Open Access
Table 2
Summary of RRA responses on invasion pathway and impacts of O. niloticus in Panam Reservoir.
| Thematic category | Key observation from respondents | No. of respondents | % respondents | Interpretation |
|---|---|---|---|---|
| Introduction pathway | Escape from cage culture | 29 | 82.9 % | Primary entry pathway |
| Not aware | 6 | 17.1 % | Knowledge gap | |
| Spread and dominance | Tilapia dominant in present catches | 28 | 80.0% | Established population |
| Native fish decline | Decline of Labeo spp. | 20 | 57.1% | Perceived decline |
| Decline of carps | 26 | 74.3% | Major decline group perceived | |
| Decline of catfishes | 12 | 34.3% | Moderate decline perceived | |
| Ecological changes | Increase in water turbidity | 14 | 40 % | Feeding disturbance noticed |
| Reduction in macrophytes | 9 | 25.7% | Relatively low perception of grazing pressure | |
| Fishery impact | Lower market value of catch | 26 | 74.3% | Economic concern |
| Higher biomass but lower income | 21 | 60.0% | Quantity vs value issue | |
| Management perception | Tilapia considered harmful | 29 | 82.9% | Negative perception |
| Need for control measures | 31 | 88.6% | Strong consensus |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.