The study was conducted in Karasu Stream (Sinop Province, Black Sea Region of Turkey). The purpose of this study is, to determine the benthic macroinvertebrate composition of the stream, together with some of its environmental characteristics (water temperature, pH and dissolved oxygen) to evaluate the trophic level of the stream. Samplings of benthic macroinvertebrates and environmental variables were performed monthly at ten stations between February 2013 and January 2014. As a result, 18260 specimens were investigated and 175 taxa were determined. Chironomidae and Oligochaeta were the higher groups in terms of species richness with 48 and 38 taxa, respectively. The BMWP and ASPT indices indicate that all the stations belong to “slightly polluted (Class II)” or “unpolluted (Class I)” water quality levels.

This study investigates the taxon composition, seasonal variations, and diversity dynamics of macroinvertebrate communities associated with Mytilus galloprovincialis cultivated in mussel longline systems in the central Black Sea. Monthly sampling conducted between September 2023 and August 2024 yielded a total of 99,719 individuals representing 20 taxa. The communities were predominantly dominated by amphipods, particularly Jassa marmorata (71%) and Stenothoe monoculoides (28%). Individual abundance peaked in autumn, whereas taxon richness reached its highest levels in summer. ANOVA results revealed significant seasonal differences in diversity indices (p < 0.05). Multivariate analyses, including NMDS and RDA (PCA proxy), indicated distinct seasonal clustering, with pH (41%) and salinity (35 g/kg) identified as the primary environmental drivers of community composition. These findings demonstrate that offshore mussel longline systems function not only as aquaculture infrastructure but also as reef-like artificial habitats that support benthic diversity. The dominance of opportunistic and detritivorous amphipods, along with their sensitivity to environmental gradients, suggests their potential utility as bioindicators for ecological monitoring.

Çevre, canlıların yaşamları boyunca karşılıklı etkileşim içinde bulundukları ve birbirlerinden etkilendikleri dinamik bir sistemdir. Günümüzde çevre sorunları, ulusal ve uluslararası düzeyde giderek artan biçimde tartışılmakta; bu durum medyada çevreye ilişkin haberlerin sayısında ve çeşitliliğinde belirgin bir artışa yol açmaktadır. Bununla birlikte her gün ulusal ve uluslararası medyaya pek çok olumlu ve olumsuz haber yansımakta bilinçli bireylerce bu haberler irdelenmekte ve tartışılmaktadır. Bu çalışmada, 2018–2022 yılları arasında ulusal basında yer alan çevre temalı haberler incelenmiş ve haber metinleri, metin madenciliğine dayalı kelime bulutu analizi yöntemiyle değerlendirilmiştir. Ulusal medyaya yansıyan çevre sorunları ile ilgili haberler Google arama motorlarunda taranmış ve kelime bulutu ile analiz edilmiştir. Analiz sonucuna göre olumsuz haberlerde en çok tekrar edilen kelimeler “su, hava, plastik, kirlilik, orman, maske, eldiven”; olumlu haberlerde “atık, çevre, dönüşüm, elektrik, iklim, tarım, depozito” kelimeleri öne çıkmıştır.

The increasing global environmental pollution, rising energy consumption, and global warming, which are important problems worldwide, have led countries to seek different solutions in environmental issues. Türkiye and other countries are making efforts to continue living in a healthier environment economically and socially while meeting the increasing energy demand and rising environmental pollution. Renewable technologies are being developed and produced. Therefore, sustainable ecology and sustainable green economy have started to take the top spot on the global agenda. For this reason, the use of microalgae in environmental applications is increasing rapidly, and microalgae technology is being rapidly developed. Photobioreactors are currently at the forefront of microalgae production. Accordingly, microalgae are being used in many different areas of biotechnological and technical applications, such as health, food, cosmetics, pharmaceutical production, wastewater treatment, heavy metal removal from the environment, and animal feed. In addition, the production of biofuels based on microalgae is also attracting attention. Therefore, microalgae are creating potential alternatives to coal, petroleum, and natural gas. In this sense, it seems inevitable that microalgae will be one of the main energy sources in the future, and a green revolution will take place with the development of microalgae technology. This study aims to reflect the current situation of algae and microalgae used and that can be used in biotechnology, along with new applications and necessary considerations in Türkiye, as well as in the world.