High-frequency measurements of total CO₂: method development and first oceanographic...

2004-05-13 (iso8601)

An X-radiographic study of the October 2000 Po River flood deposit, Italy

During October 2000 the Po River, Italy's largest river, experienced a historically significant flood, producing a deposit on the adjacent prodelta. In December 2000 an event-response study of the deposit was conducted, and during the ensuing 16...

2002-10-18 (iso8601)

Foraminiferal assemblages preserved in surface sediments correspond to multiple...

Here we investigate the relationships between modern foraminiferal assemblages from Atlantic and Pacific surface sediment samples and multiple environmental properties including water column and preservation variables using Canonical...

2003-02-10 (iso8601)

Late pleistocene changes in the Peru current based on planktonic foraminifera

Planktonic foraminiferal faunal assemblages were used to estimate sea-surface temperatures (SST) in the southeast Pacific Ocean during the Last Glacial Maximum (LGM) and off the coast of Peru over the last 150,000 years. Temperatures along the...

2000-11-07 (iso8601)

Hydrothermal links between ocean plateau formation and global anoxia at the...

2003-01-24 (iso8601)

The sediment response of a dissipative beach to variations in wave climate

2002-02-01 (iso8601)

Studies on the spatial variability of phytoplankton physiology and biomass in the...

2003-12-15 (iso8601)

Distribution and abundance of coastal fish and macro-invertebrates in the Galapagos...

The Galapagos Islands, located off the coast of Ecuador, have a spatially diverse marine environment suitable for a variety of species with different climatic requirements. A year-long inventory program was carried out in 2000-2001 to provide...

2004-01-20 (iso8601)

Understanding the anodic mechanism of a seafloor fuel cell

Anoxic sediment overlain by oxic seawater establishes a voltage gradient on the order of 0.7-0.8V across the sediment-water interface. This study follows Reimers et al. (2001) and Tender et al. (2002) who reported the development of a seafloor...

2004-03-12 (iso8601)

Effects of the polychlorinated biphenyl mixture Aroclor® 1254 on Acartia clausi

1974-09-05 (iso8601)

Spatial structure of the physical and biological distributions across the Antarctic...

Mesoscale surveys to examine the relationship between the physical processes and biological response along the Antarctic Polar Front (PF) were conducted as part of the US JGOFS Southern Ocean Program during austral spring and summer 1997/98....

2002-12-12 (iso8601)

Exploring a fluorescence-based analytical method for Ba in natural waters and a field...

2002-01-18 (iso8601)

A seasonal study of sediment reworking by Neotrypaea californiensis in Yaquina Bay, Oregon

A year-long field study was undertaken to investigate the influence of a number of physical and biological factors, specifically temperature, organic carbon content, and shrimp population dynamics on sediment reworking rates by the ghost shrimp...

2002-04-02 (iso8601)

Nonlinear internal waves on the continental shelf: observations and KdV solutions

Numerical solutions of the Korteweg-de Vries (KdV) and extended Korteweg-de Vries (eKdV) equations are used to model the transformation of a sinusoidal internal tide as it propagates across the continental shelf. The ocean is idealized as being a...

1999-09-09 (iso8601)

Sea surface height and geostrophic velocity variability in the California current...

2002-02-07 (iso8601)

Measuring surface longshore currents with an optical technique

Longshore currents are frequently occurring phenomena capable of transporting beach sediments, causing accretion and erosion of the shoreline. Forcing mechanisms are understood and well modeled for cases of alongshore homogeneous and monotonic...

2002-08-23 (iso8601)

Microbial diversity of sulfide structures from hydrothermal vent sites at 9⁰N, Guaymas...

2001-03-16 (iso8601)

Production and export of biogenic silica in the Southern Ocean

2001-06-06 (iso8601)

The inherent optical properties of the oceans: from closure to prediction

Precise in situ measurement of the spectral absorption and scattering coefficients in several regions has revealed patterns in the distribution of the inherent optical properties on spatial scales that were previously unobtainable. The precision...

2000-12-18 (iso8601)

Sediment accumulation and human impacts in Tillamook Bay, Oregon

Tillamook Bay is the second largest estuary on the Oregon coast, and concerns have been raised whether human induced impacts have been responsible for the perceived increase in sedimentation rates during the past century. Major land-use practices...

2001-10-29 (iso8601)

Oceanographic conditions around the Galápagos Archipelago and their influence on...

The objectives of this dissertation were to describe the complex oceanographic conditions around the Galápagos Archipelago (eastern equatorial Pacific), their seasonal variability, and their effects on patterns of cetacean occurrence. The...

2003-04-29 (iso8601)

Siberian-Arctic shelf surface-sediments: sources, transport pathways and processes, and...

This thesis investigates lithogenic sediments on the Siberian Arctic shelf, their sources, modes of dispersal, transport pathways and post-depositional diagenetic alteration. Working with cores collected from the Chukchi, East Siberian and Laptev...

2000-08-25 (iso8601)

Blue whale (Balaenoptera musculus) vocalizations recorded in the North Pacific Ocean:...

2001-05-02 (iso8601)

The release of total and dissolved organic carbon from macroalgae and phytoplankton

Many phytoplankton and macroalgae release dissolved organic carbon (DOC). Many macroalgae also produce and store secondary metabolites which in some case have been shown to deter their grazers. The metabolites may be released into the surrounding...

1999-06-02 (iso8601)

Laboratory investigations of the natural fluorescence of marine phytoplankton

The influence of nitrate availability and irradiance on phytoplankton natural fluorescence was investigated in laboratory cultures of the marine diatom Thalassiosira weissflogii (Bacillariophyceae). Two cultures of phytoplankton, differing only in...

2000-08-25 (iso8601)