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Articles 1 - 7 of 7
Full-Text Articles in Life Sciences
Addressing Water Hyacinth (Pontederia Crassipes) Impacts On Aquatic Biota In Lake Okeechobee, Joseph Salerno
Addressing Water Hyacinth (Pontederia Crassipes) Impacts On Aquatic Biota In Lake Okeechobee, Joseph Salerno
All HCAS Student Capstones, Theses, and Dissertations
The incursion of water hyacinth, Pontederia crassipes in Lake Okeechobee has resulted in management systems to be implemented to reduce the coverage of the invasive macrophyte. Its residence in the Lake Okeechobee ecosystem and the effects it has on organisms in the lake, whether it be positive or harmful is unknown. This study attempted to assess the potential effects that water hyacinth has on aquatic biota in Lake Okeechobee. Biotic data were collected on open water, water hyacinth covered, and native vegetation covered habitats via hook-and-line fishing, electrofishing, baited minnow traps, and the sampling of plant roots over a thirteen-month …
Assemblage Composition And Vertical Distributions Of Deep-Sea Anglerfishes (Suborder: Ceratioidei) Of The Northern Gulf Of Mexico, Kimberly S. Schmutz
Assemblage Composition And Vertical Distributions Of Deep-Sea Anglerfishes (Suborder: Ceratioidei) Of The Northern Gulf Of Mexico, Kimberly S. Schmutz
All HCAS Student Capstones, Theses, and Dissertations
The bathypelagic zone, despite being the largest cumulative ecosystem on the planet, represents the largest data gap in biological oceanography. In a deep environment with no solar light and pressures so high that survival is impossible for most marine organisms, some species have been able to adapt and overcome these challenges to radiate into diverse and successful taxa. Among the most notable of these successful taxa are the deep-sea anglerfishes (Lophiiformes: Ceratioidei). Ceratioid anglerfishes possess unique adaptations such as a symbiotic bioluminescent lure (females) and extreme dwarfism (males) that make them a particularly interesting group to study. Despite this research …
Trophic Ecology Of A Dominant Mesopredatory Fish Family (Alepisauridae) In The Western North Atlantic Revealed By Stomach Content And Stable Isotope Analysis, Ellyn Willse
All HCAS Student Capstones, Theses, and Dissertations
The mesopelagic zone of the ocean is gaining increased notice due to its potential for commercial value and the lack of knowledge of its ecosystems. Lancetfishes, Alepisaurus spp., are large mesopelagic predators and common bycatch species in commercial fishing operations that potentially play a role in connecting epipelagic and mesopelagic waters and may be a source of carbon from near the surface to the mesopelagic. While little is known about the behavior and biology of Lancetfishes, they share many food sources, and are themselves a food source for important commercial fisheries species such as tuna and swordfish. This study examines …
Resource Allocation And Phenotypic Plasticity Of Simultaneous Hermaphroditic Turtle Barnacles (Chelonibia Testudinaria), Kevin C. Cash
Resource Allocation And Phenotypic Plasticity Of Simultaneous Hermaphroditic Turtle Barnacles (Chelonibia Testudinaria), Kevin C. Cash
All HCAS Student Capstones, Theses, and Dissertations
This research addresses the knowledge gap of phenotypic plasticity in a commonly found and important species of epizoic barnacle, Chelonibia testudinaria. Limited research has been published regarding how phenotypic expression is mediated the spatial distribution of barnacles on a mobile host. To investigate this potential relationship, barnacles were collected from the backs of turtles along the beaches of Fort Lauderdale Florida. These barnacles were assessed for various phenotypic traits as well as their corresponding spatial distribution on the turtle carapace. Barnacles were safely removed from the carapace using a chisel before their preservation in ethanol. Barnacles were then numbered …
Examination Of Parasite Assemblages In Killifish Of The Genus Fundulus Across The Atlantic Coast Of The United States And Canada, Derek Garvey
HCNSO Student Theses and Dissertations
Killifish of the genus Fundulus were examined to assess the factors shaping parasite community structure at a genus level. A database of previous parasite surveys on Fundulus species across the Atlantic coast of the United States and Canada was created from a literature review. The database included parasite and environmental factor data from 15 sources. Additional sites from New Brunswick, Maine, Massachusetts, Rhode Island, North Carolina, and South Carolina were sampled for Fundulus species. The resulting database includes data for 10 species from a total of 57 unique geographic sites. Data on the diversity and abundance of metazoan parasites were …
Microbial Community Richness Distinguishes Shark Species Microbiomes In South Florida, Rachael Cassandra Karns
Microbial Community Richness Distinguishes Shark Species Microbiomes In South Florida, Rachael Cassandra Karns
HCNSO Student Theses and Dissertations
The microbiome (microbial community) of individuals is crucial when characterizing and understanding processes that are required for organism function and survival. Microbial organisms, which make up an individual’s microbiome, can be linked to disease or function of the host organism. In humans, individuals differ substantially in their microbiome compositions in various areas of the body. The cause of much of the composition diversity is yet unexplained, however, it is speculated that habitat, diet, and early exposure to microbes could be altering the microbiomes of individuals (Human Microbiome Project Consortium, 2012b, 2012a). To date, only one study has reported on microbiome …
Reef Fish Spatial Distribution And Benthic Habitat Associations On The Southeast Florida Reef Tract, Dana Fisco
Reef Fish Spatial Distribution And Benthic Habitat Associations On The Southeast Florida Reef Tract, Dana Fisco
HCNSO Student Theses and Dissertations
The Florida Reef Tract (FRT) extends from the tropical Caribbean up the southeast coast of Florida into a temperate environment where tropical reef assemblages diminish with increasing latitude. This study used data from a three-year comprehensive fishery-independent survey to quantify reef fish spatial distribution along the Southeast FRT and define where the assemblage shifts from tropical to temperate. A total of 1,676 reef fish visual census samples were conducted to assess the populations on a stratified-random selection of sites of marine hardbottom habitats between the Miami River and St. Lucie inlet. Multivariate analyses were used to investigate differences in assemblages …