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  • 1
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    Oyster Studies Along the Texas Coast, 1968 (2021)
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14240 | 9596 | 2020-08-31 20:19:08 | 14240 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Oyster (Crassostrea virginica) studies showed death rates to be low in Aransas and Galveston Bays but relatively high in Matagorda Bay. Initial mortality in Matagorda Bay was associated with freshwater and siltation but subsequent summer deaths were associated with Labyrinthomyxa infection.
    Keywords: Ecology ; oysters ; Crassostrea virginica ; mortality ; oyster fisheries ; Labyrinthomyxa sp. ; fungal diseases ; stock assessment ; GBIC
    Repository Name: AquaDocs
    Type: book_section
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  • 2
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    Oyster (Crassostrea virginica) Mortality Studies Along the Texas Coast (2021)
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14249 | 9596 | 2020-08-31 20:09:09 | 14249 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Mortality rates among oysters (Crassostrea virginica) of different sizes and from different bay areas were compared in three separate studies in Galveston, Matagorda, and Aransas Bays. A general pattern of spring and late summer mortality cycles was observed in Galveston and Aransas Bays with higher mortalities occurring in late summer. An unusual fall (November) mortality period was observed in Matagorda Bay. Dermocystidium appeared to be the major cause of mortality among oyster stocks in Galveston Bay but was not responsible for the extreme mortalities in Matagorda and Aransas Bays. The presence of Aransas Bay Organisms (ABO) in these areas was suspected but not confirmed.
    Keywords: Ecology ; oysters ; Crassostrea virginica ; mortality ; Dermocystidium marinum ; fungal diseases ; GBIC
    Repository Name: AquaDocs
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  • 3
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    Hydrographic and climatological data (2021)
    Texas Game and Fish Commission | Rockport, Texas (USE "TX")
    In:  http://aquaticcommons.org/id/eprint/14224 | 9596 | 2020-08-28 14:58:00 | 14224 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Twenty stations were established in Galveston Bay to maintain records of hydrographic and climatological conditions as an aid in evaluating ecological changes in the bay.
    Description: Oyster Investigations, Galveston Bay
    Keywords: Atmospheric Sciences ; Ecology ; hydrography ; climatology ; ecology ; water sampling ; GBIC
    Repository Name: AquaDocs
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  • 4
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    Study of the Oyster Population in the Galveston Bay Area - Survey of Oyster Populations and Associated Organisms (2021)
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14281 | 9596 | 2020-08-28 15:31:05 | 14281 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: The sample abundance of oyster (Crassostrea virginica) spat decreased in 1963 as compared to 1962, and a further decline occurred in 1964. Seed oysters also declined in sample abundance during 1963 as a result of poor survival among the 1963 (and possibly 1962) oyster spat sets. The seed stock increased slightly during the fall 1964, indicating better survival of the 1964 oyster spat set. Market oysters were abundant in the samples during 1963 but decreased considerably in 1964.
    Description: Survey of oyster populations and associated organisms
    Keywords: Biology ; Fisheries ; GBIC ; oysters ; Crassostrea virginica ; abundance ; stock assessment ; spat ; seed ; oyster fisheries ; Dermocystidium marinum ; fungal diseases ; survival ; mortality
    Repository Name: AquaDocs
    Type: book_section
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    Format: 19
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  • 5
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    Study of the Oyster Population on Public Reefs in Galveston Bay during 1966 (2021)
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14259 | 9596 | 2020-08-28 15:44:59 | 14259 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Public reefs in Galveston Bay and East Bay were sampled monthly to determine seasonal changes in oyster (Crassostrea virginica) stocks.
    Keywords: Ecology ; oysters ; Crassostrea virginica ; seasonal variations ; oyster fisheries ; Dermocystidium marinum ; fungal diseases ; seed ; stock assessment ; GBIC
    Repository Name: AquaDocs
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  • 6
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    Oyster Studies, 1969 (2021)
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14270 | 9596 | 2020-08-31 20:15:29 | 14270 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Oyster sampling was conducted in Galveston Bay, Texas. Monitoring of 1965, 1966, and 1967 year class oysters at two tray stations indicated a relatively low annual mortality rate of under 20%. Peak death rates, associated with Labyrinthomyxa infection, occurred in late summer. Moderate oyster spat setting occurred in the mid-bay area beginning in July. Survival was good and seed stock increased. Labyrinthomyxa marina infection among market oyster stocks remained below epidemic level and more oysters were available to the fishermen. Oystering was again centered in the mid-bay area and was judged to be relatively heavy. The harvest of 173,300 barrels was 22 percent higher than that of the previous season.
    Keywords: Ecology ; Fisheries ; oysters ; oyster fisheries ; spat ; larval settlement ; mortality ; Labyrinthomyxa marina ; fungal diseases ; stock assessment ; GBIC
    Repository Name: AquaDocs
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  • 7
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    Summary of Oyster Studies Along the Texas Coast (2021)
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14187 | 9596 | 2020-08-31 20:28:40 | 14187 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: The intensity of 1963 oyster (Crassostrea virginica) spat set was generally less than that observed in 1962. The set appeared to be more abundant along the lower coast than on the upper coast. A decline in apparent abundance of year old seed stock was noted, beginning in late spring. Unlike 1962 little increase in the abundance of seed oysters occurred during the fall.
    Keywords: Fisheries ; Oceanography ; oysters ; Crassostrea virginica ; abundance ; spat ; mortality ; infectious diseases ; oyster fisheries ; diseases
    Repository Name: AquaDocs
    Type: book_section
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    Format: 13
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  • 8
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    Survey of oyster spat setting and survival (2021)
    Texas Game and Fish Commission | Rockport, TX
    In:  http://aquaticcommons.org/id/eprint/14220 | 9596 | 2020-08-31 20:17:46 | 14220 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Weekly oyster spatfall was determined by use of spat collectors placed at three stations in Galveston Bay.
    Keywords: Ecology ; oysters ; spat ; oyster culture ; seed collection ; larval settlement ; GBIC
    Repository Name: AquaDocs
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    Format: 9
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  • 9
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    Summary of Oyster Studies Along the Texas Coast - Survey of Oyster Populations and Associated Organisms (2021)
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14279 | 9596 | 2020-08-28 15:43:01 | 14279 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Both seed oyster Crassostrea virginica stock and market oyster stock continued to decline in Aransas, San Antonio, Matagorda, and Galveston Bays. Losses appeared to be most severe in the Aransas Bay area, diminishing up the coast to Galveston Bay. Much of the loss in the middle coast was attributed to Aransas Bay disease which affected young seed oysters as well as the older market oysters. The disease was found in 1963 in Aransas Bay and was apparently associated with the moralities in San Antonio and Lavaca Bays. During 1964 the disease spread into Copano Bay, most of San Antonio Bay, Lavaca Bay, and Matagorda Bay. The organism responsible for Aransas Bay disease was identified by Dr. J.G. Mackin as an intre-cell organism similar to that associated with Malpeque Bay disease in Canadian waters. Sever moralities in Tres Palacios Bay appeared to be caused by Dermocystidium marinum judging by the high infection incidence found in samples during the late summer. However, the catastrophic losses among seed oysters was more characteristic of Aransas Bay disease. In Galveston Bay Dermocstidium spread further up the bay than in 1963 and was assumed to be the primary cause of oyster moralities. Tray studies at two stations showed an annual mortality rate of approximately 50 percent, both in 1963 and 1964. Most of the mortality at each station was due to Dermocystidium. Oyster production, in spite of high moralities, set a new record during the 1964-65 season. Most of the harvest came from Galveston Bay where heavy fishing pressure compensated for the relatively low abundance of market oysters.
    Keywords: Biology ; Fisheries ; GBIC ; oysters ; Crassostrea virginica ; stock assessment ; seed ; mortality ; Dermocystidium marinum ; fungal diseases ; oyster fisheries
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 5
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