Knowledge (XXG)

Lake Natron

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49: 65: 611: 241: 319:, and by mineral-rich hot springs. It is quite shallow, less than three metres (9.8 ft) deep, and varies in width depending on its water level. The lake is a maximum of 57 kilometres (35 mi) long and 22 kilometres (14 mi) wide. The surrounding area receives irregular seasonal rainfall, mainly between December and May totalling 800 millimetres (31 in) per year. Temperatures at the lake are frequently above 40 °C (104 °F). 642: 557:
Currently a group of more than fifty East African conservation and environmental institutions are running a worldwide campaign to stop the planned construction of the soda ash factory by Tata Chemicals Ltd of Mumbai, India and National Development Corporation of Tanzania. The group working under the umbrella name Lake Natron Consultative Group is being co-ordinated by Ken Mwathe, Conservation Programme Manager at
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development. However, lack of a general management plan, inadequate funding at the operational level, lack of mechanisms to secure a fair distribution of ecotourism benefits, and poorly developed tourism infrastructural facilities to support diverse segments of tourists were identified as the main
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international officer for Africa, "The chance of the lesser flamingoes continuing to breed in the face of such mayhem are next to zero. This development will leave lesser flamingoes in East Africa facing extinction". Seventy-five percent of the world's lesser flamingoes are born on Lake Natron.
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plant on its shores. The plant would pump water from the lake and extract the sodium carbonate to convert to washing powder for export. Accompanying the plant would be housing for over 1000 workers, and a coal-fired power station to provide energy for the plant complex. In addition, there is a
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As per communication in June 2008, Tata Chemicals shall not proceed with the Natron Project and further re-examination of this project will be subject to the Ramsar Wetlands plan, which is currently under preparation.
537:. Although development plans include constructions of a dike at the north end of the lake to contain the freshwater, the threat of dilution to this breeding ground may still be serious. There is no formal protection. 525:
is not inhabited but there is some herding and some seasonal cultivation. Threats to the salinity balance from increased siltation influxes will come from more projected logging in Natron watersheds and a planned
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as plants do. The red accessory photosynthesizing pigment in the cyanobacteria produces the deep reds of the open water of the lake and the orange colours of the shallow parts of the lake. The
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Most animals find the lake's high temperature (up to 60 °C ) and its high and variable salt content inhospitable. Nonetheless, Lake Natron is home to some
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challenges associated with the management of ecotourism in the area. The lake can also be accessed from Shompole Conservancy
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rates occur. As water evaporates during the dry season, salinity levels increase to the point that salt-loving
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can also be seen. Numerous near-white salt-crust "rafts" pepper the shallowest parts of the lake (inset).
876:, Geotechnologies and the Environment, vol. 22, Springer International Publishing, pp. 75–90, 872:
Shoo, Rehema Abeli (2020), "Ecotourism Potential and Challenges at Lake Natron Ramsar Site, Tanzania",
1387: 497: 1184: 573: 503: 453: 268: 93: 1189: 509: 1286: 753:, editor-in-chief Joshua S. Lederberg, Academic Press, 2010, page 129, accessed 24 November 2014 303:, although this habitat is not protected and is under threat from planned development projects. 240: 1174: 885: 748: 726: 664: 448: 296: 292: 288: 197: 438:, whose status of "near threatened" results from their dependence on this one location. When 1143: 877: 647: 589: 465: 452:(a blue-green algae with red pigments). Lake Natron is a safe breeding location because its 327: 1245: 1108: 1047: 486: 435: 300: 299:
wetland of international significance. It is the only regular breeding area for Africa's
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of greater than 12. The surrounding bedrock is composed of alkaline, sodium-dominated
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There are a number of campgrounds near the lake, which is also the base for climbing
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and freshwater wetlands around the edges of the lake do support a variety of plants.
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The lake is the only regular breeding area in East Africa for the 2.5 million
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Because of its unique biodiversity, Tanzania named the Lake Natron Basin to the
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salt crust on the surface of the lake is also often coloured red or pink by the
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levels. This has allowed the lake to concentrate into a caustic alkaline brine.
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NBC article about Nick Brandt's photos of petrified animals at Natron lake
1479: 1428: 1138: 1113: 633: 541: 439: 417: 339: 276: 173: 101: 1474: 1413: 1408: 1148: 351: 1423: 1418: 1403: 1133: 749:"Alkaline Environments", authored by W. D. Grant and B. E. Jones, in 394: 323: 960: 721: 507:, also thrive in the waters at the edges of the hot spring inlets. 598: 534: 428: 420: 373:
The colour of the lake is characteristic of those where very high
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A new threat to Lake Natron is the proposed development of a
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the bodies of any living thing that died in the lake.
30:"Medusa Lake" redirects here. Not to be confused with 766:"This Alkaline African Lake Turns Animals into Stone" 1442: 1396: 1330: 1269: 1213: 1167: 1101: 570:
Ramsar List of Wetlands of International Importance
222: 214: 204: 195: 191: 183: 179: 166: 154: 115: 89: 41: 545:possibility the developers may introduce a hybrid 460:trying to reach their nests on seasonally forming 361:The chemical properties of the water are known to 513:is also present in the lake, but is not endemic. 116: 841:"Position Statement on the Lake Natron Project" 846:. Tata Chemicals. 13 June 2008. Archived from 346:period. The lavas have significant amounts of 1079: 976: 475:The lake has inspired the nature documentary 8: 322:High levels of evaporation have left behind 1086: 1072: 1064: 983: 969: 961: 670:The Crimson Wing: Mystery of the Flamingos 549:to increase the efficiency of extraction. 478:The Crimson Wing: Mystery of the Flamingos 53:The lake on 6 March 2017 (satellite image) 38: 716: 714: 533:on the Ewaso Nyiro across the border in 244:The southern half of Lake Natron (top). 27:Alkaline lake in Arusha Region, Tanzania 1443:Paleontological and archeological sites 681: 606: 485:, for its close relationship with the 1521:Saline lakes of the Great Rift Valley 695: 693: 691: 689: 687: 685: 572:on 4 July 2001. The lake is also the 489:as their only regular breeding area. 342:lavas that were laid down during the 287:, which is the eastern branch of the 221: 213: 203: 194: 7: 913:Think Pink – Save Africa's Flamingos 874:Protected Areas in Northern Tanzania 311:This lake is fed principally by the 792:"The Bizarre Medusa Lake of Africa" 764:Joseph Stromberg (2 October 2013). 71: 812:Billock, Jennifer (14 June 2016). 25: 456:environment is a barrier against 1536:Important Bird Areas of Tanzania 790:Swancer, Brent (20 April 2015). 640: 625: 609: 70: 63: 47: 182: 616:Lake Natron as seen on NASA's 552:According to Chris Magin, the 492:Two endemic fish species, the 389:that make their own food with 315:River, which rises in central 1: 1358:Mount Kipipiri Forest Reserve 1348:Lake Bogoria National Reserve 1338:Kerio Valley National Reserve 88: 1378:Mount Longonot National Park 751:Encyclopedia of Microbiology 1368:Lake Naivasha National Park 882:10.1007/978-3-030-43302-4_6 1552: 1526:Geography of Arusha Region 1363:Kigio Wildlife Conservancy 1343:Lake Baringo National Park 950:"East African halophytics" 929:Earth Observatory Newsroom 187:600 metres (2,000 ft) 29: 1373:Hell's Gate National Park 1353:Lake Nakuru National Park 998: 729:Sites Information Service 576:East African halophytics 291:. The lake is within the 234: 230: 58: 46: 1516:Ramsar sites in Tanzania 1095:Great Rift Valley, Kenya 517:Threats and preservation 32:Medusa Lake (Antarctica) 1383:Mount Suswa Conservancy 924:"Lake Natron, Tanzania" 561:'s Africa Secretariat. 385:organisms include some 956:. World Wildlife Fund. 954:Terrestrial Ecoregions 559:BirdLife International 381:begin to thrive. Such 267:lake located in north 253: 1531:Southern Eastern Rift 1322:Southern Ewaso Ng'iro 1168:Hills and escarpments 650:seen from Lake Natron 313:Southern Ewaso Ng'iro 243: 1388:Shompole Conservancy 770:Smithsonian Magazine 521:The area around the 498:Alcolapia latilabris 1185:Nguruman Escarpment 722:"Lake Natron Basin" 705:World Wildlife Fund 574:World Wildlife Fund 279:at the border with 269:Ngorongoro District 135: /  94:Ngorongoro District 1331:Conservation areas 1190:Losiolo Escarpment 468:also breed on the 466:Greater flamingoes 254: 223:Reference no. 1511:Lakes of Tanzania 1498: 1497: 1175:Elgeyo Escarpment 1061: 1060: 992:Lakes of Tanzania 936:on 1 October 2006 891:978-3-030-43301-7 853:on 5 October 2013 665:Rift Valley lakes 584:Visiting the area 494:alkaline tilapias 487:Lesser flamingoes 442:increases, so do 436:lesser flamingoes 404:that live there. 330:decahydrate) and 301:lesser flamingoes 293:Lake Natron Basin 289:East African Rift 238: 237: 209:Lake Natron Basin 184:Surface elevation 18:Lake Natron Basin 16:(Redirected from 1543: 1088: 1081: 1074: 1065: 985: 978: 971: 962: 957: 945: 943: 941: 932:. Archived from 895: 894: 869: 863: 862: 860: 858: 852: 845: 837: 831: 830: 828: 826: 809: 803: 802: 800: 798: 787: 781: 780: 778: 776: 761: 755: 746: 740: 739: 737: 735: 718: 709: 708: 697: 648:Ol Doinyo Lengai 644: 629: 613: 590:Ol Doinyo Lengai 328:sodium carbonate 150: 149: 147: 146: 145: 140: 139:2.417°S 36.000°E 136: 133: 132: 131: 128: 118: 74: 73: 67: 51: 39: 21: 1551: 1550: 1546: 1545: 1544: 1542: 1541: 1540: 1501: 1500: 1499: 1494: 1438: 1392: 1326: 1265: 1209: 1163: 1109:Barrier Volcano 1097: 1092: 1062: 1057: 994: 989: 948: 939: 937: 922: 908:LakeNet Profile 904: 899: 898: 892: 871: 870: 866: 856: 854: 850: 843: 839: 838: 834: 824: 822: 811: 810: 806: 796: 794: 789: 788: 784: 774: 772: 763: 762: 758: 747: 743: 733: 731: 720: 719: 712: 699: 698: 683: 678: 661: 656: 655: 654: 651: 645: 636: 630: 621: 614: 586: 519: 414: 371: 309: 283:. It is in the 200: 170: countries 143: 141: 137: 134: 129: 126: 124: 122: 121: 85: 84: 83: 82: 81: 80: 79: 75: 54: 35: 28: 23: 22: 15: 12: 11: 5: 1549: 1547: 1539: 1538: 1533: 1528: 1523: 1518: 1513: 1503: 1502: 1496: 1495: 1493: 1492: 1490:Rusinga Island 1487: 1482: 1477: 1472: 1467: 1462: 1457: 1452: 1446: 1444: 1440: 1439: 1437: 1436: 1431: 1426: 1421: 1416: 1411: 1406: 1400: 1398: 1394: 1393: 1391: 1390: 1385: 1380: 1375: 1370: 1365: 1360: 1355: 1350: 1345: 1340: 1334: 1332: 1328: 1327: 1325: 1324: 1319: 1314: 1309: 1304: 1299: 1294: 1289: 1284: 1279: 1273: 1271: 1267: 1266: 1264: 1263: 1258: 1253: 1248: 1243: 1238: 1233: 1228: 1223: 1217: 1215: 1211: 1210: 1208: 1207: 1202: 1197: 1195:Aberdare Range 1192: 1187: 1182: 1180:Mau Escarpment 1177: 1171: 1169: 1165: 1164: 1162: 1161: 1156: 1151: 1146: 1141: 1136: 1131: 1126: 1121: 1119:Emuruangogolak 1116: 1111: 1105: 1103: 1099: 1098: 1093: 1091: 1090: 1083: 1076: 1068: 1059: 1058: 1056: 1055: 1050: 1045: 1040: 1035: 1030: 1025: 1020: 1015: 1010: 1005: 999: 996: 995: 990: 988: 987: 980: 973: 965: 959: 958: 946: 920: 915: 910: 903: 902:External links 900: 897: 896: 890: 864: 832: 804: 782: 756: 741: 710: 680: 679: 677: 674: 673: 672: 667: 660: 657: 653: 652: 646: 639: 637: 632:The lake with 631: 624: 622: 615: 608: 605: 604: 603: 585: 582: 518: 515: 413: 410: 402:microorganisms 391:photosynthesis 379:microorganisms 370: 367: 308: 305: 236: 235: 232: 231: 228: 227: 224: 220: 219: 216: 212: 211: 206: 202: 201: 198:Ramsar Wetland 196: 193: 192: 189: 188: 185: 181: 180: 177: 176: 171: 164: 163: 158: 152: 151: 144:-2.417; 36.000 119: 113: 112: 106:Kajiado County 91: 87: 86: 77: 76: 69: 68: 62: 61: 60: 59: 56: 55: 52: 44: 43: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1548: 1537: 1534: 1532: 1529: 1527: 1524: 1522: 1519: 1517: 1514: 1512: 1509: 1508: 1506: 1491: 1488: 1486: 1485:Olduvai Gorge 1483: 1481: 1478: 1476: 1473: 1471: 1468: 1466: 1463: 1461: 1458: 1456: 1453: 1451: 1450:Afar Triangle 1448: 1447: 1445: 1441: 1435: 1432: 1430: 1427: 1425: 1422: 1420: 1417: 1415: 1412: 1410: 1407: 1405: 1402: 1401: 1399: 1397:Urban centres 1395: 1389: 1386: 1384: 1381: 1379: 1376: 1374: 1371: 1369: 1366: 1364: 1361: 1359: 1356: 1354: 1351: 1349: 1346: 1344: 1341: 1339: 1336: 1335: 1333: 1329: 1323: 1320: 1318: 1315: 1313: 1310: 1308: 1305: 1303: 1300: 1298: 1295: 1293: 1290: 1288: 1285: 1283: 1280: 1278: 1275: 1274: 1272: 1268: 1262: 1259: 1257: 1254: 1252: 1249: 1247: 1244: 1242: 1239: 1237: 1234: 1232: 1229: 1227: 1224: 1222: 1219: 1218: 1216: 1212: 1206: 1205:Loriu Plateau 1203: 1201: 1198: 1196: 1193: 1191: 1188: 1186: 1183: 1181: 1178: 1176: 1173: 1172: 1170: 1166: 1160: 1157: 1155: 1152: 1150: 1147: 1145: 1142: 1140: 1137: 1135: 1132: 1130: 1127: 1125: 1122: 1120: 1117: 1115: 1112: 1110: 1107: 1106: 1104: 1100: 1096: 1089: 1084: 1082: 1077: 1075: 1070: 1069: 1066: 1054: 1051: 1049: 1046: 1044: 1041: 1039: 1036: 1034: 1031: 1029: 1026: 1024: 1021: 1019: 1016: 1014: 1011: 1009: 1006: 1004: 1001: 1000: 997: 993: 986: 981: 979: 974: 972: 967: 966: 963: 955: 951: 947: 935: 931: 930: 925: 921: 919: 916: 914: 911: 909: 906: 905: 901: 893: 887: 883: 879: 875: 868: 865: 849: 842: 836: 833: 821: 820: 815: 808: 805: 793: 786: 783: 771: 767: 760: 757: 754: 752: 745: 742: 730: 728: 723: 717: 715: 711: 706: 702: 696: 694: 692: 690: 688: 686: 682: 675: 671: 668: 666: 663: 662: 658: 649: 643: 638: 635: 628: 623: 619: 612: 607: 602: 600: 595: 591: 583: 581: 579: 575: 571: 566: 562: 560: 555: 550: 548: 543: 538: 536: 532: 529: 528:hydroelectric 524: 516: 514: 512: 511: 506: 505: 500: 499: 495: 490: 488: 484: 480: 479: 473: 471: 467: 463: 459: 455: 451: 450: 445: 444:cyanobacteria 441: 437: 432: 430: 426: 425:invertebrates 422: 419: 411: 409: 407: 403: 400: 396: 392: 388: 387:cyanobacteria 384: 380: 376: 368: 366: 364: 359: 357: 353: 350:but very low 349: 345: 341: 337: 333: 329: 325: 320: 318: 314: 306: 304: 302: 298: 294: 290: 286: 282: 278: 274: 273:Arusha Region 270: 266: 262: 258: 251: 250:Gelai Volcano 247: 242: 233: 229: 225: 217: 210: 207: 205:Official name 199: 190: 186: 178: 175: 172: 169: 165: 162: 159: 157: 153: 148: 120: 114: 111: 107: 103: 99: 98:Arusha Region 95: 92: 66: 57: 50: 45: 40: 37: 33: 19: 1260: 1037: 953: 938:. 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Retrieved 725: 704: 587: 567: 563: 551: 547:brine shrimp 539: 520: 508: 504:A. ndalalani 502: 496: 491: 483:Disneynature 476: 474: 447: 433: 415: 406:Salt marshes 372: 360: 321: 310: 285:Gregory Rift 256: 255: 246:Fault scarps 208: 36: 1455:Aiyangiyang 1200:Ngong Hills 1159:Mount Suswa 819:Smithsonian 531:power plant 510:A. alcalica 375:evaporation 344:Pleistocene 297:Ramsar Site 257:Lake Natron 218:4 July 2001 142: / 117:Coordinates 78:Lake Natron 42:Lake Natron 1505:Categories 1470:Koobi Fora 1246:Elmenteita 1048:Tanganyika 676:References 618:World Wind 594:ecotourism 399:halophilic 307:Properties 215:Designated 1292:Ol Arabel 1102:Volcanoes 857:7 October 634:flamingos 578:ecoregion 523:salt lake 470:mud flats 464:islands. 462:evaporite 458:predators 449:Spirulina 383:halophile 356:magnesium 348:carbonate 156:Lake type 1480:Lothagam 1460:Amboseli 1429:Naivasha 1297:Perkerra 1251:Naivasha 1154:Longonot 1139:Menengai 1114:Namarunu 1053:Victoria 1003:Ambussel 940:17 April 734:25 April 659:See also 542:soda ash 440:salinity 340:trachyte 277:Tanzania 265:alkaline 248:and the 174:Tanzania 102:Tanzania 90:Location 1475:Laetoli 1414:Marigat 1409:Kinyang 1317:Turasha 1302:Waseges 1236:Bogoria 1231:Baringo 1221:Turkana 1149:Olkaria 1033:Manyara 825:17 June 620:program 454:caustic 418:endemic 363:calcify 352:calcium 130:36°00′E 127:02°25′S 1434:Magadi 1424:Gilgil 1419:Nakuru 1404:Kapedo 1312:Malewa 1307:Gilgil 1277:Suguta 1270:Rivers 1261:Natron 1256:Magadi 1241:Nakuru 1226:Logipi 1144:Eburru 1134:Korosi 1124:Silali 1038:Natron 1013:Burigi 1008:Babati 888:  797:1 June 775:11 May 727:Ramsar 554:RSPB's 427:, and 395:alkali 324:natron 161:saline 1465:Karsa 1282:Kerio 1214:Lakes 1043:Rukwa 1023:Eyasi 1018:Chala 851:(PDF) 844:(PDF) 599:Kenya 535:Kenya 429:birds 421:algae 412:Fauna 369:Flora 332:trona 317:Kenya 281:Kenya 259:is a 168:Basin 110:Kenya 1287:Molo 1129:Paka 1028:Jipe 942:2018 886:ISBN 859:2013 827:2016 799:2019 777:2023 736:2018 501:and 354:and 295:, a 261:salt 226:1080 878:doi 481:by 275:in 271:of 263:or 104:, 1507:: 952:. 926:. 884:, 816:. 768:. 724:. 713:^ 703:. 684:^ 601:. 580:. 472:. 423:, 336:pH 108:, 100:, 96:, 1087:e 1080:t 1073:v 984:e 977:t 970:v 944:. 880:: 861:. 829:. 801:. 779:. 738:. 707:. 326:( 34:. 20:)

Index

Lake Natron Basin
Medusa Lake (Antarctica)
Satellite image of lake.
Located in Northern Tanzania near Kenya border.
Ngorongoro District
Arusha Region
Tanzania
Kajiado County
Kenya
02°25′S 36°00′E / 2.417°S 36.000°E / -2.417; 36.000
Lake type
saline
Basin
Tanzania
Ramsar Wetland

Fault scarps
Gelai Volcano
salt
alkaline
Ngorongoro District
Arusha Region
Tanzania
Kenya
Gregory Rift
East African Rift
Lake Natron Basin
Ramsar Site
lesser flamingoes
Southern Ewaso Ng'iro

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