Publications

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Porifera; Aleutian Islands; British Columbia; Endeavour Ridge; Gulf of Alaska; New Zealand; North Pacific; Southwest Pacific; Latrunculia; Biannulata; Bomba; Uniannulata; Latrunclava; new genus; new subgenus; new species

Extensive new collections of latrunculid sponges from British Columbia, the Aleutian Islands, and the Gulf of Alaska, have extended the distributions of known species Latrunculia oparinae Samaai & Krasokhin, 2002, from the Russian Sea of Okhotsk, L. velera Lehnert et al., 2006, from the Aleutian Islands, and L. austini Samaai et al., 2006, from British Columbia. New material has facilitated detailed re-descriptions of these species and in situ images have improved our understanding of their living morphology and ecology.

This data release provides surficial seafloor characteristics point data across the Gulf of Alaska for spatial extent: West longitude -154.586589; East longitude -136.067554; North latitude 60.899214; South latitude 56.230582, as digitized directly from NOS smooth sheets published from 1892 to 2001 and archived at the National Geophysical Data Center’s online data portal (NDGC, http://www.ngdc.noaa.gov).

model; habitat

The purpose of the analysis was to identify the most important abiotic habitat characteristics related to red tree coral presence and to determine if these characteristics could be used for the prediction of red tree corals in other areas. The purpose of the study, however, was of a broader scope: to demonstrate how hierarchical Bayesian logistic mixed-effects models can appropriately be applied to spatially autocorrelated observations on transects in fisheries and marine ecology studies.

Parasitism; Pioneer settlement; Climax community; Recruitment; Host-limited

The Hawaiian gold coral is a parasitic zoantharian that colonizes other deep corals and secretes a protein skeleton that over millennia can grow and more than double the original mean size of the host colony. Surveys at six known coral beds in the Hawaiian Archipelago found mature gold coral to be a common taxon and dominant at the geologically older sites.

Octocoral, Gorgonian, Gulf of Mexico, Mesophotic zone, Oil spill, Health assessment

Hard-bottom mesophotic reefs along the 40- fathom (73 m) shelf edge in the northern Gulf of Mexico were investigated for potential effects of the Deepwater Horizon oil spill from the Macondo well in April 2010.

absolute age, alkaline earth metals, Ar/Ar, basalts, Cenozoic, Emperor Seamounts, Eocene, geochemistry, hafnium, Hawaiian Ridge, Hf-177/Hf-176, igneous, rocks, isotope, ratios, K/Ar, large igneous provinces, lava, lead, magmas, major elements, mantle, metals, Nd-144/Nd-143, neodymium, Pacific Ocean, Paleogene, Pb-206/Pb-204, Pb-207/Pb-204, Pb-208/Pb-204, petrology, radioactive isotopes, rare earths, Sr-87/Sr-86, stable isotopes, strontium, submarine volcanoes, Tertiary, trace elements, volcanic rocks, volcanism, volcanoes

The Northwest Hawaiian Ridge is a classic example of a large igneous province. The morphology and geology of the ridge is poorly characterized, although it constitutes the longest segment (~47%) of the Hawaiian-Emperor Chain. Here we present a new bathymetric compilation, petrographic and X-ray fluorescence (XRF) data for lavas from 12 volcanoes along the Northwest Hawaiian Ridge, and review literature data for the age and isotopic variation of the ridge. 

Eastern Bering Sea slope; canyons; habitat; fish; coral; sponge

Some of the largest submarine canyons in the world incise the eastern Bering Sea shelf break. Here, we examine whether 5 large canyons (Bering, Pribilof, Zhemchug, Pervenets and Navarin) are faunally distinct features within the eastern Bering Sea.

In the Aleutian Islands, patterns of distribution and abundance of Pacific ocean perch (Sebastes alutus) are influenced by oceanographic processes and biogenic structures. We used generalized additive modeling (GAM) to examine relationships between these predictors and patterns of settled juvenile and adult distribution and abundance from bottom trawl surveys conducted from 1997 through 2010.

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cold-water corals; deep-sea; Eastern Pacific; reproduction; fecundity; octocoral; Swiftia

This study examined the reproductive ecology of eight Eastern Pacific deep-sea octocorals, collected from Washington to Southern California. The sexuality, reproductive mode, oocyte size, and fecundity of each species were identified using histological techniques.

Hawaii; black coral; taxonomy

The shallow-water (<150 m) antipatharian fauna of the Hawaiian Archipelago is described and illustrated based on a systematic examination of skeletal spine morphology, polyp morphology, colony branching pattern and in situ photographs.