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  • 1
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    Marine Turtle Conservation on the Caribbean Coast of Nicaragua (2021)
    Florida Cooperative Fish and Wildlife Research Unit , University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1081 | 3 | 2011-09-29 21:09:46 | 1081 | Florida Cooperative Fish and Wildlife Research Unit
    Details
    Publication Date: 2021-07-05
    Description: The purpose of this initial phase was to expand our previous work on marine turtles onthe Caribbean coast of Nicaragua. This was done through the establishment of a collaborativeprogram with the Miskitu Indians to reduce the uncontrolled take of marine turtles in this region.We initiated activities for a multi-year program that will include research, training, andeducational activities involving three Miskitu Indian Communities located in the IndigenousCommunities and Miskito Cays Biosphere Reserve (ICMCBR). (5 page document)
    Description: Research Work Order no. 171
    Keywords: Conservation ; Biology ; Nicaragua ; sea turtles ; Miskitu Indians ; harvesting ; Miskito Cays Biosphere Reserve (ICMCBR)
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    PAPER (OA)
  • 2
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    Variation in Nest Temperatures of the American Alligator Found on the Kennedy Space Center Merritt Island National Wildlife Refuge (2016)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Information on nest temperatures of the American Alligator (Alligator mississippiensis) constructed in the wild is limited. Nesting temperatures during a critical thermal sensitive period determine the sex of alligators and are therefore critical in establishing the sex biases in recruitment efforts of alligators within a given community. Nest components, varying environmental conditions, and global warming could have a significant impact on nest temperatures, thus affecting future generations of a given population. One hundred and seventy four programmable thermistors were inserted into fifty eight nests from 2010 through 2015 nesting cycles. Three thermistors were placed inside each nest cavity (one on top of the eggs, one in the middle of the eggs, and one at the bottom of the clutch of the eggs) to collect temperature profiles in the incubation chamber and throughout the entire incubation period. One thermistor was also placed near or above these nests to obtain an ambient air temperature profile. Once retrieved, data from these thermistors were downloaded to examine temperature profiles throughout the incubation period as well as during the period of sexual determination. These data would help establish survival rates related to nest temperature and predict sex ratio of recruited neonates at the Kennedy Space Center. Over three million temperatures have been recorded since 2010 for the alligator thermistor study giving us insight to the recruitment efforts found here. Precipitation was the largest influence on nesting temperatures outside of daily photoperiod, with immediate changes of up to eight degrees Celsius.
    Keywords: Life Sciences (General)
    Type: KSC-E-DAA-TN31423 , Working Meeting of the Crocodile Specialist Group; May 23, 2016 - May 27, 2016; Sakuza; South Africa
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Plasma Glucose Levels for Red Drum Sciaenops Ocellatus in a Florida Estuarine Fisheries Reserve (2015)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Despite the significant value of the southeastern United States' red drum (Sciaenops ocellatus) fishery, there is a lack of clinical blood chemistry data. This was the first study to assess plasma glucose values as an indicator of stress response to evaluate variation and the effect of reproductive activity for wild adult red drum in Florida. Red drum (n=126) were collected from NASA's Kennedy Space Center waters during three reproductive periods in 2011. Samples were obtained from the branchial vessels of the gill arch. Plasma glucose levels were significantly different among reproductive periods, with the highest mean values recorded during the spawning period, September- October (38.23 mg / dL +/- 10.0). The glucose range was 17 - 69 mg / dL. Glucose values were lower during all three periods than previous values recorded for cultured or captive red drum studies. This may indicate that fish from this population were under less stress than other populations previously sampled.
    Keywords: Life Sciences (General)
    Type: KSC-E-DAA-TN21089 , Biological Sciences; 78; 2; 88-93
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Perfluorinated Alkyl Acids in Plasma of American Alligators (Alligator Mississippiensis) from Florida and South Carolina (2016)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: This study aimed to quantitate fourteen perfluoroalkyl acids (PFAAs) in 125 adult American alligators at twelve sites across the southeastern US. Of those fourteen PFAAs, nine were detected in 65% - 100% of the samples: PFOA, PFNA, PFDA, PFUnA, PFDoA, PFTriA, PFTA, PFHxS, and PFOS. Males (across all sites) showed significantly higher concentrations of four PFAAs: PFOS (p = 0.01), PFDA (p = 0.0003), PFUnA (p = 0.021), and PFTriA (p = 0.021). Concentrations of PFOS, PFHxS, and PFDA in plasma were significantly different among the sites in each sex. Alligators at Merritt Island National Wildlife Refuge and Kiawah Nature Conservancy both exhibited some of the highest PFOS concentrations (medians 99.5 ng/g and 55.8 ng/g respectively) in plasma measured to date in a crocodilian species. A number of positive correlations between PFAAs and snout-vent length (SVL) were observed in both sexes suggesting PFAA body burdens increase with increasing size. In addition, several significant correlations among PFAAs in alligator plasma may suggest conserved sources of PFAAs at each site throughout the greater study area. This study is the first to report PFAAs in American alligators, reveals potential PFAA hot spots in Florida and South Carolina, and provides and additional contaminant of concern when assessing anthropogenic impacts on ecosystem health.
    Keywords: Life Sciences (General)
    Type: KSC-E-DAA-TN31157
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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