Arda Özen

ORCID: 0000-0001-5315-8424
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About
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Research Areas
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Marine and coastal ecosystems
  • Fish Ecology and Management Studies
  • Aquatic Ecosystems and Biodiversity
  • Soil and Water Nutrient Dynamics
  • Water Quality and Pollution Assessment
  • Aquatic Invertebrate Ecology and Behavior
  • Isotope Analysis in Ecology
  • Agricultural and Rural Development Research
  • Freshwater macroinvertebrate diversity and ecology
  • Fisheries and Aquaculture Studies
  • Botany and Plant Ecology Studies
  • Plant Ecology and Taxonomy Studies
  • Species Distribution and Climate Change
  • Fish Biology and Ecology Studies
  • Wildlife Ecology and Conservation
  • Diatoms and Algae Research
  • Bryophyte Studies and Records
  • Hydrological Forecasting Using AI
  • Marine Bivalve and Aquaculture Studies
  • Biocrusts and Microbial Ecology
  • Microbial Community Ecology and Physiology
  • Geological formations and processes
  • Lichen and fungal ecology
  • Geology and Paleoclimatology Research

Çankırı Karatekin University
2014-2023

Middle East Technical University
2009-2023

Atatürk University
2012

Climate change may have profound effects on phosphorus (P) transport in streams and lake eutrophication. Phosphorus loading from land to is expected increase northern temperate coastal regions due higher winter rainfall a decline warm arid climates. Model results suggest 3.3 16.5% within the next 100 yr P of Danish depending soil type region. In lakes, eutrophication can be expected, reinforced by temperature-mediated release sediment. Furthermore, shift fish community structure toward small...

10.2134/jeq2008.0113 article EN Journal of Environmental Quality 2009-08-25

Summary 1. We followed microbial and other planktonic communities during a 4‐month period (February–May) in 12 outdoor flow‐through mesocosms designed to elucidate the effect of global warming nutrient enrichment. The were established 2003. 2. Warming had smaller than nutrients on biomass communities, together exhibited complex interactions. 3. did not find direct effects bacterioplankton or ciliates; however, significantly added positive these organisms heterotrophic nanoflagellates (HNF)....

10.1111/j.1365-2427.2012.02824.x article EN Freshwater Biology 2012-10-12

Eutrophication continues to be the most important problem preventing a favorable environmental state and detrimentally impacting ecosystem services of lakes. The current study describes results analyses 20 year monitoring data from two interconnected Anatolian lakes, Lakes Mogan Eymir, receiving sewage effluents undergoing restoration. first step restoration in both lakes was effluent diversion. Additionally, hypertrophic Lake biomanipulation conducted, involving removal benthi-planktivorous...

10.3390/w9020127 article EN Water 2017-02-16

Climate warming threatens the structure and function of shallow lakes, not least those in Mediterranean climate. We used a space-for-time substitution approach to assess response trophic community structures as well richness evenness multiple levels temperature, hydrological, nutrient constraints. selected 41 lakes covering wide climatic, gradients within short distance for reducing effect biogeographical factors western Anatolian plateau Turkey. Generalized linear model analyses revealed...

10.1080/20442041.2020.1746599 article EN Inland Waters 2020-04-02

1. Anthoceros hispidus Steph.Contributors. G. F. Penaloza-Bojaca and S. A. Maciel-SilvaBrazil. (1) Truticultura Pousada e Restaurante Lago Azul, Goncalves, Minas Gerais, 22°42′34.2″S, 45°56′39.8″W,...

10.1080/03736687.2021.1942590 article EN Journal of Bryology 2021-04-03

Abstract Body size is a key trait of an organism which determines the dynamics predator–prey interactions. Most empirical studies on individual distribution aquatic community have focused variations in body single trophic level as response to certain environmental variables or biotic factors. Few studies, however, evaluated how structure altered simultaneously across interacting levels and locations. Such comparative examinations predator prey communities may bring insight into strength...

10.1111/fwb.12997 article EN Freshwater Biology 2017-09-14

Body size is a master trait in aquatic ecosystems to complement traditional taxonomic diversity measures. Based on dataset of fish communities from 40 Turkish lakes covering wide environmental gradient and continental dry cold steppe Mediterranean climates, we elucidated the key variables controlling diversity, geometric mean length number classes community. We further examined how these three measures were related species richness. A GLM analysis revealed that both sizes strongly...

10.3390/w15122147 article EN Water 2023-06-06

Biyolojik çeşitliliği koruma çalışmaları insanların barınma ve beslenme ihtiyaçlarına ekonomik gelişmelere genellikle zıt düşmektedir. Ancak var olan kaynaklardan verimli sürdürülebilir bir şekilde yararlanmayı sağlamak için her ülke kendi koşullarına göre, biyolojik çeşitliliğinin belirlenmesine yönelik çalışmalarını tamamlamalıdır. Bu amaçla Avrupa Birliği ülkeleri kolay anlaşılır sınıflandırma sistemi Doğa Bilgi Sistemi (EUNIS)’ni geliştirmişlerdir. Özellikle bitki örtüsünün hâkim olduğu...

10.18185/erzifbed.646077 article TR Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2020-08-31

In this study, the authors aimed to compare performance of physicochemical-based water quality metrics (WQI, SWQMR) and diatom-based diatom (TDI, BDI, GDI) evaluate ecological status Mert Stream.A total 104 epilithic species, belonging 44 genera, were recorded during study period.Navicula was most dominant in sites near intensive farming areas, while Gomphonema species vicinity urban industrial settlements.According indices based on physicochemical parameters diatoms, upper middle parts...

10.12911/22998993/127392 article EN cc-by Journal of Ecological Engineering 2020-09-27

Cevdet Dündar pond is located between the Fatih Nature Park and Yozgat Pine Grove National boundaries in where semi-arid climate prevails with cold-rainy winters arid-dry summers. The serves as a main water source for local communities. However, limnologic studies have not been conducted until today. aim of this study to create bathymetric map order determine usable volume, depth change conduct first preliminary necessary sub-study future sustainability studies. Moreover, some...

10.21597/jist.650258 article EN Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2020-05-12

The aim of this study was to assess the current status inland aquaculture in Çankırı province by using SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis technique provide recommendations for making be more effective future. based on data that obtained from interviews with owners facilities, literature observations field studies. Establishing fisheries cooperatives, subsidizing fish production costs farms, preparing scaled management plans fisheries, monitoring water resources...

10.17714/gumusfenbil.548642 article EN Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2019-09-18
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