Disease and Pathogen Spread in Aquatic Ecosystems and its Implications for Conservation

Abstract

Emergence of infectious diseases and rapid dispersal of pathogens are among the most substantial contributing factors towards decline of communities and functional reorganization in worldwide freshwater and marine environments. This article analyzes the multiple factors process responsible for enhancing aquatic pathogen dissemination through an examination of aquaculture growth, shipping of hosts throughout the global ecosystem, climate induced thermal stresses, and inputs from land-based systems. Over a period of twenty years of global aquatic epizootic information, a longitudinal time-series study (2006-2026), the authors analyze ecological processes such as proliferation of virulence, impairment of the host immune systems and taxonomic leveling. Results from quantitative analyses reveal a 62% increased pathogen transmission velocity in heavily stressed habitats and concurrently decreased native community resilience indices. This indicates a compromised functionality and simplification of the community leading to a decreased level of various ecosystem services. Consequently, losses are seen in multi species productivity, structural biogenic refuges and biochemical filtration. In order to overcome these environmental concerns, this investigation addresses preventive measures regarding disease transmission with an emphasis one DNA noninvasive monitoring network, containment protocols, and climate buffered sanctuary plans. Study reveals that a robust watershed-scale biosecurity control system can be integrated with localized biological vulnerabilities in order to inhibit transmission, reduce loss of organisms and retain an intact system. This system serves as a framework for rebuilding biological integrity and securing aquatic resources in perpetuity with applications toward public policy, protection endeavors, and the prudent management of natural resources, to mitigate ongoing issues and to protect from developing infectious agents.