A biological study of Durvillaea antarctica (Chamisso) Hariot and D ...

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82 (d) Australia: D. potatoY'UflJ is the only species tha.t has been recorded gro\'IIing in Australia. Reports of D. antarctica are of drift specimens (Moore and Cribb 1952:1100; Kenneally 1972:78) 0 D. potatol'1Am is to the southeast region on coasts that Bennett and Pope (1953) called cool temperate, Lucas (1936:81) gave the range as Tasmania and Vic·torian coastline bet.ween Cape !-1m·,e and Cape Northumberlcmd. Bennett and Pope: (1953) and Womersley (1959) described a Hider range on the mainland coast. According to these authors the species extends from Robe in South Australia to Bermagui in Ne\Il South Wales. There are various reports of D. potat~um on ~he Tasmanian \
83 (f) Chathctica. (a) Sea surface temperature~ In the coldest ~latel':S inha.bi ted by DurviUaea the min.illll.un tempera.tures are just above the fX'eezing point of seawa1:er (ca. ~3 t.o -{j°C) • In t.he warmest waters where it- grOivs~ the st!1lffilm:' mcDf.immn is 22,··23 0 C. Dw>vilZaea is fer·tile in Ninter, and :ion t.erms of th.e \'Iorld
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A BIOLOGICAL STODY OF AN'JlARCTICA
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j i "The seas: CCl1l1(2: running in
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v CHAPlEt( 7 8 9 10 t\ PPE ND ICES
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vii Fot' theil' effol"ts to obi;ain
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CHAPTER INTRODUCTION I acid and its
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1 CHAPTER TWO MATERIALS AND METHODS
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(c) Standing crop Nas measured as w
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7 the primary blade broke off. Furt
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9 four sites: Areas 5b and 6b at 'f
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1 t the rock surface. Area E (1 x 2
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13 ____ ~ __ 2_._2 Scale of concept
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15 added to the top of the tube. Th
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In addition, dai records of sea sta
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19 The series of low ridges absorbs
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Figure 2.1. LOCATION OF PRINCIPAL S
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Figur.e 2.3. TAU'l'UKU STODY AREA.
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T fine cracks D
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'to J ~" FMAMJ ASONDJ ASONDJ FMAMJ
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27 CH/\P A TAXONOMIC AND NOMENCI ..
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29 (i) Hol,dfast The external morph
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31 {c} The basic cellular arrangeme
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3.1 J03 TYPIFICATION (1) DUX'viUaea
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35 commanded on a scie:ntlfic voyag
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37 recently as 1921 (Cockayne 1921)
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stipe (less than 5 em long) and a h
Page 55 and 56: 41 A TeD spccimclI annotated on the
Page 57 and 58: 43 cortex (Figs 3.3a and 3.4e). Oth
Page 59 and 60: 45 and states, "SaY'cophYCU8 simple
Page 61 and 62: 47 holdfast,
Page 63 and 64: 49 Table 3.1 Differences between Du
Page 65 and 66: 51 General distribution: The Chatha
Page 67 and 68: 53 7 ~) (a) Stipitate lateral lamin
Page 69 and 70: (a) Laminaria po~oidea in the Lamou
Page 71: of D. Hook.fil. 1845. TCD .3 in (c)
Page 75: LAMINA SECTIONS OF HERBARIUM SPECIM
Page 79: =.at.:;;;.;;;:.,;;;;....:....;,., .
Page 83: (b) (c) (d) SECTIONS THROUGH THE ME
Page 86 and 87: II I J c d
Page 88 and 89: f end of lamina or differentiated m
Page 90 and 91: 66 that DurvilZaea extends several
Page 92 and 93: 613 numerous narrow channels. On th
Page 94 and 95: 70 from IVJLWS to a level between t
Page 96 and 97: 72 within 0,3-0.5 m of the band. Th
Page 98 and 99: 74 Some growing on crevices on the
Page 100 and 101: 76 level of stl/ards of D. ar/"l;ar
Page 102 and 103: 78
Page 104 and 105: 80 algae except for those in crevic
Page 108 and 109: 84 d~stribution at species, winter
Page 110 and 111: 86 several thousand miles. It is li
Page 112 and 113: 80 (cl D. antarctica extends no nor
Page 114 and 115: 90 The most southern tip of South A
Page 116 and 117: 92 islands. On Kerguelen and Crozet
Page 119: Figure 4.2. D. ANTARCTICA AT HEARD
Page 122 and 123: d e
Page 124 and 125: ~I 50
Page 126 and 127: WORLD DISTRIBUTION OF DlIRVILLAl!:A
Page 128 and 129: Figure 4.6. DISTRIBUTION OF D. ANTA
Page 130 and 131: 50 45 /" b WATER LOSS /0 EXPESSED A
Page 132 and 133: 102 In almost all the composite hol
Page 134 and 135: 104 confined to the merist.oderm, t
Page 136 and 137: 106 longe:r.: than D. anta:.r'ctica
Page 138 and 139: 108 This is not the only way that l
Page 140 and 141: 110 (iii) Cape form (Figs.3.9a,b: 5
Page 142 and 143: of antarctica across a 9 Sa 8 7 10
Page 144 and 145: 114 'rable 5,3 Measurements of D. a
Page 146 and 147: 116 Subsequent reg~neration of shor
Page 148 and 149: 118 at the entran.ce to l-'Iilford
Page 150 and 151: 120 with increasing latitude. The i
Page 152 and 153: 1mm
Page 154 and 155: t lOO,AU".
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30-60mins 2
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J I em IDem J ] 10 em ] IOcm 3-4 we
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f
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CJ) -0 I\) Q.. 60 50 Q 3 40 ~ ....
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Figure 5.9. CLIFF FACES AT TADTUKU.
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UNUSUAL STIPE FEATURES OF D. A GROW
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DEGREE OF LAMINA DIVIStON AND HONEY
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Figure 5.14. COMPARISONS OF SAMPLES
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135 CHAPTER SlX REPRODUCTION AND PH
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137 Hyphae invade the neck region o
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'I'he reproductive period of D. wil
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141 A large number of ova at 20°C
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143 released in each of the three s
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Figure 6.1. DEVELOPMENT OF CONCEPTA
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Figure 6.2. REPRODUCTIVE PERIODICIT
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147 CHAPTER SEVEN GROWTH AND MORTAL
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149 (i) Holes punched longitudinall
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4 lSI growth in the length for the
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153 Table 7.5 Frequency of D. antaY
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155 Holdfast diameter increB,sed at
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157 7.5 MORTJ.l.LITY (a) Mortality
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159 seasonal pattern simila~ to tha
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161 A similar of small plants there
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! 6.0~ 5.8 Total 5.6 Ie ngth 5.4 (
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120 100 E E ~ 8 c ~6 ~ +- (I) ..n I
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202 t 1 2 J1cm 3 11 1c
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A Perce:n increase in diameter x lO
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60 Percentage increase 40 in length
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70 60 Percentage increase 40 in len
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il10rease 20 ill rot!)1 length. r '
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mortality 3 .' ' A , ••••
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5 4 Percent mottality:1 per month h
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60 50 2 :3 Plant length (metras) 5
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175 total length closely resembled
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177 sampling error l , and to elimi
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179 of the shoreline; a procedure r
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Figure 8.1. SIZE DISTRIBUTION OF A
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Figure 8.2. size at different seaso
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F i2..ur e 8. 3 • SEASONAL VARIAT
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(a) STORM DAMAGE TO A D. WILLANA BE
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186 clumps of Pachyme~ia ZU8oria, G
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HIB (continued) Species sp. 5P, Zin
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190 On areas cleared during spring
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192 mlportant cause was probably pr
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194 recoLonis of D.anta .. cticc't
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196 (d) Numex~cal density: While st
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198 Although the standing crop of D
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200 however 1 the articulated coral
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SUCCESSION ON AREAS CLEARED IN SPRI
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Figure 9.2. GROWTH IN LENGTH OF REC
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ANTARCTICA: confidence limits. GRCW
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Figure 9.5. KAIKOURA. STIPE GROWTH
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Figure 9.7. STIPE GROWTH OF RECOLON
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Figure 9.9. change in the stipe pro
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Figure 9.12. CHAOOE IN S1 ZE DISTRI
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Figure 9.13. Growth of ~ua1l « 0.5
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Figure 9.14. EXPERIMENTAL REMOVAL O
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213 pathway of Du~vittaea sp. ALLOP
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215 'co d:tying conditions than D.
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217 appears to be gl:eatly influenc
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219 tide. From Bayle's Law 1 the bl
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221 buoyancy. A highly honeycombed
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223 of D. antaratiaa across 25° of
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22S Hasegawa (1962) and Kat ... ash
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5 ..· 7 years old. Some were still
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229 . or combinations of species, p
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231 Harvesters will not cut all sma
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233 10.10 THE RESOURCE RELATIVE TO
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235 10.11 SUMMARY (1) Four DurviZZa
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237 (17) The mean standing crop of
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RELATIONSHIP BETWEEN TIME OF HARVES
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241 Batham, E.J, (1965). Rocky shor
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243 DaNson, E. Y. (1966). Marine bo
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Hooker, J.D. and Harvey, W.H. (1843
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247 Kuehnemann, O. (1970). Algunas
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249 Moore, L.B. and Cribb, A.S, (19
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251 Skottsberg, c. (1941). Communit
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253 Will. H. (1890). internationaZe
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255 APPENDIX ONE (CONTINUED) (b) DA
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257 APPENDIX TWO DIS'I'RteUTION REC
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259 APPENDI)( THREE DISTRIBUTIONAL
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261 APPFNDIX FOUR DRIFT RECORDS OF
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264 (i) Boil the dried kelp in a sa
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A biological study of Durvillaea antarctica (Chamisso) Hariot and D ...

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