Overfishing & overpopulation: Too many fishers chasing too few fish?
By Julia Mason, Nereus Program fellow at Stanford University
There’s a tendency among conservation scientists to attribute the world’s environmental crises to the growing global population. Fisheries science is no exception—the issue of overfishing is often condensed to one of “too many fishers chasing too few fish,” leading to inevitable fisheries declines.
Adaptation strategies to climate change in marine systems
Climate change and human activity have pressing impacts on the state of our ocean, threatening the integrity of marine ecosystems themselves as well as the services they provide to human communities. Given the inevitable current and future effects of climate change, adaptation by both physical and human systems is crucial.
Who is eating who? How climate change is modifying predator prey interactions
Climate change is expected to have many impacts on the oceans; one of them is where fish are located in the ocean. Ocean warming is expected to cause fish to shift to different locations that are cooler — generally toward the poles and into deeper waters. But not all fish are moving in the same directions and at the same speeds. This is changing what fish are eating and who are eating them.
How polluted your tuna is depends on where it comes from
By Colin Thackray, Nereus Fellow at Harvard University
It’s fairly common knowledge that tuna is high in methylmercury, a neurotoxin that bioaccumulates in marine food webs. This means that methylmercury magnifies further up the food web – tuna eat smaller fish that eat even smaller fish or plankton — all of which could contain the contaminant.
Researching mangroves and fishing livelihoods in Cambodia
Nereus Fellow, Rachel Seary, a PhD Student at the University of Cambridge and the United Nations Environment World Conservation Monitoring Centre, has just returned from Cambodia, where she conducted a month long fieldwork period aimed at understanding the links between mangroves and fishing community livelihoods.
One small bay in Japan has been attracting marine scientists from around the world for more than 100 years
By Robert Blasiak, Nereus Program Fellow at Stockholm University
Let’s turn the clock back 113 years. The prominent German zoologist Franz Doflein is about to embark on a two-year journey with the dream of becoming one of the first scientists to study the marine flora and fauna of the deep-sea trenches off the coast of Japan. Reports that the Japanese and Russian empires have just declared war on each other are troubling, yet months of preparation cannot be abandoned, and in the summer of 1904, he boards the Prince Heinrich, a steamship bound for East Asia.