Knowledge

Cariaco Basin

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station in the eastern deep of the basin which is visited on a monthly basis to collect hydrographic, nutrient and primary productivity measurements. A suite of other measurements, including a sediment trap mooring, microbiological studies and current measurements are also conducted at this site. The
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Because of its anoxia, the Cariaco Basin has also a unique chemistry. Bacteria inhabit both the oxic and anoxic portions of the water column, with a maximum around the interface where oxygen disappears. This 'interface' oscillates between 200 and 300 meters. As such unique location, the Cariaco Basin
305:. It is a deep depression composed of two sub-basins, the eastern basin and the western basin, each of about 1,400 metres (4,600 ft) depth, separated by a saddle of approximately 900 metres (3,000 ft) water-depth. To the south, the basin confines with the wide (~50 km) Unare Platform. 308:
It is connected to the open Caribbean Sea through two shallow (around 140 metres (460 ft)) channels, to the north the (Tortuga Channel) and to the west the (Centinela Channel). Water circulation inside the basin is restricted, which, combined with the high annual primary productivity of the
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Peterson, L.C., Haug, G.H., Murray, R.W., Yarincik, K.M., King, J.W., Bralower, T.J., Kameo, K., Rutherford, S.D. and Pearce, R.B. 2000b: Late Quaternary stratigraphy and sedimentation at site 1002, Cariaco Basin (Venezuela). In Leckie, R.M., Sigurdsson, H., Acton, G.D. and Draper, G. (eds.):
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Peterson, L.C. & Haug, G.H. 2006: Variability in the mean latitude of the Atlantic Intertropical Convergence Zone as recorded by riverine input of sediments to the Cariaco Basin (Venezuela). Palaeogeography, Palaeoclimatology, Palaeoecology 234,
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González, C., Dupont, L. M., Mertens, K.N., Wefer, G. (2008). Reconstructing the history of marine productivity of the Cariaco Basin during the Marine Isotope Stages 3 and 4 using organic-walled dinoflagellate cysts. Paleoceanography 23, PA3215,
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Peterson, L. C., G.H. Haug (2006). Variability in the mean latitude of the Atlantic Intertropical Convergence Zone as recorded by riverine input of sediments to the Cariaco Basin (Venezuela). Palaeogeography, Palaeoclimatology, Palaeoecology
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Piper, D. & Dean, W.E. 2002: Trace-element deposition in the Cariaco Basin under sulfate reducing conditions—a history of the local hydrography and global climate, 20 ka to the present. US Geological Survey Professional Paper 1670, 41
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González, C., Dupont, L.M., Behling, H. & Wefer, G. 2008a: Neotropical vegetation response to rapid climate changes during the last glacial period: palynological evidence from the Cariaco Basin. Quaternary Research 69,
823: 642:& Murray, D.W. 1997: Late Quaternary climate change from δ18O records of multiple species of planktonic foraminifera: high-resolution records from the anoxic Cariaco Basin, Venezuela. Paleoceanography 12, 415-427. 610:
Herbert, T.D. & Schuffert, J.D. 2000: Alkenone unsaturation estimates of sea-surface temperatures at site 1002 over a full glacial cycle. Proceedings of the Ocean Drilling Program, Scientific Results 165,
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work that has resulted from the CARIACO ocean time series program has demonstrated that this anoxic basin is quite dynamic and has helped understand the paleoclimatic record stored in the basin's sediments.
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Mertens, K.N., Lynn, M., Aycard, M., Lin, H.-L. & Louwye, S. (2009). Coccolithophores as paleoecological indicators for shift of the ITCZ in the Cariaco Basin. Journal of Quaternary Science 24 (2),
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Mertens, K. N., González, C., Delusina, I. & Louwye, S. (2009). 30000 years of productivity and salinity variations in the late Quaternary Cariaco Basin revealed by dinoflagellate cysts. Boreas 38,
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Special Issue: Views of Ocean Processes from the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) Mission: Volume 2 - Edited by D. A. Siegel, A. C. Thomas and J. Marra. Vol 51/10-11 pp 927–943.
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Lea, D.W., Pak, D.K., Peterson, L.C. & Hughen, K.A. 2003: Synchroneity of Tropical and High-Latitude Atlantic temperatures over the Last Glacial Termination. Science 301, 1361-1364.
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Peterson, L.C., Overpeck, J.T., Kipp, N.G. and Imbrie, J. 1991: A high–resolution late Quaternary upwelling record from the anoxic Cariaco Basin, Venezuela, Paleoceanography 6, 99–119.
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Haug, G. H., K. A. Hughen, D. M. Sigman, L. C. Peterson and U. Rohl (2001). Southward Migration of the Intertropical Convergence Zone Through the Holocene. Science, 293: 1304-1308
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Tedesco, K. and Thunell, R., (2003) Seasonal and interannual variations in planktonic foraminiferal flux and assemblage composition in the Cariaco Basin,
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Abundance, distribution and behaviour of common dolphins, Delphinus spp., off north-eastern Venezuela: implications for conservation and management
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Ecology of Neritic Odontocete Cetaceans in an Upwelling Ecosystem in the Northeast Coast of Venezuela: Delphinus Spp, Sotalia guianensis
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Acoustic and Visual Survey of Humpback Whale (Megaptera novaeangliae) Distribution in the Eastern and Southeastern Caribbean Sea
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Swartz L. S.. Cole T.. McDonald A.M.. Hildebrand A. J.. Oleson M. E.. MartĂ­nez A.. Clapham J.P.. Barlow J.. Jones L. M.. 2003.
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Chemoautotrophy in the redox transition zone of the Cariaco Basin: A significant source of mid-water organic carbon production.
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Proceedings of the Ocean Drilling Program, Scientific results 165, 85–99, College station, TX (Ocean Drilling Program).
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of alternating light and dark color, which correspond to the dry or rainy season. Its unique geography and undisturbed
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Annual Cycle of Primary Production in the Cariaco Basin: Response to upwelling and implications for vertical export.
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Taylor, G. T., M. I. Scranton, M. Iabichella, T.-Y. Ho, R. C. Thunell, R. Varela, and F. E. Muller-Karger. 2001
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Oviedo L. Esteves A. M.. Acevedo R.. Silva N.. Bolan~os-jime’nez J. Quevedo M. A.. Ferna’ndez M.. 2009.
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provides an excellent history of tropical climate change and is particularly sensitive to shifts in the
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The IUCN Global Ecosystem Typology 2.0: Descriptive profiles for biomes and ecosystem functional groups
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Schubert, C. (1982). Origin of the Cariaco Basin, Southern Caribbean Sea. Mar. Geol., 47: 345-360.
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Processes of Coastal Upwelling and Carbon Flux in the Cariaco Basin. Deep-Sea Research Part II.
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has been the site of a variety of studies since the mid-1950s. Since 1995, an international (
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Organic carbon flux in an anoxic water column: sediment trap results from the Cariaco Basin.
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Thunell, R., R. Varela, M. Llano, J. Collister, F. Muller-Karger, and R. Bohrer. (2000).
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Watermeyer, KE; Gregr, EJ; Rykaczewski, RR; Shannon, LJ; Suthers, IM; Keith, DA (2020).
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Muller-Karger, F. E., R. Varela, R. Thunell, Y. Astor, H. Zhang, and C. Hu. (2004).
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Killer whale (Orcinus orca) occurrence in Venezuelan waters, 1982-2008
471: 425: 367: 354: 334: 302: 260: 142: 883:(pdf). Caribbean Journal of Science. Vol. 39. No.2. pp.195–208. The 437: 350: 247: 765: 499: 449: 441: 375: 274: 243: 169: 716:, Moore, WS, Thunell, RC, Astor, Y. and F. Muller-Karger (2004) 402: 61: 908:. Latin American Journal of Aquatic Mammals (LAJAM). 7(1-2). 718:"Radionuclide fluxes and particle scavenging in Cariaco Basin" 445: 338: 322: 309:
region (~500 gCmyr), causes the basin to be permanently
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located on the continental shelf off the eastern coast of
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en el golfo de cariaco ballena en el golfo de cariaco
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Limnology and Oceanography. Vol. 46, no. 1. 148-163.
467: 955: 184:, Cape Codera, FarallĂłn Centinela, Venezuelan coast 444:. The waters are also home to several species of 1057: 896:Bolaños-JimĂ©nez J.. Fertl D.. Iñiguez M.. 2009. 313:, below ~250 m. This naturally occurring 941: 317:allows for sediments to be deposited without 754:Venezuela. Journal of Foraminiferal Research 638:Lin, H.-L., Peterson, L.C., Overpeck, J.T., 432:changes are linked to the intensity of the 297:The Cariaco Basin is an east-west trending 948: 934: 60: 743:Limnology and Oceanography. 45. 300-308. 51:Location of the basin offshore Venezuela 1058: 929: 43: 259:lies off the north central coast of 539:J. Geophys. Res. 106:C3. 4527-4542. 428:. The seasonal upwelling cycle and 424:The Cariaco Basin is an example of 13: 14: 1087: 531:Muller-Karger, F. E., R. Varela, 341:, and micropaleontological, with 1044: 1033: 1032: 985: 484: 470: 269:. It is bounded on the east by 135: 42: 35: 1066:Sedimentary basins of Venezuela 956:Sedimentary basins of Venezuela 890: 866: 854: 837: 816: 804: 759: 746: 733: 706: 693: 683: 673: 655: 645: 632: 623: 614: 360: 604: 594: 584: 574: 564: 555: 542: 525: 516: 331:Intertropical Convergence Zone 292: 1: 920:. Retrieved on April 16, 2017 887:. Retrieved on April 16, 2017 863:. Retrieved on April 16, 2017 851:. Retrieved on April 16, 2017 834:. Retrieved on April 16, 2017 813:. Retrieved on April 16, 2017 510: 774:. Gland, Switzerland: IUCN. 7: 463: 10: 1092: 811:Golf de Cariaco, Venezuela 780:10.2305/IUCN.CH.2020.13.en 728:Continental Shelf Research 419: 1030: 997: 980: 961: 885:University of Puerto Rico 832:10.1017/S002531540999097X 426:upwelling zone ecosystems 237: 225: 213: 208: 193: 188: 161: 153: 148: 130: 120: 110: 71: 59: 30: 23: 18: 411:) program consists of a 66:Cariaco Basin, Venezuela 974:Eastern Venezuela Basin 505:Eastern Venezuela Basin 430:sea surface temperature 768:"M1.9 Upwelling zones" 723:July 11, 2006, at the 668:10.1029/2008PA001602 969:Barinas-Apure Basin 91: /  906:10.5597/lajam00138 879:2012-09-04 at the 849:Rufford Foundation 714:Benitez-Nelson, C. 407:2013-12-06 at the 281:; on the north by 1071:Pull-apart basins 1053: 1052: 1022:Tuy-Cariaco Basin 789:978-2-8317-2077-7 347:pollen and spores 253: 252: 95:10.500°N 65.167°W 1083: 1048: 1036: 1035: 989: 950: 943: 936: 927: 926: 921: 916:. pp.75-79. The 894: 888: 870: 864: 858: 852: 841: 835: 820: 814: 808: 802: 801: 763: 757: 750: 744: 737: 731: 710: 704: 697: 691: 687: 681: 677: 671: 659: 653: 649: 643: 636: 630: 627: 621: 618: 612: 608: 602: 598: 592: 588: 582: 578: 572: 568: 562: 559: 553: 546: 540: 529: 523: 520: 494: 492:Venezuela portal 489: 488: 487: 480: 475: 474: 299:pull-apart basin 277:Island, and the 271:Margarita Island 220:Pull-apart basin 166:Margarita Island 141: 139: 138: 106: 105: 103: 102: 101: 96: 92: 89: 88: 87: 84: 64: 46: 45: 39: 16: 15: 1091: 1090: 1086: 1085: 1084: 1082: 1081: 1080: 1056: 1055: 1054: 1049: 1026: 1017:Margarita Basin 1012:Maracaibo Basin 999: 993: 992: 991: 990: 978: 957: 954: 924: 895: 891: 881:Wayback Machine 871: 867: 859: 855: 842: 838: 821: 817: 809: 805: 790: 764: 760: 751: 747: 738: 734: 725:Wayback Machine 711: 707: 698: 694: 688: 684: 678: 674: 660: 656: 650: 646: 637: 633: 628: 624: 619: 615: 609: 605: 599: 595: 589: 585: 579: 575: 569: 565: 560: 556: 547: 543: 530: 526: 521: 517: 513: 490: 485: 483: 476: 469: 466: 422: 409:Wayback Machine 363: 327:sediment record 295: 279:Araya Peninsula 266:Gulf of Cariaco 200: 198:Gulf of Cariaco 174:Araya Peninsula 149:Characteristics 136: 134: 115:Gulf of Cariaco 100:10.500; -65.167 99: 97: 93: 90: 85: 82: 80: 78: 77: 67: 55: 54: 53: 52: 49: 48: 47: 12: 11: 5: 1089: 1079: 1078: 1073: 1068: 1051: 1050: 1031: 1028: 1027: 1025: 1024: 1019: 1014: 1009: 1003: 1001: 995: 994: 984: 983: 982: 981: 979: 977: 976: 971: 965: 963: 959: 958: 953: 952: 945: 938: 930: 923: 922: 889: 865: 853: 836: 815: 803: 788: 758: 745: 732: 730:24, 1451-1463. 705: 692: 682: 672: 654: 644: 640:Trumbore, S.E. 631: 622: 613: 603: 593: 583: 573: 563: 554: 541: 524: 514: 512: 509: 508: 507: 502: 496: 495: 481: 478:Geology portal 465: 462: 421: 418: 362: 359: 294: 291: 283:Tortuga Island 263:and forms the 251: 250: 241: 235: 234: 229: 223: 222: 217: 211: 210: 206: 205: 195: 191: 190: 186: 185: 178:Tortuga Island 163: 159: 158: 155: 151: 150: 146: 145: 132: 128: 127: 122: 118: 117: 112: 108: 107: 75: 69: 68: 65: 57: 56: 50: 41: 40: 34: 33: 32: 31: 28: 27: 25:Cuenca Cariaco 21: 20: 9: 6: 4: 3: 2: 1088: 1077: 1076:Anoxic waters 1074: 1072: 1069: 1067: 1064: 1063: 1061: 1047: 1043: 1039: 1029: 1023: 1020: 1018: 1015: 1013: 1010: 1008: 1005: 1004: 1002: 996: 988: 975: 972: 970: 967: 966: 964: 960: 951: 946: 944: 939: 937: 932: 931: 928: 919: 915: 911: 907: 903: 899: 893: 886: 882: 878: 875: 869: 862: 857: 850: 846: 840: 833: 829: 825: 819: 812: 807: 799: 795: 791: 785: 781: 777: 773: 769: 762: 755: 749: 742: 736: 729: 726: 722: 719: 715: 709: 702: 696: 686: 676: 669: 665: 658: 648: 641: 635: 626: 617: 607: 597: 587: 577: 571:234(1):97-113 567: 558: 551: 545: 538: 534: 528: 519: 515: 506: 503: 501: 498: 497: 493: 482: 479: 473: 468: 461: 459: 455: 451: 447: 443: 439: 435: 431: 427: 417: 414: 410: 406: 403: 400: 396: 393: 389: 385: 381: 377: 373: 372:United States 369: 358: 356: 352: 348: 344: 340: 336: 332: 328: 324: 320: 316: 312: 306: 304: 300: 290: 288: 287:Tortuga Banks 284: 280: 276: 272: 268: 267: 262: 258: 257:Cariaco Basin 249: 245: 244:Early Miocene 242: 240: 236: 233: 230: 228: 224: 221: 218: 216: 212: 207: 204: 203:Caribbean Sea 199: 196: 192: 187: 183: 182:Tortuga Banks 179: 175: 171: 167: 164: 160: 156: 152: 147: 144: 133: 129: 126: 125:Caribbean Sea 123: 119: 116: 113: 109: 104: 76: 74: 70: 63: 58: 38: 29: 26: 22: 19:Cariaco Basin 17: 1021: 1007:FalcĂłn Basin 1000:and offshore 918:ResearchGate 892: 868: 856: 839: 818: 806: 771: 761: 756:33, 192-210. 753: 748: 735: 727: 708: 695: 685: 675: 657: 647: 634: 625: 616: 606: 596: 586: 576: 566: 557: 544: 527: 518: 440:and attract 423: 398: 394: 391: 387: 383: 379: 364: 361:Anoxic basin 343:foraminifera 319:bioturbation 315:anoxic basin 307: 296: 264: 256: 254: 24: 843:Oviedo L.. 712:Smoak, JM, 434:trade winds 413:time series 293:Description 154:On/Offshore 98: / 73:Coordinates 1060:Categories 533:R. Thunell 511:References 355:coccoliths 321:, forming 215:Basin type 162:Boundaries 914:1676-7497 798:241360441 448:(such as 386:etention 368:Venezuela 351:dinocysts 335:alkenones 303:Venezuela 261:Venezuela 232:Caribbean 189:Hydrology 143:Venezuela 111:Etymology 1038:Category 877:Archived 721:Archived 690:159-174. 680:647-662. 652:217-230. 464:See also 454:humpback 450:rorquals 442:dolphins 438:sardines 405:Archived 285:and the 248:Holocene 157:Offshore 121:Location 998:Onshore 962:Onshore 611:239-247 591:97-113. 500:Cariaco 456:), and 420:Ecology 397:olored 376:CARIACO 275:Cubagua 209:Geology 170:Cubagua 131:Country 86:65°10′W 83:10°30′N 1042:Images 912:  847:. The 796:  786:  446:whales 401:cean; 323:varves 311:anoxic 201:  194:Sea(s) 140:  794:S2CID 458:orcas 382:rbon 339:Mg/Ca 227:Plate 910:ISSN 784:ISBN 452:and 370:and 353:and 255:The 902:doi 828:doi 776:doi 664:doi 601:pp. 345:, 239:Age 1062:: 1040:• 900:. 792:. 782:. 460:. 390:n 380:Ca 357:. 349:, 337:, 273:, 180:, 176:, 172:, 168:, 949:e 942:t 935:v 904:: 830:: 800:. 778:: 670:. 666:: 399:O 395:C 392:a 388:i 384:R 378:( 246:-

Index

Map showing the location of Cariaco Basin

Coordinates
10°30′N 65°10′W / 10.500°N 65.167°W / 10.500; -65.167
Gulf of Cariaco
Caribbean Sea
Venezuela
Margarita Island
Cubagua
Araya Peninsula
Tortuga Island
Tortuga Banks
Gulf of Cariaco
Caribbean Sea
Basin type
Pull-apart basin
Plate
Caribbean
Age
Early Miocene
Holocene
Venezuela
Gulf of Cariaco
Margarita Island
Cubagua
Araya Peninsula
Tortuga Island
Tortuga Banks
pull-apart basin
Venezuela

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