نتایج جستجو برای: Phytoplankton composition

تعداد نتایج: 270457  

Journal: :caspian journal of environmental sciences 2014
s. bagheri m. fallahi

phytoplankton taxa composition of the caspian sea were evaluated by using samples collected at 12 stations along the iranian coast of the caspian sea between 1996 and 2010. this study identified 158 phytoplankton species consisted of diatoms (70 species), dinoflagellates (23 species), chlorophytes (29 species), cyanophytes (31 species), and euglenoids (5 species). the dominant species were the ...

M. Fallahi S. Bagheri

Phytoplankton taxa composition of the Caspian Sea were evaluated by using samples collected at 12 stations along the Iranian coast of the Caspian Sea between 1996 and 2010. This study identified 158 phytoplankton species consisted of diatoms (70 species), dinoflagellates (23 species), chlorophytes (29 species), cyanophytes (31 species), and euglenoids (5 species). The dominant species were the...

Journal: :international journal of environmental research 2010
h. pei q. liu w. hu j. xie

this study was carried out from june to october 2008 in nansi lake. based on the data collected from five sampling stations, phytoplankton taxonomic composition, abundance, temporal variations and spatial distribution were examined. about 94 species, including 48 species of chlorophyta, 22 species of bacillariophyta, and 1 water bloom causative species were identified. average phytoplankton div...

ژورنال: بوم شناسی آبزیان 2015
Akbarzadeh, Gholamali , Behzadi, Siamak , Darvishi, Mohammad , Salarpouri, Ali ,

The study of spatial and temporal variability of distribution of phytoplankton communities in Northern part of the Persian Gulf (Qeshm andLengeh Islands) was studied. In this study, five groups (47 genera) of phytoplankton include Bacillariophyceae, Dinophyceae, Cyanophyceae, Crysophyceae and Euglenophyceae were identified. The results showed that Diatoms group (79.6 %) and Rhizosolenia genus (...

Journal: :international journal of environmental research 2011
l.i. kiteresi e.o. okuku s.n. mwangi b. ohowa v.o. wanjeri

phytoplankton communities play a significant role in the oceanic biological pump by forming the base of the trophic structure. increase in nutrients loading affects spatial and temporal distribution of phytoplankton. this study examined the phytoplankton community structure and ecological indices in relation to nutrients dynamics in both estuarine and oceanic areas of ramisi-vanga systems alon...

2005
JAMES P. GROVER THOMAS H. CHRZANOWSKI

Variations in phytoplankton composition were observed over 2.7 years in two warm temperate reservoirs in north central Texas, Joe Pool Lake (JPL) and Eagle Mountain Lake (EML), and analysed in relation to temperature, light, dissolved nutrients, seston nutrient ratios and hydrological variables. The dominant variations in both phytoplankton composition and environmental variables were seasonal ...

Journal: :Marine pollution bulletin 2011
E J Rochelle-Newall V T Chu O Pringault D Amouroux R Arfi Y Bettarel T Bouvier C Bouvier P Got T M H Nguyen X Mari P Navarro T N Duong T T T Cao T T Pham S Ouillon J-P Torréton

Phytoplankton diversity, primary and bacterial production, nutrients and metallic contaminants were measured during the wet season (July) and dry season (March) in the Bach Dang Estuary, a sub-estuary of the Red River system, Northern Vietnam. Using canonical correspondence analysis we show that phytoplankton community structure is potentially influenced by both organometallic species (Hg and S...

2012
Gouri Sahu K. K. Satpathy A. K. Mohanty S. K. Sarkar

A comprehensive study on phytoplankton dynamics in the coastal waters of Kalpakkam showed a considerable increase (almost 3 fold) in phytoplankton species composition (185 species) as compared to the earlier findings (60 species). Despite such a massive change in floristic composition, 4-10 times reduction in total cell count was observed during the present study, which varied between 1.7 x 10 ...

ژورنال: توسعه آبزی پروری 2020

Abstract Beside knowledge on primary production and food webs, species composition and density of phytoplankton in shrimp culture ponds are an important issue in relation with shrimp diets and production in the ponds. In order to provide an updated information about phytoplankton community in shrimp culture ponds, this study was carried out to determine species composition and abundance of phy...

2016
Catherine M. Luria Linda A. Amaral-Zettler Hugh W. Ducklow Jeremy J. Rich

The marine ecosystem along the Western Antarctic Peninsula undergoes a dramatic seasonal transition every spring, from almost total darkness to almost continuous sunlight, resulting in a cascade of environmental changes, including phytoplankton blooms that support a highly productive food web. Despite having important implications for the movement of energy and materials through this ecosystem,...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید