1-20 of 500 Search Results for

seasonal variation

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Aquatic Ecosystem Health & Management (2018) 21 (1): 70–81.
Published: 02 January 2018
...Chao Fang; Peidong Zhang; Xitao Wang; Jiansheng Zhao; Wentao Li Many important processes for Seagrass ecology depend on leaf age. Through biweekly census, from April to November 2015, seasonal variation in leaf age structure of the Eelgrass Zostera marina L. was studied in Swan Lake of Shandong...
FIGURES | View All (9)
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (3): 276–285.
Published: 02 July 2016
... 2004–2010 in Sanya Bay to find out its status in recent years and what controlled its seasonal variation. Different to worldwide coastal and estuarine ecosystems, dissolved oxygen concentrations in the Bay reached minimum values in autumn rather than summer during most of the seven years, while maximum...
FIGURES | View All (7)
Journal Article
Aquatic Ecosystem Health & Management (2014) 17 (3): 212–220.
Published: 03 July 2014
...Fenfen Liu; Chuqun Chen This study aims to document the seasonal cycle of chlorophyll a interannual variability and to determine the dynamic framework for understanding the mechanisms that produce it. We investigated the variation in sea surface chlorophyll a concentration from autumn 1997...
FIGURES | View All (7)
Journal Article
Aquatic Ecosystem Health & Management (2021) 24 (2): 121–129.
Published: 01 April 2021
... environment, which then accumulates in fish species. Therefore, marine fish has a potency to be used as a bioindicator for heavy metals contamination in the coastal environment, since it may vary, as the results of marine hydrodynamics. This research presents seasonal variations (west monsoon, east monsoon...
FIGURES | View All (5)
Image
Published: 03 April 2018
Figure 2. Seasonal variation (thermal transition = September to October, Hot and stratified = November to December, Rainy = January to April and Mixing = May to August) in total seston (a) and zooplankton (e) species carbon, nitrogen, and phosphorus concentrations (μmol l −1 ) and corresponding More
Image
Published: 10 March 2008
Figure 1. Seasonal variation of rainfall (mm/week −1 ) and wind speed (m/s −1 ) in Bujumbura (data from IGEBU). More
Image
Published: 28 May 2010
Figure 3. Seasonal variation in zooplankton (A) OPC counts l − 1 and (B) microscopically analysed zooplankton densities (> 300 μ m) at all depths analysed in Lake Pyhäselkä in 2005. Box-and-whiskers graph in which the line in the middle indicates the median, the box extends from the 25th More
Image
Published: 28 May 2010
Figure 3. Seasonal variation in zooplankton (A) OPC counts l − 1 and (B) microscopically analysed zooplankton densities (> 300 μ m) at all depths analysed in Lake Pyhäselkä in 2005. Box-and-whiskers graph in which the line in the middle indicates the median, the box extends from the 25th More
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (4): 401–410.
Published: 01 October 2016
... environmental studies in Lake Tanganyika. Earlier studies on their ecology (e.g. seasonal variations in abundance) were also limited by difficulties linked to the determination of many endemic species still requiring revision (Dussart et al., 1984 ). The description of Lake Tanganyika copepod species...
FIGURES
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (3): 270–275.
Published: 02 July 2016
...Chunhua Qiu; Jie Chen; Maosen Shangguan; Huabin Mao We investigated seasonal variations in the sea level anomaly in the northwestern Pacific subtropical front zone using weekly satellite-derived products and in situ observations from 2003 to 2009. The sea level anomalies had different seasonal...
FIGURES | View All (4)
Image
Published: 03 April 2018
Figure 2. The seasonal differences and spatial variation of water quality indicators at the seven sampling sites (‘r’ refers to rainy season, ‘d’ refers to dry season). More
Image
Published: 03 April 2019
Figure 6. Seasonal variations of the nitrate and phosphate concentration on a coastal station in the Muscat region, in 2006-2011. Black dots stand for monthly medians. Boxes stand for 25-75% quartiles. The trend curves were approximated by the Distance Weighted Least Squares method. More
Image
Published: 01 January 2004
Figure. 3 The seasonal variations in the surface temperatures of Esthwaite Water; (a) the weekly average values recorded from 1968 to 1997 (solid line) together with the calculated 95% confidence intervals, (b) the observations and fitted model for 1975 and (c) the observations and fitted model More
Image
Published: 01 January 2004
Figure. 4 The seasonal variations in the DRP concentrations in Blelham Tarn; (a) the weekly average values recorded from 1968 to 1997 (solid line) together with the calculated 95% confidence intervals, (b) the observations and fitted model for 1977 and (c) the observations and fitted model More
Image
Published: 01 January 2004
Figure. 5 The seasonal variations in the chlorophyll concentrations in the South Basin of Windermere; (a) the weekly average values recorded from 1968 to 1997 (solid line) together with the calculated 95% confidence intervals, (b) the observations and fitted model for 1988 and (c More
Image
Published: 02 October 2015
Figure 3. Seasonal variations in dominant planktonic foraminiferal species fluxes in the >250 μm and >154 μm (including >250 μm) size fraction in the sediment trap from the Xisha Trough, SCS, June 2009 to August 2011. More
Image
Published: 02 October 2015
Figure 2. Seasonal variations of total foraminiferal fluxes in the >250 μm and >154 μm (including >250 μm) size fraction in the Xisha Trough sediment trap during the two deployment periods. Seasonal changes in sea surface temperature (SST) and cholorophyll- a concentrations near More
Image
Published: 02 October 2017
Figure 3. Seasonal variations in relative frequency of FPG (Burrowers, Clingers and Terrestrial insects) in (a) O. mykiss and (b) H. macraei . More
Image
Published: 10 March 2008
Figure 3. Seasonal variations of photic layer depth, average photic layer temperature, oxygen saturation (%), ammonium (NH 4 ), nitrate + nitrate (NOx), and silicates (S i ). More
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (1): 92–100.
Published: 02 January 2016
... and species j . We determined d ij using 6 taxonomic levels: 16.67 (between congeneric species), 33.33 (between species in different genera), 50 (families), 66.67 (orders), 83.33 (classes), 100 (phyla). Seasonal and spatial variations in these benthic parameters were analyzed through two-way ANOVA...
FIGURES