1 / 42

University of Liverpool

Dinocysts in eutrophic, stratified Black Sea & Saanich Inlet estuaries vs. upwelling waters off California & Baja Cfa. Peta Mudie. Fabienne Marret. University of Liverpool. André Rochon. Anna Gaponova. Odessa National University. Creeping dead zones. Don River.

vail
Télécharger la présentation

University of Liverpool

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dinocysts in eutrophic, stratified Black Sea & Saanich Inlet estuaries vs. upwelling waters off California & Baja Cfa Peta Mudie Fabienne Marret University of Liverpool André Rochon Anna Gaponova Odessa National University

  2. Creeping dead zones

  3. Don River Dnieper Dniester Eutrophic Silled Basins 45 N Danube Delta Black Sea 50 N 40 N Case A. Mediterranean Black Sea Fraser Delta Case B. N. Pacific Saanich Inlet (fjord) 45 N

  4. CASE C: Eastern North Pacific upwelling Productivity California Current

  5. A. Black Sea study region, showing bathymetry, Mediterranean Basins & Aegean-Marmara- Black Sea corridor Black S. Atlantic Adriatic Aegean S. Gibraltar Marmara S. Ionian S. Alboran S. E. Mediterranean

  6. Black Sea circulation and salinity

  7. Circulation, nutrients and oxygen supply

  8. Andre’s SEMs and Lingulo Operculodinium centrocarpum Lingulodinium

  9. Dnieper Danube Sakarya

  10. Black Sea transects Marmara Sea transects

  11. Deep time - Marret assemblages Gonyaulacoids Dinocyst relative abundance & occurrences MAR02-45, 69 m b.s.l (Marret et al., and Hiscott et al, Quaternary Int. v. 71, 2009)

  12. 1 2 3 4 5 6 8 9 7 10 11 12 13 14 GONYAULACOID DINOCYSTS. 1-4, 14 M05-4G.1 Spiniferites bentorii; 2. Spiniferites mirabilis; 3,4.Spiniferites ramosus - 3 Hi focus, dorsal view,; 4. mid focus on spiny processes; 5,6. M18; Alexandrium cyst-forms; 7. L. machaerophorum (M03-13,790); 8,9 Spiniferites sp.; 10. Spiniferites delicatus (M45, FM); 11,12 M18; ?Scrippsiella cyst form Mid; hi ; 13,14. M18. Unknown large cyst; 14. ?Cobricosphaeridium/copepod egg.

  13. 6 5 1 2 3 4 10 7 8 9 11 12 13 1.Impagidinium caspiense? 2. Spiniferites bentorii short spine 18M-1; 3-9 M05-13P 790 cm;3,4 Gonyaulax apiculata; 5. Gonyaulax sp. 6. Pyxidiniopsis psilata, mid; 7. Spiniferites cruciformis F.1 vv 13P, 790; 8,9. S. cruciformis; 2 a.vv; b. dv; 10.Spiniferites cruciformis F.3 14M-1; 11-13.?Invertocysta sp. 11 Hi dv; 12. lo vv; 13 mid

  14. 1 2 4 3 8 5 6 7 13 10 11 12 Q.c. M18 PROTOPERIDINIOIDS MAR05-4G. 1-5. Peridinium ponticum;, #1 & 3 = high focus, dorsal view; #2,4,5 mid focus; 6,7. Xandarodinium xanthum dorsal view; 6 hi focus, 7 mid focus; 8,13. Votadinium calvum 8.45T; 13.18M-1; 9. Quinq.concreta 1034B; 10,11. Quinquecuspissp. (FM);13. ?Lejeunecysta 9

  15. POLYKRIKOIDS: 1. Polykrikoskofoidii ; 2. ?Polykrikos sp. 14M-1 M18 M18 1 2 Other GYMNODINIOIDS: chasmic archeopyle 3a 3b 4 Other non-dinocyst NPP Ostracod jaw Hexasterias Concentricystes Gloeotrichia Cosmarium M18

  16. Ongoing Lingulodinium story • Calibration transects MAR97-5, Mudie et al., Mar.Mic. 2002 4.0 4.1 5.2 8.5ka 8ka Verlaye et al., Palynology

  17. Black Sea vs. eastern Pacific

  18. Eastern North Pacific region: Saanich Case History Georgia Strait Vancouver Island Juan de Fuca St.

  19. Mudie, Rochon and Levac, 2002: Paleo3 v. 180:159-186

  20. 1035B SAANICH INLET: SEM images of A. Rochon 2 3 4 5 1 6 7 8 9 10 11 12 13 14 15 .1. O.centrocarpum; 2-4 Quinquecuspis; 5. S. nephroides; 6. L.polyedrum; 7.Unknown1; 8,9 B. simplex; 10. V. calvum; 11 Cymatiosphaera; 12,13 Spiny brown; 14. Gymnodinium sp.; 15. Polykrikos hartmanii

  21. Fall SAANICH INLET SPM 1986-1987 Summer

  22. Saanich Core 10

  23. Eastern North Pacific region Saanich CLMR1,2 CLMR2 RGS487

  24. CLMR 167: 35.5 N, 1600 m Quinquecuspis Dubridinium Q. concreta B. cariacoensis Ech. delicatum? ?Ech. bispiniformum Trucate process L. polyedrum ?Echinidinium sp. B. americanum Polykrikos “fins” UK Gymnodinioids Scolecodont 1 ?Mandible Egg capsule 2 Egg capsule 1 Reticulate ?egg case ?Cobricosphaeridium

  25. Jy SPM ROWS 1 and 2: > 35N Saan. & CL170(1545m) 80% protoperidin. hi vv lo dv BAJA CALIFORNIA SHELF – UPPER SLOPE Dubridinium P. zoharyi T. vancampoae L. polyedrum dv RGS 51 404m RGS 47, 370 m RGS 14:550m RGS 19A, 20:>1000m Echinidinium?

  26. RGS0487-19, 23.25N, 1222m Sp. ramosus Hi Mid ?Achomosphaera Lo Mid Hi L. polyedrum ?Bitect. spongium ?Operculodinium O. janducheyni Sp. bentorii Sp. elongatus Lo Mid Sel. nephroides ?Echinidinium Gymnodinium Brigantedinium Dubridinium Spiny egg case Microforam linings Unique Unknown Copepod? Large reticulate ?egg case

  27. Black Sea vs. eastern Pacific? S, T and density Nutrients

  28. Lingulo – S/T30 - Black Sea vs. Pacific Saanich Inlet (U. Vic. Venus) Sta. Barbara Basin (Sholkovitch & Gieskes) Black Sea M14

  29. Table & pies

  30. FAD’s: G. polyedra (7.8 ky) Scrippsiella Gymnodinium catenatum (~5 ky) Gonyaulaxalexandriense (~3 ky) & 25 other non-cyst HAB species

  31. POLYKRIKOIDS: 1. Polykrikoskofoidii ; 2. Polykrikos/Cochlodinium sp. 14M-1 M18 M18 P. kofoidii 2 1 GYMNODINIOIDS: chasmic archeopyle 3a 3b 4 Q.c. M18

  32. M18

More Related