Esat Tarik Topkara

• PhD
• Faculty Member at Ege University

The aim of this study was to determine the current fish fauna and their distribution rates in Lake Sapanca and its tributaries. For this purpose, standard benthic and pelagic nets were used in the lake and a portable electroshock device was used in the streams. As a result of the sampling carried out in two different seasons, wet and dry periods,...

Homa Lagünü’nde kapıların tamamen açık olduğu ve kuzulukların kurulmadığı bir dönemde yürütülen bu çalışma, Haziran 2020 – Mayıs 2022 tarihleri arasında, aylık periyotlarla gerçekleştirilmiştir. Araştırma süresince balıklar 28-30 ve 36 mm deneysel fanyalı ağlarla ve kısmen dalyanda avcılık yapan balıkçılardan temin edilmiştir. Homa Dalyanı’nda uzat...

This study aimed to determine the water quality classes of seven rivers in the North Aegean Basin (Türkiye) according to their benthic macroinvertebrate groups. In order to determine water quality levels, water and benthos samples were taken from 17 localities in May and June 2014, and the collected material was examined. As a result, a total of 22...

Bakırçay is one of the important rivers of Western Anatolia, Türkiye. The objectives of this study are (a) to determine the diversity of benthic invertebrates distributed in Bakırçay, (b) to evaluate the obtained data using various biological indices, (c) to determine the interactions of species with environmental variables, and (d) to estimate the...

Bakırçay, one of the important rivers of Western Anatolia, has a length of 129 km and its basin covers approximately 3160 km ² area. In addition to the existence of settlements, industrial and intensive agriculture-livestock activities are carried out, especially in the lower parts of the river. The objectives of this study are; a) to determine the...

In the present study, adult specimens belonging aquatic/semi-aquatic coleopteran collected from 1986 to 2002 in Turkish Thrace were evaluated taxonomically. Altogether, a total of 23 species belonging to the families Dytiscidae, Haliplidae, Noteridae, Gyrinidae, Helophoridae and Hydrophilidae were determined. A total of 12 species Hydaticus (Hydati...

Bu çalışmada, Karagöl (Denizköy-Dikili-İzmir)’ün bentik makroomurgasız faunası incelenmiştir. Örneklemeler 2012-2013 yıllarında 4 mevsim yapılmıştır. Karagöl’deki araştırma sonuçlarına göre 4 Oligochaeta ve 13 Insecta taksonu tespit edilmiştir. Tespit edilen tüm taksonlar Karagöl için ilk kez kaydedilmiştir.

The Morocco dentex, Dentex maroccanus, is an important demersal commercial sparid species inhabiting throughout the Mediterranean at the depths from 20 to 500 m. Morocco dentex ecologically prefers deep and higher salinity waters. In the Aegean Sea (Izmir Bay), a basin of the eastern-central Mediterranean, the sparids represent important components...

The macrobenthic invertebrate community of a shallow Mediterranean lake (Lake Golcuk, Izmir, Turkey) was studied in order to (a) describe the intra-annual and spatial variability in benthic communities, (b) relate possible community changes to environmental conditions and (c) evaluate the responses of the lake’s ecological status on community indic...

A preliminary study on the aquatic fauna of Yelköprü Cave (Dikili, Izmir) and its vicinity. This study was carried out in order to determine the aquatic fauna of Yelköprü cave. As a result of the study, totaly 12 taxa were determined. 2 of them belong to Chordata, 2 to Mollusca and 8 to Arthropoda. All the taxa determined were firstly reported for...

The fish fauna of Yuvarlakçay (Köyceğiz, Muğla). With the aim of identifying the fish fauna of Yuvarlakçay Stream, is an important stream located in the Köyceğiz Lake basin, a number of fish samples were collected and evaluated from five different stations on Yuvarlakçay Stream. Consequently, 13 taxa were determined belonging to 9 family. These are...

In this study, in order to determine the aquatic Coleoptera and the aquatic and semiaquatic Heteroptera of Gönen River, a total of 8 field observations were carried out between 2010 and 2012 in 15 stations. Samples of aquatic insects were collected by 500 µm square mesh sizes hand net. As a result of laboratory investigations, from Coleoptera order...

Limnoporus rufoscutellatus (Latreille, 1807) Ağustos 2006’da Türkiye’nin Doğu Karadeniz Bölgesi’ndeki bir dağ gölü olan Kuzeyaksu Gölü’nden iki erkek birey ilk kez kaydedilmiştir ve lokaliteye ait bazı ekolojik özellikler hakkında bilgi verilmiştir

Türkiye’nin batısındaki 35 farklı lokaliteden toplanan Corixidae örnekleri sistematik açıdan değerlendirilmiştir. Çalışma sonucunda, üç altfamilyaya (Micronectinae, Cymatiainae, Corixinae) ait 11 tür ve 2 alttüre dahil toplam 3222 birey incelenmiştir. Yedi tür ve iki alttür araştırma bölgesindeki bazı lokaliteler için ilk kez tespit edilmiştir

In order to determine the pollution level of Yuvarlak stream by using benthic macro invertebrates, monthly samplings were conducted between May 2001 and April 2002 at ten stations. Benthic macro invertebrates were sampled by sieving of mud samples collected by using a 500 jum mesh sized kick-net and an Ekman-Birge grab (at ninth and tenth stations)...

To date, 73 species of Ochthebius Leach, 1815 have been reported from Turkey. Twenty-seven of these species are endemic to Turkey (Ertorun, Jäch, Kasapoğlu & Darilmaz, in prep.). During faunistic surveys in Erzurum and Denizli, a new species of the Ochthebius metallescens species group was discovered. In the present paper, the new species is descri...

The collected aquatic Coleoptera specimens from inland water of the Western Black Sea Region between 2002-2005 are examined, In this study, 47 taxa belonging to 9 family were determined and their distribution in Turkey are given. Twenty three of them are the first record for the study area.

The corixid species, Sigara (Halicorixa) stagnalis stagnalis (Leach, 1817) was reported for the first time from Turkish brackish waters and some physico-chemical parameters of the living area were given.

In order to contribute to the knowledge on the distribution of Malacostraca (Crustacea) species inhabiting freshwaters of central and southern parts of Anatolia, Turkey, sampling was performed at 69 stations between 29 May and 4 June 2006 and between 19 and 25 June 2006. Malacostraca specimens were found at 26 out of the 69 stations and were repres...

In this study, fauna characteristics of five glacial lakes (Lake Kara, Lake Kilimli, Lake Aynalı, Lake Buzlu and Lake Heybeli) and five rivers (River Güvercinlik, River Deliçay, River Nilüfer, River Kalburt and River Hamamlı) on Uludağ Mountain were investigated between 8 July and 19 August 2003. A Total of 82 species, consisting of 36 zooplankton,...

With the discovery of Hygrobia hermanni, the family Hygrobiidae is reported for the first time from Turkey. An illustration of the habitus and line drawings of diagnostic characters are provided.

The fish and the present condition of fishing activities at Homa Lagoon, which is located in the northwest of the Gulf of Izmir, on the location of Çamalti{dotless} Saltpan and Izmir Bird Paradise and whose operation was transferred to the Faculty of Fisheries at Ege University in 1986, have been determined. Gilthead sea bream (Sparus aurata) and v...

A faunal study of the glacier lakes and rivers on Uludağ (Bursa) Mountain. In this study, fauna characteristics of five glacial lakes (Lake Kara, Lake Kilimli, Lake Aynalı, Lake Buzlu and Lake Heybeli) and five rivers (River Güvercinlik, River Deliçay, River Nilüfer, River Kalburt and River Hamamlı) on Uludağ Mountain were investigated between 8 Ju...

Gammarus dorsosetosus Mateus & Mateus, 1990, a freshwater amphipod endemic to Turkey, is herein reported for the second time from Turkey. Until now, there exists only one record of this species, i.e., the original description of Mateus & Mateus (1990). In order to contribute to the knowledge on distribution, ecology, and morphology of the species,...

A preliminary study on the biological diversity of Bozalan Lake (Menemen-İzmir). Aim of this study is taxonomical determination of biological diversity of Bozalan Lake which situated in the boundaries of Menemen county, İzmir. Biological and water samplings were performed at different dates between 2001 and 2005. At the end of study, totally 122 ta...

Aim of this study is taxonomical determination of biological diversity of Bozalan Lake which situated in the boundaries of Menemen county, İzmir. Biological and water samplings were performed at different dates between 2001 and 2005. At the end of study, totally 122 taxa were determined;of them 7 belong to Cyanophyta, 24 to Chlorophyta, 16 to Chrom...

Knipowitschia longicaudata is recorded for the first time from Lake Manyas. K. caucasica is known to live in Lake Manyas. Therefore, In order to determine whether the specimens of Knipowitchia collected from Lake Manyas were K. caucasica species or not, they were compared with K. caucasica from Lake Eǧirdir. The comparission of K. caucasica specime...

In order to determine the aquatic fauna of Birgi ponds (Urla- İzmir) and Sazlıgöl (Karaburun-İzmir), a field study was arranged on 23. March 2001. At the end of the study, totally 40 taxa were determined; of them, 17 belong to Rotifera, 22 to Arthropoda and 1 belongs to Chordata.All the determined taxa were firstly reported for this locality

A preliminary study on the aquatic fauna of Yelköprü Cave (Dikili, Izmir) and its vicinity. This study was carried out in order to determine the aquatic fauna of Yelköprü cave. As a result of the study, totaly 12 taxa were determined. 2 of them belong to Chordata, 2 to Mollusca and 8 to Arthropoda. All the taxa determined were firstly reported for...