Threatened aquatic species

Nature

Aquatic animals, such as fish and amphibians, are continuously in contact with water. They cannot avoid pollutants in the water, which are taken up through the skin, gills and food.

Background

Many older sewage facilities cannot break down certain chemicals and hormones in pharmaceuticals, perfumes and other synthetic substances entering the wastewater stream. These can cause mutations in the reproductive cells, threatening some species of frogs and fish with extinction.

Incidence

Threatened aquatic species are a significant global concern, with approximately 40% of all fish species and 30% of freshwater species classified as threatened or near threatened according to the International Union for Conservation of Nature (IUCN). The decline is particularly pronounced in freshwater ecosystems, where habitat loss, pollution, and overfishing have led to alarming rates of species extinction. Regions such as Southeast Asia and the Amazon Basin are hotspots for biodiversity loss, with many endemic species facing imminent threats.
A notable example of this issue occurred in 2019 when the IUCN reported that the vaquita, a small porpoise native to the Gulf of California, Mexico, was on the brink of extinction, with fewer than 30 individuals remaining. The primary threat to the vaquita is entanglement in illegal gillnets used for fishing another endangered species, the totoaba. Conservation efforts have been implemented, but the situation remains critical as the species continues to face significant risks from human activities.

Claim

Threatened aquatic species represent a critical crisis that demands immediate attention. These species are vital to maintaining the health of our ecosystems, supporting biodiversity, and sustaining human livelihoods. Their decline signals a broader environmental collapse, threatening food security and water quality. Ignoring this issue jeopardizes not only marine life but also the future of our planet. We must act decisively to protect these species, ensuring a balanced ecosystem for generations to come. The time for action is now!

Counter-claim

While some may argue that threatened aquatic species are a pressing issue, I contend that this concern is overstated. The ocean is vast, and nature has a remarkable ability to adapt. Focusing on these species diverts attention and resources from more pressing human issues, such as poverty and education. Instead of fixating on aquatic life, we should prioritize immediate human needs and economic growth, which ultimately benefits all forms of life on Earth.