Hydrobiological Research

Aquatic Biotechnology Sustainability and Innovative Solutions

Mehmet Reşit Taysı, Muammer KIRICI — Wed, 24 Jan 2024 00:00:00 +0300

Aquatic biotechnology plays a pivotal role in addressing the pressing sustainability challenges facing our planet's aquatic ecosystems. This abstract explores innovative solutions and their potential to enhance sustainability in this critical field. In recent years, aquatic environments have faced unprecedented threats, including pollution, overfishing, habitat degradation, and climate change. These challenges have spurred the development of novel biotechnological approaches aimed at conserving aquatic biodiversity and promoting sustainable resource management. One of the key areas of innovation in aquatic biotechnology is the development of aquaculture techniques that reduce environmental impacts while increasing food production. Sustainable aquaculture practices involve the use of genetically modified organisms (GMOs) to enhance disease resistance, improve feed efficiency, and reduce the environmental footprint of fish farming. Additionally, biotechnology plays a crucial role in restoring damaged aquatic ecosystems through techniques such as bioremediation and habitat restoration. Furthermore, advancements in genetic research and molecular biology have enabled scientists to better understand aquatic organisms' physiology, behavior, and adaptation mechanisms. This knowledge is instrumental in developing strategies to mitigate the effects of climate change on aquatic ecosystems, such as breeding programs for heat-tolerant and disease-resistant species. In conclusion, aquatic biotechnology offers promising and sustainable solutions to address the complex challenges facing our aquatic environments. By harnessing the power of innovation in this field, we can promote the conservation of biodiversity, responsible resource management, and the long-term health of our planet's aquatic ecosystems.

Determination of the effect of marjoram and rhinoceros on UV damage in bacteria using microbiological and molecular techniques

Şükrü ÖNALAN, Ekin Özköseoğlu, İsmail IŞIK — Wed, 24 Jan 2024 00:00:00 +0300

Nowadays, UV lights are a substance that has gained a place in many areas even if it is used in different conditions and jobs. At the same time, in today's technology, many technological products have been preferred with the use of UV at different intensities in terms of sterilization and cleaning. Chief among these are environmental sterilizers, and in laboratory areas, they are used for purposes such as environmental sterilizers, DNA imaging, sterile cabinets and PCR cabinets. In addition, its damages are also high. It can cause skin and skin cancers, as well as causing blindness in contact with the eyes. With this project, plant extracts, which are known to have many effects, were examined in this aspect in order to prevent possible damage from UV light. For this purpose, E. coli bacteria was chosen. Marjoram and rhinoceros extracts were obtained to positively affect UV application. Extracts were added to grown bacteria in broth and exposed to UV for 1 and 6 hours and compared with UV-damaged bacteria without added extract. The results were investigated by Real-Time PCR analysis of DNA and universal bacterial primers and re-isolation of bacteria in the medium. The results of the study showed that the morphological character of the bacteria used was same of E. coli’s morphological character. E. coli bacteria were grown in LB medium and were observed to grow in both solid and liquid media. The marjoram and rhinoceros extracts used in the study were obtained by the methanol method. Bacteria cultivated in liquid medium in 2.0 ml centrifuge tubes were divided into different groups and exposed to UV for 1 and 6 hours. No bacterial growth was observed in any group after 6 hours of UV. However, positive binding was observed in PCR. While there was no improvement in the medium in the 1-hour UV groups, the highest copy number was observed in the marjoram group compared to the control group in the PCR image. In light of these results, it was observed that the amount of amplifiable bacterial DNA in marjoram extract was higher than the control group. As a result, it was observed that marjoram extract absorbed UV at a higher rate than rhino herb. It has been shown that it can be fully effective if the UV exposure time is reduced.

Mortality and Treatment of Electric Blue Jack Dempsey (Rocio octofasciatum) and Blood Red Parrot Cichlid Fish in Planarian Infestation

Şükrü ÖNALAN, Ahmet Sepil — Wed, 24 Jan 2024 00:00:00 +0300

Aquarium fisheries is an important sector in aquaculture, which is carried out for economic and hobby purposes. Diseases, particularly parasitic infestations, represent a significant economic challenge in this sector. Parasitic infestations have an important place in aquarium fish. Planarians are flatworms that can live in both freshwater and marine waters, appearing in many shapes and forms. In this study, mortality and treatment due to Planaria infestation in electric blue Jack Dempsey (Rocio octofasciata) and blood red parrot cichlid fish were investigated. In a freshwater aquarium with a 400 liter capacity, housing of 13 fish with an average length of 12 ± 0.1 cm and a weight of 50 ± 1 g, the infestation of Planaria occured due to overfeeding and equipment contamination, resulting in a mortality rate of 60%. For the treatment of morphologically identified Planaria species, it was observed that the mortality was reduced and the development of the parasite stopped with the use of 3 mL/100 L FMC (Formalin-Methylene-Malachite) suspension. As a result of the study, it was seen that the water temperature was increased to 31^oC after removing the infested fish from the aquarium in Planaria infestation and disinfection of contaminated tools and equipment after FMC (3.7 g / 3.7 g / L) application could get rid of the infestation.