New Zealand Fishing Boats

Overfishing and climate change impacts on New Zealand’s fish populations were hidden – until now

New Zealand Fishing Boats

New Zealand fishing boats. Photo by QFSE Media, Wikimedia Commons.

Pelagic-oceanic fish commonly caught in warmer waters, such as skipjack tuna and blue mackerel, have been increasing in New Zealand’s waters since the 1950s, while cold-water species such as southern bluefin tuna display strong reductions in overall catch from the 1970s onwards, new research has found.

Continue reading

Dead Fish Washed Ashore during Golden Alga Toxic Bloom

Large fish more vulnerable to climate change-induced fish kills

Dead Fish Washed Ashore during Golden Alga Toxic Bloom

Reference image of dead fish washed ashore during a golden algae toxic bloom. Photo by Michael Hooper, USGS.

Climate change-induced droughts and fish kills affect larger fish more severely than smaller individuals, according to new research.

In a paper published in Environmental Biology of Fishes, researchers from Leiden University, Sportvisserij Zuidwest Nederland and the Sea Around Us initiative at the University of British Columbia compared evidence from drought-induced fish kills in the Netherlands, fisheries management literature and multiple physiological studies. They confirmed that when water gets warmer and deoxygenated, larger and older individuals within a species tend to die in greater numbers than their smaller and younger counterparts.

Continue reading

Africa Museum in Tervuren

International FishBase and SeaLifeBase Symposium – 2023

Africa Museum in Tervuren

Africa Museum in Tervuren. Photo by Jean Housen, Wikimedia Commons.

The Sea Around Us partner, FishBase, is the largest global information system on fishes. It provides encyclopaedical information on all described fishes and includes many tools for scientists in a large array of ichthyological disciplines. With about 700,000 visits per month, it is the most successful database on any group of living organisms.

SeaLifeBase complements the success of FishBase and has become an important platform for information on non-fish marine organisms.

Continue reading