Quantity
Weight landed under a defined reporting system. It may change with effort, access, reporting and species mix.
Lake, route, work and habitat
Reservoir levels, inflow, fisheries, navigation, closures, springs, sediment and water quality operate on different clocks. Catch quantity cannot by itself establish ecological health, household income or fair distribution.

Data story held to evidence
No annual values are shown because the build received no source table. The accessible structure below records exactly what a later series must disclose.
| Year / season | Catch quantity | Species or group composition | Landing or sale value | Income evidence | Closure / method note |
|---|---|---|---|---|---|
| Source year required | Not supplied | Not supplied | Not supplied | Not supplied | Definitions and coverage needed |
Weight landed under a defined reporting system. It may change with effort, access, reporting and species mix.
The share of species or groups. Comparable taxonomy and sampling matter.
Price multiplied by recorded quantity under a stated price concept. Nominal and real values differ.
Household or worker earnings after costs and distribution. It cannot be inferred directly from total landed value.
Seasonal system
Text equivalent: Rainfall and catchment conditions affect inflow. Reservoir operation and inflow affect level. Level and erosion interact with sediment, habitat, water quality, navigation and access. Governance and household resources shape who benefits or bears costs.
| System part | Measure | Needed context | Unsupported shortcut |
|---|---|---|---|
| Reservoir level | Gauge and date | Operating rule, inflow, drawdown | Level alone explains a livelihood outcome |
| Springs | Flow, reliability, quality | Season, source protection, travel, household demand | One spring represents the district |
| Closure | Rule, dates, scope, enforcement | Ecological objective and support arrangements | Closure proves stock recovery or income loss |
| Water quality | Parameter and sampling method | Site class, season, laboratory and threshold | A visual observation proves safety |
Editorial image · generated, not documentary evidence