What are the problems that are facing by the fishes in rivers and seas?

Fishes in rivers and seas face numerous problems, including habitat loss due to pollution, overfishing, and climate change, which alters water temperatures and salinity levels. Additionally, invasive species can disrupt local ecosystems and compete for resources. Plastic waste and other contaminants further threaten their health and survival. These challenges collectively jeopardize fish populations and the biodiversity of aquatic ecosystems.