Characterization of Spatial and Temporal Variability of Phytoplankton Blooms in Coastal Waters

1993 ◽  
Author(s):  
V. Klemas
2017 ◽  
Author(s):  
Javier López-Solano ◽  
Alberto Redondas ◽  
Thomas Carlund ◽  
Juan J. Rodriguez-Franco ◽  
Henri Diémoz ◽  
...  

Abstract. The high spatial and temporal variability of aerosols make networks capable of measuring their properties in near real time of high scientific interest. In this work we present and discuss results of an aerosol optical depth algorithm to be used in the European Brewer Network, which provides data in near real time of more than 30 spectrophotometers located from Tamanrasset (Algeria) to Kangerlussuaq (Greenland). Using data from the Brewer Intercomparison Campaigns in the years 2013 and 2015, and the period in between, plus comparisons with Cimel sunphotometers and UVPFR instruments, we check the precision, stability, and uncertainty of the Brewer AOD in the ultraviolet range from 300 to 320 nm. Our results show a precision better than 0.01, an uncertainty of less than 0.05, and a stability similar to that of the ozone measurements for well-maintained instruments. We also discuss future improvements to our algorithm with respect to the input data, their processing, and the characterization of the Brewer instruments for the measurement of aerosols.


2015 ◽  
Vol 17 (1) ◽  
pp. 98-109 ◽  
Author(s):  
Jianjun Niu ◽  
Pat E. Rasmussen ◽  
Robert Magee ◽  
Gregory Nilsson

Characterization of incidental nanoparticles (such as diesel fumes and printer emissions) is an important component of nanotechnology exposure assessments.


2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Nina Nurmalia Dewi ◽  
M Mukhlis Kamal ◽  
Yusli Wardiatno

<p><em>Coastal waters of Tangerang Regency </em><em>ha</em><em>s abundant</em><em> in</em><em> fish resource includ</em><em>ing</em><em> pelagic, demersal, and reef fish. This study was conducted to assess </em><em>fish </em><em>biomass varia</em><em>bility and</em><em> of fish</em><em> community structure</em><em> in </em><em>c</em><em>oastal waters of Tangerang Regency which can be used as a basis in determining alternatives for sustainable fish resource management. This research was conducted in June and August 2013 in three </em><em>locations i.e.,</em><em> Kronjo, Cituis, and Tanjung Pasir. Primary data collected </em><em>were </em><em>fish </em><em>weight </em><em>per species. Fish biomass from each locations </em><em>was</em><em> obtained using swept area method</em><em> </em><em>using </em><em>trawl. The results showed that Kronjo </em><em>region contained</em><em> </em><em>the </em><em>highe</em><em>st</em><em> total </em><em>average </em><em>biomass of fish</em><em>.</em><em> </em><em>T</em><em>emporal</em><em>ly</em><em>, total </em><em>ave-rage </em><em>biomass</em><em> </em><em>of fish </em><em>i</em><em>n August was higher than </em><em>in </em><em>June for Kronjo and Cituis</em><em>. M</em><em>eanwhile</em><em>, the con-trary</em><em> </em><em>occurred in</em><em> Tanjung Pasir</em>.<em> This </em><em>conditions occurred </em><em>due to the high current and </em><em>high </em><em>wave in August than </em><em>in </em><em>June. </em><em>In general, b</em><em>iomass of planktivorous was dominant during the study indicating overfishing lead to fishing down the food web in the Coastal waters of Tangerang Regency.</em></p><p><em> </em><strong><em>Keywords: </em></strong><em>biomass, coastal waters of Tangerang Regency, spatial and temporal variability, </em><em>swept area, over fishing.</em></p>


2003 ◽  
Vol 254 ◽  
pp. 111-128 ◽  
Author(s):  
CL May ◽  
JR Koseff ◽  
LV Lucas ◽  
JE Cloern ◽  
DH Schoellhamer

2016 ◽  
Vol 8 (1) ◽  
pp. 39-55 ◽  
Author(s):  
Nina Nurmalia Dewi ◽  
M Mukhlis Kamal ◽  
Yusli Wardiatno

Coastal waters of Tangerang Regency has abundant in fish resource including pelagic, demersal, and reef fish. This study was conducted to assess fish biomass variability and of fish community structure in coastal waters of Tangerang Regency which can be used as a basis in determining alternatives for sustainable fish resource management. This research was conducted in June and August 2013 in three locations i.e., Kronjo, Cituis, and Tanjung Pasir. Primary data collected were fish weight per species. Fish biomass from each locations was obtained using swept area method using trawl. The results showed that Kronjo region contained the highest total average biomass of fish. Temporally, total ave-rage biomass of fish in August was higher than in June for Kronjo and Cituis. Meanwhile, the con-trary occurred in Tanjung Pasir. This conditions occurred due to the high current and high wave in August than in June. In general, biomass of planktivorous was dominant during the study indicating overfishing lead to fishing down the food web in the Coastal waters of Tangerang Regency. Keywords: biomass, coastal waters of Tangerang Regency, spatial and temporal variability, swept area, over fishing.


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