Nuri BAŞUSTA

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• PhD.
• Head of Marine Biology Department at Fırat University

Simple Summary Skates and rays generally have low fecundity, delayed maturation age and slow growth rates. These life history traits make them very vulnerable to commercial fisheries’ activities, although they are not usually target species. Understanding age and growth is important for stock assessment of the long-nose skate. We believe that deter...

Coastal areas face significant pressures from a variety of human activities, owing primarily to population growth in these areas. Human activities produce a variety of contaminants, including trace metals, which are common forms of contamination that enter marine ecosystems. This study was carried out to provide information on trace element concent...

The sandbar shark (Carcharhinus plumbeus) is a large coastal species with a cosmopolitan distribution that has been listed as Endangered in the Mediterranean Sea and as Vulnerable for the rest of the world on the IUCN Red List of threatened species. The Gökova's Boncuk Cove in south-western Turkey and the Gulf of Gabès in southern Tunisia are the o...

Encompassing a staggering array of species, elasmobranchs (sharks and rays) and chimaeras are ecologically vital creatures that have long played an important role in maintaining healthy marine ecosystems. Hailed by some as God-like creatures (Baughman, 1948), they have been feared by others due to their negative portrayal throughout history. Unfort...

Phylogenetic relationships of seven shark species (Squalus blainville, Carcharhinus plumbeus, Galeus me-lastomus, Scyliorhinus canicula, Isurus oxyrinchus, Mustelus mustelus and Oxynotus centrina) sampled from Turkish marine waters were examined using the mtDNA cytochrome b region. There were 293 variable and 74 conservative nucleotides, 279 of whi...

Bu çalışmada İskenderun Körfezi’nden avlanan 43 adet dikenli öksüz balığına (Peristedion cataphractum) ait bireylerin otolit biyometrisi-balık boyu ve ağırlıkları arasındaki ilişkiler incelenmiştir. Dikenli öksüz balıkları İskenderun Körfezi açıklarından yaklaşık 400-450 m derinliklerde, ticari trol teknesiyle yakalanmıştır. Yakalanan dikenli öksüz...

Between 1973 and 2023, a total of 63 species had been protected in Turkish marine areas according to national legislation 1380 (Official Notice for Regulating Commercial Fisheries of Water Resources, No. 5/1). Notably, sturgeon species were at the forefront of these conservation efforts, with initiatives beginning in 1976 and continuing to the pres...

ABSTRACT Pilot fish (Naucrates ductor (Linnaeus, 1758)) is an agile fish that used to swim under ships, often accompanied by sharks, and is therefore also called pilot fish. It lives warm and temperate seas and feeds on algae, sea worms, crustaceans and especially the remains of sharks. On 20 September 2024, a young specimen of N. ductor with 20.7...

ABSTRACT Shorfin mako shark Isurus oxyrinchus Rafinesque, 1810, is extremely active epipelagic shark that swims near the surface but also descends to 500m. Isurus oxyrinchus preys on a great variety of fish, some as large as their predator. It is very dangerous, many attacks on humans were reported around the world. Highly esteemed game fish and a...

In this study, a total of 432 specimens of Hoplostethus mediterraneus was captured by commercial trawler from northeast Mediterranean. The total length ranged from 6.4 to 17.6 cm in females and from 6.5 to 18.6 cm in males. Growth parameters of the von Bertalanffy growth function were L∞=23.57 cm, K= 0.1409 year-1, t = -1.675 years in females and L...

In this study, total length-weight relationships of the Armed gurnard (Peristedion cataphractum) were examined in the Gulf of Iskenderun. P. cataphractum specimen were captured at a depth of 80-110m by commercial trawlers off the Gulf of Iskenderun. A total of 81 (47 male and 34 female) P. cataphractum were obtained. Minimum-maximum total length an...

Oilfish (Ruvettus pretiosus Cocco, 1829) are caught as single individuals by deep-sea longlines, but the catch is too small to be of commercial importance. They generally live cosmopolitanly in all tropical and subtropical seas. In this study, oilfish individuals which are rare in the Mediterranean, have been reported for the second time off Iskend...

The arrow bulleye, (Priacanthus sagittarius Starnes, 1988) is nocturnal fish and mostly inhabits on reefs at depths of 60-100 m, although it can also be found near the surface. This fish passed from the Red Sea to the Mediterranean via the Suez Canal. In this study, a specimen of the arrow bulleye which is Indo-Pasific fish have been reported for t...

Understanding the growth patterns and the age composition of Squalus acanthias (piked dogfish) populations, from Romanian marine area, helps to elaborate sustainable fisheries management practices because changes in population parameters could indicate shifts in prey availability, habitat quality issues, or fishing pressure. In recent years, the of...

MERSİN KÖRFEZİ'NDE (TÜRKİYE) YAŞAYAN HAMSİNİN (Engraulis encrasicolus) OTOLİT BİYOMETRİSİ ÖZ Bu araştırmada, Mersin Körfezi'nde yaşayan hamsinin (Engraulis encrasicolus) boy ve ağırlıkları ile otolit boy ve genişlik değerleri arasındaki ilişkiler araştırılmıştır. Engraulis encrasicolus türüne ait balık bireyleri Mersin Körfezi, Tuzla açıklarından 2...

In the marine ecosystem, marine water fishes are generally known to be trophic apex predators in the food web in which they perform top-down control and are controlled in a bottom-up fashion. They are the main sources of protein to humans considering the potential volume and surface area of the world’s marine environment. Due to ongoing global atmo...

The greater forkbeard, Phycis blennoides is captured by commercial trawler, has minor commercial value in Türkiye. This study is the first knowledge on otolith biometry-fish size relationships of Phycis blennoides living in the northeastern Mediterranean Sea. A total of 202 the greater forkbeard individuals were caught by commercial bottom trawl at...

The honeycomb stingray Himantura uarnak (Gmelin, 1789) is one of the non-indigenous species in habiting eastern Mediterranean Sea. A single pregnant female was accidentally captured in March 2022 in the commercial purse seiner fishing. The taxonomic identification of this species has been confirmed by using DNA barcoding. The present study provides...

OTOLITH BIOMETRY OF MEAGRE (Argyrosomus regius) INHABITING NORTHEASTERN MEDITERRANEAN In this research, the relationships between the fish length and weights and otolith dimensions of meagre (Argyrosomus regius) inhabiting Mersin Bay were examined. Argyrosomus regius individuals were captured by commercial trawling boat between December 2021- Sept...

The Rapa Whelk (Rapana venosa Valenciennes, 1846) was first noticed in the Black Sea as a commercial value in 1982. The activities carried out and the results obtained in the 40-year period from this date to the present are presented to the attention of the public and the scientific community in this article. Although it is understood to be a marin...

In this research, total length-weight relationships of meagre (Argyrosomus regius) were examined in the Mersin Bay. Argyrosomus regius individuals were captured by commercial trawling boat between December 2021- September 2022 at a depth of 30-35m from Tuzla coasts in the Mersin Bay, Tuzla Coasts. A total of 185 (93 female and 92 male) A. regius we...

Within the eastern Mediterranean, increased fishing pressure coupled with a lack of basic biological information is threatening the sustainability of the rare Lusitanian cownose ray (Rhinoptera marginata). To provide baseline life-history data for this species, age estimates were obtained from vertebral band counts of 224 rays (size range: 210–998...

This study was carried out to determine the length-weight relationships of greater forkbeard, Phycis blennoides (Brünnich,1768), obtained from northeastern Mediterranean Sea. Total length-weight relationships of greater forkbeard were examined for each sex in a population of northeastern Mediterranean Sea. P. blennoides samples were captured by...

This study is determined the molecular characterization of R. venosa based on the mitochondrial cytochrome c oxidase subunit I (COX1) sequence data in the Middle Black Sea of Turkey.

Little is known about possible differences in sagitta otolith size and shape between sexes of the shi drum, Umbrina cirrosa, and relationships between their body and otolith size. Thus, this study aimed to fill this knowledge gap via examination of 414 sagittal otoliths from 108 male (total length 13.8–26.8 cm) and 99 female (13.5–26.7 cm) U. cirro...

The aim of the present study was the compar-ative analysis of accuracy, precision, and quality control in age determination for Leuciscus vorax (Heckel, 1843) using different calcifiFed structures: dorsal fin, operculum, otoliths, scales, and verte-brae. Specimens were collected monthly from the Karakaya Dam Lake, Malatya, Turkey using gill-nets fr...

Between September 2010 and June 2012, a total 291 (166 females and 125 males) blackchin guitarfish Glaucostegus cemiculus were captured by a commercial bottom trawler (F/V Coşkun Reis) in Iskenderun Bay, Turkey (northeastern Mediterranean Sea). The total length (L) and total weight (W) of the female and male guitarfish ranged between 32.0–165.0 cm...

Fish specimens were captured by a commercial bottom trawler at a depth of 50–80 m from Iskenderun Bay (Hatay, Turkey) between December 2017 and May 2018. The bottom trawl gear used was equipped with a 44 mm stretched mesh size net at the cod-end. Blind side and eyed side otolith lengths (OL), otolith breadths (OB) and otolith weights (OW) were meas...

This study aimed to determine the age and some growth characteristics of Atlantic stargazer (Uranoscopus scaber) from Iskenderun Bay (Northeastern Mediterranean). For this purpose, a total of 150 Atlantic stargazer ranging in size from 9.1 to 28.0 cm in total length (weight: 11.7–345.7 g) were collected as by-catch from a commercial trawl fishing b...

Background. The population of Lagocephalus spadiceus (Richardson, 1845), one of the Lessepsian species that migrated from the Red Sea to the Mediterranean Sea through the Suez Canal, has been growing rapidly in Turkey in recent years. This situation poses a serious danger to fisheries and human health. There is little information about the biology...

In this study, the age and some growth characteristics of the European hake, Merluccius merluccius, from the northeastern Mediterranean were examined during 2015-2016 fishing season. A total of 661 European hake ranging from 9.8 to 51.6 cm in total length was captured by commercial trawler. Female/male ratio was 1/1.15. Age determination was conduc...

In this study, the age and some growth characteristics of the European hake, Merluccius merluccius, from the northeastern Mediterranean were examined during 2015-2016 fishing season. A total of 661 European hake ranging from 9.8 to 51.6 cm in total length was captured by commercial trawler. Female/male ratio was 1/1.15. Age determination was conduc...

In this study, morphometric features such as total length, standard length, and fork length obtained from a total of 321 gilthead sea bream, Sparus aurata species, including 164 females and 157 males, captured between 2012-2013 from Iskenderun Bay were used as input value, while weight was used as an output value. The Artificial Neural Network (MLP...

Background. Synchiropus phaeton (Günther, 1861) is a sexually dimorphic, benthic species that inhabits mud bottoms. This fish is one of the important by catch species in the trawl fishing. There is no commercial value. But it has ecological importance in this area. The information about the biology of S. phaeton is very limited. This study was cond...

OTOLITH DIMENSIONS-FISH SIZE OF ATLANTIC STARGAZER (Uranoscopus scaber L., 1758) CAPTURED FROM NORTHEASTERN MEDITERRANEAN ABSTRACT This study provides the first information on the otolith dimensions-fish size relationships of Atlantic stargazer, Uranuscopus scaber inhabiting Iskenderun Bay, northeastern Mediterranean Sea. Fish specimens were captur...

In this study, total length-weight relationships and condition factor of shi drum (Umbrina cirrosa) were examined in the Northeastern Mediterranean Sea. Umbrina cirrosa individuals were captured by gillnets between May 2017-April 2018 at a depth of 15 m from Mersin Bay. A total of 218 (115 male and 103 female) U. cirrosa were collected. Minimum-max...

Herein, we report the first data estimated age and back-calculation growth at age from sectioned vertebrae readings of a giant devil ray, Mobula mobular, from the Antalya Bay within the Mediterranean Sea. The single male specimen measured 335cm in total length (TL), 272 cm in disc with (DW) and 105 kg in weight, and was aged to 9 years old. Age est...

The aim of this study is to report a new record of marine leech, Pontobdella muricata (Linnaeus, 1758) from Iskenderun Bay, northeastern Mediterranean. Fish samples were collected during a trawl fishing conducted at a depth ranging from 150 to 300 m in Iskenderun Bay, Turkey. Fish samples, infected with marine leech, was transferred to the ecophysi...

In this study, the juveniles and adult male of longnosed skate, Dipturus oxyrinchus (Linnaeus, 1758), were caught as by-catch from a commercial trawl fishing at depths between 300-410 and 360-400 m in the international waters of Northeastern Mediterranean Sea. The juveniles and mature male of longnosed skate were found for the first time in this re...

Abstract: In this study, the egg capsules and juveniles of thornback skate (Raja clavata Linnaeus, 1758) were collected as by-catch from a commercial trawl fishing at depths between 220-298 m in the international waters of Northeastern Mediterranean Sea. Juvenile specimens and egg capsule of thornback skate were identified for the first time in thi...

Chondrichthyan or cartilaginous species, throughout the world, are found among fisheries by-catch. In this study, 52 studies conducted between 1991 and 2018 in Turkish waters were reviewed to assess the status of chondrichthyan species as by-catch. Geographic coverage was grouped as; Black Sea (the number of studies 5), Sea of Marmara (6), Aegean S...

This study provides the first information on the otolith dimensions-fish length relationships of Hoplostethus mediterraneus in the Northeastern Mediterranean Sea. Fish samples were caught by commercial bottom trawler at a depth of 200 to 380 m off the Iskenderun Bay (Hatay, Turkey). A total of 432 fish specimens were examined. Minimum-maximum lengt...

This study was carried out to determine the length-weight relationship of Coelorinchus caelorhincus obtained from northeastern Mediterranean. A total of 545 fish samples (263 females and 282 males) were collected. Female/male ratio of this species was 1.07/1. The length-weight relationships of Coelorinchus caelorhincus were estimated as W=0.0024*L...

A checklist of non-indigenous marine fishes including bony, cartilaginous and jawless distributed along the Turkish Marine Waters was for the first time generated in the present study. The number of records of non-indigenous fish species found in Turkish marine waters were 101 of which 89 bony, 11 cartilaginous and 1 jawless. In terms of occurrence...

This study determines the catch composition of fish caught by commercial trawling in the Northeastern Mediterranean throughout the 2012-2013 fishing season. An analysis of the reliability of trawl catch subsamples found the Cronbach's Alpha value to be 0.73, which indicates the sampling was accurate. The highest CPUE value was recorded at 31.12 kg/...

Surface temperature of the Black Sea increased due to climate chang e during the 20th century and continues to rise. Here we present by in situ data-correctedremote-sensed SST data covering a 34-year period (1982–2015). Using a linearblack box model, we predicted the Black Sea surface temperature (SST) up to2100. During the 34-year study period, we...

Batoid chondrichthyans are vulnerable to commercial fisheries even though they are often not targeted. A greater understanding of their reproductive biology is important to facilitate their conservation. In February 2013, 89 female and 40 male Lusitanian cownose ray (Rhinoptera marginata) specimens were accidentally caught in Mersin Bay in the east...

Aim of this study is to determine the length-weight relationships of streaked gurnard, Trigloporus lastoviza, caught from northeastern Mediterranean. T. lastoviza specimens were captured by commercial bottom trawler at depth of 155 to 212 m off the Iskenderun Bay, Turkey. A total of 84 specimens (52 females and 32 males) were collected. Minimum-max...

Background. Shark populations within the eastern Mediterranean are declining due to overfishing. Unfortunately, our knowledge on the biology of sharks and specifically dogfishes within eastern Mediterranean is extremely limited due to the lack of landings. Mustelus mustelus (Linnaeus, 1758) is one of such deficiently known cartilaginous fishes and...

Glaucostegus cemiculus individuals were collected from two different areas, the estuary of the Gediz River, Izmir Bay (Aegean Sea) on the west and Karataş, Iskenderun Bay on the northeastern coasts of the eastern Mediterranean. Total of 383 individuals (190 male, 193 female) were examined. Individuals ranged between 30-148 cm TL and 81-12010 g. The...

Blackmouth catshark Galeus melastomus samples were collected using trawl operations from the deep sea area of the Gulf of Antalya, Turkey, in September and October 2016. The present study aims to clarify the status (prevalence and mean intensity) of endo-parasite infection in blackmouth catshark. All parasite specimens were identified as Grillotia...

A total of 1150 lesser spotted dogfish (Scyliorhinus canicula L., 1758), (562 female, 588 male) were collected by commercial trawlings in depths of 155-400 m in the Northeastern Mediterranean Sea between March 2012 and May 2014. Total length and weight of the fish were ranged from 12.0 to 51.0 cm and 4.13 to 396.0 g, respectively. It was determined...

Age and growth estimates were determined for the first time in bull ray Aetomylaeus bovinus (E. Geoffroy Saint-Hilaire, 1817) (Chondricthyes: Myliobatidae) from the northeastern Mediterranean coast of Turkey. A total of 94 bull rays ranging from 29.5 to 129.2 cm disc width and weighing 0.27 – 33.60 kg. They were collected as by-catch by commercial...

In this study, alcian blue staining technique was used to enhance the visibility of the band on vertebrae of Lagocephalus sceleratus from Mersin Bay, Turkey, Northeastern Mediterranean. A total of 77 L. sceleratus samples were captured by commercial purse seine nets at depths between 24 and 50 m from Mersin Bay (Turkey). The total length ranged fro...

Cartilaginous fishes of the Mediterranean can not cope with the heavy fishing pressure due to their slow growth rate and long, costly and long embryo bearing, and extremely low fecundity; and yet some of the species are listed among the red lists and protected by national regional and international organisations such as IUCN and urgency in protecti...

On 10 March 2017, thirty individuals of giant devil ray, Mobula mobular, were caught accidentally by a commercial purse seiner at a depth of approximately 25 m off Beşadalar, the Gulf of Antalya. Of the thirty specimens, two are described in detail. M. mobular was recorded for the first time in the Gulf of Antalya (Eastern Mediterranean Sea).

This study investigated the age and growth characteristics of spiny gurnard, Lepidotrigla dieuzeidei, from the Northeastern Mediterranean. For this purpose, samples were collected by commercial trawles during 2012-2013 fishing seasons. A total 1878 speciments ranged from 7.10 to 15.90 cm in total length and 2.28-35.88 g in weight. Female/male ratio...

This study describes the length-weight relationship (LWR) for Serranus hepatus species from Iskenderun Bay, Northeastern Mediterranean, Turkey. A total of 202 S. hepatus individuals were caught from Iskenderun Bay, during the 2015-2016 fishing season. The total length ranged from 5.7-9.5cm and body weight 2.23-12.19 g for S. hepatus. Length-weight...

In this study, six chondrichthyan species (Raja clavata, Raja miraletus, Raja asterias, Torpedo marmorata, Rhinobatos rhinobatos and Gymnura altavela) were captured for age determination in Iskenderun Bay (North eastern Mediterranean Sea) between May 2010 and January 2012. Age was determined from vertebral sectioned, using four staining techniques,...

Turkey is divided into 25 hydrologic basins depending on the topographic structure. These basins have different productivities and potentials in relation with the annual rainfall they receive. Among them, Firat-Dicle Basin that constitutes approximately 47.7% of the water potential of the whole country, takes the first place in terms of water produ...

In this study, parasitic isopods Anilocra frontalis and Ceratothoa capri were collected from some fishes by trawling in Antalya Bay, in February, 2015. These isopods were observed on the elasmobranch for the first time. Three of these hosts (Raja miraletus, Sphyraena sphyraena, Spicara maena) are new hosts for A. frontalis and C. capri.

Within the eastern Mediterranean, sharks skates and rays are caught primarily as non-targeted bycatch within various artisanal fisheries and discard due to low commercials value. Since rays are rarely landed, determining the fisheries induced impacts for these cartilaginous fish is difficult and severely inhibits accurate populations’ assessment. C...

In this study, age and growth of juvenile and semi adult Atlantic electric ray were reported for the first time and safranin-o method was also used to stain sectioned vertebrea of this species. A total of 93 Torpedo nobiliana that are 12.0 to 35.5 cm were collected as by-catch by trawl fishermen between September 2010 and December 2011. There was n...

Three species of marine leeches; Branchellion torpedinis Savigny, 1822, Pontobdella muricata (Linnaeus, 1758) and Stibarobdella moorei (Oka, 1910) were collected from Pteromylaeus bovinus (Geoffroy Saint-Hilaire, 1817) Dasyatis pastinaca (Linnaeus, 1758) and Raja miraletus Linnaeus, 1758 respectively, captured by R/V "Akdeniz SU" from depths of 10,...

Juveniles and egg capsules of smallspotted catshark Scyliorhinus canicula were obtained as by-catch from a commercial trawl fishing at depts between 300-398 m in the Northeastern Mediterranean Sea. Egg capsules and juveniles of S. canicula were identified for the first time in the this region.

Galeus melastomus have been captured as by-catch from commercial trawl fishing at 300-410 m and 360-400 depths, in the international waters of North-eastern Mediterranean (between 36º 06'200 N -35º35'432 E and 36º 03'795 N -35º 29'098 E) and (between 36º06'004 N -35º23'821 E and 36º 06'152 N -35º 36'966 E). The presence of juvenile individual in Ma...

In this study, Lenght-Weight relationships (LWR) of sandbar shark were examined for the first time in a population of the Northeastern Mediterranean Sea. The LWR estimated for combined sexes was: W= 0.01*TL (r =0.915, SE =0.174). LWR for females was W= 0.0034*TL (r =0.912, SE =0.278) and for males W= 0.0039*TL (r =0.915, SEb =0.231). The type of gr...

Three species of neonate and juvenile sharks (Heptranchias perlo, Squatina aculeata, Etmopterus spinax) were captured as by-catch from a commercial trawl fishing from depths between 360 and 430 m in the Northeastern Mediterranean Sea. Two neonates of H. perlo, five neonates of E. spinax and one juvenile of S. aculeata were for the first time identi...

In this study, it was aimed to determine the total length-weight relationship of (Merluccius merluccius) caught from Northeastern Mediterranean. The catching of European hake fish has gradually increased in recent years. This has made it necessary to evaluate in terms of fisheries biology of this species. Although there are many studies on the leng...

This study tested the suitability of several staining methods to determine the age of common stingray (Dasyatis pastinaca) from Iskenderun Bay. A total of 384 specimens (16.6 cm-69.3 cm disc width) were obtained by trawling between September 2010 and December 2011. The sex ratio of the samples was 53 % males and 47 % females. The appropriate age de...

In this study, stomach content of Mustelus mustelus (Linnaeus, 1758) obtained from the northeastern Mediterranean were examined to determine seasonal diet regime. For this purpose, 123 of M. mustelus with 44.3-149.0 cm in total length and 8776-247.6 g in weight that were caught between April 2012-2014 for examination. 120 of them (97.5%) were found...

Bu çalışma Kuzeydoğu Akdeniz’de yakalanan ve kütük balığı olarak bilinen Hoplostethus mediterraneus türünün total boy- ağırlık ilişkilerinin saptanması amacıyla yapılmıştır. Kütük balığına ait toplam 380 örnek (143 dişi- 237 erkek) ticari trol teknesi ile ul uslararası sularda yapılan avcılıkta yaklaşık 200- 380 m derinliklerde hedef dışı tür olara...

(In this study, stomach contents of 604 specimens of Scyliorhinus canicula (Linnaeus, 1758) obtained from the Northeastern Mediterranean between May 2012- March 2014 were examined to determine diet regime. 482 of the sampled fish (79.8%) had stomachs containing food. For each prey group, percentage numerical presence, percentage weight, frequency o...

In this third Collective Article, with fisheries-related data from the Mediterranean Sea, we present the historical length distribution of Lophius budegassa in the catch of commercial trawlers in the Greek seas; length-weight and length-length relationships of five flatfish species (Lepidorhombus boscii, L. whiffiagonis, Platichthys flesus, Pegusa...

In this third Collective Article, with fisheries-related data from the Mediterranean Sea, we present the historical length distribution of Lophius budegassa in the catch of commercial trawlers in the Greek seas; length-weight and length-length relationships of five flatfish species (Lepidorhombus boscii, L. whiffiagonis, Platichthys flesus, Pegusa...

In this study, the Bluntnose six-gill shark, Hexanchus griseus was recorded for the second time from Iskenderun Bay (northeastern Mediterranean) increasing its distribution along the Turkish coast. A young of H. griseus specimen was caught as bycatch from commercial purse-seine fishery at a depth of 60 to 70 m off the Iskenderun Bay (36º 24’ 52.76”...

This study was carried out to determine the age and growth characteristics of Trachinus draco in the North-eastern Mediterranean during 2013-2014 fishing season. A total 532 Trachinus draco ranged from 13.5 to 32.0 cm in total length was caught by trawl and gill nets. The population consists of 45.89% for females and 54.11% for males. The total len...

Bu derlemede, deniz canlılarının ve bu canlılardan elde edilen maddelerin, gerek besin gerekse medikal alanlarda kullanımları üzerinde durulmuştur. Bugüne kadar yapılan çalışmalar, deniz canlılarının bulundurduğu kalsiyum, iyot, vitaminler, protein, antioksidan maddeler ve bazı biyoaktif bileşiklerin kalp hastalıkları, kanser, diyabet, kolesterol,...

In this second Collective Article with fisheries-related data from the Mediterranean Sea we present the evaluation of bony structures in aging of Barbus tauricus, otolith dimensions-body length relationships for two species (Trachinus draco and Synchiropus phaeton), information on the growth of juvenile Thunnus thynnus and of Ruvettus pretiosus, we...

In this study, two individuals of the angular rough shark were captured as discard by commercial trawler. Gravid female of Oxynotus centrina was recorded for the first time from the northeastern Mediterranean. Occurence of a gravid female and adult male of O. centrina at northeastern Mediterranean Sea strongly indicate that there is a nursery area...

The goal of this study was to determine the best bone structure for age determination in Salmo macrostigma. During the study, comparative age determinations were performed on a total of 243 fish samples by using the operculum, suboperculum, preoperculum, interoperculum and vertebrae bony structures. In comparing the ages of five bony structures, th...

In this study, length–weight relationships of two seahorse species were determined inhabiting Eastern Black Sea. Hippocampus hippocampus (38) and Hippocampus guttulatus (139) individuals were obtained by commercial fishermen in the Eastern Black Sea. Length-weight relationships of H. hippocampus were found as W=0.012TL2.41 (R²=0.90) and length-weig...

According to reports, the following 16 species have extended their distribution to other Mediterranean areas or have made a new appearance in other regions. The first category includes the following organisms: The rare and common Indo-Pacific seaweed Codium arabicum (Lebanese coasts), the acari Thalassarachna affinis (Marmara Sea), and the non-indi...

In this review, bio-ecological characteristics, fishing, production, population structure and fisheries management of thornback skate (Raja clavata) inhabiting in the Black sea have been compiled. There is no detailed information on the present status of the stock structure and population dynamics of Raja clavata in the Black sea. This species is a...

1 , L. LIPEJ 13 , O. MARKOVIĆ 10 , B. MAVRIČ 13 , Y. ÖZVAROL 12 , V. PESIC Abstract According to reports, the following 16 species have extended their distribution to other Mediterranean areas or have made a new appearance in other regions. The first category includes the following organisms: The rare and common Indo-Pacific seaweed Codium arabicum...

In this study the length-weight relationships (LWRs), length-length relationships (LLRs) and relative condition factor were determined for Lagocephalus suezensis captured in the Gulf of Iskenderun, northeastern Mediterranean Sea. Sampling was carried out by commercial bottom trawls using at 24 and 50 meters depths during August and December 2012. T...