Results 171 to 180 of about 314,412 (387)

Effects of Gamma Ray Bursts in Earth Biosphere

open access: yes, 2009
We continue former work on the modeling of potential effects of Gamma Ray Bursts on Phanerozoic Earth. We focus on global biospheric effects of ozone depletion and show a first modeling of the spectral reduction of light by NO2 formed in the stratosphere.
B. Thomas   +12 more
core   +1 more source

Age‐based δ15N and δ13C values of otolith organic matter reveal trophic ecology in marine fishes

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Fish inhabiting similar environments face space and resource constraints, develop diverse feeding strategies, and adjust their trophic niches during ontogeny to reduce competition. To investigate this process, we reconstructed the trophic trajectory of five species of the family Sciaenidae by analyzing δ13C and δ15N values in otolith organic ...
Mu‐Ting Li   +8 more
wiley   +1 more source

Carbon source estimation of Banggai cardinalfish, Pterapogon kauderni, otoliths using a novel tracer Δ14C: New implications for fish metabolism and otolith calcification

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Estimating the metabolic rates of fish is crucial for understanding their physiology and ecology. However, metabolic rate information derived from otolith geochemical data (Moto) has mainly been obtained from mid to high latitudes, leaving a critical information gap for low latitude fishes suffering from climate variability.
Kozue Ando   +8 more
wiley   +1 more source

The Indian Ocean Dipole Modulates the Phytoplankton Size Structure in the Southern Tropical Indian Ocean

open access: yesRemote Sensing
The phytoplankton size structure exerts a significant influence on ecological processes and biogeochemical cycles. In this study, the interannual variations in remotely sensed phytoplankton size structure in the southern Tropical Indian Ocean (TIO) and ...
Xiaomei Liao   +4 more
doaj   +1 more source

The effects of alewife (Alosa pseudoharengus) on zooplankton community structure in Depot Pond NH and a comparison of seven New Hampshire lakes [PDF]

open access: yes, 1999
Physical, chemical and biological features of seven New Hampshire lakes were examined in September and October of 1997. Zooplankton communities exhibited evidence of “top-down” control in Milton Three Ponds (Depot, Norteast, and Townhouse Ponds), showing
Bradt, S. R., Chungu, C.
core   +2 more sources

The role of surface water waves on cyanobacterial blooms in lakes

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract The biophysical processes by which wind‐driven surface waves influence cyanobacterial bloom formation, transport, aerosolization, and termination in lakes represent a major knowledge gap in our understanding of bloom dynamics. We synthesized the literature that examined how waves interact with cyanobacterial bloom processes including ...
Cale A. C. Gushulak   +10 more
wiley   +1 more source

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