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

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Tow Id no Tow Data point Date Tape No/DVD No Depth In - Out (m bcd) Notes Biotopes 46.3 06/08/2010 D1_Canna_20100806_4 Zostera plants - only ones seen on this track. Then scattered algae again Recording from 53:35:41, 10 m, 17:16. SS.SMp.SSgr.Zmar DD1_46.4 06/08/2010 D1_Canna_20100806_4 Edge of Zostera patch with more beyond. SS.SMp.SSgr.Zmar 46.4 06/08/2010 D1_Canna_20100806_4 Onto sand and out of shelter of reef - no Zostera. SS.SSa.IFiSa 46.4 06/08/2010 D1_Canna_20100806_4 4 Sand and scattered algae. SS.SSa.IFiSa 46.4 06/08/2010 D1_Canna_20100806_4 4.3 Small patches of Zostera. Edge of bed - very patchy Zostera. SS.SMp.SSgr.Zmar 46.4 06/08/2010 D1_Canna_20100806_4 4.7 Dense Zostera. End of tape. SS.SMp.SSgr.Zmar DD1_47.1 06/08/2010 D1_Canna_20100806_3 12.9 - 14.9 M01 26/09/2010 18.0 M02 26/09/2010 20 - 26 M03 26/09/2010 25 - 25.5 M04 26/09/2010 26 M05 26.0 M06 26/09/2010 21 - 20 M07 26/09/2010 24.0 A12 21/09/2010 A12 21/09/2010 179 - 196.5 211 - 192 Shelly sand. Laminaria saccharina frequent. Species: Laminaria saccharina, Gracilaria gracilis, Desmarestia aculeata. Rock and boulders with foliose algae and coarse sand. Kallymenia reniformis, Delesseria sanguinea, Laminaria saccharina, possible maerl. Drifted too shallow for maerl search. Boulders and cobbles with foliose algae. Delesseria sanguinea, Nemertesia antennina, Caryophyllia smithii, Echinus esculentus, Parasmittina trispinosa, Labrus mixtus, Munida rugosa, Necora puber. Bits of maerl between boulders. Moved onto gravel/cobble with Pomatoceros sp. and then maerl and pebbles. Cobbles and maerl. Pomatoceros sp., occasional algae, Necora puber, Marthasterias glacialis. Cobble and maerl. Small squat lobsters (same as those seen in grabs), Munida rugosa, Pomatoceros sp., ?Cancer pagurus. Cobble, pebble and maerl. Pomatoceros sp., Munida rugosa, Nemertesia ramosa, Cancer pagurus. Maerl and pebbles in waves/ridges. Occasional small boulders. Sediment heavily excavated by crabs. Nemertesia antennina, Nemertesia ramosa, Delesseria sanguinea, Scinaia sp., 2 spot gobies. Cobbles with patches of maerl. Foliose red algae, Labrus mixtus, Halecium halecinum, Nemertesia ramosa, Pomatoceros sp., Nemertesia antennina, Heterosiphonia plumosa. Muddy sand, cobbles and boulders and some bedrock. Echinus escuentus, Urticina eques, Flustra foliacea, Metridium senile, Munida rugosa, Alcyonium digitatum, Nemertesia ramosa, Securiflustra securifrons, ?Parazoanthus anguicomus, Pomatoceros sp., Porania pulvillus, Pagurus prideaux, Sabella pavonina, Inachus sp., Luidia ciliaris, Henricia sp., frequent small fish, Macropodia sp. Muddy gravel plain with pebbles. Henricia sp., Pomatoceros sp., Urticina eques, Munida rugosa, Cancer pagurus, Metridium senile, Echinus esculentus, Neptunea antiqua, Sabella pavonina, Aequipecten opercularis, possible Atrina @ 13:22 and 13:24. SS.SMp.KSwSS.LsacR SS.SMp.Mrl.Pcal IR.LIR.K.LhypLsac IR.HIR.KFaR.FoR SS.SMp.Mrl.Pcal SS.SMp.Mrl.Pcal SS.SMp.Mrl.Pcal SS.SMp.Mrl.Pcal SS.SMp.Mrl.Pcal SS.SMp.Mrl.Pcal IR.HIR.KFaR.FoR CR.MCR.EcCr.FaAlCr SS.SMx.CMx.ClloMx 101
Tow Id no Tow Data point Date A12 21/09/2010 Tape No/DVD No Depth In - Out (m bcd) 192 - 176 A12 21/09/2010 173.4 Notes Muddy gravel with Atrina fragilis - large shells providing attachment for hydroids and sponges. Atrina seen at intervals of several metres. Dead shells also present. Dogfish, ?Iophon sp., Polymastia mamillaria, Salmacina dysteri, Ophiura sp., Inachus sp., Luidia ciliaris, Cerianthus lloydii, ?Ophiocomina nigra. Much sandier sediment with fewer pebbles. Ophiocomina nigra, Luidia ciliaris, Atrina fragilis, Pagurus prideaux. Moved onto some cobbles with Iophon type sponges, Tubularia indivisa, Alcyonidium diaphanum, Biotopes SS.SBR.SMus.Afrag SS.SBR.SMus.Afrag Porania pulvillus, Sabella pavonina. A12 21/09/2010 179.8 Rock beneath sediment, exposed in places. SS.SBR.SMus.Afrag A12 21/09/2010 185.8 Dead Atrina shells. SS.SBR.SMus.Afrag A12 21/09/2010 190.3 More live Atrina. SS.SBR.SMus.Afrag A12 21/09/2010 192.5 - 202.6 A lot of mixed dead shell, Asterias rubens, Salmacina dysteri colonies. SS.SBR.SMus.Afrag A52 21/09/2010 200 Shelly pebbly muddy gravel with Cerianthus lloydii, Urticina eques, Pomatoceros sp., frequent Sabella pavonina, Luidia ciliaris. SS.SMx.CMx.ClloMx A52 21/09/2010 215 Bedrock ridge then back to gravel. CR.MCR.EcCr.FaAlCr A52 21/09/2010 208.7 Mixed shelly gravel. Urticina eques, Inachus sp., Atrina fragilis, Echinus 209 - esculentus, Aequipecten opercularis, Neptunea antiqua, Ophiocomina 144 nigra, Salmacina dysteri, dogfish, Inachus dorsettensis, Munida rugosa. SS.SBR.SMus.Afrag A64 21/09/2010 231 - 218 Well sorted muddy sand. Atrina present at the start. Ophiura ophiura, Pagurus prideaux, Adamsia palliata, possible brittlestar arms in sediment, Echinus esculentus. Atrina frequent in small groups. Hydroids and sponges on shells. Sabella pavonina . SS.SBR.SMus.Afrag A64 21/09/2010 227.0 Sediment more mixed, occasional small boulders. SS.SMx.CMx.ClloMx A66 21/09/2010 232.0 Firm sand, Ophiocomina nigra, bivalve siphons. Frame streaming in the tide; site abandoned. Firm sand Muddy sand and cobbles then moved onto rippled sand with less A79 21/09/2010 pebble/cobble and some holes & burrows. Ophiocomina nigra and Atrina 223 - fragilis common from the start. Densest Atrina so far. ?Caryophyllia 156 smithii, Inachus sp., Munida rugosa, Neptunea antiqua, ?Anemonactis, Cancer pagurus. SS.SBR.SMus.Afrag A120 21/09/2010 188 - 91 Mixed muddy gravel and then more cobbles and boulders. Tow stopped as umbilical lying up the steep slope (camera drifting ahead of umbilical). Pagurus prideaux, Urticina eques, Atrina fragilis, Munida rugosa, Sagartiogeton (orange). Luidia ciliaris, Solaster endeca, Sabella pavonina, Echinus esculentus, Cerianthus lloydii, Inachus sp., fish indet. SS.SBR.SMus.Afrag CR.MCR.EcCr.FaAlCr 102
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Scottish Natural Heritage Commissio
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COMMISSIONED REPORT Summary Marine
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Contents Page no. 1 Introduction ..
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Page no. Figure 28 Basking shark ho
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1 INTRODUCTION 1.1 Background The S
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Rum has a far more complex structur
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In 1993 an SNH team conducted remot
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Richardson et al. (2004) showed tha
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2 METHODS 2.1 Sampling strategy The
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Figure 6 Shallow water video statio
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Figure 8 Video stations surveyed in
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Each discrete grab sample was empti
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Following the survey, the infauna w
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Table 2 Biotopes identified in the
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Figure 11 2010 survey coverage off
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Circalittoral sandy mud (SS.SMu.CSa
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Description The distribution of the
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Figure 16 Division of the megafauna
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Some L. saccharina forest (IR.LIR.K
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Rhodophyllis werneri and Scinaia in
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Plate 8 A northern sea fan Swiftia
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Zostera marina/angustifolia beds on
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This is consistent with infaunal co
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the fan mussels ranged from an esti
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Plate 13 A small basking shark in C
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Distribution Depth range: 72 - 21
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Figure 31 Other species of interest
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coverage predictive biotope distrib
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4 DISCUSSION This section presents
Page 60 and 61: Table 4 Summary of the assessment o
Page 62 and 63: The burrowed mud supported langoust
Page 64 and 65: in areas where it is protected from
Page 66 and 67: Table 6 Summary of a preliminary as
Page 68 and 69: 5.2 Future data review and biologic
Page 70 and 71: Ingle, R.W. (1996). Shallow-water c
Page 72 and 73: Appendix 1 Drop-down video and dive
Page 74 and 75: Date Station Time Latitude Longitud
Page 104 and 105: Table A1.2 Summary notes (biologica
Page 106 and 107: Tow Id no Tow Data point Date Tape
Page 112 and 113: Tow Id no Tow Data point Date A123
Page 120 and 121: Table A1.3 Summary of sampling unde
Page 122 and 123: Site No. Date Habitat Id (Site No:H
Page 128 and 129: Species MCS Code D D 1 _ 2 D D 1 _
Page 130 and 131: Species MCS Code Suberites ficus C2
Page 132 and 133: Species MCS Code Cryptopleura ramos
Page 134 and 135: Species MCS Code Scrupocellaria Y83
Page 136 and 137: Table A1.6 Species recorded (matrix
Page 138 and 139: Species MCS Code A 1 2 _ 1 A 1 2 _
Page 140 and 141: Table A1.7 Species recorded (matrix
Page 142 and 143: Species MCS Code Dive 1.1 Dive 2.1
Page 148 and 149: Table A2.1 Positional and depth inf
Page 150 and 151: Table A2.3 List of taxa identified
Page 152 and 153: Taxa MCS Code G 01 G 02 G 03 G 04 G
Page 158 and 159: Taxa MCS Code G 01 G 02 G 03 Diasty
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Taxa MCS Code G 01 G 02 G 03 G 04 G
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Taxa MCS Code G 01 Ascidiella sp. Z
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Figure A2.1 Bray-Curtis similarity
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Appendix 3 Macrofaunal and sediment
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Table A3.3 Results of univariate an
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Appendix 4 Photo and video logs - 2
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File Name Subject Site Name Island
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Table A4.2 Drop-down video log, 201
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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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