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Review of current state of knowledge of microcystin and its impacts on fish in Lake Victoria

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dc.contributor.author David M Onyango, Paul S Orina, Rose C Ramkat, Chrispine Kowenje, Cecilia M Githukia, Dorcas Lusweti, Henry BO Lung'ayia
dc.date.accessioned 2020-08-28T07:06:55Z
dc.date.available 2020-08-28T07:06:55Z
dc.date.issued 2020-07-03
dc.identifier.uri https://repository.maseno.ac.ke/handle/123456789/2494
dc.description The article can be accessed in full text via URL;https://onlinelibrary.wiley.com/doi/full/10.1111/lre.12328 en_US
dc.description.abstract Microcystins are part of algal toxins produced intracellularly within algal cells, being in the family of hepatotoxic cyclic peptides from various species of blue‐green algae. Blue‐green algae are widely abundant in many equatorial eutrophic lakes, including Lake Victoria, with microcystin mainly from cyanobacterial blooms released into the water column, with different effects along the aquatic ecosystem trophic levels. Depending on the length of exposure and exposure route, microcystin effects on fish can include embryonic hatching perturbations, reduced survival and growth rates, changes in behavior, osmoregulation, increased liver activities and heart rates, as well as histopathological effects. While bioaccumulation is confirmed among fish, biomagnification along food webs is debatable. Lake Victoria the second largest freshwater lake in the world, and the source of livelihoods to millions reported near the gulf and shore MCs of 190 ± 51 to 543 ± 26 ng MC/g DW, respectively. Little is known, however, on the effects of microcystin on the Lake Victoria fishery and, ultimately, on the human population against the WHO recommended human microcystin intake levels of 0.04 µg/kg, thereby being the basis for this review. en_US
dc.description.sponsorship National Research Fund, NRF. Grant Number: NRF/R/2016/FORM‐1A en_US
dc.publisher Lakes and reserviors,science,policy and management for sustainable use en_US
dc.subject Fish,impact,lake victoria,microcystin,review en_US
dc.title Review of current state of knowledge of microcystin and its impacts on fish in Lake Victoria en_US
dc.type Article en_US


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