Spatio-temporal distribution of picophytoplankton (Pico-eukaryotes, Synechococcus and Prochlorococcus) abundance in the northeastern mediterranean

Date

2020-07-01

Author

Kilic, Ece
Uysal, Zahit
Tugrul, Suleyman
Yucel, Nebil

Metadata

Show full item record

Item Usage Stats

331
views

0
downloads

© 2020 Parlar Scientific Publications. All rights reserved.Primary productivity mostly relies on marine cyanobacteria in the oligotrophic north-eastern Mediterranean (NEM). However, wide shelf basin is fed by nutrient-rich rivers (namely Goksu, Lamas, Seyhan, Ceyhan, Asi) leading to apparent increase in algal production at coastal regions. In the present study, variation of picophytoplankton (pico-eukaryotes, Synechococcus and Prochlorococcus) abundance of at different trophic levels of NEM were investigated. Sample collection was carried out at 50 different stations including Mersin Bay, Goksu River discharge area and oligotrophic offshore waters during October 2017, February, April and July 2018. Minimum and maximum abundance of picoeukaryotes, Synechococcus and Prochlorococcus were found as 1-lxlO4, 103 - 3.3xl04 and SxlO1 - 7.3xl04 cell/ml, respectively. Eukaryotic picoplankton are observed mainly in Goksu River discharge area and could not compete with marine cyanobacteria in offshore waters. Annual average ofpico-eukaryotes abundance was decreased by 1.4 folds from inshore to offshore; while, annual average of Synechococcus abundance was increased by 1.2 folds. Prochlorococcus abundance did not vary from inshore to offshore but decreased by 4 folds from river discharge area to offshore area. Synechococcus and Prochlorococcus have displayed similar abundance profiles with peak levels near the Deep Chlorophyll Maximum (DCM) in October and July. Results showed that Synechococcus was the most abundant regardless of location or season. Even though Synechococcus abundance was found to be higher than Prochlorococcus abundance, a significant increase in the contribution of Prochlorococcus to the total picophytoplankton was observed in July.

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85091601749&origin=inward
https://hdl.handle.net/11511/83681

Journal

Fresenius Environmental Bulletin

Collections

Unverified, Article

Suggestions

OpenMETU
Core

Evaluation of ecological changes in lake hazar (Elazig, Turkey) using diatom-based paleolimnological techniques Maraslioglu, Faruk; Soylu, Elif Neyran; Avşar, Ulaş; Hubert-Ferrari, Aurelia (2020-12-01) © 2020 Parlar Scientific Publications. All rights reserved.Sediment core samples (H002, H003, H005 and H006) recovered from the basin of Lake Hazar located in the South East Region of Turkey. Core sam¬ ples were collected from the four sampling stations by UWITEC corer to determine diatom flora distri¬ bution in Lake Hazar. Diatom counts and identifica¬ tions were made from the sediments sampled at 1-2 cm intervals. Total of 142 species of diatoms were recorded, most of them were pennate diatoms. Ulnaria ul...
Sulfate removal from drinking water by commercially available nanofiltration membranes: A parametric study Karabacak, Aslı; Dilek, Filiz Bengü; Yılmaz, Levent; KİTİŞ, Mehmet; Yetiş, Ülkü (2020-01-01) © 2020 Desalination Publications. All rights reserved.The efficacy of nanofiltration (NF) in removing sulfate from a high sulfate content (370–460 mg/L) surface water was investigated. NF tests were carried out using a laboratory-scale cross-flow NF module operated in total-recycle (full-recycle) mode. Membranes of varying characteristics; namely, DK-NF (Desal DK: GE Osmonics, USA), DL-NF (Desal DL: GE Osmonics, USA), and NF270 (Dow Filmtec Co., USA) were tested, and the effects of main operational paramete...
Secondary School Students’ Understanding of Science and Their Socioscientific Reasoning Karahan, Engin; Roehrig, Gillian (2017-08-01) © 2016, Springer Science+Business Media Dordrecht.Research in socioscientific issue (SSI)-based interventions is relatively new (Sadler in Journal of Research in Science Teaching 41:513–536, 2004; Zeidler et al. in Journal of Research in Science Teaching 46:74–101, 2009), and there is a need for understanding more about the effects of SSI-based learning environments (Sadler in Journal of Research in Science Teaching 41:513–536, 2004). Lee and Witz (International Journal of Science Education 31:931–960, 2009...
Plasmonic light-management interfaces by polyol-synthesized silver nanoparticles for industrial scale silicon solar cells Birant, Gizem; Öztürk, İbrahim Murat; Doğanay, Doğa; Ünalan, Hüsnü Emrah; Bek, Alpan (2020-01-01) © 2020 American Chemical Society. All rights reserved.Plasmonic interfaces are used as an alternative and highly effective light management technique for solar cells. Topdown approaches produce well-ordered and carefully designed plasmonic structures for tailor-made light management; however, they are costly, and their fabrication is time-consuming. Thus, their utilization for industrial-scale solar cells is not trivial. It has been shown that dewetting is a cost- and time-effective bottom-up approach for t...
Scientific careers and ideological profiles of science olympiad participants from Fethullah Gülen and other secondary schools in Turkey Kocabaş, Özlem; Akşit, Bahattin; Department of Sociology (2006) This study attempts to explore the scientific careers and ideological profiles of former Olympiad participant scientists. The research carried out via the Internet is to understand the differences in reproductive function of different high school types. Firstly, it elaborates on the transformation of the education field into an area of struggle together with the alteration in the policies of the State as to educational understanding. Secondly, it focuses on the education understanding of the Gülen Community...

Citation Formats

E. Kilic, Z. Uysal, S. Tugrul, and N. Yucel, “Spatio-temporal distribution of picophytoplankton (Pico-eukaryotes, Synechococcus and Prochlorococcus) abundance in the northeastern mediterranean,” Fresenius Environmental Bulletin, pp. 6134–6146, 2020, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85091601749&origin=inward.