emma sheehan v3
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Biodiversity Impacts of
Wave HubDr Emma V. Sheehan
emma.sheehan@plymouth.ac.uk
UOE: Matthew J. Witt, Stuart Bearhop
Annette C. Broderick, W. James Grecian, David HodgsonStephen C. Votier and Brendan J. GodleyUOP: Martin Attrill, Kerry Howell, Jason Hall-Spencer
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Summary of talk
PRIMaRE Environmental postdocs
Benthic baseline 09
Worked planned 10
Marine megafauna surveys
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Prior environmental knowledge
at Wave Hub
10 miles offshore
60 m deep
Reports of fishing
activity
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Benthic baseline survey
Slide text (left aligned, blue,font size 20-28)
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HD video mounted on a
flying array
Cost and time effective
Baseline survey to detectlarge scale impact
- 60 sites (200 m transect)
Baseline sites can now beincorporated into statutory
environmental assessment &monitoring for devicedevelopers.
Sites along cable route alsoestablished
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ROV - Sea eye Falcon
Less cost and timeeffective
Requires more specialised
research vessels to belaunched from
Skilful manoeuvring
Best way of filming the seabed near to WECs
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Sediment box cores
Infauna box cores collected insoft sediment areas
Future: BERR funding appliedfor to ensure 2 methods arequantifiably comparable
Seeking funding to continueannual benthic monitoring at theWave Hub site
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Marine megafauna
Integrated marine mammal surveying with
monthly seabird surveys[more frequent in Summer and Autumn]
Static passive acoustic detection systemdeployed at the Wave Hub site
Next year, towed acoustics potentially possible using
PAMs hardware [industry standard]
JNCC have released recommendations for civilengineering projects at sea
C-Pods
Diverse range of cetaceans exist in South-west waters likely effects of Wave Hub
difficult to anticipate.
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SeabirdsBoat surveying at the Wave Hub site
Monthly, year-round, surveying
departing from St. Ives
Use UoE MFV Ann Kathleen, 6-
8 hours on-water
Point counts made at Control
and Wave Hub sampling stations
Seabird density derived for
regions, by species and guild
[i.e. functional foraging group] Survey results disseminated
openly by PDF-Email
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SeabirdsBiotelemetry at regional breeding colonies
Isles of Scilly & Grassholm (Wales)
Biotelemetry of seabirdsusing:
1. GPS
2. Argos-Fastloc
3. Light geolocation
4. VHF
Lesserblack-backed
gulls
Foraging trips made by gannets from Grassholm
Potential effects of Wave Hub
may not be measurable at the
site fieldwork necessary at
regional colonies
Work lead by Dr Steve Votier
with James Grecian (UoP)
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Water-column, remote sensing & ambient
marine sound
1. How does ambient marine sound at the Wave
Hub and control regions change through time?what is the absolute intensity?
2. How does the soundscape of the region
change pre- and post- construction?
3. Can certain features of the soundscape be
linked to the presence/absence of marinemammals or change in behaviour?
Awaiting decision from PRIMaRE on funding for this
project. proposed equipment, deployment strategy and data processingmethods confirmed
Plankton monitoring with PML
Ambient marine sound
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Summary
Benthic baseline complete and boatsurveys for megavertebrates andbirds ongoingRDA has funded baseline projects to2010 in all areas: capital equipment &personnel
Seeking additional operationalfunding for ROV and baseline projectsSeeking more major longer-termfunding from 2010 to assess impact ofimplemented Wave Hub SZ
Can incorporate statutoryenvironmental assessment &monitoring (for device developers,DEFRA/RDA, BERR, etc.)
Sally Sharrock
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Posters on display
Integrated studies into the biodiversity impacts of theWave Hub
Linking offshore development with seabirdpopulations
Making space for Nature in Marine Engineering
AcknowledgementsSWRDA
HEFCEDEFRA
John Walker, Tim Stevens,
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