Sinan Mavruk

Cukurova University | CU · Faculty of Fisheries

http://onlinelibrary.wiley.com/doi/10.1111/fog.12215/full The fish assemblages of the Eastern Mediterranean are highly variable owing to the Lessepsian migration. So far, there has been limited discussion about the temporal variation of Lessepsian populations, which may be a key to better understanding the establishment, persistence and spreading...

https://www.sciencedirect.com/science/article/pii/S0308597X17304517?np=y&npKey=a134006631c763a5d4869608a627da066a315ef7310c12cfc85d4d9fdf66d358 Groupers are important components of coastal ecosystems as well as a valuable resource for fisheries. Their populations are known to be decreasing throughout the world primarily due to over-exploitation. H...

To date, little is known about the larval-fish assemblages (LFAs) in the eastern Mediterranean. The purpose of this study is to investigate the intra-annual variations of LFAs with an emphasis on the effects of physical, chemical, biological and meteorological conditions in the gulf of Iskenderun, which is a shallow (100 m maximum depth), semi-encl...

Darter goby, Ctenogobius boleosoma (Jordan & Gilbert, 1882), is a small euryhaline fish of the Gobiidae family (Gobiiformes). It is naturally found in the shallow marine and brackish waters of the Western Central Atlantic. This study reports the first record of C. boleosoma in the Mediterranean Sea. In August and October 2019, two postflexion stage...

Full text is available at https://rdcu.be/c3kH7 Ichthyoplankton surveys hold much potential for studying fish biodiversity, but challenges and uncertainties in identification of early life stages and the drifting of planktonic eggs and larvae limit the efficacy of this method. In this study, we investigate mesopelagic fish biodiversity in Antalya...

The highly toxic orange-spotted toadfish Torquigener hypselogeneion (Bleeker 1852) [conspecific Torquigener flavimaculosus Hardy & Randall, 1983] is now a very common invasive fish in the Eastern Mediterranean. Its small size, well under 20 cm, may have concealed the danger it represents, and little is known about its biology or ecology. Here, the...

Most marine teleost fish undergo a planktonic egg and/or larval stage in their early life. This planktonic phase is referred to as ichthyoplankton until the individual settles on the sea floor in demersal species or acquires an active swimming ability in pelagic species. The potential contribution of ichthyoplanktonic stages in non-indigenous fish...

Deep sea ecosystems are home to many unique habitats. Considering the Mediterranean Sea, extreme environments are clustered mainly in the eastern basin such as the Nile Deep Sea Fan, Finike (Anaximander) and Eratosthenes Seamounts, Olimpi mud volcano field, Calabrian Arc and Marmara deep fault systems. This study was conducted in the Finike Seamoun...

Marine litter is an emerging pollution all over the world. In addition to the macro sized plastics, ongoing scientific efforts revealed risks of micro and nano sized plastic particles in marine environment. In the past decades, an increasing number of studies have been carried out to understand the dynamics of this pollution. The aim of the present...

This Collective Article presents new information about the occurrence of 21 taxa that belong to six Phyla: one Cnidaria, one Ctenophora, two Annelida, four Mollusca, two Arthropoda, and eleven Chordata. These records were reported from ten countries from the western to the eastern Mediterranean Sea as follows: Spain: early colonization signs of the...

In this study, growth patterns of larval anchovy (Engraulis encrasicolus L., 1758) were investigated based on otolith microstructure analyses and a meta-analysis of previously recorded growth rate estimates. For this purpose, samples were collected from Iskenderun Bay, the northeastern corner of Levant Basin, between 21 and 22 April 2017 and stored...

Although goatfishes (Mullidae Rafinesque, 1815) are among the most important commercial fishes in Turkey, no research has been found investigating the characteristics and spatial patterns of goatfish fishery. Here, we assessed the goatfish fishery of Turkey based on the microdata set of Turkish National Fishery Statistics gathered by Turkish Statis...

Seagrasses provide important nursery grounds, shelter and natural habitats for juvenile fish. In this study, we evaluated if artificially created seagrass areas can play the same role as the natural seagrass (NS) habitats. The study was carried out in three different stations on the coast of Yumurtalık, Adana, selected according to the seagrass are...

Scientific and technological progresses have introduced diverse data sources for seawater temperature over broad temporal and spatial ranges. Here, we investigated the performance of satellite and model-based seawater temperature data for different temporal composites and depths. We applied an in-situ temperature time-series obtained in a coastal b...

The retention-releasing patterns of the double-grid grating sieve placed on the deck of the purse seiners were revealed for four case species (Sardina pilchardus, Sardinella aurita, Engraulis encrasicolus and Boops boops) using a simulated data predicted from total length (TL) – maximum height (Hmax) and TL – maximum width (Wmax) regressions. To ca...

The small scaled terapon, Terapon puta Cuvier, 1829, is an amphidromous species native to the Indian Ocean and Western Pacific Ocean, inhabiting marine, brackish and freshwater habitats. It entered to the Mediterranean Sea via the Suez Canal and established populations in the southeastern and eastern coasts of the Levantine Basin. Here, we report t...

The striped piggy, Pomadasys stridens (Forsskål, 1775), is a recent invasive fish species in the eastern Mediterranean. Although its population dynamics was investigated in detail in its natural distribution area, the western Indian Ocean, an important data gap still exists in the Mediterranean. This study was carried out to determine the growth, m...

Groupers are important fishes for the coastal ecosystems because of having a key role in the functioning of marine food webs. Their populations are increasingly affected by overfishing, habitat loss, and global warming. Since a reliable scientific background is lacking, their conservation is based on precautionary approaches, the applicability, and...

This article includes 23 new records of alien and cryptogenic species in the Mediterranean Sea, belonging to 4 Phyla (Chordata, Echinodermata, Arthropoda and Mollusca), distributed from the Alboran to the Levantine Sea. Records are reported from eight countries listed from West to East as follows: Algeria: new records of the Atlantic blue crab Call...

This Collective Article presents information about 21 taxa belonging to seven Phyla (one Ochrophyta, one Porifera, three Cni-daria, two Arthropoda, three Mollusca, one Echinodermata, and ten Chordata) and extending from the western Mediterranean Sea to the Levantine Sea. The new records were reported from nine countries as follows: Spain: first rec...

The northwestern part of the Levant Basin comprises important marine habitats such as Special Environmental Protected Areas (SEPA) including no-take zones. This preliminary study is the first to investigate the ichthyoplankton of the northwestern coasts of Levant Basin with particular emphasis on the contribution of Kaş-Kekova SEPA. Ichthyoplankton...

Suez pufferfish (Lagocephalus suezensis) is a Lessepsian species introduced to the Mediterranean via the Suez Canal. This study was carried out for the identification of some population dynamics parameters of Suez pufferfish (Lagocephalus suezensis) distributed along the western coast of Iskenderun Bay. Samples were seasonally collected from two tr...

As a consequence of national fishery statistics showing a sharp decline in the landings of white groupers (WG)-Epinephelus aeneus (Geoffroy Saint-Hilaire, 1817)-after 2010, the decision to ban any further fishing of the species was taken by the Turkish management authority in 2016. Stakeholders have since strongly objected to this decision claiming...

The Pope"s ponyfish Equulites popei (Whitley, 1932) is a marine fish native to the wide Indo-Pacific area and is considered an alien species in the Mediterranean Sea. A total of 10 individuals were collected, in May 2019, from Antalya Bay (Turkey, northwestern Levant Basin). These records represent the westernmost occurrence of the fish in the Medi...

This paper reports the range extension of Kyphosus vaigiensis in the northeastern (NE) Mediterranean. On 18 November, 2018, a single specimen of K. vaigiensis was caught in İskenderun Bay (36°45.6′ N, 35°40.8′ E) by a recreational fisherman and reported through a social media application. The specimen was identified using morphological and molecula...

In this study, data sets obtained by satellite remote sensing were used to understand light characterization and sea water-light interactions and evaluate inter-annual trends between September 1997 and March 2017. Photosynthetically active radiation (PAR) in terms of light intensity, and Euphotic depth (Zeu) and attenuation coefficient (KdPAR) in t...

Although sea temperature characteristics and their variations in the Mediterranean and Black Seas have been studied at length over the course of different time periods and varied areas of spatial coverage, there remains no specific evaluation of Turkish Seas. This study provides an assessment of sea surface temperatures during a period between Sept...

In this study, the diet composition and trophic ecology of four demersal chondrichthyan species; Etmopterus spinax, Galeus melastomus, Scyliorhinus canicula and Squalus blainville were studied in the eastern Aegean Sea. In the stomachs of the samples which mostly consisted of juvenile individuals, a total of 97 prey taxa were identified. Teleost fi...

Although sea temperature characteristics and their variations in the Mediterranean and Black Seas have been studied at length over the course of different time periods and varied areas of spatial coverage, there remains no specific evaluation of Turkish Seas. This study provides an assessment of sea surface temperatures during a period between Sept...

1. In this study, the variation of the biomass of some lessepsian fish species by depth was investigated. For this reason, 15 bottom trawl operations were conducted at 0-20, 20-40 and 40-60 m depth contours of Iskenderun Bay, in September 2013. 2. A 300 mesh trawl net was employed to collect samples. In this study, 79 different species belonging to...

1. In this study, the variation of the biomass of some lessepsian fish species by depth was investigated. For this reason, 15 bottom trawl operations were conducted at 0-20, 20-40 and 40-60 m depth contours of Iskenderun Bay, in September 2013. 2. A 300 mesh trawl net was employed to collect samples. In this study, 79 different species belonging to...

Western Antarctic Peninsula is one of the fastest warming areas on Earth and coastal areas of the region are foremost affected. Here we present the state of coastal plankton assemblages of the Galindez Island and Neumayer Channel, Western Antarctic Peninsula in austral autumn (April 2016). Surface water temperatures were ranged between −0.12 °C and...

Until present, bio-optical characteristics and their variations in the eastern Mediterranean and Black Sea have rarely been studied. In order to characterize the basic features of bio-optical variables found in the seas surrounding Turkey, remotely sensed data sets covering the period between September 1997 and March 2017 were studied for the purpo...

Nesting tracks of Sea Turtels.

TEMPORAL CHANGES OF THE NESTING TRACKS TO THE SEA TURTLES (Caretta caretta and Chelonia mydas) ON THE SUGÖZÜ BEACH ABSTRACT In this study, the seasonal distribution of the nesting tracks in the last decade on the Sugözü beach located on the west coast of Iskenderun Bay in between of Yumurtalık and Botaş was investigated. It was found that Green Tur...

The aim of this study was to determine the spawning season, spawning area, and length at first maturity of Pegusa lascaris in Iskenderun Bay (Northeastern Mediterranean Sea). For this purpose, experimental trawl operations in parallel with ichthyoplankton surveys were performed from September 2009 to October 2010 with monthly intervals. Both the re...

Here, abundance, diversity and composition of ichthyoplankton assemblages of İskenderun Bay was investigated in winter period together with environmental conditions. For this purpose, a total of 6 cruise works was performed between 7/12/2015 and 1/3/2016 at the six stations located at 10, 30 and 60m depth contours off Yumurtalık, İskenderun Bay. Sa...

z: Denizel kemikli balıkların çoğunda yumurta ve larval aşamalar planktonik özellik göstermektedir. Bu formlar aktif hareket kabiliyeti kazanıncaya dek balık planktonu anlamına gelen ihtiyoplankton kapsamında değerlendirilmektedir. Kemikli balıklar genellikle çok sayıda yumurta üretmekte; bu yumurtalardan önemli bir kısmı, açlık, predasyon, anormal...

This study was performed with the purpose of determining the main feeding aspects and the reproductive period of Saurida undosquamis from January to December 2010. The samples were obtained by trawl operations conducted in monthly intervals. The result regarding the feeding reveals that the most important feeding group is the teleost. The IRI value...

This study was performed with the purpose of determining the main feeding aspects and the reproductive period of Saurida undosquamis from January to December 2010. The samples were obtained by trawl operations conducted in monthly intervals. The result regarding the feeding reveals that the most important feeding group is the teleost. The IRI value...

http://www.blackmeditjournal.org/pdf/1.23(1)%202017%20EOzgurOzbek.pdf This study presents the results of the interviews with the fishermen, sightings records in the newspapers and electronic social networks and the details of eight sampled individuals of the lionfish, Pterois sp. in the eastern Mediterranean coast of Turkey. It is evident that the...

Landing statistics are important components of fishery management throughout the world. These data have also been used to calculate a few indices of ecosystem health, which would be calculated and reported at regular intervals to evaluate the effect of fishing on ecosystems (Pauly and Christensen (1995), Pauly et al. (1998), Coll et al. (2015)). Mo...

Object This study, in which the trace elements (Fe, Cu and Zn) accumulation in the muscle tissues of S. lessepsianus, P. erythrinus and M. barbatus have been investigated, was conducted seasonally between April 2008 and December 2009. S. lessepsianus, P. erythrinus and M. barbatus were caught by using a commercial bottom trawl net with 22 mm mesh a...

Objective: Trophodynamics are among the most significant constraints on larval survival and therefore, recruitment success of small pelagic fishes. However, little is known about this subject in the Mediterranean Sea. Therefore, the purpose of this study is to evaluate the feeding incidence and intensity of two concurrent larval Clupeiform fishes,...

The seasonal bottom trawl surveys those were conducted between 2004 and 2015, revealed that the composition of shallow-soft bottom habitats in Iskenderun Bay significantly changed because of the establishment and progress of lessepsian fishes after 2010. The recent invaders such as Nemipterus randalli and Pomadasys stridens were found to be respons...

Ichthyoplankton assemblages consist of pelagic eggs and larvae of fishes which reveal similar spatial and temporal spawning patterns. Resolving the connections between environmental conditions and icththyoplankton assemblages provides substantial understanding about the reproductive ecology marine fishes. Therefore, the purpose of this study was to...

Antarctic Treaty officially entered into force on 1961 with participation of 17 countries.The first initiation of Turkey to conduct scientific studies in Antarctic on 1991 remained inconclusive.However, Turkey became a part on non-advisory contractor of Antarctic Treaty on 1995 and declared its statute to the depository country on 1996.In the follo...

1. This study presents the occurrence, length-weight relationship and morphometry for Hemigrammocapoeta culiciphaga from Seyhan River Estuary (Baharlı village, Tarsus-Mersin), southern Turkey. 2. In December 2014, 16 specimens of H. culiciphaga were collected in high salinity zone of Seyhan River Estuary by shore-seine netting. 3. The samples were...

Specifying ontogenetic stages in respect of selected sampling method effectively illustrated would be a beneficial effect on the planning the studies on ichthyoplankton assemblages. Previous studies have reported that net avoidance capacity enhances as parallel with ontogenetic development. No research has been found that surveyed the changes of bi...

Conjoined twinning is a rarely existed gross malformation in natural conditions. The term refers to the two individuals united at any part of their bodies. The extraordinary incidences of conjoined twinning cases may reflect important problems on the marine environment. Therefore, the purposes of this study were to report the incidences of Trachuru...

OCCURRENCE OF ENDEMIC FRESHWATER SPECIES CROSSOCHEILUS CAUDOMACULATUS AND ITS LENGTH-WEIGHT RELATIONSHIP IN HIGH SALINITY ZONE OF SEYHAN RIVER ESTUARY Deniz Innal*, Duygu Akdoğanbulut*, Mehmet Aksu* and Sinan Mavruk** *Department of Biology, Mehmet AkifErsoy University, Istiklal Campus. 15100, Burdur, Turkey, innald@yahoo.com **Çukurova University...

This study, in which the trace element (Fe, Cu and Zn) accumulation in the muscle tissues of S. undosquamis, P. erythrinus and M. barbatus have been investigated, was conducted seasonally between April 2010 and December 2013. The change in the amount of accumulated heavy metals (Fe, Cu and Zn) depending on seasons and years in the muscle tissue of...

This study, in which the trace element (Fe, Cu and Zn) accumulation in the muscle tissues of S. undosquamis, P. erythrinus and M. barbatus have been investigated, was conducted seasonally between April 2010 and December 2013. The change in the amount of accumulated heavy metals (Fe, Cu and Zn) depending on seasons and years in the muscle tissue of...

Objective: Mesopelagic fishes are important components of pelagic zones of oceanic systems and also represent a major area of interest within the field of marine ecology and fishery science. Although extensive research has been carried out on neritic fish populations of Northeastern Mediterranean; there is little effort to contribute to our underst...

Objective: Marine ecosystem comprises various habitats where inhabitants have different adaptive priorities to survive and sustain their populations. Spawning strategies can be considered among the most important adaptations that determine the reproductive success by regulating the match-mismatch dynamics. Therefore, the objective of this study is...

Symposium Abstract Book, 428’th page

The Black Sea is an important ecosystem in Turkish marine fisheries. The early stages of economical fishes of the Black Sea can be considered well known; however, there are significant data deficiencies on ichthyoplankton assemblages and their structures. Therefore, seasonal changes of structure and dynamics of ichthyoplankton assemblages of Sinop...

Some Rajiformes species among the cartilaginous fish (Chondrichthyes) that are distributed on the west coast of the Gulf of İskenderun were seasonally obtained by bottom trawling from 2 different depth layers between the years 2004 and 2011. The spatiotemporal changes in catch per unit effort (CPUE) values were investigated by considering 2 depth c...