Galveston Bay oyster reef survey. Volume I: Technical reports. Volume II: Map atlas.

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Show simple item record Powell, Eric N.; Song, J.; Ellis, M.; Choi, K. en_US
dc.contributor.editor en_US
dc.contributor.other en_US 2010-02-15T17:32:23Z 2010-02-15T17:32:23Z 1997 en_US
dc.description 2 volumes; available for download at the link below. en_US
dc.description.abstract Report I: Oyster reefs make up one of the primary geological features of Galveston Bay. They affect current flow and salinity and provide a primary substrate for a wide variety of hard-bottom invertebrates and fish. The commercial oyster fishery in Galveston Bay is one of the more important ones in the U.S. and the private (or noncommercial) harvest of shellfish in Texas ranks third in the country. Accordingly, the oyster reefs play a pivotal geological, ecological and commercial role in Galveston Bay. The purpose of this study was to survey the oyster reefs of Galveston Bay and compare them to earlier surveys. Of particular importance were concerns about the perceived loss of reef area and the lowering of relief on the remaining reefs. The primary objectives of this study were to resurvey the aerial extent and relief of the principal reefs in Galveston Bay.; Report II: Oysters are generally considered to respiratory best at moderate salinities (12-20 ppt). Factors restricting oyster production outside this salinity range include increased respiratory demand, decreased filtration rate, and mortality at lower salinity and predation and disease at higher salinities. Production on reefs, however, is significantly affected by variables like food supply and rate of recruitment that might follow salinity in a more complex way. In addition, the direct affect of the commercial fishery is poorly known. Some reefs are heavily fished, others are less so, in the same salinity regime. Accordingly, the production of oyster populations might not be a simple function of salinity, and, indeed, the accompanying survey of reef accretion and loss over a 20 year interval in Galveston Bay did not reveal a clear trend with the prevailing salinity gradient over that time. Moderate salinity areas, on the average, accreted more new reef, however areas of similar salinity accreted and lost reef area during this time over much of the salinity gradient in the bay. en_US
dc.description.uri en_US
dc.publisher Galveston Bay National Estuary Program en_US
dc.relation.ispartofseries 8543 en_US
dc.relation.uri en_US
dc.subject oyster reefs; oyster fisheries; accretion; circulation; salinity effects; subsidence; habitat loss; habitat restoration; habitat modification; habitat degradation; habitat improvement; population dynamics; food availability; currents; inflow; biological production; perkinsus marinus; biogeography; rangia cuneata; oyster culture; fishery management; monitoring; artificial reefs en_US
dc.title Galveston Bay oyster reef survey. Volume I: Technical reports. Volume II: Map atlas. en_US
dc.type Technical Report en_US Webster, Texas en_US
dc.series GBNEP-50 en_US
dc.vol-issue en_US
dc.geo-code Galveston Bay; East Bay; Trinity Bay; Red Bluff; Clear Lake; Clear Lake Channel Reefs; Dickinson Bay; West Bay; North Redfish Bar; Redfish Bar; Houston Ship Channel; Red Bluff Reef; Trinity Reef; Redfish Reef; Pelican Island Embayment; Morgan's Point; Morgan's Point Reefs; North Redfish Reef; April Fools Reef; Bart's Pass Reef; Big Beezley Reef; Bull Hill; Bull Shoals; Confederate Reef; Dollar Reef; Dow Reef; East Redfish Reef; South Redfish Reef; Vingt-et-un Reef; Tern Reef; Stephensen Reef; Fisher Reef; Four Bit Reef; Frenchy's Reef; Gales Reef; Gaspipe Reef; Half Moon Reef; Lost Beezley Reef; Levee Reef; Lone Tree Reef; Mattie B. Reef; Whitehead Reef; Todd's Dump; Shell Island Reef; South Deer Island Reef; Middle Reef; Greens Cut; Carancahua Reef; North Deer Island Reefs; Hannah's Reef; Pepper Grove Reefs; Possum Pass Reef; Richards Reef; San Leon Reef; Scott Reef en_US
dc.location GBIC Circulating Collection; GBIC Reference Collection; GBIC Archival Collection; GBIC OFFICE en_US
dc.scale en_US
dc.latitude en_US
dc.longitude en_US
dc.contract-no en_US
dc.notes This publication contains two reports. A summary for each is listed.; Volume I refers to a set of maps that make up Volume II. Reproducing the large color maps was cost prohibitive, therefore, a set is available for viewing at the Galveston Bay Information Center Office at Texas A&M University at Galveston. Please contact our office at 409-740-4703 to review these. draft maps of Volume II. en_US en_US
dc.acquisition-src GBEP en_US
dc.description-other en_US en_US
dc.history 2/2/05 eas; 12/15/04 eas; 12/10/04 eas; 11/23/04 eas en_US QH 541.5 .E8 G32 no. 50 v. 1 c.1-2 GBAY; REF QH 541.5 .E8 G32 no.50 v. 1 GBAY; ARCHIVE QH 541.5 .E8 G32 no. 50 v. 1 GBAY en_US

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