Tourism is a multi-faced activity that links the economic, social and environmental components of sustainability. This research analyzes rural residents’ perceptions of the impact of tourism development and examines the factors that influence the support for sustainable tourism development in the region of Nord-Vest in Romania. Residents’ perceptions towards tourism development were measured using 22 items, while their support for tourism development was determined using 8 items. Descriptive and inferential statistics were used to analyze the data. Principal component analysis grouped the first 22 variables into 4 factors, and the following 8 variables into 2 factors (sustainable development, destination development). Findings indicate that residents see tourism as a development factor. The natural, economic, and social-cultural environment as well as infrastructure, age, gender and education are factors that influence the sustainable development of tourism.

This narrative review evaluates the multi-scalar ecotoxicological capacity of the guppy (Poecilia reticulata) as an integrative model organism for monitoring endocrine-disrupting chemicals and establishing sustainable water-quality assessment protocols. By virtue of its distinct biological attributes, including vivid sexual dimorphism, viviparous reproduction, and a thoroughly mapped behavioral repertoire, this teleost species uniquely bridges the interpretive gap between sub-organismal molecular changes and broad individual reproductive fitness. The synthesized evidence demonstrates that diverse contaminant classes, ranging from legacy steroidal estrogens and antiandrogenic pesticides to industrial organotins and emerging per- and polyfluoroalkyl substances (PFAS), provoke mechanism-specific toxicities that disrupt hepatic vitellogenin production and neuroendocrine brain aromatase pathways. These physiological initiating events directly propagate into diminished sperm motility, degraded secondary sexual ornamentation, altered courtship tactics, and distorted population sex ratios. Furthermore, this review addresses the applied utility of P. reticulata bioassays in measuring the net ecological hazards of complex industrial wastewaters and chemical mixtures. Ultimately, the work situates the guppy within modernized, tiered environmental monitoring frameworks that pair targeted chemical profiling with animal-sparing New Approach Methodologies (NAMs), thereby reinforcing resource-efficient and ethically sustainable strategies for protective global water management.