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180 Days FIGURE 3. Evolution des densites (et de leur ecart a la moyenne) des Nematodes dans les quatre premiers centimetres du sediment -- 0; Module pendant une periode de six mois. Temoin : faiblement pollue : o -.- o; Module fortement pollue : • • • Quel que soit le module considere, les densites de nematodes ont tendance a decroitre en circuit clos (Fig. 3). Cependant, il est possible de distinguer : - une periode initiale de deux mois environ ou les valeurs trouvees dans les bacs pollues sont generalement plus fortes que dans le temoin; - une periode ulterieure ou les densites dans ces modules contamines ont tendance a etre legerement plus faibles par rapport au temoin. II apparait done que la phase de pollution primaire serait caracterisee par une proliferation des nematodes (1,5 a 2 fois le niveau du temoin) mais que rapidement apparaitrait un declin lent (0,5 a 0,8 fois la valeur du temoin dans le bac le plus pollue, 0,7 fois a une valeur <strong>com</strong>parable au temoin dans le bac faiblement pollue). Ces observations sont <strong>com</strong>patibles avec celles relevees dans le milieu naturel (Elmgren 1980 a; Boucher et al. 1981). 234
L'evolution des Copepodes harpacticoides (Fig. 4) montre au contraire un effet depressif des hydrocarbures sur le niveau de densite du peuplement. Les abondances observees dans le temoin restent toujours superieures a celles des bacs polities malgre des fluctuations importantes des densites au cours de 1 'experience. Dans le bac le plus pollue, les densites de Copepodes deviennent faibles apres le 21eme jour. 20 40 00 00 100 120 140 100 IIODayi FIGURE 4. Evolution des densites (et de leur ecart a la moyenne) des Copepodes harpacticoides dans les quatre premiers centimetres du sediment pendant une periode de six mois. Temoin : 0; Module faiblement pollue : o -.- o; Module fortement pollue : • •• Evolution du rapport Nematodes/Copepodes L'utilisation de ce rapport dans les etudes de pollution vient recemment d'etre proposee par Raffaelli et al (1981). Cette proposition seduisante derive de deux considerations : - d'une part les Copepodes sont apparemment plus sensibles que les Nematodes au stress des pollutions; - d'autre part l'utilisation de la meiofaune dans les etudes d 1 impact ne se justifie que si celle-ci repond avant que les effets ne deviennent visibles sur la macrofaune. L'un des obstacles majeurs a 1' interpretation de cet indice reside dans le fait que celui-ci est correle negativement avec la mediane granulometrique du sediment. L' experimentation permet d'eliminer ce facteur qui obscurcit 1' interpretation des resultats. 235
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Na/JA/CNfiXO 0
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ECOLOGICAL STUDY OF THE AMOCO CADIZ
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Preface TABLE OF CONTENTS I. Physic
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PREFACE At approximately 11:30 p.m.
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In November 1979, an international
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CNEXO-NOAA Joint Scientific Commiss
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MICROBIAL HYDROCARBON DEGRADATION W
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Chemical Hydrocarbon Analyses Perfo
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147, 156, 170, 178, 184, 192, 198,
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The microbial hydrocarbon biodegrad
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TABLE 7. Biodegradation of 9-methyl
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The detailed gas-chromatographic an
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TABLE 13. Hydrocarbon concentration
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TABLE 17. Hydrocarbon concentration
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TTTl n rrffl KMIIMCi WOU^I ! I .Dm.
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o z o 5- 3- UJ >4 UJ - cc 2- I ll F
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z o 4. 3_ 2- t- 1 _ < K o z o 1_ o
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CONCLUSIONS Microbial degradation a
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LIQUID 5AK?lE CCNTftit-'JGAriOH + F
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The saturated hydrocarbons were mos
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acteria of the genus Moraxella, ind
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2. CONTINUOUS CULTURES In continuou
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INTRODUCTION All fate and effects s
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2.1 Sediments and Sediment Cores (E
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TABLE 2. Focus of GC/MS analyses. S
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T.ssue Semoie S50 grams Wet) HI Dis
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ae = E3£\CE '.tC'-SSE S* -•* 3 S
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TABLE 3A. Weathering of AMOCO CADIZ
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fli-Liftim Mi.u".- i I 7 1 1 5 6 /
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3.2 Surface Sediments (Atlas, Unive
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_l I I I I I L_ a •BIOGENIC P •
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TABLE 6. Replication of hydrocarbon
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-I—i i i i i i i i—i—i—I t
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t i I hn I 94 n,, , i i I ABCOEFGHI
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C30BT:177ng g 1 * ? » I—I—I I
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marker compounds, the C3 dibenzothi
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TABLE 8. AMOCO CADIZ sediment sampl
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TABLE 11. St. Michel en Greve/Lanni
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TABLE 14. L'Aber Benoit GC/MS resul
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3.4 Sediment Cores (Ward, Montana S
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' TABLE 16. L'Aber Wrac h sediment
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!•[ 220 = f occEMeea 1979 AUGUST
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10 120 1000 no g 400 600 ALU ISO AL
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The AMC-4 cores appear dominated by
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3.5 Oysters and Plaice (Neff, Batte
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The GC traces for the impacted oyst
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m/e m/8 m/e Lja.i t: J b l| c I "II
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-* I I I I ABCDEFGH IJ K LMNOPQRSTU
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AROMA IK S SATURATES 4-1 FIGURE 3.7
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TABLE 20. AMOCO CADIZ chemistry pro
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TABLE 24. Results of ISTPM fish ana
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3.7 Seaweed and Sediments (Topinka,
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ma. w p FIGURE 3.81. HC-4-1 seaweed
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9) Oysters were initially heavily i
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STUDIES OF HYDROCARBON CONCENTRATIO
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sample 1 - extraction (toluene meth
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TABLE 1. Hydrocarbon content of lie
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TABLE 3. Chromatographic analysis o
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1A _jiU' IB •JlIw '3 L Pr i 2A 2B
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CD o 0. - f 2104 "*. vli . ! i » -
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A IB A HC. SATURES S M C C [HiLJJL
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The relative contents of saturated
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31-03-78 22-11-78 20-06-79 17-1-80
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PORTSALL 23-3-78 FPD AW 22-11- 78 F
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31-03-78 22-11-78 20 - 06 - 79 17-
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STATION 6 i—r 3400 3000 1600 31-0
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PORTSALL 23-3-78 FPD AW 22-11-78 FP
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Photometry Detection (FPD) as well.
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1 r PIODUI7S F.ECUPEF.ES BRUT DECAN
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The chromatogram of the saturated h
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etween the end of March and early A
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certain chemical species which are
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It should be noted that a sample ta
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REFERENCES CITED Aminot, A., 1981,
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affected a very large section of th
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OIL POLLUTION IN THE WESTERN ENGLIS
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atio of more than 100 is an index o
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TABLE 4. Comparison between hydroca
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FIGURE 7. Sampling stations in the
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IBB 000,- HC CPPM] ib me. lass. 100
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ACKNOWLEDGMENTS We would particular
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METHANE-PRODUCING BACTERIA POLYMERI
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AMOCO CAQiZ ® BE" 'LOUT U A8ER .^"
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and methanolic (f~) fractions for o
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14 99%) from New England Nuclear; n
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concentrations were extremely low (
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(A) Oiled Estuary Mudtiat cms " i l
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TABLE 3. Aromatic Hydrocarbons in B
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TABLE 4. 11 *C0 2 + 1
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IGO 3-6 cm slurry IGO 3-6cm slurry
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FRESH OIL hk UjlAdU-uJM^vA. i^w*XaA
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TABLE 7. Effect of AMOCO CADIZ Mous
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14 TABLE 10. Effect of Hydrocarbons
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pounds were, however, noted at dept
Page 200 and 201: effects of additional heavy oiling.
Page 202 and 203: Centre Nationale pour ' 1 Exploitat
Page 204 and 205: S^rensen, J., D. Christensen, and B
Page 207 and 208: REPONSES DES PEUPLEMENTS SUBTIDAUX
Page 209 and 210: Les nouvelles populations caracteri
Page 211 and 212: TABLEAU I. L' evolution des peuplem
Page 213 and 214: B Dui © ® Du 2 © Sf FIGURE 4. Ev
Page 215 and 216: populations initiales durant la pre
Page 217 and 218: vs w DU w VS/ FV W DU,B SHV W ' \ /
Page 219: Connell, J.H. et R.O. Slatyer, 1977
Page 222 and 223: Les unites cenotigues correspondant
Page 224 and 225: les peuplements de la baie de Morla
Page 226 and 227: R, E c a ~ a H CO 3 -> E ;j cu R. a
Page 229 and 230: -
Page 231 and 232: leurs du meme ordre qu'avant la pol
Page 233 and 234: N/m 10 10 10 10 • -* Cycle normal
Page 235 and 236: 3.2.3.2) Peuplement des sables tres
Page 237 and 238: Richesse specifique (fig. 10) D'avr
Page 239 and 240: N.m-2 300^ 250 200- 150 100 50 -•
Page 241 and 242: propor tionnels aux quantities d'hy
Page 243 and 244: Den HARTOG, C. 8 R.E.W.H. JACOBS, 1
Page 245 and 246: ETUDE EXPERIMENTALE D'UNE POLLUTION
Page 247 and 248: I. Pump2 Pumpl HL_Q I § i I ,1 1 I
Page 249: 3000 1500 1000 - FIGURE 2. Evolutio
Page 253 and 254: La sensibilite de cet indice semble
Page 255 and 256: La biomasse est sensiblement plus f
Page 257 and 258: BIBLIOGRAPHIE Andrassy, I., 1956, D
Page 259: Pearson & Rosenberg, 1978, Macroben
Page 262 and 263: INTRODUCTION Dans le cadre du suivi
Page 264 and 265: Pigments chlorophylliens RESULTATS
Page 266 and 267: apparente en decembre 1978 et aout
Page 268 and 269: Pheo (vg/q ) Ca (pg/g) 5 5 to 15 \
Page 270 and 271: Les conditions meteorologiques (fac
Page 272 and 273: TABLEAU 2. Evolution temporelle des
Page 274 and 275: On peut aussi expliquer , du moins
Page 276 and 277: A Brouennou, quatre groupes ecologi
Page 278 and 279: un groupe de sabulicoles epi- et en
Page 280 and 281: schema des mecanismes regulateurs d
Page 282 and 283: Gargas , E., 1970, Measurement of p
Page 285 and 286: LONG-TERM IMPACT OF THE AMOCO CADIZ
Page 287 and 288: The first type is due to the direct
Page 289 and 290: RESULTS Tissues from 134 specimens
Page 291 and 292: Table I. Distribution of patholocie
Page 293 and 294: a. B o r— IT) —
Page 295 and 296: antenai, and longitudinal spiral ro
Page 297 and 298: epresented an inflammatory response
Page 299 and 300: lateral nuclei were present. The ci
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There was also some indication, bas
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This method, based on the glucose o
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Table 4 . Concentrations of total a
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Table 6 . Concentration of aliphati
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sediments which is dominated by hig
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Table 9 . Concentration of aromatic
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COn,pOUnd Table 11 . Concentration
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Table 12. Concentrations of total a
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. Table 14. Concentration of alipha
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Date/Sample April 1979 (13) Whole F
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Table 17 . Concentration of total l
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laboratory (Wardle, 1972). In the l
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Table 23. Concentration of ascorbic
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Table 25 • Concentration of free
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ange. Dominant tissue-free amino ac
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Table 28 Concentration of free amin
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Table 30. Concentration of free ami
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Table 32 . Concentration of free am
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oil-polluted Abers and from nearby
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REFERENCES CITED Anderson, J.W. , 1
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McCain, B.B., H.O. Hodgins, W.D. Gr
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RETABLISSEMENT NATUREL D'UNE VEGETA
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INTRODUCTION Le retablissement d'un
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Nous distinguerons alors les phases
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Situation 3) Territoires fortement
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Plus precisiment le codage correspo
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Figure 3. Marais 6-Etat en 1979 (le
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Figure 5. Marais 6-Etat en 1981 (le
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Commentaires Mis a. part un petit n
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- Marais 3. Ce transect, situe en m
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TRANSECT 'VVATS 5 Figure 8. Transec
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05 (11 O ; cd 00 i I i I i I I I I
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'igure 9 Transect permanent-Marais
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Commentaires - Estuaire de Kerlavos
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1 - appel a la notion de compositio
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Figure 12. T'orphologie comparee d'
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- les plantes survivantes -initiale
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General RESTORATION OF MARSH VEGETA
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FIGURE 1. Marsh west of the bridge
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1979 Plantings Based on our prelimi
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FIGURE 6. Digging Puccinellia along
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FIGURE 10. A 6.5-cm diameter soil a
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In September, we made 9 additional
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FIGURE 16. Creek bank without veget
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FIGURE 19. Eroding creek bank at He
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'^^Wr ./".#" -•: rst^ s8H.*r FIGU
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FIGURE 26. Experimental planting es
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Elevation All elevations are given
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FIGURE 27. Map of study area on nor
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Keri&vos FIGURE 30. Map of study ar
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^~~ -
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TABLE 4. Survival of two types of t
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area (12 m 2 ) , and was an excepti
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TABLE 8. Aboveground dry weight of
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,^-^ FIGURE 37. Several 2-year old
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FIGURE 38. Experimental planting at
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fr J1MI FIGURE 40. Experimental pla
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Puccinellia were planted at one of
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FIGURE 44. Preliminary planting of
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Transplant Time Requirement It is d
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is about 540 cm^ or over 20 times t
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FIGURE 53. Plant shown in Figure 51
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FIGURE 56. Experimental planting of
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ACKNOWLEDGEMENTS Cooperation with o
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LITERATURE CITED Baker, J. M. , 197
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ETUDES MICROBIOLOGIQUES ET MICROPHY
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HMMME NTHWL SWIRLING SITES Referenc
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dans les chenaux (carottes de 30 a
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degres d'une part, et entre les sta
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Schorres peu polities, CI et Bl CI
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L'activite enzymatique dans cette s
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chenaux : Conclusions sur le biotop
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Les schorres Les schorres, par cont
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stations TABLEAU 2 IIYDROfARUUKES D
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Ci 1 12-14 )uiH 79 2-7 oct 79 23-25
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E •" * — lissMs .-*. K V- v..
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FIGURE 8 Evolution temporelle des c
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150- 100 50- 150- 100- 50 446 *o
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REFERENCES BIBLIOGRAPHIQUES Atlas,
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1964-1982, COMPARAISON QUANTITATIVE
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453
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EFFETS DE LA MAREE NOIRE SUR LES PE
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ESPECES En 1980, on a pu cartograph
Page 475 and 476:
3- EVOLUTION GLOBALE II semble s'am
Page 478 and 479:
COUREE DE L EVOLUTION DES BIOMASSES
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464
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CO 00 466
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468
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470
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472
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I s
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476
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Q) 1
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