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The estimated lowest Lm was 11.8 cm (Lmax-based), 12.8 cm (TL vs. GSI), and 13.7 cm (logistic model) for Thryssa setirostris and highest Lm was 23.3, 20.5, and 22.0 cm for Priacanthus macracanthus through Lmax, TL vs. GSI, and logistic-based models, respectively. From these three models, the lowest mean value of Lm was obtained for T. setirostris (12.7 cm) and highest was recorded for P. macracanthus (21.9 cm). Fifty percent of mature marine species was in 14.9 cm TL and 90% species was in 19.5 cm TL. The smallest Lopt was obtained as 13.4 cm TL for T. setirostris and largest was 28.2 cm TL for P. macracanthus. This study was generated data on Lm and Lopt for 10 newly marine species, which are globally absent. Therefore, this study will be helpful for developing sustainable management strategies and conservation of marine fishes through the implementation of mesh size based on the size at sexual maturity (Lm) and optimum catchable length (Lopt).Nanomaterials of different sizes and diameters are frequently used in various industrial areas, due to the rapid development of nanotechnology. Hence, it leads to toxic effects on the environment and non-target organisms, and adverse effects such as oxidative stress and membrane damage in cells and tissues are occurred. Some biomarkers such as the accumulation of intermediate products, detoxification of the immune system, or xenobiotic are used in the detection of toxic effects of exogenous substances in living organisms. find more In this study, the effects on catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), and glutathione-s-transferase (GST) enzyme activities to determine the toxic effects of TiO2 NPs on antioxidant defense system, acetylcholinesterase (AChE) activity to determine their neurotoxic effects, and total hemocyte count (THC) to determine their effect on the immune system were investigated in model organism Galleria mellonella larvae. It was determined that major amounts of Ti were mostly eliminated through the Malpighian tubules. Moreover, TiO2 NPs in different concentrations caused the formation of reactive oxygen species in G. mellonella and lead to an increase in antioxidant enzymes. Decreases were found in THC due to the TiO2 NP application. As a result, it was concluded that TiO2 NPs caused accumulation in tissues of the model organism G. mellonella, resulting in oxidative stress and has adverse effects on the immune system.In this paper, a cyanide-free electroplating bath containing glutamate as a complexing agent is investigated as an environment-friendly alternative for copper plating on zinc die-cast alloys. Glutamate reacts with copper in an aqueous solution that exhibits similar copper cyanide properties by forming complexes. The electroplating bath pH is chosen from equilibrium diagrams to avoid the formation of insoluble complexes and oxides at varying copper-to-glutamate molar ratio. The plating bath's electrochemical response on a stationary electrode confirms that a 13 molar ratio between copper and glutamate at pH 8 exhibits better copper deposition onto the substrate, with its morphology characterized using SEM. The results suggest that the copper glutamate electroplating bath can be suitable for copper cyanide bath replacement without additives, allowing a one-step electroplating process. Moreover, the polarization and electrochemical impedance measurements suggest inhibition of the substrate's corrosion when copper was electroplated at a 13 copper-to-glutamate molar ratio. With the careful control of the concentration ratio, the process can provide adequate copper deposition and anti-corrosion capability suitable for green nanocoating applications.Greenhouse gas (GHG) emissions from aquaculture have gained widespread attention. However, the effect of phosphorus (P) and potassium (K) on GHG emissions from aquaculture systems has rarely been studied. In this study, we conducted a laboratory-scale experiment to investigate the effect of P and K addition on CH4 and N2O emissions and nutrient use efficiency in a rice-fish co-culture system. The results showed that the CH4 flux rate did not differ between the rice-fish co-culture (RF) and fish monoculture (F) systems. Phosphorus addition did not affect CH4 emission from the RF. In contrast, K addition significantly increased the CH4 emission from the RF by 148.4%. Dual P and K addition greatly increased the CH4 emission from the RF by six times, indicating an interactive effect of P and K on the stimulation of CH4 emission. Phosphorus addition strengthened the restorative effect of the RF on N2O emission, while K addition weakened the restorative effect of the RF on N2O emission. The combination of P and K did not affect the N2O emission from the RF. The application of P and K strengthened the restorative effect of rice on nitrogen (N) pollution in aquaculture water. Phosphorus and K addition significantly increased the rice biomass and nutrient in the harvested rice, but did not affect the fish biomass and nutrient in the harvested fish. Dual P and K addition increased the nutrient use efficiency in the rice-fish system. These results provide a reference for adjusting nutrient management to reduce GHG emissions and improve nutrient use efficiency in the rice-fish system.Ecosystem services (ESs) are a diverse range of environmental properties that have significant effects on both landscape characteristics and human well-being, an understanding of the spatial variation of which is required for effective ecosystem management and conservation. In this study, we aimed to identify the geographical variation in ESs and examine the factors impacting ESs in Punjab Province, Pakistan. We evaluated ecosystem service intensity (ESI) by using the benefit transfer method and investigated the spatial heterogeneity of ESIs at the tehsil level by using an exploratory spatial data analysis (ESDA) model and semivariance analysis. This analysis indicated that spatial distribution of ESI shows significant and optimal spatial heterogeneity of ESs, revealing several hot and cold spots for ESI transformation in the study area. The ESI decreased from east to west and north to south, with a trough in the metropolitan zones, including Lahore, Sheikhupura, Faisalabad, and Multan, which was in accordance with the land use/cover pattern.