Advanced Underwater Sciences en-US (Asst. Prof. Ali ULVİ) (Research assistant Abdurahman Yasin YİĞİT) Fri, 30 Sep 2022 00:00:00 +0000 OJS 60 The Determination of Ecto parasites in Two Lessepsian Fish Species Caught in the North East Mediterranean Shores (Mersin) <p>This study was conducted between March 2019 and March 2020. Samples were taken monthly. As a result of this study, two types of ectoparasites were encountered in the gills of Randall's threadfin bream (Nemipterus randalli, Russell, 1986) fish, Lernanthropus sp. (Blainville 1822) and Yellowstripe barracuda (Sphyraena chrysotaenia, Klunzinger 1884) in the fins of fish Paragnathia sp.</p> Cafer Erkin Koyuncu Copyright (c) 2022 Advanced Underwater Sciences Fri, 30 Sep 2022 00:00:00 +0000 Metal Pollution Status of Surface Sediments in the Two Coastal Regions of the Mersin Bay, Northeastern Mediterranean Sea <p>The objective of this study is to determine metal pollution status of surface sediments in the two coastal regions of Mersin Bay under the influence of Seyhan and Göksu River inflows for the 2005-2009 period. The average metal concentrations orders were found to be Al &gt; Cr &gt; Cu &gt; Zn &gt; Cd for the Station Mersin affected by Seyhan River inflows and Al &gt; Zn &gt; Cr &gt; Cu &gt; Cd for the Station Taşucu under the influence of Göksu River. According to classification of metal pollution of surface sediments, though there was no Cd pollution, the sediments are highly polluted by heavy metals Cr, Cu and Zn in the Seyhan River influenced coastal region due to agricultural and industrial wastewater discharges.</p> İsmail Akçay, Özgür Özbay Copyright (c) 2022 Advanced Underwater Sciences Fri, 30 Sep 2022 00:00:00 +0000 A Rare Occurrence of Tripterygion Tripteronotum (Risso, 1810) from the North-Eastern Mediterranean <p>One male specimen the Red-black triplefin Tripterygion tripteronotum (Risso, 1810) was recorded by a SCUBA diving expedition at a depth of 3 m on 13 May 2017 in Iskenderun Bay, Turkey. T. tripteronotum is endemic to the Mediterranean and Black Sea. It is extremely rare in the eastern part of the Mediterranean Sea. This paper reporting an endemic fish confirms the occurrence of the species in Iskenderun Bay (North-Eastern Mediterranean, Turkey) in addition to the present report is the first observation for this location in the Mediterranean coast of Turkey. The previous studies have neither given any specific location nor any detailed information about this endemic fish species. Besides the historical captured record of the species in the Mediterranean Sea was well documented in this study.</p> Deniz Ergüden, Sibel Alagöz Ergüden, Menderes Şereflişan, Necdet Uyğur Copyright (c) 2022 Advanced Underwater Sciences Fri, 30 Sep 2022 00:00:00 +0000 lchthyophthirius Multifiliis (Fouget, 1878) Infection in Koi (Cyprinus carpio, Linnaeus, 1758) Culture <p>This study was carried out to determine the cause of unexpected deaths in Koi fish (Cyprinus carpio) cultivated in a private aquarium farm in Mersin, Turkey between June and July 2021. In the samples taken from the skin and fin tissues of fish, it was determined that the cause of these sudden deaths was the parasite Ichthyophthirius multifiliis (Ciliophora: Ichthyophthiriidae). In addition, the morphological features of the parasite and its symptoms in fish were determined.</p> Cafer Erkin Koyuncu Copyright (c) 2022 Advanced Underwater Sciences Fri, 30 Sep 2022 00:00:00 +0000 The New Venomous Fish in The Mediterranean: the Lionfish <p>In recent years, more alien fish species have been encountered in the Mediterranean. One of the alien species that have entered the Mediterranean in recent years is the lionfish. Lionfish attract attention with their appearance but should be carefully monitored due to their rapid and successful invasions on the West Atlantic coasts, and they are venomous. They contain a neurotoxin in protein structure. The lionfish, which spread rapidly in the Mediterranean in a short time, also cause poisoning due to the venom they include in their spines. For this reason, it has become even more important to have information about the properties and possible effects of the venom they contain, as well as the rapid invasion skills of lionfish. This study compiled some information on venom content, poisoning mechanism, and poisoning cases of lionfish (<em>Pterois sp</em>.).</p> Ali Rıza Koşker, Deniz Ayas Copyright (c) 2022 Advanced Underwater Sciences Fri, 30 Sep 2022 00:00:00 +0000