Data confirm link between respiratory stress and fish reproduction
A consistent metabolic ratio found across 133 Chinese marine and freshwater fish species provides new evidence in support of the idea that fish become sexually active – and spawn for the first time – in response to growth-induced respiratory stress.
Estimating the biomass of commercially exploited fisheries stocks left in the ocean
This new Fisheries Centre Research Report (FCRR) presents the key results of a multi-year activity of the Sea Around Us devoted to assessing the status of marine fisheries globally.
Nearly 300 scientists ask the WTO to ban harmful fisheries subsidies
The researchers feel the WTO could use their upcoming meeting to sign an agreement that forbids such harmful practices, while allowing for small-scale, sustainably managed wild fisheries.
What really makes fish become sexually active
“What I think really makes fish spawn for the first time is the increasing oxygen stress that growing fish experience,” Daniel Pauly said
Dr. Daniel Pauly’s extraordinary life and work revealed in new book
Dr. Daniel Pauly is the world’s most-cited fisheries scientist, but life for the UBC professor has been far from easy. Now, readers can learn more in his biography, The Ocean’s Whistleblower.
High cod catches could have been sustained in Eastern Canada for decades, simple stock assessment method shows
The assessment model demonstrated that if Canadian authorities had allowed for the rebuilding of the stock of northern Atlantic cod off Newfoundland and Labrador in the 1980s, annual catches of about 200,000 tonnes could have been sustained.
As fishing effort grows, catches decline in the Mozambique Channel region
Researchers found that effective small-scale fishing effort in the entire Mozambique Channel region grew slowly but steadily from around 386,000 kWdays in 1950 to around 23 million kWdays by 2016, with Mozambique and Madagascar dominating the upward trend.
Tilapias are not precocious, they are just resilient
Tilapias living in crowded aquaculture ponds or small freshwater reservoirs adapt so well to these stressful environments that they stop growing and reproduce at a smaller size than their stress-free counterparts.
Updating Sea Around Us‘ 1950-2010 marine catch reconstructions to 2018
The two volumes cover all maritime countries and island territories of the world.
FCRR: Marine and Freshwater Miscellanea III
Third collection of articles, authored or co-authored by Daniel Pauly.