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Seabed Habitat Mapping in the ChannelCartographie d'Habitat de Fond de la mer
dans la MancheDr Roger Coggan, Benthic Ecologist,Centre for Environment, Fisheries and Aquaculture Science (Cefas), UK Le Centre d'Environnement, Pêche et Science d'Aquaculture
Seabed Habitat Mapping in the Channel – March 2010
History. Histoire
2010> 5,000 yrs b.p.
Seabed Habitat Mapping in the Channel – March 2010
History. Histoire
Seabed Habitat Mapping in the Channel – March 2010
Human activities. Activités humaine
AggregatesGranulats
DisposalsDisposition
Navigation
Wind farmsParcs éoliens
Nuclear powerPuissance nucléaire
Fishing Pêche
Conservation
Wave energyÉnergie de vague
Récréation
Transport
Seabed Habitat Mapping in the Channel – March 2010
Human activities. Activités humaine
AggregatesGranulats
DisposalsDispositionFishing Pêche
Mike MarkeyKeith Hiscock
Human damage Dégâts humaine
Sustainable use Utilisation durableProtect economy & environmentProtégez l'économie & l'environnement
Seabed Habitat Mapping in the Channel – March 2010
The need for Habitat Maps. Le besoin de Cartes d'Habitat
Exploitation Conservation
Black bream Spondyliosoma cantharus
Roscoff
Plymouth
Norman Holme
Louis Cabioch
1960’s & 1970’s
“Distribution climatiques”
‘RCP Manche’1971 – 1976
1500 sampling sites
Drague Rallier du Baty
‘MABEMONO’ 2006-2007+ Benthoseine 1999
la benne Hamon
Starfish / Étoile de mer Asterias rubens
Whelk / Bulot Buccinum undatum
CHARM-II2006 - 2008
+
Seabed Habitat Mapping in the Channel – March 2010
Habitat mappingCartographie d'Habitat
CHARM-3
Ken Collins
C. Lumb
Mapping: Part 1 – Acoustic survey
~ 6 km
Mapping: Part 2 – Sampling survey
0.1m2 Hamon Grab
A)
0
20
40
60
80
100
-5.5
-4.5
-3.5
-2.5
-1.5
-0.5 0.5
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10.5
11.5
Phi
cum
ulat
ive
% w
eigh
ts
A
B
C
D
E
In-fauna
Sediment description
Particle size analysis
Epi-faunal communities
Epifauna
2 m Beam trawl
Video & still images
Association betweenepi-fauna and substrate
Seabed Habitat Mapping in the Channel – March 2010
Habitat Classification Typologie des habitats
RESULTS OF OBSERVATIONSSubstrate: RockExposure: Strong currents Depth: 45 metres deepSpecies: Balanus sp.
Tubularia indivisa
A4.111A4.111
A5.26A5.26A5.141A5.141
Seabed Habitat Mapping in the Channel – March 2010
Habitat Maps of the Channel Cartes des Habitats de La Manche
Coggan & Diesing, 2009.Continental Shelf Research
doi:10.1016/j.csr.2009.12.002
Keith Hiscock
ExploitationConservationIntegrated
MarineResource
Management
Thank you for listeningMerci pour votre attention
Seabed Habitat Mapping in the Channel – March 2010
Thank you for listeningMerci pour votre attention
