**3. Threats due to human activities**

Human activities represent a big threat to words marine mammals. These activities comprise "Bycatch" in marine media, collision with vessels, reduction of prey resources, and climatic changes on the planet. The danger of water pollution, excessive hunting or fish harvesting, diseases, and habitat destroying or degradation and loss.

For the following reasons, marine mammals represent a complex problem and challenges for conservation:


Bycatch could be a complex, global issue that threatens the sustainability and resiliency of our fishing communities, economies, and ocean ecosystems. Bycatch of protected species, like sea turtles and marine mammals, remains a big threat to recovering dwindling populations [2, 3].

Global data on marine mammal bycatch is mostly lacking, particularly speciesspecific data. For these reasons, marine mammals present an array of issues and challenges for conservation and management.

Bycatch could be a complex, global issue that threatens the sustainability and resiliency of our fishing communities, economies, and ocean ecosystems. Bycatch of protected species, like sea turtles and marine mammals, remains a big threat to recovering dwindling populations.
