12th International Conference on Harmful Algae

More documents

Recommendations

Info

INTERNATIONAL SOCIETY FOR THE STUDY OF HARMFUL ALGAE12 th <strong>International</strong> <strong>Conference</strong> on Harmful Algae, Copenhagen, Denmark, 4-8 September 2006species can reach in bi-culturingexperiments.PO.07-15The role of nutrients on springand summer algal blooms in theEast China SeaSession: PO.07 - Ecology andoceanographyJiangtao Wang, Chuansong Zhang,Xiaoyong Shi, Xiulin WangOcean University of China, QINGDAO,ChinaDiatom and dinoflagellate bloomswere investigated in the East ChinaSea 2002-2005. When diatomblooms started in spring, thephosphate concentration decreasedfrom about 0.6 μM to 0.2 μM, whichsuggests that phosphate mighthave been the limiting factor for thediatom blooms. At the succeedingdinoflagellate bloom, the phosphateconcentration decreased to 0-0.1μM. Prorocentrum donghaiense Luwas capable of growing even atphosphate concentrations below 0.2μM.Nitrate concentration showed agradual decrease, concomitant withthe algal bloom development. At theend of Prorocentrum donghaiensebloom, the average nitrateconcentration was about 1.5 μM inthe surface water. We hypothesizedthat dinoflagellate blooms could notbe maintained when nitrateconcentrations were lower than theabove-mentioned level.It was concluded that phosphateconcentrations are essential fortriggering the blooms, nitrateconcentrations determine theduration and scale of the bloom,and silicate concentration and Si/Nratios influence which species willbe dominant. By determiningnutrient concentrations, algalblooms in the East China Sea canbe forecasted relatively accurately.PO.15-22Application of a MultiparameterMonitoring System (YSI) instudies of large-scale red tidesin the East China SeaSession: PO.15 - MonitoringYF Wang 1 , DD Zhu 2 , MJ Zhou 1 , RC Yu 11 Institute of Oceanology, CAS, QINGDAO,China2 Second Institute of Oceanography, SOA,HANGZHOU, ChinaThe multiparameter monitoringsystem (from YSI), coupled with aglobal positioning system (GPS)and an automatic meteorologicalstation, has been used in fieldcruises to study the large-scale redtides in the East China Sea,supported by the on-goingCEOHAB project. Parametersincluding chl.a, temperature,salinity, turbidity, dissolved oxygen,pH, and depth were recorded withthe YSI system during the cruisesduring the last five years. Theresults suggested that there weregood correlations between themeasured chl.a levels by thesystem and the analytical results ofchl.a from fluorescencespectrometer and cell counting bymicroscopy, during the red tides ofProrocentrum donghaiense, Kareniamikimotoi, Skeletonema costatum,and Thalassiosira sp. The spatialand temporal distribution pattern ofthe red tides, even the subsurfacethin layer distribution of highconcentrated microalgae, could bedepicted with the system. Data onchl.a, temperature, salinity anddepth derived from the system wereused successfully to elucidate thehydrological effects of watermasses and ocean currents on thedynamics of large scale red tides.303
INTERNATIONAL SOCIETY FOR THE STUDY OF HARMFUL ALGAE12 th <strong>International</strong> <strong>Conference</strong> on Harmful Algae, Copenhagen, Denmark, 4-8 September 2006Therefore, data from the YSIsystem could well support thestudies on the dynamics andmechanism of large scale red tidesin this region.PO.12-05Do you know this dinoflagellate?Session: PO.12 - Taxonomy and phylogenyJL Wolny 1 , MJ Garrett 2 , KA Steidinger 11 Florida Institute of Oceanography, SAINTPETERSBURG, FLORIDA, United Statesof America2 Fish and Wildlife Research Institute,SAINT PETERSBURG, FLORIDA, UnitedStates of AmericaDuring routine ballast watermonitoring for harmful algae wediscovered an unusualdinoflagellate. The cyst wasobtained by sediment sampling aballast tank of the cargo containership ‘Southern Fighter’, docked atthe Port of Tampa. In culture, thisdinoflagellate spends the majority ofits life cycle in a non-motile stage.The non-motile stage is twice thesize of the vegetative cell. It issmooth walled, with the exception ofthe apical pore area, and gathers inlarge clusters that are visible to thenaked eye. The vegetative cell is ascrippsielloid dinoflagellate with thefollowing plate tabulation: Po, x, 4’,3a, 7', 6c, 6s, 5’', 2''. The vegetativecell is characterized by a deeplyinvaginated and narrow 1’ plate,unique apical pore complex, anddeep sulcus. The vegetative cellshave been morphometricallycompared to Bysmatrum,Calciodinellum, Ensiculifera,Pentapharsodinium, Peridiniella,Peridinium, Protoperidinium, andScrippsiella with no definitive match,although they most resembleBysmatrum. We presume thisdinoflagellate is a benthic specieslike Bysmatrum, but it lacks theanterior intercalary plate patterntypical of that genus. The routineports of call for this ship, whereballast water exchanges took place,were Antwerp, Belgium, Terneuzen,Netherlands, and Uddevalla,Sweden.PO.10-06Interaction effects of nutrientlimitation and UV radiation onNodularia spumigena - anoutdoor experimentSession: PO.10 - Ecophysiology &AutecologyA Wulff 1 , M Mohlin 2 , V Lindberg 21 Göteborg University, GÖTEBORG,Sweden2 Marine Ecology, GÖTEBORG, SwedenNodularia spumigena is one ofseveral toxin-producingcyanobacteria in the Baltic Sea. Itproduces the hepatoxin nodularin, atumour promoter known to havekilled wild and domestic animals.Nodularia spumigena blooms occurduring late summer, a period withstrong light, calm weather andstable water-column stratification.Due to its ability to fix atmosphericnitrogen, N. spumigena does notdepend on this macronutrient in thewater. Instead it is generallybelieved that growth of N.spumigena is limited byphosphorus. In a mesocosmexperiment we will study theinteraction effects of N and Plimitation, and UV radiation.Cultures of N. spumigena areexposed to, or shielded from,natural levels of UV radiation in 5-Laquaria with and without N- and P-limiting conditions, repectively. Theexperiment will be run for ca 30days (July, 2006). Variables to beanalysed are related to growth andphotosynthetic activity as well as thecontent of nodularin and UVabsorbingcompounds.304
Page 1 and 2:
INTERNATIONAL SOCIETYFOR THE STUDY
Page 3 and 4:
Dear participantWelcome to Denmark
Page 5 and 6:
INTERNATIONAL SOCIETY FOR THE STUDY
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Page 253 and 254: INTERNATIONAL SOCIETY FOR THE STUDY
Page 303: INTERNATIONAL SOCIETY FOR THE STUDY
Page 355 and 356:
Page 357 and 358:
Page 359 and 360:
Page 361 and 362:
Page 363 and 364:
Page 365 and 366:
Page 367 and 368:
Page 369 and 370:
Page 371 and 372:
Page 373 and 374:
Page 375 and 376:
Page 377 and 378:
Page 379 and 380:
Page 381 and 382:
Page 383 and 384:
Page 385 and 386:
Page 387 and 388:
Page 389 and 390:
Page 391 and 392:
Page 393 and 394:
Page 395 and 396:
Page 397 and 398:
Page 399 and 400:
Page 401 and 402:
Page 403 and 404:
show all

12th International Conference on Harmful Algae

Create successful ePaper yourself

Delete template?

Save as template?