Ioannis Karaouzas

ORCID: 0000-0002-3875-1892
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About
Contact & Profiles
Research Areas
  • Freshwater macroinvertebrate diversity and ecology
  • Lepidoptera: Biology and Taxonomy
  • Aquatic Invertebrate Ecology and Behavior
  • Fish Ecology and Management Studies
  • Invertebrate Taxonomy and Ecology
  • Species Distribution and Climate Change
  • Water Quality and Pollution Assessment
  • Hydrology and Sediment Transport Processes
  • Heavy metals in environment
  • Hydrology and Watershed Management Studies
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Soil and Water Nutrient Dynamics
  • Diatoms and Algae Research
  • Fish Biology and Ecology Studies
  • Crustacean biology and ecology
  • Marine Ecology and Invasive Species
  • Insect and Pesticide Research
  • Study of Mite Species
  • Coleoptera Taxonomy and Distribution
  • Plant and animal studies
  • Environmental and Biological Research in Conflict Zones
  • Marine Biology and Ecology Research
  • Marine and environmental studies
  • Heavy Metal Exposure and Toxicity
  • Hemiptera Insect Studies

Hellenic Centre for Marine Research
2015-2024

Waters (United States)
2024

Outokumpu (Finland)
2024

Agricultural & Applied Economics Association
2023

Aristotle University of Thessaloniki
2023

National Technical University of Athens
2021

University of Ioannina
2010-2011

Waters (United Kingdom)
2006-2011

The larvae of Hydropsyche rhadamanthys Malicky 2001 and sarpedon 2001, endemics Crete Island, Greece, are described for the first time. diagnostic features species illustrated, some information regarding their ecology is included. In addition, characters known Aegean provided.

10.11646/zootaxa.4097.4.7 article EN Zootaxa 2016-04-04

The morphology of the different stages (larva, pupa, male, and female) Rhyacophila fasciata kykladica Malicky & Sipahiler 1993 was examined as a basis for description taxon. Morphological data were supplemented by molecular analysis mitochondrial cytochrome C oxidase subunit I (mtCOI), which compared with samples nominate subspecies Hagen 1859, well other new species in this group, denticulata McLachlan 1879 sociata Navás 1916. Our results revealed genetic differences between all taxa;...

10.11646/zootaxa.4657.3.5 article EN Zootaxa 2019-08-20

Despite Greece being a global hotspot of subterranean biodiversity, its hypogean fauna is largely neglected from both an ecological and conservational point view. An overview the Niphargidae occurring in presented as annotated list all available published records. These records have resulted updated species reflecting taxonomic corrections distribution range Greek peninsula. A total 23 species, attributed to 3 genera, up date known with high rate endemicity found particularly Crete. The...

10.11646/zootaxa.4772.3.5 article EN Zootaxa 2020-05-11

The hydrological and biological complexity of temporary rivers as well their importance in providing goods services is increasingly recognized, much it the vulnerability biotic communities view climate change increased anthropogenic pressures. However, effects flow intermittency (resulting from both seasonal variations rising pressure) pollution on biodiversity ecosystem functioning have been overlooked these ecosystems. We explore way multiple stressors affect functioning,...

10.1016/j.scitotenv.2018.08.105 article EN cc-by-nc-nd The Science of The Total Environment 2018-08-08

The European Water Framework Directive 2000/60/EC (WFD) has been implemented over the past 20 years, using physicochemical, biological and hydromorphological elements to assess ecological status of surface waters. Benthic diatoms (i.e., phytobenthos) are one most common quality (BQEs) used in water monitoring particularly successful detecting eutrophication, organic pollution acidification. Herein, we reviewed their implementation river biomonitoring for purposes WFD, highlighting advantages...

10.3390/w13040478 article EN Water 2021-02-12

The presence and distribution of Rhyacophila fasciata Hagen 1859 in Europe were revised, based on bibliographic study, collection specimens, new material collected different countries. status formerly synonymized species, ferruginea (Scopoli 1763) septentrionis McLachlan 1865 was also assessed. type R. is missing, the taxon still unidentified, thus we propose as a nomen dubium. Morphological features genetic evidence revealed that differs from fasciata, so to change its resurrectus. We...

10.11646/zootaxa.4975.1.1 article EN Zootaxa 2021-05-24

We examined the effect of spatial scale on aquatic macroinvertebrate communities in Mediterranean streams from six basins distributed across southern Europe, including Spain, France, Italy, and Greece.We classified studied according to their long-term regime into three following types: (i) permanent (P), (ii) intermittent with summer pools (I-P), (iii) dry channels (I-D).For each stream type, we analyzed taxonomic trait diversity, as well composition community, a spatially nested design at...

10.1127/1863-9135/2013/0429 article EN Fundamental and Applied Limnology / Archiv für Hydrobiologie 2013-09-01

Based on historical and WFD-compliant data, the recent inter-annual ecological status long-term chemical-physicochemical quality trends of eighteen characteristic Greek rivers have been assessed interpreted in view implementing EU environmental policies evolution human pressures. Considering predominating poor most river outflows, strengths weaknesses WFD implementation highlighted. The decrease ammonium nitrite concentrations along with relatively low BOD5 levels, indicate a general...

10.3390/w13131858 article EN Water 2021-07-03

The toxicity and the biochemical effects of olive mill wastewater citrus processing were evaluated using acute bioassays (Gammarus pulex Hydropsyche peristerica) biomarkers (acetylcholinesterase [AChE] glutathione S-transferase [GST]). indicated toxic properties wastewaters. 24 h LC(50) values ranged from 2.64% to 3.36% for G. 3.62% 3.88% H. peristerica, while was 25.26% 17.16% peristerica. Based on a five-class hazard classification system applied wastewaters discharged into aquatic...

10.1002/tox.20606 article EN Environmental Toxicology 2010-05-23

Abstract Rivers are dynamic ecosystems in which both human impacts and climate‐driven drying events increasingly common. These anthropogenic natural stressors interact to influence the biodiversity functioning of river ecosystems. Disentangling ecological responses these interacting is necessary guide management actions that support adapting global change. We analysed independent interactive effects on aquatic invertebrate communities—a key biotic group used assess health European...

10.1111/1365-2664.14072 article EN cc-by Journal of Applied Ecology 2021-11-01
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