2 Works

Life history shifts in an exploited African fish following invasion by a castrating parasite

Nestory Peter Gabagambi, Arne Skorping, Mwita Chacha, Kwendwa Jonathan Kihedu & Adele Mennerat
Evolutionary theory predicts that infection by a parasite that reduces future host survival or fecundity should select for increased investment in current reproduction. In this study we use the cestode Ligula intestinalis and its intermediate fish host Engraulicypris sardella in Wissman Bay, Lake Nyasa (Tanzania) as a model system. Using data about infection of E. sardella fish hosts by L. intestinalis collected for a period of 10 years, we explored whether parasite infection affects the...

Newly discovered cichlid fish biodiversity threatened by hybridization with non-native species - Data supporting published version

Martin Genner, Tabitha Blackwell, Antonia Ford, Adam Ciezarek, Stephanie Bradbeer, Carlos Gracida-Juarez, Alan Smith, Benjamin Ngatunga, Asilatu Shechonge, Rashid Tamatamah, Graham Etherington, Wilfried Haerty, Federica Di Palma & George Turner
Invasive freshwater fish systems are known to readily hybridize with indigenous congeneric species, driving loss of unique and irreplaceable genetic resources. Here we reveal that newly discovered (2013-2016) evolutionarily significant populations of Korogwe tilapia (Oreochromis korogwe) from southern Tanzania are threatened by hybridization with the larger invasive Nile tilapia (Oreochromis niloticus). We use a combination of morphology, microsatellite allele frequencies and whole genome sequences to show that O. korogwe from southern lakes (Nambawala, Rutamba and...

Registration Year

  • 2020
    2

Resource Types

  • Dataset
    2

Affiliations

  • Tanzania Fisheries Research Institute
    2
  • Bangor University
    1
  • Earlham Institute
    1
  • University of Bergen
    1
  • University of Dar es Salaam
    1
  • University of Hull
    1
  • University of Bristol
    1