Download - Scottish Seamounts - MASTS
![Page 1: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/1.jpg)
An offshore resource of biological diversity, ecosystem processes and services
Lea-Anne Henry, Heriot-Watt UniversityPeter Chaniotis, Joint Nature Conservation CommitteeJ. Murray Roberts, Heriot-Watt University
Scottish seamounts
www.cmbb.hw.ac.uk
![Page 2: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/2.jpg)
Scottish seamounts OSPAR list of threatened and/or declining species and
habitats
Rosemary Bank
Anton Dohrn
Hebrides Terrace
RockallTrough
![Page 3: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/3.jpg)
1. Do components support Priority Marine Features (PMFs)?2. Does one component enhance another?
Ecosystem ‘synergies’
![Page 4: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/4.jpg)
Biophysical
Topography & internal waves ↑ surface circulation (AD, HT) Anti-cyclonic circulation (AD) could ‘focus’ food at the summit Internal waves and Taylor columns ↑ vertical mixing downstream (AD) Eddies (AD, RB) Downwelling (AD) Current-shaped sedimentary patterns (all)
Roberts et al. 1974; Xing & Davies 1998; Burrows & Thorpe 1999; New & Smythe-Wright 2001; Hall & Davies 2005; Neat et al. 2008
![Page 5: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/5.jpg)
Biophysical
Coral gardens (AD/all?)
Orange roughy (all)
Atlantic white-sided dolphin (RB)
JNCC
JNCC
CRRU
hydrodynamic control of food
accelerated current speeds
retention mechanisms
Embling 2007; ICES 2007
![Page 6: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/6.jpg)
Benthos
JNCC/JC073
High diversity/lack of endemism
Jacobs et al. 2006; Howell et al. 2010
![Page 7: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/7.jpg)
BenthosCold-water coral reefs
JNCC/JC073
![Page 8: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/8.jpg)
BenthosDeep-sea sponge aggregations
JNCC/JC073
![Page 9: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/9.jpg)
BenthosCoral gardens
JNCC/JC073
![Page 10: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/10.jpg)
BenthosLeafscale gulper shark
Oceanlab
Gravid sharks caught with corals: poss. nursery? (RB)
Orange roughy
JNCC
Reefs important to life history (all)
Blue ling
NMS
Spawning habitat (RB)
Grehan et al. 2004; DEFRA 2007; Large et al. 2010
![Page 11: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/11.jpg)
Fish spawning of mesopelagic and PMF fish species
▪ blue whiting, orange roughy, blue ling, mackerel, leafscale gulper shark, others
JNCC/ JC073 Changing Oceans Expedition
Dransfield et al. 2005; DEFRA 2007; Neat et al. 2008; Howell et al. 2009; ICES 2010; Large et al. 2010
![Page 12: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/12.jpg)
FishBlue whiting
Blue ling
NMS
Fisheries.no
Long-finned pilot whale
Oceanlab
Sowerby’s beaked whale
CRRU
ICES 2007; Spitz et al. 2011
![Page 13: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/13.jpg)
Marine Mammals
Topographic interactions are key
Migration route to FSC
Mating/calving MPA network and
conservation ‘corridors’
Evans et al. 1997; Pollock et al. 2000; Charif et al. 2001; Weir et al. 2001; Swift et al. 2002; Hastie et al. 2003; Macleod et al. 2003; Reid et al. 2003; Embling 2007; Boisseau et al. 2011; MCR 2011
Faroe-Shetland Channel
RB
AD
HT
Rockall Trough
![Page 14: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/14.jpg)
Conservation prioritiese.g. Taranto et al. 2012(PLoS One)
![Page 15: Scottish Seamounts - MASTS](https://reader035.vdocuments.us/reader035/viewer/2022062319/558541ccd8b42a58788b4d95/html5/thumbnails/15.jpg)
Thank you Captain/crew and scientists on board the James
Cook Cruise 073 ‘Changing Oceans Expedition’ Holland I crew Richard McLanaghan (MCR) Laura Robson (JNCC) Kerry Howell (Plymouth) ICES WGDEC discussions