Muhammed Atamanalp

By Muhammed Atamanalp, Arzu Ucar and Gonca Alak

The developing technological infrastructure has accelerated the evolution of nanoscience and encouraged the use of nanomaterials in very large areas. However, environmental liberation of nanomaterials can pose potential risks. Although different toxicity screening methodologies have been successfully used to assess the potential risks of these substances, little is known about their environmental impact. Fish are the most visible members of the aquatic ecosystem, vulnerable to toxicants. Although the ecotoxicology of fish and nanoparticles are complex, this review evaluates approaches to using catfish as a bio-indicator for the effects of nanoparticles on fish.

Part of the book: Catfish

By Nuray Karaca, Erdi Aksakal, Cengiz Kılıc, Arzu Uçar, Veysel Parlak, Muhammed Atamanalp and Gonca Alak

Global environmental problems have led societies to seek more sustainable production and consumption methods in every social field. Although the food sector has contributed significantly to global environmental issues, there has been little interest in terms of research. Family businesses have an important share and contribution in the world economy. With this definition, this study was conducted on family-run enterprises in aquaculture in Erzurum and its districts. Our aim is to demonstrate that the success of family business enterprises in ensuring continuity can be used as a method to prevent migration in rural agricultural areas. Study has been underlined that aquaculture farmers continue their family businesses because their work satisfies them economically, but it is not possible to create continuity in this type of business without state support in unfavorable economic conditions.

Part of the book: Emerging Trends in Fisheries

By Özden Fakıoğlu and Muhammed Atamanalp

Glacial lakes are lakes located in areas with extreme natural conditions, generally far from anthropogenic effects, and covered with ice for most of the year. In addition to the effects of environmental factors on the phytoplankton composition of lakes, as in natural lakes, the duration of ice cover and the location of the lakes are also influential. Recent studies have shown that glacial lakes, which are generally considered to have an oligotrophic status, are undergoing eutrophication, which has shifted their ecological status to the mesotrophic level. Furthermore, increases in both nutrient levels (total phosphorous, total nitrogen, total organic carbon, etc.) and Cyanobacteria species diversity and biomass in these lakes support this observation. The research in this chapter is based on the following hypotheses: (1) There are changes in the nutrients of glacial lake water, and this is due to the change in ice cover durations as a result of global warming; (2) These lakes are affected by the terrestrial biodiversity in their respective locations; and (3) These areas have been opened to activities such as agriculture and tourism, and human-induced pollutants are exerting pressure on these lakes. The aim of this study is to reveal the changes in the ecological status of glacial lakes, from Antarctica to high-altitude mountain lakes, as a result of changes in both nutrient concentrations and phytoplankton biodiversity and biomass. It also aims to reveal the effects of global warming and anthropogenic pollutants by analyzing the changes that occur in glacial lakes.

Part of the book: Limnology - Surface and Ground Water Ecosystems [Working title]