Prof. Dr. Yusuf Bozkurt, who graduated from Ankara University with a Certificate of Honour, also received his MSc and Ph.D. degrees from the same university. Furthermore, he empowered his academic background by studying in different universities and institutions abroad. He has a strong background in the field of reproductive biology and biotechnology, with an emphasis on cryoconservation. His current academic research focuses on the conservation of aquatic genetic resources.
Aquaculture can be defined as the controlled production of aquatic organisms such as fish, crustaceans, mollusks, algae, and other organisms. Today, aquaculture is not only the fastest-growing industry but also the only way to supply safe and sustainable seafood production. However, the aquaculture industry needs novel technologies, which may provide solutions to increase sustainable and profitable aquaculture production. Aquaculture Industry – Recent Advances and Applications holds different aspects of aquaculture and includes seven chapters that have been written by experts in their research fields.
Go to the bookPart of the book: Current Frontiers in Cryopreservation
The main aim of this study is to determine the effect of the straw volume (0.25 vs. 0.5 mL) on Nile tilapia sperm quality after cryopreservation. Sperm was frozen according to conventional slow freezing procedure and diluted at ratio of 1:3 with ionic extender containing 350 mM glucose and 30 mM Tris containing 10% dimethylacetamide. Diluted semen was equilibrated at 4°C for 10 min and drawn into 0.25-mL or 0.5-mL plastic straws and sealed with polyvinyl alcohol. Samples were frozen 3 cm above of the liquid nitrogen surface and exposed to the liquid nitrogen vapor (≈−140°C) for 10 min. After this, frozen sperm cells were kept into the liquid nitrogen container (−196°C). The frozen sperm in different volume of straws were thawed in a water bath at 30°C for 20 s (0.25-mL straws) or at 30°C for 30 s (0.5-mL straws), respectively. Fertilization was conducted using 1 ×105 spermatozoa/egg ratio with each straw type. The findings of the present study indicated that cryopreservation of sperm in glucose-Tris–based extender using 0.5-mL straws improved post-thaw progressive motility, duration of progressive motility, and fertilization results (P<0.01). On the other hand, differences in term of post-thaw cell viability was not significant among the treatments (P>0.01). In conclusion, our results suggest that Nile tilapia sperm can be successfully cryopreserved in Tris-based extenders supplemented with glucose containing 10% dimethylacetamide in 0.5-mL straws.
Part of the book: Cryopreservation in Eukaryotes
Aquatic plants are beneficial and a necessary part of lakes and reservoirs. Also, some kind of plants are the main food source for aquatic animals. Plants are able to stabilize sediments, improve water clarity and add diversity to the shallow areas of lakes. On the other hand, overgrown plants can become a nuisance by hindering human uses of water and threaten the structure and function of diverse native aquatic ecosystems. This chapter aims to make analysis of using of grass carp to control aquatic vegetation. In this concept, origin and distribution, biological features, reproduction, feeding behaviour and effects of grass carp on aquatic plants, water body and sediments are also discussed.
Part of the book: Grasses
Part of the book: Cryopreservation Biotechnology in Biomedical and Biological Sciences
Part of the book: Biological Research in Aquatic Science
Part of the book: Zebrafish in Biomedical Research
Part of the book: Animal Reproduction
Sturgeons are one of the most valuable fish species in the world due to their pleasant meat, famous black caviar, and isinglass. Sturgeons are believed to be among primitive groups of vertebrates in the world and have been described as “living fossils”. It is assumed that they have been living in the natural waters of the northern hemisphere of the world for 200 million years. Their natural populations are now highly endangered because of overfishing for their black caviar and delicate flesh, destruction of spawning habitat, pollution of freshwater, and human-constructed barriers to access spawning migration. Nowadays, living populations have little chance of survival without stock enhancement and sustainable conservation programs. This review document presents general features of current restoration programs and describes how stock enhancement and conservation strategies can be used to recover Eurasian-based sturgeon resources in peril.
Part of the book: Aquaculture Industry
Part of the book: Aquaculture Industry