Marine biological survey to establish the distribution and status of ...

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COMMISSIONED REPORT Commissioned Report No. 438 Marine biological survey to establish the distribution and status of fan mussels Atrina fragilis and other Marine Protected Area (MPA) search features within the Sound of Canna, Inner Hebrides For further information on this report please contact: Laura Clark Scottish Natural Heritage Great Glen House Leachkin Road INVERNESS IV3 8NW Telephone: 01463 725 237 E-mail: Laura.Clark@snh.gov.uk This report should be quoted as: Howson, C. M., Clark, L., Mercer, T. S. and James, B. (2012). Marine biological survey to establish the distribution and status of fan mussels Atrina fragilis and other Marine Protected Area (MPA) search features within the Sound of Canna, Inner Hebrides. Scottish Natural Heritage Commissioned Report No. 438. This report, or any part of it, should not be reproduced without the permission of Scottish Natural Heritage. This permission will not be withheld unreasonably. The views expressed by the author(s) of this report should not be taken as the views and policies of Scottish Natural Heritage. © Scottish Natural Heritage 2012
Page 1: Scottish Natural Heritage Commissio
Page 5 and 6: The Sound of Canna is a steep-sided
Page 7 and 8: Page no. Figure 8 Video stations su
Page 9 and 10: Page no. Plate 4 Example photograph
Page 11 and 12: Figure 1 The 2010 Sound of Canna su
Page 13 and 14: The floor of the sound supports a r
Page 15 and 16: Figure 4 The distribution of MPA se
Page 17 and 18: 1.5 Human activities in the Sound o
Page 19 and 20: the morning of the 28 th September.
Page 21 and 22: Plate 2 ASML drop camera and frame
Page 23 and 24: The video survey was carried out in
Page 25 and 26: sketches of the site. These data we
Page 27 and 28: 3 RESULTS Successful drop-down vide
Page 29 and 30: Biotope Description Count SS.SCS.IC
Page 31 and 32: five discrete biotope complexes on
Page 33 and 34: The shelf deeps are not considered
Page 35 and 36: The crab Goneplax rhomboides was se
Page 37 and 38: The second biotope SS.SMu.CSaMu.Afi
Page 39 and 40: Description Maerl, Phymatolithon ca
Page 41 and 42: Plate 7 Scattered maerl medallions
Page 43 and 44: Axinella infundibuliformis and poss
Page 45 and 46: Plate 10 Zostera marina seagrass be
Page 47 and 48: The largest area was situated to th
Page 49 and 50: A characteristic feature of the Atr
Page 51 and 52: present on the reef to the north of
Page 53 and 54:
The Sound of Canna samples matched
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Northern species of starfish Luidia
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Figure 34 presents a suggested dist
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Two highly mobile species search fe
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4.2 Qualities of the MPA search fea
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video that the diversity was consid
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was 2.9, one of the lowest calculat
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5 CONCLUSIONS 5.1 The nature conser
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6 REFERENCES Bunker, F. StP. D., Ma
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Speedie, C.D., Johnson, L.A. and Wi
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Table A1.1 Positional and depth inf
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Date Station Time Latitude Longitud
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Tow Id no Tow Data point Date Tape
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Tow Id no Tow Data point Date A12 2
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Tow Id no Tow Data point Date A149
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Tow Id no Tow Data point Date A180
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Table A1.4 Brief habitat descriptio
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Site No. Date Habitat Id (Site No:H
Page 125 and 126:
Site No. Date Habitat Id (Site No:H
Page 127 and 128:
Table A1.5 Species recorded (matrix
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Species MCS Code Chondrus crispus Z
Page 131 and 132:
Species MCS Code Parasmittina trisp
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Species MCS Code Suberites ficus C2
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Species MCS Code Laminaria hyperbor
Page 137 and 138:
Species MCS Code Nemertesia ramosa
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130 Species MCS Code A 1 2 _ 1 A 1
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Species MCS Code Dive 1.1 Dive 2.1
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Appendix 2 Macrofaunal and sediment
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Table A2.2 Sediment type Medium peb
Page 151 and 152:
Taxa MCS Code Harmothoe antilopes P
Page 153 and 154:
Taxa MCS Code G 01 G 02 G 03 G 04 G
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Taxa MCS Code G 01 G 02 Petta pusil
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Table A2.4 Results of univariate an
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Figure A2.3 Bray-Curtis similarity
Page 167 and 168:
Table A3.2 Species recorded from co
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Table A3.4 SIMPER analysis of the c
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Table A4.1 Log of photographs taken
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File Name Subject Site Name Island
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File Name File size Folder Site No
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File Name File size Folder Site No
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Table A4.3 Diver video log, 2010 So
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