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TPWD staff proposes tightly constrained permit path for commercial dotted‑duckweed cultivation; commissioners ask for more risk analysis
Summary
Staff recommended publishing rule changes to allow commercial aquaculture of dotted duckweed in enclosed, biosecure facilities under permit with strict site exclusions; commissioners raised concerns about escape, flood risk, and insufficient historical evidence and asked staff for a fuller risk profile before posting.
TPWD staff presented a petition‑driven rulemaking proposal on Aug. 20 to allow commercial cultivation of dotted duckweed (a small, fast‑growing floating aquatic plant) in specifically permitted, biosecure aquaculture facilities.
Michael Tennant, regulations and policy manager in Inland Fisheries, said a company (Plantable Foods) petitioned TPWD to authorize commercial production under an exotic species aquaculture facility permit and that staff’s site visit and analysis indicated the petition could be…
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