Sammy Ray, Texas A&M University at Galveston, Galveston, TX

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Presentation transcript:

PROCESSED WASTE WATER: POTENTIAL TOOL FOR PROMOTING OYSTER REEFS IN HIGH-SALINITY WATERS. Sammy Ray, Texas A&M University at Galveston, Galveston, TX Ayal Anis, Texas A&M University at Galveston, Galveston, TX Antonietta Quigg, Texas A&M University at Galveston, Galveston, TX Lalise Mason, Scenic Galveston, Galveston, TX A pilot study is underway to determine the feasibility of using the daily production of 10 to 12 million gallons of processed industrial waste water to manage (reduce) the ambient salinity in a small embayment (Swan Lake) in lower Galveston Bay, Texas. The oyster population in Swan Lake is heavily impacted by Dermo disease (Perkinsus marinus) and the Southern Oyster Drill (Stramonita (Thais) haemastoma). This two year study will include hydrographic measurements, oyster recruitment, oyster meat index, Dermo disease level and assessments of phytoplankton population at several sites in and adjacent to Swan Lake (surface area: 630 acres/259 hectares). Comments concerning oyster reef restoration in the Gulf of Mexico will be presented.

Galveston Bay System

Life cycle of perkinsus marinus (Dermo)

Cultured Dermo, gill (x80)

Southern Oyster Drill (Stramonita haemastoma)

Southern Oyster Drill Egg Cases

Spat Collection Box

Biblical confirmation of the value of fresh water inflow to maintain healthy bays Ezekiel 47 The River From the Temple Verses 8-10 He said to me, "This water flows towards the eastern region and goes down into the Arabah, where it enters the Sea. When it empties into the Sea, the water there becomes fresh. Swarms of living creatures will live wherever the river flows. There will be large numbers of fish, because this water flows there and makes the salt water fresh; so where the river flows everything will live. Fishermen will stand along the shore; from En Gedi to En Eglaim there will be places for spreading nets. The fish will be of many kinds--like the fish of the Great Sea.

Acknowledgements This project is supported by Perley G. Jr. and Kathreen Parr Gift Fund and the General Land Office CMP13. Federico Alvarez and Pak T. Leung for assistance with power point presentation.

West Bay Oyster Landings

West Bay oysters harvested from 1972-2007

Spat set, inside of an oyster box

Oyster wrapped up with spat

Aransas Bay spat (10-16-08)

Oyster Sentinel Gulf Wide Coverage

Most Recent Dermo Hot Spots