Health and Physiology - 2009 Reports

Hearing abilities of bottlenose dolphins in Sarasota Bay

Jan 23, 2009 No comments

Bottlenose dolphins are exposed to a wide variety of noise in their environment, both naturally-occurring and anthropogenic (man-made), and there is concern that these noises may have negative effects on their hearing. Because dolphins rely heavily on acoustics to navigate, forage, and communicate with each other, hearing losses in these animals can be especially damaging. [...]

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Total circulating antibody levels and eosinophil counts are higher in the Sarasota Bay dolphin community than in managed collection populations

Jan 15, 2009 No Comments

Results showed that free-ranging Sarasota Bay bottlenose dolphins had significantly higher mean circulating IgG levels (9.1 mg/ml) when compared to 2 separate managed collection populations housed in closed pool systems (5.7 mg/ml) and open bay netted enclosures (6.2 mg/ml).

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Effects of red tide on dolphins, sea turtles and sea birds

Jan 15, 2009 No Comments

The fact that the majority of the live sea birds and sea turtles sampled during these red tide events were positive for the red tide toxin indicates that red tide intoxication plays a larger role in the morbidity and mortality of sea birds and sea turtles off the west coast of Florida than was previously recognized

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Effects of mercury on Sarasota’s bottlenose dolphins

Jan 15, 2009 No Comments

The strong association between blood mercury and serum selenium, in conjunction with a lack of significant correlation between blood mercury and glutathione peroxidase, implies that a substantial proportion of blood mercury is affiliated with another selenium-containing moiety or is related to recent dietary intakes.

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Integrating Life History, Health, and Reproductive Success Data to Examine Potential Relationships with Organochlorine Contaminants for Bottlenose Dolphins in Sarasota Bay

Jan 15, 2009 No Comments

The resident community of bottlenose dolphins in Sarasota Bay, Florida, provides unparalleled opportunities to investigate relationships between organochlorine contaminant residues and dolphin life history, health and reproductive parameters, by examining correlations between contaminant concentrations and sublethal effects.

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Blubber deposition during development in free-ranging bottlenose dolphins: balancing disparate roles of insulation and locomotion

Jan 14, 2009 No Comments

Limits to costs of diving may be set by the inability of yearlings to produce large amounts of thrust for swimming due to diminutive body size and underdeveloped locomotor muscles.

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Two novel dolphin viruses: Parainfluenza and Enterovirus

Jan 14, 2009 No Comments

Through the use of advanced molecular diagnostics, our laboratory has recently isolated a novel parainfluenza virus and an enterovirus never before described in bottlenose dolphins. The parainfluenza virus (TtPIV-1), closely related to human and bovine parainfluenza viruses, was isolated from a dolphin with respiratory disease. Serosurveys for TtPIV-1 of Sarasota Bay dolphins indicated the presence [...]

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Total circulating antibody levels and eosinophil counts are higher in the Sarasota Bay dolphin community than in managed collection populations

Jan 13, 2009 No Comments

This finding suggests that higher IgG levels in free-ranging dolphins are most likely attributable to a higher internal parasitic load.

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Persistent organic pollutants in bottlenose dolphins

Jan 13, 2009 No Comments

Since POC mixtures differ in toxicity, there may be health implications associated with the shifts in contaminant profiles throughout the lifetime of Sarasota bottlenose dolphins.

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