Trophic status and ecosystem functioning of tropical lake Tinshu Abaya, Ethiopia: A mass-balance modeling approach
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00646908" target="_blank" >RIV/60077344:_____/25:00646908 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12520/25:43910042
Result on the web
<a href="https://doi.org/10.1002/iroh.70018" target="_blank" >https://doi.org/10.1002/iroh.70018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/iroh.70018" target="_blank" >10.1002/iroh.70018</a>
Alternative languages
Result language
angličtina
Original language name
Trophic status and ecosystem functioning of tropical lake Tinshu Abaya, Ethiopia: A mass-balance modeling approach
Original language description
Freshwater ecosystems are highly susceptible to degradation, underscoring the importance of assessing their health using ecological indicators. In this study, we developed an Ecopath mass-balance model for Lake Tinshu Abaya, Ethiopia, and analyzed its trophic structure and energy flows. The model integrated seven functional groups using data on fish catch, diet composition, and plankton biomass collected from March to August 2022. The seven functional groups were detritus, phytoplankton, herbivorous zooplankton, carnivorous zooplankton, zoobenthos, Nile Tilapia (Oreochromis niloticus), and birds. Four trophic levels were determined, ranging from 1.00 for primary producers and detritus to 3.56 for birds of prey. The calculated values for the EE of the primary producers (phytoplankton: 0.87., detritus: 0.75) indicated that they were highly exploited compared to the secondary producers, the herbivorous zooplankton (0.40), the carnivorous zooplankton (0.065), and the zoobenthos (0.60). The computed primary production to total respiration (P/R) ratio of 1.19 suggested that the ecosystem is in a developing, net autotrophic state. The ecosystem exhibited a high degree of internal recycling (Finn's Cycling Index = 15.2%), reflecting efficient energy and nutrient utilization. The trophic connectivity index of 0.56 suggested a moderately interconnected food web. Collectively, these metrics indicate that Lake Tinshu Abaya is a developing ecosystem in a transitional stage, not yet having reached full ecological maturity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10503 - Water resources
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Review of Hydrobiology
ISSN
1434-2944
e-ISSN
1522-2632
Volume of the periodical
110
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
100-108
UT code for WoS article
001560755300001
EID of the result in the Scopus database
2-s2.0-105014623796