Results 81 to 90 of about 158,474 (254)

Submarine Groundwater Discharge Differentially Modifies Photosynthesis, Growth, and Morphology for Two Contrasting Species of Gracilaria (Rhodophyta)

Hydrology, 2018
On many tropical reefs, submarine groundwater discharge (SGD) provides a substantial and often overlooked nutrient source to nearshore ecosystems, yet little is known about the impacts of SGD on the biology of reef organisms.
Daniel W. Amato, Celia M. Smith, Thomas K. Duarte   +2 more
doaj   +1 more source

Ecosystem engineers and functional dominance: when species loss matters for ecosystem function

Oikos, EarlyView.
Understanding when and why species loss affects community function in natural communities remains an open question in ecology. Recent cross‐system analyses have shown that functional dominance is associated with whether species loss matters: in communities dominated by few high‐performing species, lost species contribute little to function.
Gianluca Sarà, Yun‐wei Dong, Maria Cristina Mangano   +2 more
wiley   +1 more source

Whole-Genome Sequencing of Hexagrammos otakii Provides Insights into Its Genomic Characteristics and Population Dynamics

Animals
Hexagrammos otakii, also commonly called “Fat Greenling”, is highly valued as an important commercial fish due to its extremely delicious flesh. However, the absence of a genomic resource has limited our understanding of its genetic characteristics and ...
Dong Liu, Xiaolong Wang, Jifa Lü, Yijing Zhu, Yuxia Jian, Xue Wang, Fengxiang Gao, Li Li, Fawen Hu   +8 more
doaj   +1 more source

Testing the impact of diagenesis on the delta O-18 and delta C-13 of benthic foraminiferal calcite from a sediment burial depth transect in the equatorial Pacific [PDF]

, 2013
Stable oxygen and carbon isotope (O-18 and C-13) values measured in foraminiferal calcite are one of the primary tools used in paleoceanography. Diagenetic recrystallization of foraminiferal calcite can act to reset primary isotopic values, but its ...
Wilson, Paul, Wilson, Paul A., Edgar, Kirsty M., Paelike, Heiko, Pälike, Heiko, Edgar, Kirsty M.; id_orcid   +5 more
core   +1 more source

Dumpsite Seabed Characterization of the San Pedro Basin, CA, From Autonomous Vehicle Observations

Journal of Field Robotics, EarlyView.
ABSTRACT A wide‐area seabed survey was conducted using autonomous underwater vehicles (AUVs) in a known dumpsite off the coast of Southern California that has been found to have widespread sediment contamination from the chemical dichlorodiphenyltrichloroethane (DDT).
Ryan A. McCarthy, Dylan Kriegman, Sophia T. Merrifield, Heidi Batchelor, Eric J. Terrill   +4 more
wiley   +1 more source

Neogene benthic foraminiferal stratigraphy and deep water history of Sites 645, 646, and 647, Baffin Bay and Labrador Sea [PDF]

, 1989
Benthic foraminifers were examined from Neogene sediments of Ocean Drilling Program (ODP) Sites 645, 646, and 647 to determine their biostratigraphy and to place constraints on the paleoceanographic history of Baffin Bay, Eirik Ridge, and the Gloria ...
MacKinnon, K.D., Scott, D.B., Kaminski, M.A., Gradstein, F.M.   +3 more
core  

Benthic fluxes of dissolved organic nitrogen in the Lower St. Lawrence Estuary and implications for selective organic matter degradation [PDF]

, 2013
The distribution of dissolved organic nitrogen (DON) and carbon (DOC) in sediment porewaters was determined at nine locations along the St. Lawrence estuary and in the gulf of St. Lawrence. In a previous manuscript (Alkhatib et al., 2012a), we have shown
Gelinas, Y., Lehmann, M. F., M. Alkhatib, P. A. del Giorgio, Alkhatib, M., del Giorgio, P. A., Y. Gelinas, M. F. Lehmann   +7 more
core   +2 more sources

A Macroinvertebrate‐Based Flow Index Elucidates Responses to Environmental Water in a Highly Regulated River

River Research and Applications, EarlyView.
ABSTRACT Macroinvertebrate‐based flow indices have potential application to guiding environmental flow allocations and monitoring their effectiveness, but their sensitivity to such flows has seldom been tested. We examined the response of the Australian Macroinvertebrate Flow Index (AMFI), calculated from family‐level data, to three stages of ...
Bruce C. Chessman, Andrew J. Brooks, Daniel W. Coleman, Matthew D. Russell   +3 more
wiley   +1 more source

Fish Migration Through Ship Locks at the Danube River, Austria

River Research and Applications, EarlyView.
ABSTRACT Longitudinal connectivity in the Austrian section of the Danube has improved over the last three decades thanks to the progressive installation of fish passage facilities at hydropower plants. However, navigation locks which are present at all barrages remain poorly quantified with respect to their role in fish migration.
Walter Reckendorfer, Barbara Grüner, Renate Degen, Regina Petz‐Glechner, Ursula Scheiblechner, Michael Schabuss   +5 more
wiley   +1 more source

Effects of Per-Pixel Variability on Uncertainties in Bathymetric Retrievals from High-Resolution Satellite Images

Remote Sensing, 2016
Increased sophistication of high spatial resolution multispectral satellite sensors provides enhanced bathymetric mapping capability. However, the enhancements are counter-acted by per-pixel variability in sunglint, atmospheric path length and ...
Elizabeth J. Botha, Vittorio E. Brando, Arnold G. Dekker   +2 more
doaj   +1 more source