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Browsing Journal Articles by Author "Kavembe, Geraldine D."

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Air breathing in Magadi tilapia Alcolapia grahami, under normoxic and hyperoxic conditions, and the association with sunlight and reactive oxygen species

Kavembe, Geraldine D.; Johannsson, O. E.; Bergman, H. L.; Wood, C. M.; Laurent, P.; Bianchini, A.; Maina, J. N.; Chevalier, C.; Bianchini, L. F.; Papah, M. B.; Ojoo, R. O. (Wiley, 2014-03)

Observations of the Magadi tilapia Alcolapia grahami in hot, highly alkaline Lake Magadi revealed that they air breathe not only during hypoxia, as described previously, but also during normoxia and hyperoxia. Air breathing ...
Eco-morphological differentiation in Lake Magadi tilapia, an extremophile cichlid fish living in hot, alkaline and hypersaline lakes in East Africa.

Kavembe, Geraldine D.; Kautt, A. F.; Machado-Schiaffino, Gonzalo; Meyer, A. (Wiley, 2016)

Ecological diversification through divergent selection is thought to be a major force during the process of adaptive radiations. However, the large sizes and complexity of most radiations such as those of the cichlids in ...
Fasting in the ureotelic Lake Magadi tilapia, Alcolapia grahami, does not reduce its high metabolic demand, increasing its vulnerability to siltation events

De Boeck, Gudrun; Wood, Chris M.; Brix, Kevin V.; Sinha, Amit K.; Matey, Victoria; Johannsson, Ora E.; Bianchini, Adalto; Maina, John N.; Kavembe, Geraldine D.; Papah, Michael B.; Kisipan, Mosiany L.; Ojoo, Rodi O. (Oxford University Press, 2019-10)

Lake Magadi, Kenya, is one of the most extreme aquatic environments on Earth (pH~10, anoxic to hyperoxic, high temperatures). Recently, increased water demand and siltation have threatened the viable hot springs near the ...
The genome organization of the lake magadi tilapia, oreochromis alcolapia grahami, a cichlid extremophile

Bernardi, Giacomo; Kavembe, Geraldine D.; Bergman, Harold L.; Bucciarelli, Giuseppe; Wood, Chris M. (Elsevier, 2024-03-10)

The genome of vertebrates is made of a mosaic of long stretches of DNA, called isochores, which are compositionally uniform, and belong to a few families of GC-poor (L1 and L2) and GC-rich (H1, H2, and H3) components. ...
Genomics of adaptation to multiple concurrent stresses: insights from comparative transcriptomics of a Cichlid fish from one of earth’s most extreme environments, the Hypersaline Soda Lake Magadi in Kenya, East Africa

Kavembe, Geraldine D.; Franchini, Paolo; Irisarri, Iker; Machado-Schiaffino, Gonzalo; Meyer, Axel (Springer Verlag, 2015)

The Magadi tilapia (Alcolapia grahami) is a cichlid fish that inhabits one of the Earth’s most extreme aquatic environments, with high pH (*10), salinity (*60 % of seawater), high temperatures (*40 C), and fluctuating ...
Mammalian metabolic rates in the hottest fish on earth

Kavembe, Geraldine D.; Wood, Chris M.; Brix, Kevin V.; De Boeck, Gudrun; Bergman, Harold L.; Bianchini, Adalto; Bianchini, Lucas F.; Maina, John N.; Johannsson, Ora E.; Papah, Michael B.; Letura, Kisipan M.; Ojoo, Rodi O. (Nature Publishing Group, 2016-06-03)

The Magadi tilapia, Alcolapia grahami, a small cichlid fish of Lake Magadi, Kenya lives in one of the most challenging aquatic environments on earth, characterized by very high alkalinity, unusual water chemistry, and ...
Morphological evaluation of spermatogenesis in Lake Magadi tilapia (Alcolapia grahami): A fish living on the edge

Kavembe, Geraldine D.; Papah, M. B.; Kisia, S. M.; Ojoo, R. O.; Makanya, A. N.; Wood, C. M.; Maina, J. N.; Johannsson, O. E.; Bergman, H. L.; Laurent, P.; Chevalier, C.; Bianchini, A.; Bianchini, L. F.; Onyango, D. W. (Elsevier, 2013-12)

Spermatogenesis in Lake Magadi tilapia (Alcolapia grahami), a cichlid fish endemic to the highly alkaline and saline Lake Magadi in Kenya, was evaluated using light and transmission electron microscopy. Spermatogenesis, ...
Pronounced genetic differentiation of small, isolated and fragmented tilapia populations inhabiting the Magadi Soda Lake in Kenya

Kavembe, Geraldine D.; Machado-Schiaffino, Gonzalo; Meyer, Axel (Springer Verlag, 2014-11)

Lake Magadi, an alkaline hypersaline lake in Kenya, is one of the most extreme water bodies known. Although its water temperatures often exceed 40°C, a particular lineage of ‘dwarf’ tilapia, Alcolapia grahami, has evolved ...
Rh proteins and NH4(+)-activated Na+-ATPase in the Magadi tilapia (Alcolapia grahami), a 100% ureotelic teleost fish.

Kavembe, Geraldine D.; Wood, Chris M.; Nawata, Michele C.; Wilson, Jonathan M.; Laurent, Pierre; Chevalier, Claudine; Bergman, Harold L.; Bianchini, Adalto; Maina, John N.; Johannsson, Ora E.; Bianchini, Lucas F.; Papah, Michael B.; Ojoo, Rodi O. (Company of Biologists, 2013-08-15)

The small cichlid fish Alcolapia grahami lives in Lake Magadi, Kenya, one of the most extreme aquatic environments on Earth (pH ~10, carbonate alkalinity ~300 mequiv l−1). The Magadi tilapia is the only 100% ureotelic ...
Sizes, condition factors and sex ratios of the scattered populations of the small cichlid fish, Alcolapia grahami, that inhabits the lagoons and sites of Lake Magadi (Kenya), one of the most extreme aquatic habitat on Earth

Maina, John N.; Kavembe, Geraldine D.; Papah, Michael B.; Mashiteng, Reatlegile; Wood, Chris M.; Bianchini, Adalto; Bianchini, Lucas F.; Bergman, Harold L.; Johannsson, Ora E.; Laurent, Piere; Chevalier, Claudine; Ojoo, Rodi O. (Springer Netherlands, 2019-08)

Alcolapia grahami is a small cichlid fish that inhabits the scattered lagoons and sites of Lake Magadi (Kenya). Exceptional physiological, morphological, biochemical and behavioural adaptations allow the fish to tolerate ...
Transepithelial potential in the Magadi tilapia, a fish living in extreme alkalinity

Kavembe, Geraldine D.; Wood, Chris M.; Bergman, Harold L.; Bianchini, Adalto; Laurent, Pierre; Maina, John; Johannsson, Ora E.; Bianchini, Lucas F.; Chevalier, Claudine; Papah, Michael B.; Ojoo, Rodi O. (Springer-Verlag, 2012-02)

We investigated the transepithelial potential (TEP) and its responses to changes in the external medium in Alcolapia grahami, a small cichlid fish living in Lake Magadi, Kenya. Magadi water is extremely alkaline (pH = 9.92) ...
The use of non-invasive molecular techniques to confirm the presence of mountain bongo Tragelaphus eurycerus isaaci populations in Kenya and preliminary inference of their mitochondrial genetic variation

Kavembe, Geraldine D.; Faria, P. J.; Jung’a, J. O.; Kimwele, C. N.; Estes, L. D.; Reillo, P. R.; Mwangi, A. G.; Bruford, M. W. (Springer Verlag, 2011-06)

The mountain bongo antelope Tragelaphus eurycerus isaaci has rapidly declined in recent decades, due to a combination of hunting, habitat degradation and disease. Endemic to Kenya, mountain bongo populations have shrunk ...

Browsing Journal Articles by Author "Kavembe, Geraldine D."

Browsing Journal Articles by Author "Kavembe, Geraldine D."

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