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Now showing items 11-20 of 52
Approaches for assessing the presence and impact of thyroid hormone disrupting chemicals in Delphinid cetaceans
(Massachusetts Institute of Technology, 2006)
Cetacean blubber is a primary site for lipid storage, which the animal utilizes during periods of energetic stress. It is important to understand how the blubber responds to factors such as ontogeny, water temperature, ...
Biophysical coupling between turbulence, veliger behavior, and larval supply
(Massachusetts Institute of Technology, 2005)
The goals of this thesis were to quantify the behavior of gastropod larvae (mud snails Ilyanassa obsoleta) in turbulence, and to investigate how that behavior affects larval supply in a turbulent coastal inlet. Gastropod ...
Genes and structural proteins of the phage SYN5 of the marine cyanobacteria, Synechococcus
(Massachusetts Institute of Technology, 2005)
Bacteriophage have been proposed to be the most abundant organisms on the planet, at an estimated 10³¹ particles globally (Hendrix et al., 1999). The majority of bacteriophage isolates (96%) are double-stranded DNA tailed ...
Mitochondrial genomics and northwestern Atlantic population genetics of marine annelids
(Massachusetts Institute of Technology, 2005)
The overarching goal of this thesis was to investigate marine benthic invertebrate phylogenetics and population genetics, focused on the phylum Annelida. Recent expansions of molecular methods and the increasing diversity ...
Migratory patterns of American shad (Alosa sapidissima) revealed by natural geochemical tags in otoliths
(Massachusetts Institute of Technology, 2007)
Geochemical signatures in the otoliths of diadromous fishes may allow for retrospective analyses of natal origins. In an assessment of river-specific signatures in American shad (Alosa sapidissima), an anadromous clupeid ...
Growth and development of larval bay scallops (Argopecten irradians) in response to early exposure to high CO₂
(Massachusetts Institute of Technology, 2013)
Coastal and estuarine environments experience large variability and rapid shifts in pCO₂ levels. Elevated pCO², or ocean acidification, often negatively affects early life stages of calcifying marine invertebrates, including ...
Biology and potential biogeochemical impacts of novel predatory flavobacteria
(Massachusetts Institute of Technology, 2010)
Predatory bacteria are ubiquitous in aquatic environments and may be important players in the ecology and biogeochemistry of microbial communities. Three novel strains belonging to two genera of marine flavobacteria, Olleya ...
Recruitment of the intertidal barnacle Semibalanus balanoides : metamorphosis and survival from daily to seasonable timescales
(Massachusetts Institute of Technology, 2008)
The benthic habitat is the terminal destination for marine animals in terms of their reproductive lifecycle. Recruitment dynamics relating to seasonal changes in the benthic habitat may be the best source of information ...
Larval ecology and synchronous reproduction of two crustacean species : Semibalanus balanoides in New England, USA and Gecarcinus quadratus in Veraguas, Panama
(Massachusetts Institute of Technology, 2011)
The environmental cues for synchronous reproduction were investigated for two highly abundant, ecologically important crustacean species: the temperate acorn barnacle, Semibalanus balanoides, and the tropical terrestrial ...
Advances in measurements of particle cycling and fluxes in the ocean
(Massachusetts Institute of Technology, 2013)
The sinking flux of particles is an important removal mechanism of carbon from the surface ocean as part of the biological pump and can play a role in cycling of other chemical species. This work dealt with improving methods ...