دورية أكاديمية
Phytoplankton blooms and fish kills in lake Tanganyika related to upwelling and the limnological cycle
| العنوان: | Phytoplankton blooms and fish kills in lake Tanganyika related to upwelling and the limnological cycle |
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| المؤلفون: | Plisnier, Pierre-Denis, Cocquyt, Christine, Cornet, Yves, Poncelet, Nadia, Nshombo, Muderhwa, Ntakimazi, Gaspard, Nahimana, David, Makasa, Lawrence, MacIntyre, Sally |
| المصدر: | Journal of Great Lakes Research, 102247 (2023-11-03) |
| بيانات النشر: | Elsevier BV, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Aquatic Science, Remote Sensing, Hydro-Eco-Dynamics, Trade winds, East African Great lakes, Local knowledge, Kelvin waves, Life sciences, Aquatic sciences & oceanology, Physical, chemical, mathematical & earth Sciences, Earth sciences & physical geography, Sciences du vivant, Sciences aquatiques & océanologie, Physique, chimie, mathématiques & sciences de la terre, Sciences de la terre & géographie physique |
| الوصف: | Characterizing the processes which cause upwelling in the East African Great Lakes enables prediction of the spatial–temporal variability of phytoplankton blooms and increases in fish abundance or incidence of fish kills. The influence of the southeast trade winds on the limnology of Lake Tanganyika is well known. Upwelling occurs to the south and downwelling to the north from May to September and subsequent upwelling and blooms at the northern end of the lake. However, the influence of the shifts in wind speed and direction after the SE trade winds, including the Northeast trade winds, and any further internal wave driven upwelling requires investigation. Here we use images from remote-sensing during a 12 year period (2003–2014) to illustrate intense phytoplankton blooms at the southeast of Lake Tanganyika in April-May, a period characterized by relaxation of the Northeast trade winds. Phytoplankton blooms progressed around the lake after a massive cyanobacteria bloom at the northern end in September 2018; recent and historical observations and local knowledge show similar patterns. Lake Tanganyika limnological cycle is revised to include four main periods: two trade winds seasons and two inter-monsoon seasons (April-May and September-October) with lake-wide up and downwelling of the thermocline associated with the monsoons, and upwelling associated with subsequent internal waves in the inter-monsoon period which are linked with increased phytoplankton blooms and sometimes also fish kills. |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501 article peer reviewed |
| اللغة: | English |
| Relation: | https://api.elsevier.com/content/article/PII:S038013302300240X?httpAccept=text/xml; urn:issn:0380-1330; urn:issn:2773-0719 |
| DOI: | 10.1016/j.jglr.2023.102247 |
| URL الوصول: | https://orbi.uliege.be/handle/2268/308462 |
| حقوق: | open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
| رقم الأكسشن: | edsorb.308462 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.1016/j.jglr.2023.102247 |
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