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Subtidal cultivation of the American oyster, Crassostrea virginica, utilizing a flexible belt
Title
Subtidal cultivation of the American oyster, Crassostrea virginica, utilizing a flexible belt.
Creator
Creswell, R. LeRoy, Holt, John K., Vaughan, David E., Harbor Branch Oceanographic Institute
Date Issued
1992
PURL
http://purl.flvc.org/FCLA/DT/3340766
Subject Headings
Crassostrea virginica, American oyster, Oyster culture
Format
Document (PDF)
Role of early post-settlement mortality in setting the upper limit of ascidians in Florida epifaunal communities
Title
Role of early post-settlement mortality in setting the upper limit of ascidians in Florida epifaunal communities.
Creator
Dalby, James E., Jr., Young, Craig M., Harbor Branch Oceanographic Institute
Date Issued
1992
PURL
http://purl.flvc.org/FCLA/DT/3350866
Subject Headings
Sea squirts, Oysters, American oyster, Predation (Biology), Mortality
Format
Document (PDF)
Aquaculture report series: Preparation of a manual for the cultivation of the American oyster, Crassostrea virginica, in Florida
Title
Aquaculture report series: Preparation of a manual for the cultivation of the American oyster, Crassostrea virginica, in Florida.
Creator
Creswell, R. LeRoy, Vaughan, David E., Sturmer, Leslie N.
Date Issued
1990-12
PURL
http://purl.flvc.org/fcla/dt/3359239
Subject Headings
Aquaculture report series, American oyster, Aquaculture
Format
Document (PDF)
A study of steady state and kinetic regulation of chloride ion and osmotic pressure in hemolymph of oysters, Crassostrea virginica, exposed to tri-n-butyltin
Title
A study of steady state and kinetic regulation of chloride ion and osmotic pressure in hemolymph of oysters, Crassostrea virginica, exposed to tri-n-butyltin.
Creator
Bokman, Elizabeth, Laughlin, R. B., Jr., Harbor Branch Oceanographic Institute
Date Issued
1989
PURL
http://purl.flvc.org/FCLA/DT/3333173
Subject Headings
Crassostrea virginica, American oyster, Hemolymph, Trialkyltin Compounds, Osmotic Pressure, Chlorides
Format
Document (PDF)
combined effects of low salinity and Dermo on oysters from the St. Lucie Estuary
Title
The combined effects of low salinity and Dermo on oysters from the St. Lucie Estuary.
Creator
Baird, Krystal D., Florida Atlantic University, Roesijadi, Guritno
Abstract/Description
The viability of the eastern oyster, Crassostrea virginica, is designated as an ecological performance measure for the management of freshwater inflows to the St. Lucie Estuary, Florida. Thus, oysters derived from the St. Lucie Estuary were tested for their physiological response to stress, measured as altered condition index and RNA/DNA ratios, resulting from changes in salinity and infection by the protozoan parasite Perkinsus marinus, the agent of Dermo, a common oyster disease. Pilot...
Show moreThe viability of the eastern oyster, Crassostrea virginica, is designated as an ecological performance measure for the management of freshwater inflows to the St. Lucie Estuary, Florida. Thus, oysters derived from the St. Lucie Estuary were tested for their physiological response to stress, measured as altered condition index and RNA/DNA ratios, resulting from changes in salinity and infection by the protozoan parasite Perkinsus marinus, the agent of Dermo, a common oyster disease. Pilot studies consisted of the development of a real-time PCR-based assay for P. marinus infection, procedures to infect oysters with the pathogen by injection method and procedures for the measurement of RNA/DNA ratios. The general experimental design was to assess the response of non-injected and injected C. virginica to low salinity challenges. Two scenarios for salinity stress were tested: one in which oysters were subjected to a single reduction in salinity and one in which an initial reduction in salinity was followed by a recovery phase and then subjected to a second challenge of reduced salinity. Condition index was more responsive to changes in salinity regimes than to P. marinus infection. Changes in the RNA/DNA ratio were responsive to the infection status, but not changes in salinity; the pattern of change in the RNA/DNA ratio generally followed changes in the measured levels of infection. The lack of mortalities showed that these oysters were able to tolerate short periods of reduced salinity.
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Date Issued
2006
PURL
http://purl.flvc.org/fcla/dt/13335
Subject Headings
Freshwater ecology, Ecosystem management, Water quality management, American oyster--Florida, Saint Lucie River Estuary (Fla ), Salinity--Physiological effect
Format
Document (PDF)
Effects of freshwater discharges and habitat architecture on oyster reef community development and diversity
Title
Effects of freshwater discharges and habitat architecture on oyster reef community development and diversity.
Creator
Salewski, Elizabeth a., Charles E. Schmidt College of Science, Center for Environmental Studies
Abstract/Description
Oyster reefs support diverse estuarine communities and food webs. Factors controlling oyster reef community development were studied on restored reefs in the St. Lucie Estuary. Freshwater discharges create stresses that cause oyster mortality, habitat loss and reduction in reef community diversity. Using structural equation modeling, it was demonstrated that salinity, turbidity, and chlorophyll-a gradients influence oysters and some reef invertebrate species, but did not support the...
Show moreOyster reefs support diverse estuarine communities and food webs. Factors controlling oyster reef community development were studied on restored reefs in the St. Lucie Estuary. Freshwater discharges create stresses that cause oyster mortality, habitat loss and reduction in reef community diversity. Using structural equation modeling, it was demonstrated that salinity, turbidity, and chlorophyll-a gradients influence oysters and some reef invertebrate species, but did not support the predictions of the Intermediate Disturbance Hypothesis. In contrast, diversity and species richness were greatest at low stress sites. A field experiment showed that topographic relief and architectural complexity enhanced colonization and growth of reef-building species (e.g.oysters and mussels). The relief by complexity interaction had a higher order, synergistic effect on oyster abundance. When considered separately, increasing relief further enhanced dominant sessile taxa (cirripeds and ascideans) ; while, increasing complexity supported greater species richness and the abundance of cirripeds.
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Date Issued
2012
PURL
http://purl.flvc.org/FAU/3355881
Subject Headings
American oyster, Reef ecology, Habitat conservation, Predation (Biology)
Format
Document (PDF)
Passive acoustics as a monitoring tool for evaluating oyster reef restoration
Title
Passive acoustics as a monitoring tool for evaluating oyster reef restoration.
Creator
Zenil Becerra, Hilde P., Charles E. Schmidt College of Science, Center for Environmental Studies
Abstract/Description
Oyster reefs are biodiverse communities that provide many ecological and commercial benefits. However, oyster reefs have declined around the world from human activities. Oyster reef restoration programs have begun to limit some of the decline, but the need for determining the success of a program has been problematic. Passive acoustic techniques can use naturally occurring sounds produced by organisms to assess biodiversity. Passive acoustics was utilized to compare the sounds in natural and...
Show moreOyster reefs are biodiverse communities that provide many ecological and commercial benefits. However, oyster reefs have declined around the world from human activities. Oyster reef restoration programs have begun to limit some of the decline, but the need for determining the success of a program has been problematic. Passive acoustic techniques can use naturally occurring sounds produced by organisms to assess biodiversity. Passive acoustics was utilized to compare the sounds in natural and restored oyster reefs, with special attention on snapping shrimp (Alpheus spp.) snap sounds, in the St. Lucie Estuary, Florida over a one year period. Season, estuary region, habitat and day period had an effect on sound production. Passive acoustic monitoring of snapping shrimp sound production may be a useful non-destructive technique for monitoring the progress of oyster reef restoration projects once further correlations are established between environmental effects and sound production.
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Date Issued
2012
PURL
http://purl.flvc.org/FAU/3352882
Subject Headings
American oyster, Ecosystem management, Restoration ecology, Aquatic ecology, Underwater acoustics
Format
Document (PDF)