish stocks). Larval index calculated for herring and sprat. Characterization of winter spawning zones and habitats in the North Sea. Study of benthic invertebrate assemblages based on observations obtained using bottom trawl. Studying hydrological, phytoplankton and zooplankton compartments. Recording of acoustic data to improve the calculation of abundance indexes. Observation of seabirds and marine mammals. The cruise is related to the following project: International Bottom Trawl Survey programme - Assessments of fisheries under EU management.

Sea/Ocean

North Sea

English Channel

Ports

Port of departure : Brest (France)

Port of return : Boulogne (France)

Project

INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS) - FRANCE

Scientific Authority

HALIEUTIQUE MANCHE MER DU NORD - BOULOGNE-SUR-MER

Centre Ifremer Manche Mer du Nord

150 quai Gambetta

62200 Boulogne-sur-Mer

+33 (0)3 21 99 56 00

https://manchemerdunord.ifremer.fr/

Participating bodie(s)

Ifremer

Discipline(s)

CHEMICAL OCEANOGRAPHY
FISHERIES
BIOLOGICAL OCEANOGRAPHY
PHYSICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B02	Phytoplankton pigments (eg chloroph On the CTD	194 stations	VERIN Yves
B08	Phytoplankton Niskin bottle	193 stations	ANTAJAN Elvire
B09	Zooplankton Bongo net	162 deployments	VERIN Yves
B13	Eggs & larvae + C.Loots - Continuous Underway Fish Eggs Sampler (595) - Methot Isaac Net (130)	-	VAZ Sandrine
B14	Pelagic fish Pelagic sampling	1 hauls	VERIN Yves
B18	Zoobenthos 89 GOV trawls - 50 underwater videos	-	VAZ Sandrine
B19	Demersal fish 89 GOV trawls	-	VERIN Yves
B25	Birds Observations in the Channel	-	VERIN Yves
B26	Mammals & reptiles Observations in the Channel	-	VERIN Yves
B28	Acoustic reflection on marine organ Acoustic recordings	-	VERIN Yves
G73	Single-beam echosounding	-	VERIN Yves
H09	Water bottle stations	193 stations	VERIN Yves
H10	CTD stations Seabird SBE19+ bathysonde	194 stations	VERIN Yves
H16	Transparency (eg transmissometer) On the CTD	194 stations	VERIN Yves
H17	Optics (eg underwater light levels) On the CTD	194 stations	VERIN Yves
H22	Phosphate	192 stations	VERIN Yves
H24	Nitrate	192 stations	VERIN Yves
H25	Nitrite	192 stations	VERIN Yves
H26	Silicate	192 stations	VERIN Yves
H71	Surface measurements underway (T,S)	-	VERIN Yves
H76	Ammonia	193 stations	VERIN Yves
M06	Routine standard measurements	-	VERIN Yves
P01	Suspended matter	193 stations	VERIN Yves

Summary of measurements

-Samples taken using GOV wide opening vertical trawl: calculating abundance indexes for commercial species.
-Pelagic sampling in order to identify acoustic detections.
-Acoustic prospecting: assessment of pelagic species in the English Channel; recording data from ER60 and ME70.
-Sampling of larvae: calculation of larval abundance indexes for herring and sprat using larva net.
-Egg sampling: Characterization of winter spawning zones and habitats in the North Sea. Sampling using CUFES (Continuous Fish Eggs Sampler).
-Sampling of zooplankton and phytoplankton: Study on hydrological, phytoplankton and zooplankton compartments.
-Observation of seabirds and marine mammals in the English Channel.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS différentiel

Joint document(s)

Bibliography of IBTS2012

Published data

Foveau Aurélie, Llapasset Margaux, Desroy Nicolas, Vaz Sandrine (2016). Life history traits' scoring to calculate a trawl disturbance indicator on mega- epibenthic fauna. https://doi.org/10.17882/44632

Data managed by SISMER

Bibliography

Publications

ICES (2022). Herring Assessment Working Group for the area south of 62° N (HAWG). ICES Scientific Reports/Rapports scientifiques du CIEM, 4(16), 745pp. Publisher's official version : https://doi.org/10.17895/ices.pub.10072 , Open Access version : https://archimer.ifremer.fr/doc/00877/98908/

Bourdaud Pierre, Gascuel Didier, Bentorcha Abdelkrim, Brind'Amour Anik (2016). New trophic indicators and target values for an ecosystem-based management of fisheries. Ecological Indicators, 61, 588-601. Publisher's official version : https://doi.org/10.1016/j.ecolind.2015.10.010 , Open Access version : https://archimer.ifremer.fr/doc/00288/39917/

Delacroix Sylvain, Germain Gregory , Berger Laurent , Billard Jean-Yves (2016). Bubble sweep-down occurrence characterization on Research Vessels. Ocean Engineering, 111, 34-42. Publisher's official version : https://doi.org/10.1016/j.oceaneng.2015.10.040 , Open Access version : https://archimer.ifremer.fr/doc/00294/40557/

Cormon Xochitl, Ernande Bruno , Kempf Alexander, Vermard Youen , Marchal Paul (2016). North Sea saithe Pollachius virens growth in relation to food availability, density dependence and temperature. Marine Ecology Progress Series, 542, 141-151. Publisher's official version : https://doi.org/10.3354/meps11559 , Open Access version : https://archimer.ifremer.fr/doc/00314/42499/

Cormon Xochitl, Loots Christophe , Vaz Sandrine , Vermard Youen , Marchal Paul (2014). Spatial interactions between saithe (Pollachius virens) and hake (Merluccius merluccius) in the North Sea. Ices Journal Of Marine Science, 71(6), 1342-1355. Publisher's official version : https://doi.org/10.1093/icesjms/fsu120 , Open Access version : https://archimer.ifremer.fr/doc/00200/31146/

References of Technical Reports

Amelot Morgane, Bastleer Jurgen, Foucher Eric , Girardin Raphael , Marchal Paul , Poos Jan Jaap, Sys Klaas (2020). Channel and North Sea ray stock assessment in a data limited framework. SUMARiS Interreg project. Deliverable D1.3.1. https://archimer.ifremer.fr/doc/00620/73220/

Foucher Eric , Blanchard Michel, Cugier Philippe, Desroy Nicolas , Dreanno Catherine , Fauchot Juliette, Fifas Spyros , Guyader Olivier , Jean Frederic, Le Gallic Bertrand, Riou Philippe, Schapira Mathilde , Thiebaut Eric (2015). Le projet ANR-COMANCHE 2010-STRA-010. Interactions écosystémiques et impacts anthropiques dans les populations de COquilles Saint-Jacques (Pecten maximus) de la MANCHE. Rapport scientifique final. https://archimer.ifremer.fr/doc/00251/36236/

Villanueva Ching-Maria , Ernande Bruno , Baheux Mickael, Lefevbre Sébastien (2014). Écologie fonctionnelle et relations trophiques de poissons: Protocoles de collecte et analyse des échantillons en Manche Orientale. R.INT.STH.HMMN/RBE/LBH.RH LAB RESEAUX TROPHIQUES 2014-1.

Mahe Kelig , Sevin Karine, Moerman Martine, Holmes Alison (2014). Report of the Seabass (Dicentrarchus labrax) Otolith and Scale Exchange Scheme 2013. https://archimer.ifremer.fr/doc/00185/29596/

Salaun Michele, Verin Yves (2013). Compte rendu de la réunion du groupe CIEM International Bottom Trawl Survey : IBTSWG. Lisbonne, 8-12 avril 2013. RBE/EDERU/2013/CRGT10.

Foucher Eric , Bertrand Jacques, Dintheer Christian, Trenkel Verena (2013). Eléments de réflexion sur les demandes potentielles de campagnes océanographiques par la communauté des halieutes de l’Ifremer à l’horizon 2021.

Gourtay - Le Hingrat Francoise (2012). Chargement des données CTD de la campagne IBTS 2012 dans la base SISMER. IDM/SISMER/12-012.

Thesis using campaign data

Barrios Alexander (2017). Influence des variations des facteurs environnementaux sur la croissance de poissons de l'Atlantique. PhD Thesis, Uniivesité Breatgne Loire, Agrocampus Ouest. https://archimer.ifremer.fr/doc/00419/53026/

Cormon Xochitl (2015). Impacts de l’émergence d’un top-prédateur dans un ecosystème exploité : le merlu et le lieu noir de mer du Nord. Quelles interactions ? Quelles conséquences ? / Impacts of a top-predator emergence in an exploited ecosystem: North Sea hake and saithe. Which interactions? What consequences? PhD Thesis, Université Lille 1. https://archimer.ifremer.fr/doc/00345/45638/

Delacroix Sylvain (2015). Caractérisation de la génération et de la propagation de bulles autour de la carène des navires scientifiques. PhD Thesis, Université de Bretagne Occidentale. https://archimer.ifremer.fr/doc/00270/38169/

Gras Michael (2013). Contribution des frayères côtières au recrutement du stock de seiche Sepia officinalis de Manche : lien entre le succès de la phase pré-recrutée et l'abondance de la ressource. PhD Thesis, Université de Caen Basse-Normandie. https://archimer.ifremer.fr/doc/00160/27135/

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