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  • habitat improvement  (3)
  • Biomass
  • Chemistry
  • Humans
  • Mice
  • 2020-2022  (4)
  • 1
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    Unknown
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14275 | 9596 | 2020-10-17 16:16:40 | 14275 | Galveston Bay Information Collection
    Publication Date: 2021-07-10
    Description: Hydrographic and meteorlogical data collected in the field and taken from publications are presented in the report. River flow measurements were available for six major rivers entering coastal bay areas in 1969 and three in 1970. Measurements were available from January through September. Commercial landings indicate shrimp and crabs were taken in larger numbers in areas of higher rainfall and lower salinities. Finfish were taken in larger numbers in the Laguna Madre where rainfall was lower and salinities were relatively higher. Habitat modifications included routine maintenance dredging of the Intracoastal Waterway and existing channels, dredging of new channels, drilling oil wells, placement of pipelines, bulkheading and filling, mud shell dredging.
    Keywords: Atmospheric Sciences ; Limnology ; hydrography ; meteorology ; hydrographic data ; meteorological data ; rainfall ; salinity ; landing statistics ; habitat improvement ; dredging ; drilling ; GBIC
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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  • 2
    Publication Date: 2021-05-19
    Description: Desde el año 2011 el Caribe ha experimentado un influjo masivo de arribazón de Sargassum pelágico, el cual ha provocado daños no solo en el sector turístico sino también en la estructura de los ecosistemas costeros. Para conocer el estado de las arribazones en el litoral este de la Habana se realizó un estudio, entre mayo/2018 y mayo/2019, en cinco playas de Habana del Este. Se ubicaron tran- sectos (50 m) paralelos a la línea costera y, en puntos aleatorios previamente estimados, un marco cuadrado de 25 x 25 se trasladó perpendicularmente al transecto hasta abarcar el ancho de franja de arribazón en el mesolitoral. Posteriormente, se pesó la biomasa de sargazo en cada punto y se estimó la biomasa en peso seco. La biomasa seca total fue baja (1372 kg) con respecto a otras zonas de Cuba y el Caribe. Los mayores valores de biomasa seca y de ancho de banda de arribazón coincidieron con el período de seca en Cuba. Esta estación estuvo relacionada con la presencia de frente fríos y con una magnitud promedio negativa del índice de Oscilación del Ártico (-0.05), y una magnitud promedio positiva del índice de Os- cilación del Atlántico Norte (0.15). Las playas con forma relativa- mente lineal (1188 kg) reportaron mayor biomasa de arribazón que las de forma de herradura (174 kg). Se presentaron las mayores arribazones con velocidades del viento superiores a los 35 km/h-1, fundamentalmente desde el componente norte, altura de las olas mayores de 1.5 m y con temperaturas inferiores a 30oC.
    Description: Since 2011, the Caribbean has experienced a massive influx of drifting pelagic Sargassum, which has caused damage not only in the tourism sector but also in the structure of coastal ecosystems. To know the status of drifting pelagic Sargassum on the east littoral of Havana, a study was performed from May/2018 through May/2019 in five beaches of East Havana. Transects (50 m) were located parallel to the shoreline and, in points previously estimated, a quadrant of 25 x 25 cm was flipped perpendicularly to the transect until covering the width of the strip of drift pelagic Sargassum in the intertidal zone. Then, pelagic Sargassum biomass was weighted in every point, and the dry weight biomass was estimated. The total dry biomass (1372 kg) was low with respect to other areas of Cuba and the Caribbean. In addition, the highest values coincided with the winter season in Cuba. This season was related to the presence of cold fronts, a negative average magnitude of the Artic Oscillation index (-0.05) and a positive average magnitude of the North Atlantic Oscillation index (0.15). The beaches with a relative lineal shape (1188 kg) reported higher drifting biomass than the beaches with a horseshoe shape (174 kg). The highest accumulations were recorded with wind velocity above 35 km/h-1, fundamentally from the north component, wave height above 1.5 m and with temperatures below 30oC.
    Description: Published
    Keywords: Biomasa ; Frentes fríos ; Índice de Oscilación del Ártico ; Temperatura ; Vientos ; Biomass ; Cold fronts ; Artic Oscillation index ; Temperature ; Winds
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.22-41
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  • 3
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    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14261 | 9596 | 2020-10-17 16:18:01 | 14261 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Description: Hydrographic and climatological data for Texas bays collected in the field and taken from publications are presented in this report. Rainfall was 29 % higher in 1966 than in 1965, with heaviest rainfall occurring in May. Water temperatures followed normal seasonal trends and varied very little from the preceding year. There were no fish kills caused by extreme freezes. Salinities were generally lower than in 1965 as a result of increased rainfall and influx of fresh water from river discharge. High tides were experienced in early May with readings of over three feet above mean low tide in most areas. High tides were also experienced in September as a result of the autumnal equinox. An increase in tide, associated with Hurricane Inez, occurred along the lower coast in October. Habitat modification included routine maintenance dredging in the Galveston and Corpus Christi Ship Channels and in the Upper and Lower Laguna Madre Intracoastal Waterways, oil well operations, marine development operations, and hurricane protection operations.
    Keywords: Atmospheric Sciences ; Aquaculture ; hydrography ; meteorology ; meteorological data ; hydrology ; rainfall ; water temperature ; salinity ; tides ; habitat improvement ; dredging ; GBIC
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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  • 4
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    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14269 | 9596 | 2020-08-23 20:34:51 | 14269 | Galveston Bay Information Collection
    Publication Date: 2021-07-10
    Description: Hydrographic and meteorlogical data for Texas bays, including Galveston, were collected in the field and taken from publications. Salinity patterns varied along the coast in relation to rainfall distribution, but in general increased in most areas from January through July as a result of decreased rainfall and reduced runoff. Heavy rainfall from tropical storm Fern in September brought about flooding of low-lying areas. Minor fish kills from cold weather were recorded during the first part of the year but in general, temperatures followed normal seasonal trends. Dissolved oxygen and pH readings remained above critical levels and varied little from previous years. Turbidity readings were generally lower than those recorded in 1970, as a result of reduced runoff and calmer weather. Habitat modifications included maintenance dredging of existing channels, dredging of new channels and basins, marine construction, discharging of oil field brine, drilling of oil wells, placement of pipelines and mud shell dredging.
    Keywords: Atmospheric Sciences ; hydrography ; meteorology ; hydrographic data ; meteorological data ; salinity ; fish kill ; rainfall ; habitat improvement ; construction ; dredging ; GBIC
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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