Josephine Aller

Stony Brook University | Stony Brook · School of Marine and Atmospheric Sciences

Hydrological regimes are significant drivers of fisheries production in many African Lakes due to their influence on fish habitat and food availability, breeding success, and catchability. Lake Turkana, Kenya will undergo substantial changes in hydrology due to water regulation and extraction along the Omo River in neighboring Ethiopia, which provi...

The Monterey Bay Aquarium Research Institute’s Environmental Sample Processor (ESP) is well established as an innovative sampling and instrument platform for sensors designed for in situ monitoring of micro­organisms in the ocean. The platform can be deployed for periods up to 3 months and real-time data can be remotely downloaded at any time. A da...

Our program in the School of Marine and Atmospheric Sciences at Stony Brook University is unique in emphasizing the interdisciplinary study of coastal ocean and atmospheric processes. We attract a large number of both male and female undergraduate applicants representing diverse ethnic groups from across the country. Many are multi-discipline major...

We describe a novel technique for improving the sensitivity of analytical instruments based on the measurement of fluorescent intensity. Independent measurement of the Rayleigh scattered intensity component by means of a second photodetector leads to normalized data, which are independent of various experimental parameters. Incorporation of this te...

Marine aerosols play a dominant role in the transfer of oceanic material to the atmosphere. Most marine aerosol originates when air bubbles burst at the sea surface ejecting material from the sea surface microlayer and bubble surface layers into the air. Concentrations of chemical compounds in these surface layers often differ from their concentrat...

We investigated how regional differences in environmental parameters influenced enrichment of amino acids in the sea surface microlayer relative to underlying bulk seawater. Concentrations and compositions of dissolved free (DFAA), dissolved combined (DCAA), and particulate (PAA) amino acids were measured in the sea surface mi- crolayer and corresp...

We investigated how regional differences in environmental parameters influenced enrichment of amino acids in the sea surface microlayer relative to underlying bulk seawater. Concentrations and compositions of dissolved free (DFAA), dissolved combined (DCAA), and particulate (PAA) amino acids were measured in the sea surface microlayer and correspon...

As a necessary step in the study of prokaryotic diversity using 16S rDNA libraries, authors should evaluate how well their libraries represent diversity in the source environment. Phylotype-richness estimates can be used to judge whether a library represents diversity sufficiently for its intended purpose. We have argued that richness estimates are...

Micro-capillaries are finding increasing utility in the development of portable analytical sensors. We present design guidelines for optimizing the collection of free propagating fluorescence for capillary waveguide sensors used in the detection of nucleic acids. A dual function integrated opto/fluid connector is also described. Evanescent wave exc...

Seasonal sampling of Amazon shelf deposits revealed that calanoid copepods as well as other pelagic zooplankton were often buried along with benthic infauna throughout the upper ∼25 cm of the sea-bed. During February through March, the period of rising to peak riverine discharge and maximum trade wind stress, shelf-wide maxima occur in numbers and...

Meiofauna typically inhabit sedimentary zones having substantial concentration gradients in biogeochemically important solutes such as O2. Transport activities of meiofauna must stimulate solute fluxes and reaction rates, particularly aerobic decomposition and associated processes such as nitrification in the oxic zones of marine sediments. In cont...

In accordance with the research plan outlined in our original proposal, we began monitoring indicators of plankton production (Chl-a, cell counts) in surface waters of Long Island Sound from the Port Jefferson / Bridgeport Ferry on Dec. 3, 1992. In contrast to past years no dramatic bloom has occurred to date although a significant pattern of incre...

In accordance with the research plan outlined in our original proposal, we began monitoring indicators of plankton production (Chl-a, cell counts) in surface waters of Long Island Sound from the Port Jefferson / Bridgeport Ferry on Dec. 3, 1992. In contrast to past years no dramatic bloom has occurred to date although a significant pattern of incre...