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Articles on Fish

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UV absorbents and industrial antioxidants can reach aquatic environments through the degradation of plastics, or via wastewater treatment plant effluents. (Environment and Climate Change Canada)

Contaminants of emerging concern, found in sunscreens and plastics, end up in the St. Lawrence River

UV absorbents and industrial antioxidants are used in many household goods to protect them from UV radiation. They can have an adverse impact on ecosystems.
The round goby is an invasive fish that has become established in the St. Lawrence River over the past two decades, following its introduction into the Great Lakes. (Cristina Charette)

St. Lawrence River zones that are hostile to invasive species can be refuges for native fish

Wetlands can help limit the spread of the voracious round goby, an invasive species that has infiltrated the Great Lakes and has become widespread in the St. Lawrence River.
A great hammerhead shark’s two eyes can be 3 feet apart on opposite sides of its skull. Ken Kiefer 2/Image Source via Getty Images

Why do hammerhead sharks have hammer-shaped heads?

The first hammerhead shark was likely the result of a genetic deformity. A biologist explains how shark DNA reveals hammerheads’ history.
The World Trade Organization reached an agreement on fisheries subsidies, prohibiting member countries from funding illegal fishing and fishing of overexploited stocks at the 12th WTO Ministerial Conference in Geneva on June 17. (Fabrice Coffrini/Pool Photo/Keystone via AP)

We have a deal. Can we now talk about some not-so-harmful fisheries subsidies?

There is a need for nuanced discussions around the role of fisheries subsidies — even those that may be nominally harmful — to avoid further inequity and marginalization of small-scale fishers.
Smaller animals that feed lower in the food web might be at greater risk from microplastic exposure than larger ones. (Shutterstock)

Microplastics may pose a greater threat to the base of marine food webs

We need to advance our understanding of the effects of microplastics on aquatic ecosystems, especially on small animals at the base of food webs that might be ingesting more of these particles.
Tourism-driven development is threatening one of Puerto Rico’s greatest draws: its rural coastlines. R9 Studios FL/Flickr

Coastal gentrification in Puerto Rico is displacing people and damaging mangroves and wetlands

Puerto Rico’s tourism industry is booming as nations lift COVID-19 travel restrictions, but development is displacing people who have lived along its coastlines for years.
In some global fishing communities, women influence decisions, resulting in stronger claims to area-based fishing rights, improved economic returns and greater women’s empowerment. (Shutterstock)

For more equitable and sustainable fisheries, women must be empowered to lead

Creating opportunities to meaningfully engage women in governance and decision-making is necessary to achieve gender equality in small-scale fisheries.

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