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Spatial and trophic ecology of the sawtooth eel, Serrivomer beanii, a biomass-dominant bathypelagic fish over the northern Mid-Atlantic ridge
Title
Spatial and trophic ecology of the sawtooth eel, Serrivomer beanii, a biomass-dominant bathypelagic fish over the northern Mid-Atlantic ridge.
Creator
Geidner, Megan E., Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
The role of Serrivomer beanii in bathypelagic food webs is poorly known, but abundance and biomass estimates from the 2004 G.O. Sars MAR-ECO Expedition suggest it to have a high level of importance. MAR-ECO, a Census of Marine Life field project, has allowed us to increase our knowledge of S. beanii through spatial analysis, including the congeneric species Serrivomer lanceolatoides, and trophic analysis. Serrivomer beanii abundance and biomass exhibited a decreasing trend along the northern...
Show moreThe role of Serrivomer beanii in bathypelagic food webs is poorly known, but abundance and biomass estimates from the 2004 G.O. Sars MAR-ECO Expedition suggest it to have a high level of importance. MAR-ECO, a Census of Marine Life field project, has allowed us to increase our knowledge of S. beanii through spatial analysis, including the congeneric species Serrivomer lanceolatoides, and trophic analysis. Serrivomer beanii abundance and biomass exhibited a decreasing trend along the northern Mid-Atlantic Ridge from north to south. In terms of size, S. beanii was found to increase as distance from the ridge decreased, suggesting a topographic aggregation strategy. The diet of S. beanii consisted of crustaceans, cephalopods, and teleosts. The trophic results of this study reveal a likely "alternative" trophic pathway in the deep mid-North Atlantic, and perhaps other, bathypelagic ecosystems: higher trophic-level predators are supported by micronektonic invertebrates as primary prey.
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Date Issued
2008
PURL
http://purl.flvc.org/FAU/165941
Subject Headings
Plankton, Ecology, Coral reef animals, Ecology, Deep sea biology
Format
Document (PDF)
Population structure and dispersal of bottlenose dolphins (Tursiops truncatus) of the Indian River Lagoon Estuary, Florida, and adjacent Atlantic waters
Title
Population structure and dispersal of bottlenose dolphins (Tursiops truncatus) of the Indian River Lagoon Estuary, Florida, and adjacent Atlantic waters.
Creator
Rodgers, Sarah E., Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
Worldwide research of bottlenose dolphins (Tursiops truncatus) has led to varied definitions and terminology regarding ways to group dolphins for study and management. An understanding of the demographic history and population structure of bottlenose dolphins residing within the Indian River Lagoon Estuary System (IRLES), Florida, is needed to help define the IRLES dolphin population: ecotype, population, or community. Using mitochondrial DNA sequencing and microsatellite genotyping, this...
Show moreWorldwide research of bottlenose dolphins (Tursiops truncatus) has led to varied definitions and terminology regarding ways to group dolphins for study and management. An understanding of the demographic history and population structure of bottlenose dolphins residing within the Indian River Lagoon Estuary System (IRLES), Florida, is needed to help define the IRLES dolphin population: ecotype, population, or community. Using mitochondrial DNA sequencing and microsatellite genotyping, this study detected: (1) genetic differentiation between estuarine and coastal individuals (FstmtDNA=0.414, Fstmsat=0.057; p<0.05; K=2), (2) genetic differentiation between the Indian River Lagoon (IRL) and Mosquito Lagoon (ML) (FstmtDNA=0.0201, Fstmsat=0.0234; p<0.09), and (3) minute undefined sub-structure within the IRLES (FstmtDNA=-0.00 -0.0379, Fstmsat=0.00 - vii 0.0445; p>0.1). Additionally, within ML this study detected non-mixing cohabitation of two potential ecotypes, estuarine and coastal. These findings raise many questions regarding how dolphins are presently categorized and managed which are critical to population assessments including abundance, vital rates, and health.
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Date Issued
2013
PURL
http://purl.flvc.org/fcla/dt/3362568
Subject Headings
Biogeography, Bottlenose dolphin, Behavior, Bottlenose dolphin, Geographical distribution, Bottlenose dolphin
Format
Document (PDF)
Florida’s Deep-water Oculina Reefs: A National Treasure in Peril
Title
Florida’s Deep-water Oculina Reefs: A National Treasure in Peril.
Creator
Selch, Donna, Reed, John, Cousin, Brian
Abstract/Description
Documentary of the discovery, research and and efforts to protect the deep-water Oculina coral reefs off Florida. These Oculina reefs occur exclusively off eastern Florida at depths of 300 ft, and nowhere else on earth. First discovered by Harbor Branch Oceanographic Institution scientists with the Johnson-Sea-Link submersibles in 1975, they were made the first deep-water coral marine protected area in the world in 1984. Conservation efforts continue today to prevent destructive bottom trawl...
Show moreDocumentary of the discovery, research and and efforts to protect the deep-water Oculina coral reefs off Florida. These Oculina reefs occur exclusively off eastern Florida at depths of 300 ft, and nowhere else on earth. First discovered by Harbor Branch Oceanographic Institution scientists with the Johnson-Sea-Link submersibles in 1975, they were made the first deep-water coral marine protected area in the world in 1984. Conservation efforts continue today to prevent destructive bottom trawl fisheries from fishing within the Oculina Habitat Area of Particular Concern. Funding by the LINK foundation. Dedicated to Dr. Robert Avent & Edwin Link
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PURL
http://purl.flvc.org/fau/fd/FAUIR000388
Subject Headings
Coral reef conservation--Florida, Coral reef ecology--Research--Florida., Oceanography--Florida.
Format
Video file