ArticleScientific reports2016
Mammalian metabolic rates in the hottest fish on earth.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Gill ionocytes of the Lake Magadi tilapia (Oreochromis Alcolapia grahami), an extremophilic teleost native to a highly alkaline environment.Cell and tissue research · 2026Article
- A 30-year retrospective on the respirometric method for measuring instantaneous metabolic fuel use in fish.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026Review
- Heat Tolerance and Its Plasticity in Freshwater and Marine Fishes Reflect Exposure to Extremes and Seasonal Variation in Habitat Temperatures.Ecology letters · 2026Review
- Limits of temperature adaptation and thermopreferendum.Cell & bioscience · 2021Article
- Exploring the Expression of Cardiac Regulators in a Vertebrate Extremophile: The Cichlid FishJournal of developmental biology · 2020Article
- Adaptation of the carbamoyl-phosphate synthetase enzyme in an extremophile fish.Royal Society open science · 2020Article
- Fasting in the ureotelic Lake Magadi tilapia,Conservation physiology · 2019Article
- Comparative Physiology of Energy Metabolism: Fishing for Endocrine Signals in the Early Vertebrate Pool.Frontiers in endocrinology · 2017Review
- Niche divergence facilitated by fine-scale ecological partitioning in a recent cichlid fish adaptive radiation.Evolution; international journal of organic evolution · 2016Article
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
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 extreme O2, ROS, and temperature regimes. In contrast to most fishes which live at temperatures substantially lower than the 36-40 °C of mammals and birds, an isolated population (South West Hot Springs, SWHS) of Magadi tilapia thrives in fast-flowing hotsprings with daytime highs of 43 °C and night-time lows of 32 °C. Another population (Fish Springs Lagoon, FSL) lives in a lagoon with fairly stable daily temperatures (33-36 °C). The upper critical temperatures (Ctmax) of both populations are very high; moreover the SWHS tilapia exhibit the highest Ctmax (45.6 °C) ever recorded for a fish. Routine rates of O2 consumption (MO2) measured on site, together with MO2 and swimming performance at 25, 32, and 39 °C in the laboratory, showed that the SWHS tilapia exhibited the greatest metabolic performance ever recorded in a fish. These rates were in the basal range of a small mammal of comparable size, and were all far higher than in the FSL fish. The SWHS tilapia represents a bellwether organism for global warming.
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