نتایج جستجو برای: algal bloom

تعداد نتایج: 18518  

2009
Huajun LUO Defu LIU Daobin JI Yuling HUANG Yingping HUANG

To study the relationship between environmental variables and chlorophyll a of spring algal bloom in Xiangxi Bay of Three Gorges Reservoir, stepwise multiple binomial regression and grey relative analysis methods were adopted. In surveys, 13 stations have been investigated and 143 samples were collected weekly from March 4 to May 13 in 2007. The study shows environmental variables (turbidity, t...

2015
Kunihiro Okano Naoyuki Miyata Yasuo Ozaki

Microcystis aeruginosa is a typical algal bloom-forming cyanobacterium. This report describes the whole-genome sequence of a non-microcystin-producing strain of Microcystis aeruginosa, NIES-44, which was isolated from a Japanese lake.

In this research, we investigated the cytotoxic mechanisms of Cochlodinium polykrikoidescell lysate on isolated rat liver hepatocytes.This micro algae is responsible for a severe and widespread harmful algal bloom in the Persian Gulf and Gulf of Oman (2008-2009). Isolated hepatocytes were obtained by collagenase perfusion of Sprague-Dawley rat liver.According to our results, incubation of algal...

2006
PETER I. MILLER JAMIE D. SHUTLER GERALD F. MOORE STEVE B. GROOM

The discrimination of harmful algal blooms (HABs) from space would benefit both the capability of early warning systems and the study of environmental factors affecting the initiation of blooms. Unfortunately, there are no published techniques using global monitoring satellite sensors to distinguish the resulting subtle changes in ocean colour, so in situ sampling is needed to identify the spec...

Journal: :Science 1978
K I Keating

Cell-free filtrates of axenic or bacterized cultures of the dominant blue-green algae from a freshwater lake inhibited the growth of diatoms isolated from the same lake. Lake waters, collected during blue-green algal blooms, also inhibited diatom growth. In situ observations over a 5-year period indicate that diatom bloom populations vary inversely with the levels of the preceding blue-green al...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Anna M Michalak Eric J Anderson Dmitry Beletsky Steven Boland Nathan S Bosch Thomas B Bridgeman Justin D Chaffin Kyunghwa Cho Rem Confesor Irem Daloglu Joseph V Depinto Mary Anne Evans Gary L Fahnenstiel Lingli He Jeff C Ho Liza Jenkins Thomas H Johengen Kevin C Kuo Elizabeth Laporte Xiaojian Liu Michael R McWilliams Michael R Moore Derek J Posselt R Peter Richards Donald Scavia Allison L Steiner Ed Verhamme David M Wright Melissa A Zagorski

In 2011, Lake Erie experienced the largest harmful algal bloom in its recorded history, with a peak intensity over three times greater than any previously observed bloom. Here we show that long-term trends in agricultural practices are consistent with increasing phosphorus loading to the western basin of the lake, and that these trends, coupled with meteorological conditions in spring 2011, pro...

2016
Harold G. Marshall Todd A. Egerton

Sporadic algal bloom development within a IO year monitoring program in Virginia tidal tributaries of Chesapeake Bay is reviewed. These blooms were common events, characteristically producing a color signature to the surface water, typically short lived, occurring mainly from spring into autumn throughout different salinity regions of these rivers. and were produced primarily by dinoflagcilatcs...

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