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Browsing Biyoloji / Biology by Author "Ongun Sevindik, Tuğba"

Now showing items 1-12 of 12

Assessment of the effects of zinc on the growth and antioxidant enzymes in Scenedesmus ellipsoideus Chodat

Hediye Elif Kilic; Hatice Tunca; Ongun Sevindik, Tuğba; Ali Dogru (WALTER DE GRUYTER GMBH, 2019)

This study explores the activity of total superoxide dismutase (SOD), ascorbate peroxidase (APX) and glutathione reductase (GR), biomass accumulation and chlorophyll a content in Scenedesmus ellipsoideus Chodat grown under ...
BENTHIC DIATOMS AS INDICATORS OF WATER QUALITY IN THE ACARLAR FLOODPLAIN FOREST (NORTHERN TURKEY)

Ongun Sevindik, Tuğba; Küçük, Fırat (PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2016)

The structure and diversity of the epilithic and epiphytic diatom community and their relationship with the physicochemical parameters of the Acarlar Floodplain Forest were studied. Also, diatom indices and their applicability ...
Phytoplankton dynamics and structure, and ecological status estimation by the Q assemblage index: a comparative analysis in two shallow Mediterranean lakes

Ongun Sevindik, Tuğba; Tunca, Hatice (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2017)

The aim of this research was to compare the phytoplankton structure on the basis of environmental variables and test the Q assemblage index based on phytoplankton functional groups in two shallow Mediterranean lakes [ Lake ...
Preliminary study on the effects of heavy metals on the growth and some antioxidant enzymes in Arthrospira platensis-M2 strain

Burcin Onem; Doğru, Ali; Ongun Sevindik, Tuğba; Tunca, Hatice (WILEY, 2018)

In this study, we have analyzed superoxide dismutase (SOD), ascorbate peroxidase (APX) and glutathione reductase (GR) activities, biomass accumulation and chlorophyll-a content in the Arthrospira platensis-M2 strain grown ...
Seasonal Dynamics of the Zooplankton Community in the Temperate Eutrophic Caygoren Reservoir (Balikesir), Turkey Related to Certain Physicochemical Parameters of Water

Kemal Celik; Ahmet Bozkurt; Ongun Sevindik, Tuğba (CENTRAL FISHERIES RESEARCH INST, 2019)

Seasonal dynamics in the zooplankton community and its relationships with certain physicochemical parameters (water temperature, Secchi disk transparency, conductivity, nitrate-nitrogen (NO3-N), phosphate (PO4), pH, ...
SEASONAL VARIATIONS IN THE LENGTH OF ZOOPLANKTON RELATED TO CERTAIN PHYSICOCHEMICAL VARIABLES IN TWO FRESHWATER RESERVOIRS

Ongun Sevindik, Tuğba (BRILL ACADEMIC PUBLISHERS, 2012)

Seasonal variations in the body length of zooplankton were studied in relation to water temperature, nitrate (NO3), soluble reactive phosphorus (SRP), total chlorophyll, Secchi disk depth, pH, conductivity, and oxidation-reduction ...
Spatial heterogeneity and seasonal succession of phytoplankton functional groups along the vertical gradient in a mesotrophic reservoir

Ongun Sevindik, Tuğba; Kemal Celik; Luigi Naselli-Flores (EDP SCIENCES S A, 2017)

Tracking morphological variability of phytoplankton is a useful tool to better understand environmental changes. Highly dynamic systems such as reservoirs are convenient environments to investigate the effects of environmental ...
Temperature Effects Explain Continental Scale Distribution of Cyanobacterial Toxins

Ongun Sevindik, Tuğba; Tunca, Hatice (MDPI, 2018)

Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing ...
The Effects of Certain Physical and Chemical Variables on the Succession of the Phytoplankton in the Shallow Cagis Pond (Balikesir, Turkey)

Ongun Sevindik, Tuğba (FOUNDATION ENVIRONMENTAL PROTECTION & RESEARCH-FEPR, 2014)

The effects of certain physical and chemical variables on the phytoplankton succession in the shallow cagis Pond (Balikesir, Turkey) were investigated between August 2006 and July 2008. Samples were taken monthly from one ...
The phytoplankton functional group concept provides a reliable basis for ecological status estimation in the Caygoren Reservoir (Turkey)

Kemal Celik; Ongun Sevindik, Tuğba (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2015)

The phytoplankton functional group (FG) concept has been successfully used to determine water quality states in both lake and river systems, but is not yet stressed in regular studies in reservoir environments. The purpose ...
The Seasonal and Spatial Distribution of the Phytoplankton of a Mesotrophic Lake Related to Certain Physical and Chemical Parameters

Ongun Sevindik, Tuğba; Ersin Altundal; Fatma Kucuk (FOUNDATION ENVIRONMENTAL PROTECTION & RESEARCH-FEPR, 2015)

The seasonal and spatial distribution of the phytoplankton and their relationship with physicochemical parameters of Lake Poyrazlar, a mesotrophic lake located in Northwest Turkey, was studied monthly between April 2011 ...
Twenty New Records for Turkish Freshwater Algal Flora from Caygoren and Ikizcetepeler Reservoirs (Balikesir, Turkey)

Ongun Sevindik, Tuğba (CENTRAL FISHERIES RESEARCH INST, 2011)

Twenty new records for freshwater algal flora of Turkey were determined in a study conducted from February 2007 to January 2009 in Ikizcetepeler and Caygoren Reservoirs, Balikesir, Turkey. Among these new records, 4 were ...