Oyster population trends in Galveston Bay, 1973-1978

Simple item page
dc.acquisition-srcen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorHofstetter, R.P.en_US
dc.contributor.otheren_US
dc.date.accessioned2010-02-15T16:55:18Z
dc.date.available2010-02-15T16:55:18Z
dc.date.issued1983en_US
dc.degreeen_US
dc.description33 pagesen_US
dc.description-otheren_US
dc.description.abstractSevere flooding on the Trinity River in 1973 destroyed oyster (Crassostrea virginica) populations in Trinity Bay and damaged those in the major harvest area in central Galveston Bay. Recovery was slow. Poor reproduction during 1975, 1976 and 1977 caused near depletion of oyster populations by spring 1978. However, abundant spat setting during 1978 resulted in an increase in small (seed) oysters in fall. Because market size oysters were scarce and seed oysters vulnerable to damage from oyster dredging, oystering in Galveston Bay was prohibited by proclamation of the Texas Parks and Wildlife Department (TPWD) effect 15 December 1978. Seasonal oyster harvests from public reefs in Galveston Bay ranged from 1.1 million kg (2.4 million lb) during 1976-77 to 8.7 thousand kg (19.2 thousand lb) during the abbreviated (45 day) 1978-79 seasons. As market oysters became scarce in Galveston Bay, oystering increased in mid-central bays. During the 1978-79 season, San Antonio Bay became the leading oyster producing area. The harvest of 359.5 thousand kg (792.7 thousand lb) established a record for that bay system. Private oyster lease production (confined to Galveston Bay) set a new record of 5861 meters cubed (7666.2 yards cubed). During 1976 only to be broken in 1977 when 7261 meters cubed (9497.4 yards cubed) were reported. Over a 23-year period, a decline in sample abundance of spat and small oysters has been observed although market oyster stocks remained relatively constant. A relationship between spring salinity values and spat setting was noted. Best spat sets usually occurred when salinity ranged 17-24 parts per thousand during spring. When salinity fell below 8 parts per thousand substantial spat sets did not occur.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeGalveston Bayen_US
dc.geo-codeTrinity Bayen_US
dc.geo-codeTrinity Riveren_US
dc.history10/18/04 eas; 10/15/04 easen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/20035
dc.latitudeen_US
dc.locationAvailable for download at the link below.en_US
dc.longitudeen_US
dc.notesen_US
dc.placeAustin, TXen_US
dc.publisherTexas Parks and Wildlife Department, Coastal Fisheries Branchen_US
dc.relation.ispartofseries226en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesManagement Data Series No. 51en_US
dc.subjectoyster fisheriesen_US
dc.subjectCrassostrea virginicaen_US
dc.subjectabundanceen_US
dc.subjectpopulation dynamicsen_US
dc.subjectspaten_US
dc.subjectfloodingen_US
dc.subjectsalinity effectsen_US
dc.titleOyster population trends in Galveston Bay, 1973-1978en_US
dc.typeTechnical Reporten_US
dc.universityen_US
dc.vol-issueManagement Data Series No. 51en_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
226-Oyster Population Trends in Galveston Bay 1973-1978.pdf
Size:
1.39 MB
Format:
Adobe Portable Document Format
Description:
226-Oyster Populations Trends in Galveston Bay 1973-1978
Download

Collections

Galveston Bay Bibliography
GBIC Full Text