Hecky, R.E.Fee, E.J.Kling, H.Rudd, J.W.M.2015-12-072015-12-071978-12Cat. no. Fs 97-6/81607017626Waves CATNO 59418http://hdl.handle.net/1993/30965Two biological surveys were carried out on Lake Tanganyika. The first cruise was at the end of the wet season (April-May) when phytoplankton biomass was low and the second was at the end of the dry season (September-October) when biomass was high. The parameters measured were: temperature profiles, Secchi disk and quantum meter transparencies, chlorophyll, major ions and nutrients, phytoplankton, bacterial and protozoan biomass, primary production, plankton respiration rates, methane concentration profiles and methane oxidation rates.engTanzaniaTanganyika L.biological surveysplanktonologyprimary productionfishery resourcesplankton feedersphytoplanktonchlorophyllslimnologychemosynthesiscruisestrophodynamic cycleTechnical Report