Microbial diversity and distribution differ between water column and biofilm assemblages in arid-land waterbodies

2019 ◽  
Vol 38 (4) ◽  
pp. 869-882 ◽  
Author(s):  
Mirjam Kaestli ◽  
Niels Munksgaard ◽  
Karen Gibb ◽  
Jenny Davis
Keyword(s):  
Microbial Diversity ◽  
Water Column ◽  
Arid Land

scholarly journals Bacterial and Fungal Diversity in Sediment and Water Column From the Abyssal Regions of the Indian Ocean

2021 ◽  
Vol 8 ◽  
Author(s):  
Natasha Maria Barnes ◽  
Samir R. Damare ◽  
Belle Damodara Shenoy
Keyword(s):  
Next Generation Sequencing ◽  
Indian Ocean ◽  
Microbial Diversity ◽  
Microbial Communities ◽  
Water Column ◽  
Deep Sea ◽  
Fungal Diversity ◽  
Ecological Functions ◽  
The Indian Ocean ◽  
Generation Sequencing

The deep sea is the largest environment on Earth, comprising important resources of commercial interest. It is composed of a wide variety of ecosystems, which is home to often unique organisms that are yet to be described. The deep-sea is one of the least studied environments, where research is strongly linked to technological access and advances. With the recent advances in the next-generation sequencing and bioinformatics tools, there is an enhanced understanding of microbial diversity and ecological functions in deep sea. Multidisciplinary programs are being undertaken to investigate into microbial communities in diverse marine environments. As compared to other Oceans, the deeper parts of Indian Ocean are still poorly sampled and studied for bacterial, and more so fungal diversity. The studies reporting usage of modern sequencing tools to describe uncultured microbial diversity have seen a rise in numbers in the last decade. In this review, we summarize the important findings of research works carried on bacterial and fungal diversity from the abyssal regions of the Indian Ocean and provide our views on possible future paths.

Watershed hydrology and salinity, but not nutrient chemistry, are associated with arid-land stream microbial diversity

2019 ◽  
Vol 38 (1) ◽  
pp. 77-91 ◽  
Author(s):  
Lydia H. Zeglin ◽  
Chelsea L. Crenshaw ◽  
Clifford N. Dahm ◽  
Richard W. Sheibley ◽  
Cristina D. Takacs-Vesbach
Keyword(s):  
Microbial Diversity ◽  
Arid Land ◽  
Watershed Hydrology ◽  
Nutrient Chemistry

Microbial diversity within the water column of a larval rearing system for the ornate rock lobster (Panulirus ornatus)

Aquaculture ◽  
2006 ◽  
Vol 258 (1-4) ◽  
pp. 80-90 ◽  
Author(s):  
Matthew S. Payne ◽  
Mike R. Hall ◽  
Raymond Bannister ◽  
Lindsay Sly ◽  
David G. Bourne
Keyword(s):  
Microbial Diversity ◽  
Water Column ◽  
Larval Rearing ◽  
Rock Lobster

Comparison of the performance of oscillating water column devices based on arrangements of water columns

2020 ◽  
Vol 14 (3) ◽  
pp. 7082-7093
Author(s):  
Jahirwan Ut Jasron ◽  
Sudjito Soeparmani ◽  
Lilis Yuliati ◽  
Djarot B. Darmadi
Keyword(s):  
Wave Propagation ◽  
Water Column ◽  
Water Depth ◽  
Graphical Form ◽  
Wave Power ◽  
Oscillating Water Column ◽  
Power Absorption ◽  
Water Columns ◽  
Single Column ◽  
Parallel Arrangement

The hydrodynamic performance of oscillating water column (OWC) depends on the depth of the water, the size of the water column and its arrangement, which affects the oscillation of the water surface in the column. An experimental method was conducted by testing 4 water depths with wave periods of 1-3 s. All data recorded by the sensor is then processed and presented in graphical form. The research focused on analyzing the difference in wave power absorption capabilities of the three geometric types of OWC based on arrangements of water columns. The OWC devices designed as single water column, the double water column in a series arrangement which was perpendicular to the direction of wave propagation, and double water column in which the arrangement of columns was parallel to the direction of wave propagation. This paper discussed several factors affecting the amount of power absorbed by the device. The factors are the ratio of water depth in its relation to wavelength (kh) and the inlet openings ratio (c/h) of the devices. The test results show that if the water depth increases in the range of kh 0.7 to 0.9, then the performance of the double chamber oscillating water column (DCOWC) device is better than the single chamber oscillating water column (SCOWC) device with maximum efficiency for the parallel arrangement 22,4%, series arrangement 20.8% and single column 20.7%. However, when referring to c/h, the maximum energy absorption efficiency for a single column is 27.7%, double column series arrangement is 23.2%, and double column parallel arrangement is 29.5%. Based on the results of the analysis, DCOWC devices in parallel arrangement showed the ability to absorb better wave power in a broader range of wave frequencies. The best wave of power absorption in the three testing models occurred in the wave period T = 1.3 seconds.

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