TPWD briefing: oyster harvests remain below historic levels; restoration, buyback and mariculture work under way

At a May 22 briefing, Coastal Fisheries Director Robin Rikers told the Texas Parks and Wildlife Commission that public oyster harvests in recent seasons are substantially below levels recorded before major storm events. Rikers said years of episodic freshwater events and storm impacts have reduced standing oyster populations and changed the distribution of harvests among bays.

Rikers reviewed data showing public commercial harvest has declined from peaks of several hundred thousand sacks per year in the 2000s to more recent levels closer to 200,000 sacks. (A sack is defined as 10 pounds and typically contains roughly 200 oysters; ex‑vessel value has ranged in the millions of dollars.) Rikers and presenters said Galveston Bay historically contributed a large share of harvest but has been vulnerable to major mortality events following storms and extended freshwater conditions.

Rikers outlined a multi‑part response: an oyster buyback program, expansion of cultivated oyster mariculture and certificates of location (COL) for private production and restoration, and large‑scale restoration projects supported by Natural Resource Damage Assessment (NRDA) Deepwater Horizon funds. The department has restored more than 1,800 acres of oyster reef since Hurricane Ike and more than 100 acres using House Bill 51 funding and cultured material.

On buybacks, staff said the agency moved from a reverse‑bid process to a flat‑price offer of $30,000 per qualifying commercial license after limited uptake. That offer opened March 14 and closes May 31; staff reported 81 applications in process at the briefing. Rikers noted philanthropic partners may supplement state funds and that discussions with donors remain active.

Rikers described restoration projects in East and Upper Galveston Bay totaling about 87 acres and estimated at $16 million supported by NRDA funds; these reefs are planned as non‑harvestable to maximize ecological benefit. A Mission‑Aransas estuary restoration grant will test a network of sanctuary (non‑harvestable) reefs intended to seed adjacent harvestable reefs.

On monitoring and methods, staff said they are using hydraulic tong sampling in addition to dredge sampling, reviewing stock‑assessment techniques and testing restoration materials and configurations (thin layers vs. deeper mounds) to identify cost‑effective approaches.

Commissioners asked multiple questions about license activity, economic value and enforcement options. Staff said 56% of buyback applicants had recent landings (three of the last five years) and that enforcement could implement vessel inspection or other criteria to verify intent to use licenses, but that program design and legal issues would need development. Commissioners asked staff to prepare draft options on relicensing criteria, gear distinctions (for example, dredge size), and potential progressive or tiered fee structures tied to vessel capacity.