Large variations in the boron isotopic composition of sedimentary environments make boron an attractive monitor of fluidrrock interactions during diagenesis. Studies of B in marine sediments have shown that preferential adsorption of B on clay minerals leaves pore waters enriched in B. During diagenesis, clay minerals recrystallize and incorporate B into Ž the mineral structure Spivack, A.J., P...

Two new species of Lygaeinae endemic to the Peninsula of Baja California, Mexico, are described. Dalmochrimnus insularis sp. nov. endemic to San Ildefonso Island in the Gulf of California and Melacoryphus lagunensis sp. nov. endemic to the Reserve area of Sierra La Laguna in the South of the Peninsula. A discussion about their relationships within their genera and their endemic status is also p...

The prevalence of Vibrio vulnificus on the external surfaces of fish from the northern Gulf of Mexico was determined in this study. A collection of 242 fish comprising 28 species was analyzed during the course of 12 sampling trips over a 16-month period. The prevalence of V. vulnificus was 37% but increased up to 69% in summer. A positive correlation was found between the percentages of V. vuln...

The northern Gulf of Mexico is a region that has been frequently impacted in recent years by natural disasters such as hurricanes. The use of remote sensing data such as winds from NASA's QuikSCAT satellite sensor would be useful for emergency preparedness during such events. In this study, the performance of QuikSCAT products, including JPL's latest Level 2B (L2B) 12.5 km swath winds, were eva...

The Greater Caribbean biogeographic region is the high-diversity heart of the Tropical West Atlantic, one of four global centers of tropical marine biodiversity. The traditional view of the Greater Caribbean is that it is limited to the Caribbean, West Indies, southwest Gulf of Mexico and tip of Florida, and that, due to its faunal homogeneity, lacks major provincial subdivisions. In this scena...

The understanding of a species’ niche is fundamental to the concept of ecology, yet relatively little work has been done on niches in pelagic marine mammal communities. Data collection on the distribution and abundance of marine mammals is costly, time consuming and complicated by logistical difficulties. Here we take advantage of a data archive comprising many different datasets on the distrib...

Hydrocarbon seepage is widespread and patchy in the Gulf of Mexico, and six species of symbiont containing bathymodiolin mussels are found on active seeps over wide and overlapping depth and geographic ranges. We use mitochondrial genes to discriminate among the previously known and a newly discovered species and to assess the connectivity among populations of the same species in the northern G...

In this study we have sampled the water column and sediments of the Gulf of Mexico to investigate the effects of high riverine terrigenous load and sediment redox conditions on the cycling of Ge and Si. Water column Ge/Si ratios across the Gulf of Mexico continental shelf range from 1.9 to 25 lmol/mol, which is elevated compared to the global ocean value of 0.7 lmol/mol. The Ge enrichment in th...

The thermal field of the Gulf of Mexico (GoM) is analyzed from a comprehensive temperature-depth database of about 8500 Bottom Hole Temperatures and Reservoir Temperatures. Our stochastic analysis reveals a widespread, systematic sharp thermal gradient increase between 2500 and 4000 m. The analysis of the pressure regime indicates a systematic correlation between the pressure and temperature fi...

*Correspondence: Jay J. Lunden, Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Building 520 Rm. 4001 Fl 4L, Santa Barbara, CA 93106-6150, USA e-mail: [email protected] †Present address: Jay J. Lunden, Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, USA Changing global climate du...