Responsible aquaculture, the farming of aquatic organisms, is a sustainable strategic sector for ... more Responsible aquaculture, the farming of aquatic organisms, is a sustainable strategic sector for land and coastal communities. It significantly contributes to food security and enhancement of economic development; it provides employment opportunities and often contributes to the ecological services provided by the environment. According to the Food and Agriculture Organization of the United Nations, the contribution of aquaculture to the global food security is widely demonstrated by an astounding industry growth of 7.5% per year since 1970. In 2018, aquaculture reached the all-time highest production of 114.5 million tonnes in live weight with a total farm gate sale value of USD 263.6 billion. This makes aquaculture a key player within the Blue Growth concept and a strong contributor to some of its key Sustainable Development Goals. This is particularly true in geographical areas where dependence of local economies on fishery products is high, and yet access to sustainable landings is hampered by ecological barriers. One such area is represented by the Black Sea basin. Whilst the Black Sea annual capture fishery production has varied considerably since 1990 and its current landings are significant, growing attention is currently given to boost aquaculture development along the Black Sea bordering countries, with marine aquaculture being considered as an important contributor to the total fisheries production. Nonetheless, aquaculture development in this region is not homogenous and its development has, so far, been limited by environmental, economic, social, and more generally governance issues. This paper, for the first time, attempts to provide a comprehensive fresh outlook of the aquaculture sector in the Black Sea, stressing the importance of regional cooperation as an essential pillar to support the sustainable development of the industry. The paper addresses aquaculture in the Black Sea from different perspectives: it outlines the key characteristics of the Black Sea environment; it discusses the most common farmed aquatic species and the potential for new ones; it frames the national approaches to aquaculture development, sharing information about success stories, while shedding light on the main challenges and priorities ahead. This collective endeavour will represent a helpful contribution to Black Sea riparian countries to answer the many questions they have, and expectations they hold from the aquaculture sector.
Son yıllarda nesli tehlikede olan balık türlerinin doğal stoklarının yapılandırılması için kontro... more Son yıllarda nesli tehlikede olan balık türlerinin doğal stoklarının yapılandırılması için kontrollü şartlarında üretilmeleri önem kazanmaktadır. Mersin morinaları da nesli tehlikede olan balıklardandır. Bu çalışmada anaç stoku oluşturmak için Karadeniz'in Türkiye sahil sularında yakalanan genç mersin morinaları tank ortamına adapte edilmiştir. Bireysel "T-bar" ile markalanan ve mezgit balığıyla beslenen mersin morinalarının büyüme, yem değerlendirme ve yaşama oranları incelenmiştir. Ağırlıkları 0.5-2.2 kg arasında değişen mersin morinalarının çiftlik şartlarında Spesifik Büyüme Oranı (SBO) 0.36±0.09, Günlük Ağırlık Artışı (GAA) 4.7±1.25 g/gün ve Yem Çevirme Oranı (YÇO) ise 5.07 olarak belirlenmiştir. Sonuç olarak, mezgit balığının doğal stokların yapılandırılması ve canlı muhafaza gibi çeşitli maksatlar ile doğal ortamdan yakalanan mersin morinalarının kültür şartlarına adaptasyonlarında ve rutin beslenmesinde kullanılabileceği görülmüştür.
Turkish Journal of Fisheries and Aquatic Sciences, 2015
The effects of four concentrations of clove oil (150, 300, 450 and 600 mg L -1 ) as ananaesthetic... more The effects of four concentrations of clove oil (150, 300, 450 and 600 mg L -1 ) as ananaesthetic substance at three temperature levels (10, 15 and 20°C) and three fish size (as weight) groups (57.0±11.3, 103.0±11.9 and 457.0±89.8 g) on induction and recovery times in turbot (Psetta maxima) were investigated in this study. The fish were individually exposed to each clove oil bath in 10, 20 or 50L buckets with respect to fish size and were recovered in a 500-L tank with running seawater. Temperature, fish size and clove oil concentrations were found to have significant effects on induction and recovery times in turbot (P<0.01). Induction and recovery times were both less than half when the temperature was increased from 10 to 20°C (P<0.01). The duration to reach surgical anaesthesia and recovery times of small size turbot varied in relation to temperature, but were generally shorter than big size turbot (P<0.01). Overall, the increase of clove oil concentration from 150 to 6...
In this project, Rainbow trout’s (Oncorynchus mykiss, Walbaum 1792) differences on feeding and gr... more In this project, Rainbow trout’s (Oncorynchus mykiss, Walbaum 1792) differences on feeding and growing evaluations have been observed, by this way, preferable fish size during stocking to the sea cages and most profitable way of using during feeding season at limited temperatures and for obtaining desirable harvested fish weights, the initial fish weights and montly growing rates establishments have been aimed.
Introduction Bu çalýþmada karaca mersininin (Acipenser gueldenstaedtii Brandt, 1883) sperm kalite... more Introduction Bu çalýþmada karaca mersininin (Acipenser gueldenstaedtii Brandt, 1883) sperm kalitesi ve sulandýrmadan sonra sýcaklýðýn sperm hareketliliði ve yaþama süresine etkisi çalýþýlmýþtýr. Spermler, 0.5 μg/kg sulfagon enjeksiyonu yapýlan dört balýktan alýnmýþtýr. Sperm kalitesi belirlendikten sonra, tatlý su ile sulandýrýlarak farklý sýcaklýklarda (4-24°C) muhafaza edilmiþtir. Hareketliliðin, karaca mersin balýðýnýn yumurta inkübasyonu sýcaklýðýna en yakýn olan 14°C'de 28. dakikaya kadar devam ettiði ve canlýlýðýn %5 olduðu görülmüþtür. Sperm canlýlýðýnýn 14°C'de 8. dakikaya kadar %50'den fazla olduðu belirlenmiþtir. Bu nedenle karaca mersini spermi sulandýrýldýktan sonra 8. dakikaya kadar döllemede kullanýlabilir.
Karadeniz Bolgesi’nde su urunleri yetistiriciligi 1972 yilinda icsularda gokkusagi alabaligi ileb... more Karadeniz Bolgesi’nde su urunleri yetistiriciligi 1972 yilinda icsularda gokkusagi alabaligi ilebaslamistir. Bolgede 1990’li yillarda deniz kafeslerinde gokkusagi alabaligi, levrek ve cipurabuyutme isletmeleri faaliyete gecmistir. Son yillarda kalkan ve deniz alabaligi turleri sektoretanitilmistir. Bolge icin midye, eskina, mersin ve kefal baliklari potansiyel turler olarak gorulmektedir.Calismada, Karadeniz Bolgesi’ndeki ic sularda beton havuz ve kafeslerde alabalikyetistiren, deniz kafes sistemlerinde alabalik, levrek ve cipura baliklarini buyuten isletmelerinkurulus ve gelisimleri degerlendirilerek, bolgedeki su urunleri yetistiriciliginin tarihsel gelisimiirdelenmis ve gelecekteki uretim projeksiyonu yapilmistir. Bu calismada Tarim Bakanligi’ninilgili birimlerindeki kayitli bilgiler ve arazi calismalarindan elde edilen veriler kullanilmistir.Bolgede deniz kafeslerinde yaklasik 3 500 ton/yil alabalik ve 750 ton/yil levrek uretim kapasitesinesahip 10 isletme bulunmaktadir. Bolgede...
... PROJE NO: TAGEM/HAYSÜD-2001-07-01-04 Dr. Bilal AKBULUT (Proje Lideri) ... Mersin balıklarının... more ... PROJE NO: TAGEM/HAYSÜD-2001-07-01-04 Dr. Bilal AKBULUT (Proje Lideri) ... Mersin balıklarının yumurta bırakmak için girdiği Samsun ilinden Karadeniz&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#x27;e dökülen Kızılırmak ve Yeşilırmak üzerinde Altınkaya ve Derbent barajları (Kızılırmak) ile Hasan Uğurlu ve Suat ...
Turkish Journal of Fisheries and Aquatic Sciences, 2011
The efficacy of clove oil as an anaesthetic was evaluated in Juvenile of Russian sturgeon (Acipen... more The efficacy of clove oil as an anaesthetic was evaluated in Juvenile of Russian sturgeon (Acipenser gueldenstaedtii) under two experiments. Dose response examined using four anaesthetic concentrations varying from 0.22 to 0.90 g/L of clove oil and effect of exposure duration on the recovery time analysed for 5 and 10 min. Mean body length (cm), 24.9±1.37 and weight (g) 63.2±10.89, n=120, juvenile Russian sturgeon placed individually to the anaesthetic bath prepared with clove oil, and induction (I1: Sedation and I2: Loss of equilibrium) and recovery times (R1: Regain of equilibrium and R2: Sedation) recorded in seconds. Allowing fish remain in the anaesthesia after fish reaching anaesthesia stage, time to recovery from anaesthesia recorded. Fish exposed to clove oil failured to respond to external stimuli and reached to anaesthesia, sympocal stage in <3 min and recovered in <5 min at all doses except 0.22 g/L dose of clove oil. Exposure five and ten minute to anaesthesia at t...
... Original title, Ekonomik deniz urunleri arastirma projesi. Personal Authors, Genc, Y.,Zengin,... more ... Original title, Ekonomik deniz urunleri arastirma projesi. Personal Authors, Genc, Y.,Zengin, M.,Basar, S.,Tabak, I.,Ceylan, B.,Ciftci, Y.,Ustundag, C.,Akbulut, B.,Sahin, T.(Fisheries Central Research Inst., Trabzon (Turkey)). ... Contact: Ferhat OZBAS. Tel: +90 312 344 73 59. ...
Turkish Journal of Fisheries and Aquatic Sciences, 2020
In this study, spawning period, total fecundity, fertilization and hatching rates of wild and hat... more In this study, spawning period, total fecundity, fertilization and hatching rates of wild and hatchery-reared turbot, Psetta maxima, were investigated. Fish were spawned over a 3-month period, from April to June. Wild broodstock consisted of sixteen females with a mean weight of 3742±1509 g. Hatchery-reared broodstock consisted of seventeen females with a mean weight of 3604±1398 g. Mean total fecundity was 2.4±1.71x10 6 and 2.3±1.75x10 6 eggs per female for wild and hatchery-reared broodstock, respectively. Fertilization and hatching rates were 59.2±17.07% and 67.3±30.67% for wild and 67.1±18.87% and 61.3±30.85% for hatchery-reared broodstock. The reproductive parameters of wild and hatchery reared turbot showed no significant difference, which warrants further investigation of both in provision of a sustainable fishery.
In this research, milt collection and cryopreservation with different extenders in endangered Rus... more In this research, milt collection and cryopreservation with different extenders in endangered Russian sturgeon (Acipencer gueldenstaedtii) which lives Black Sea and its tributary rivers were studied. The semen was collected by abdominal massage. Sperm motility classified to five categories. Cooling were carried out as follow; 3°C/min between 0 and-4 and 5°C/min between-4 and-10. Sperm were frozen using 5 different extenders and with 8% DMSO as cyroprotectant at-196 °C in liquid nitrogen. Spermatocrite ratios range from 65% to 91%. Sperm pH was determined 8.0. After 24 hours the deep frozen sperm samples were thawed by quickly immersing them in a water bath at 32 ºC under constant shaking for about 2 min, and freshwater was added to stimulate the sperm motility. In ten minutes after activation, the velocity and motility of sperm were ++ and 20%. Our results indicate that E2 extender was better than the others and may useful extender for cryopreservation of sturgeon semen.
Responsible aquaculture, the farming of aquatic organisms, is a sustainable strategic sector for ... more Responsible aquaculture, the farming of aquatic organisms, is a sustainable strategic sector for land and coastal communities. It significantly contributes to food security and enhancement of economic development; it provides employment opportunities and often contributes to the ecological services provided by the environment. According to the Food and Agriculture Organization of the United Nations, the contribution of aquaculture to the global food security is widely demonstrated by an astounding industry growth of 7.5% per year since 1970. In 2018, aquaculture reached the all-time highest production of 114.5 million tonnes in live weight with a total farm gate sale value of USD 263.6 billion. This makes aquaculture a key player within the Blue Growth concept and a strong contributor to some of its key Sustainable Development Goals. This is particularly true in geographical areas where dependence of local economies on fishery products is high, and yet access to sustainable landings is hampered by ecological barriers. One such area is represented by the Black Sea basin. Whilst the Black Sea annual capture fishery production has varied considerably since 1990 and its current landings are significant, growing attention is currently given to boost aquaculture development along the Black Sea bordering countries, with marine aquaculture being considered as an important contributor to the total fisheries production. Nonetheless, aquaculture development in this region is not homogenous and its development has, so far, been limited by environmental, economic, social, and more generally governance issues. This paper, for the first time, attempts to provide a comprehensive fresh outlook of the aquaculture sector in the Black Sea, stressing the importance of regional cooperation as an essential pillar to support the sustainable development of the industry. The paper addresses aquaculture in the Black Sea from different perspectives: it outlines the key characteristics of the Black Sea environment; it discusses the most common farmed aquatic species and the potential for new ones; it frames the national approaches to aquaculture development, sharing information about success stories, while shedding light on the main challenges and priorities ahead. This collective endeavour will represent a helpful contribution to Black Sea riparian countries to answer the many questions they have, and expectations they hold from the aquaculture sector.
Son yıllarda nesli tehlikede olan balık türlerinin doğal stoklarının yapılandırılması için kontro... more Son yıllarda nesli tehlikede olan balık türlerinin doğal stoklarının yapılandırılması için kontrollü şartlarında üretilmeleri önem kazanmaktadır. Mersin morinaları da nesli tehlikede olan balıklardandır. Bu çalışmada anaç stoku oluşturmak için Karadeniz'in Türkiye sahil sularında yakalanan genç mersin morinaları tank ortamına adapte edilmiştir. Bireysel "T-bar" ile markalanan ve mezgit balığıyla beslenen mersin morinalarının büyüme, yem değerlendirme ve yaşama oranları incelenmiştir. Ağırlıkları 0.5-2.2 kg arasında değişen mersin morinalarının çiftlik şartlarında Spesifik Büyüme Oranı (SBO) 0.36±0.09, Günlük Ağırlık Artışı (GAA) 4.7±1.25 g/gün ve Yem Çevirme Oranı (YÇO) ise 5.07 olarak belirlenmiştir. Sonuç olarak, mezgit balığının doğal stokların yapılandırılması ve canlı muhafaza gibi çeşitli maksatlar ile doğal ortamdan yakalanan mersin morinalarının kültür şartlarına adaptasyonlarında ve rutin beslenmesinde kullanılabileceği görülmüştür.
Turkish Journal of Fisheries and Aquatic Sciences, 2015
The effects of four concentrations of clove oil (150, 300, 450 and 600 mg L -1 ) as ananaesthetic... more The effects of four concentrations of clove oil (150, 300, 450 and 600 mg L -1 ) as ananaesthetic substance at three temperature levels (10, 15 and 20°C) and three fish size (as weight) groups (57.0±11.3, 103.0±11.9 and 457.0±89.8 g) on induction and recovery times in turbot (Psetta maxima) were investigated in this study. The fish were individually exposed to each clove oil bath in 10, 20 or 50L buckets with respect to fish size and were recovered in a 500-L tank with running seawater. Temperature, fish size and clove oil concentrations were found to have significant effects on induction and recovery times in turbot (P<0.01). Induction and recovery times were both less than half when the temperature was increased from 10 to 20°C (P<0.01). The duration to reach surgical anaesthesia and recovery times of small size turbot varied in relation to temperature, but were generally shorter than big size turbot (P<0.01). Overall, the increase of clove oil concentration from 150 to 6...
In this project, Rainbow trout’s (Oncorynchus mykiss, Walbaum 1792) differences on feeding and gr... more In this project, Rainbow trout’s (Oncorynchus mykiss, Walbaum 1792) differences on feeding and growing evaluations have been observed, by this way, preferable fish size during stocking to the sea cages and most profitable way of using during feeding season at limited temperatures and for obtaining desirable harvested fish weights, the initial fish weights and montly growing rates establishments have been aimed.
Introduction Bu çalýþmada karaca mersininin (Acipenser gueldenstaedtii Brandt, 1883) sperm kalite... more Introduction Bu çalýþmada karaca mersininin (Acipenser gueldenstaedtii Brandt, 1883) sperm kalitesi ve sulandýrmadan sonra sýcaklýðýn sperm hareketliliði ve yaþama süresine etkisi çalýþýlmýþtýr. Spermler, 0.5 μg/kg sulfagon enjeksiyonu yapýlan dört balýktan alýnmýþtýr. Sperm kalitesi belirlendikten sonra, tatlý su ile sulandýrýlarak farklý sýcaklýklarda (4-24°C) muhafaza edilmiþtir. Hareketliliðin, karaca mersin balýðýnýn yumurta inkübasyonu sýcaklýðýna en yakýn olan 14°C'de 28. dakikaya kadar devam ettiði ve canlýlýðýn %5 olduðu görülmüþtür. Sperm canlýlýðýnýn 14°C'de 8. dakikaya kadar %50'den fazla olduðu belirlenmiþtir. Bu nedenle karaca mersini spermi sulandýrýldýktan sonra 8. dakikaya kadar döllemede kullanýlabilir.
Karadeniz Bolgesi’nde su urunleri yetistiriciligi 1972 yilinda icsularda gokkusagi alabaligi ileb... more Karadeniz Bolgesi’nde su urunleri yetistiriciligi 1972 yilinda icsularda gokkusagi alabaligi ilebaslamistir. Bolgede 1990’li yillarda deniz kafeslerinde gokkusagi alabaligi, levrek ve cipurabuyutme isletmeleri faaliyete gecmistir. Son yillarda kalkan ve deniz alabaligi turleri sektoretanitilmistir. Bolge icin midye, eskina, mersin ve kefal baliklari potansiyel turler olarak gorulmektedir.Calismada, Karadeniz Bolgesi’ndeki ic sularda beton havuz ve kafeslerde alabalikyetistiren, deniz kafes sistemlerinde alabalik, levrek ve cipura baliklarini buyuten isletmelerinkurulus ve gelisimleri degerlendirilerek, bolgedeki su urunleri yetistiriciliginin tarihsel gelisimiirdelenmis ve gelecekteki uretim projeksiyonu yapilmistir. Bu calismada Tarim Bakanligi’ninilgili birimlerindeki kayitli bilgiler ve arazi calismalarindan elde edilen veriler kullanilmistir.Bolgede deniz kafeslerinde yaklasik 3 500 ton/yil alabalik ve 750 ton/yil levrek uretim kapasitesinesahip 10 isletme bulunmaktadir. Bolgede...
... PROJE NO: TAGEM/HAYSÜD-2001-07-01-04 Dr. Bilal AKBULUT (Proje Lideri) ... Mersin balıklarının... more ... PROJE NO: TAGEM/HAYSÜD-2001-07-01-04 Dr. Bilal AKBULUT (Proje Lideri) ... Mersin balıklarının yumurta bırakmak için girdiği Samsun ilinden Karadeniz&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#x27;e dökülen Kızılırmak ve Yeşilırmak üzerinde Altınkaya ve Derbent barajları (Kızılırmak) ile Hasan Uğurlu ve Suat ...
Turkish Journal of Fisheries and Aquatic Sciences, 2011
The efficacy of clove oil as an anaesthetic was evaluated in Juvenile of Russian sturgeon (Acipen... more The efficacy of clove oil as an anaesthetic was evaluated in Juvenile of Russian sturgeon (Acipenser gueldenstaedtii) under two experiments. Dose response examined using four anaesthetic concentrations varying from 0.22 to 0.90 g/L of clove oil and effect of exposure duration on the recovery time analysed for 5 and 10 min. Mean body length (cm), 24.9±1.37 and weight (g) 63.2±10.89, n=120, juvenile Russian sturgeon placed individually to the anaesthetic bath prepared with clove oil, and induction (I1: Sedation and I2: Loss of equilibrium) and recovery times (R1: Regain of equilibrium and R2: Sedation) recorded in seconds. Allowing fish remain in the anaesthesia after fish reaching anaesthesia stage, time to recovery from anaesthesia recorded. Fish exposed to clove oil failured to respond to external stimuli and reached to anaesthesia, sympocal stage in <3 min and recovered in <5 min at all doses except 0.22 g/L dose of clove oil. Exposure five and ten minute to anaesthesia at t...
... Original title, Ekonomik deniz urunleri arastirma projesi. Personal Authors, Genc, Y.,Zengin,... more ... Original title, Ekonomik deniz urunleri arastirma projesi. Personal Authors, Genc, Y.,Zengin, M.,Basar, S.,Tabak, I.,Ceylan, B.,Ciftci, Y.,Ustundag, C.,Akbulut, B.,Sahin, T.(Fisheries Central Research Inst., Trabzon (Turkey)). ... Contact: Ferhat OZBAS. Tel: +90 312 344 73 59. ...
Turkish Journal of Fisheries and Aquatic Sciences, 2020
In this study, spawning period, total fecundity, fertilization and hatching rates of wild and hat... more In this study, spawning period, total fecundity, fertilization and hatching rates of wild and hatchery-reared turbot, Psetta maxima, were investigated. Fish were spawned over a 3-month period, from April to June. Wild broodstock consisted of sixteen females with a mean weight of 3742±1509 g. Hatchery-reared broodstock consisted of seventeen females with a mean weight of 3604±1398 g. Mean total fecundity was 2.4±1.71x10 6 and 2.3±1.75x10 6 eggs per female for wild and hatchery-reared broodstock, respectively. Fertilization and hatching rates were 59.2±17.07% and 67.3±30.67% for wild and 67.1±18.87% and 61.3±30.85% for hatchery-reared broodstock. The reproductive parameters of wild and hatchery reared turbot showed no significant difference, which warrants further investigation of both in provision of a sustainable fishery.
In this research, milt collection and cryopreservation with different extenders in endangered Rus... more In this research, milt collection and cryopreservation with different extenders in endangered Russian sturgeon (Acipencer gueldenstaedtii) which lives Black Sea and its tributary rivers were studied. The semen was collected by abdominal massage. Sperm motility classified to five categories. Cooling were carried out as follow; 3°C/min between 0 and-4 and 5°C/min between-4 and-10. Sperm were frozen using 5 different extenders and with 8% DMSO as cyroprotectant at-196 °C in liquid nitrogen. Spermatocrite ratios range from 65% to 91%. Sperm pH was determined 8.0. After 24 hours the deep frozen sperm samples were thawed by quickly immersing them in a water bath at 32 ºC under constant shaking for about 2 min, and freshwater was added to stimulate the sperm motility. In ten minutes after activation, the velocity and motility of sperm were ++ and 20%. Our results indicate that E2 extender was better than the others and may useful extender for cryopreservation of sturgeon semen.
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Papers by Bilal Akbulut