# trophic state index

> trophy index based on the amount of biological productivity

**Wikidata**: [Q30599066](https://www.wikidata.org/wiki/Q30599066)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Trophic_state_index)  
**Source**: https://4ort.xyz/entity/trophic-state-index


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)