Chapter Posidonia oceanica monitoring system on the coast of Aegean Sea of Turkey

Seagrass monitoring is a basic tool for measuring the condition of meadows in parallel to the environmental conditions. Posidonia oceanica meadows are very sensitive to anthropogenic effects. In the present study, two monitoring stations of Posidonia oceanica meadows were established on the Aegean coasts of Turkey in the years 2018 and 2019, at 26 m depth in Ildır Bay (İzmir, Turkey), and at 33 m depth in Kara Ada (İzmir, Turkey). The P. oceanica meadows upper and lower limits were defined by balisage systems. In the laboratory, lepidochronological, morphometric, and phenological parameters were also studied

Chapter The pressures and the ecological quality status of the Marmara Sea (Turkey) by using marine macroalgae and angiosperms

In the present study, the Marine Floristic Ecological Index (MARFEI) was tested to assess the impacts by using marine benthic macrophytes and pressures by using the Macroalgae-Land Uses Simplified Index (MA-LUSI) in the Marmara Sea (Turkey). Sampling of benthic macrophytes was made from 0-5 m depth at 29 different sites during the summer periods of 2017, 2018 and 2019. The study revealed good ecological status class (ESC) for 6 sites, moderate for 11 sites, poor for 8 sites and bad for 4 sites. MARFEIeqr showed a negative linear relationship with the pressure index MA-LUSI

Chapter Posidonia oceanica monitoring system on the coast of Aegean Sea of Turkey

Seagrass monitoring is a basic tool for measuring the condition of meadows in parallel to the environmental conditions. Posidonia oceanica meadows are very sensitive to anthropogenic effects. In the present study, two monitoring stations of Posidonia oceanica meadows were established on the Aegean coasts of Turkey in the years 2018 and 2019, at 26 m depth in Ildır Bay (İzmir, Turkey), and at 33 m depth in Kara Ada (İzmir, Turkey). The P. oceanica meadows upper and lower limits were defined by balisage systems. In the laboratory, lepidochronological, morphometric, and phenological parameters were also studied

Effects of laparoscopic sleeve gastrectomy on trace elements in morbid obesity

Objective: The relationship between obesity and trace elements and possible alterations of trace elements after bariatric surgery is a complex issue. The aim of our study was to determine the level of serum trace elements in morbidly obese patients who had undergone laparoscopic sleeve gastrectomy (LSG). Materials and methods: The individuals in our study were divided into two groups: Morbidly obese patients who had undergone LSG (n = 30) and a healthy control group (n = 30). Serum zinc (Zn), copper (Cu), selenium (Se), iron (Fe), and magnesium (Mg) levels and biochemical parameters were analyzed pre-operatively and post-operatively at months 1 and 12 in both groups. Results: Serum Zn levels in the 1st and 12th post-operative months were lower than before the surgery. Patients with morbid obesity had higher serum Cu levels than controls, whereas post-operative serum Cu levels at months 1 and 12 were lower than they had been in the morbidly obese group before surgery. Serum Se and Fe levels of the morbid obesity group were lower than those of the control group, also serum Se levels at post-operative months 1 and 12 were higher than before surgery. The post-operative serum Fe level at 12 months was higher than before surgery, and post-operative serum Mg levels at 1 and 12 months were higher than before surgery. Blood glucose, insulin, total cholesterol, low-density lipoprotein (LDL), and triglyceride levels were decreased, and albumin, total protein, and high-density lipoprotein (HDL) levels were increased after LSG. Conclusion: In conclusion, we determined the alterations in the levels of trace elements and biochemical parameters in obesity following LSG surgery. Our findings suggest that LSG may have an important role in trace element metabolism and biochemical parameters associated with metabolic diseases in obesity

Chapter The pressures and the ecological quality status of the Marmara Sea (Turkey) by using marine macroalgae and angiosperms

In the present study, the Marine Floristic Ecological Index (MARFEI) was tested to assess the impacts by using marine benthic macrophytes and pressures by using the Macroalgae-Land Uses Simplified Index (MA-LUSI) in the Marmara Sea (Turkey). Sampling of benthic macrophytes was made from 0-5 m depth at 29 different sites during the summer periods of 2017, 2018 and 2019. The study revealed good ecological status class (ESC) for 6 sites, moderate for 11 sites, poor for 8 sites and bad for 4 sites. MARFEIeqr showed a negative linear relationship with the pressure index MA-LUSI