Understanding why fish grow the way they do and getting serious about it

Understanding why fish grow the way they do and getting serious about it

Understanding why fish grow the way they do and getting serious about it

Fish gills. Image by 2427999, Pixabay.

The distribution and concentration of dissolved oxygen and water temperature in the oceans and freshwaters are usually far more influential in shaping the growth and reproduction of fish than the distribution of their prey.

In a new paper in Science Advances, Daniel Pauly, principal investigator of the Sea Around Us initiative at UBC’s Institute for the Oceans and Fisheries, argues that scientists need to avoid attaching human attributes to fish and start looking at their unique biology and constraints through a different lens.

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Treating fish as a public health asset can strengthen food security in lower income countries

Treating fish as a public health asset can strengthen food security in lower-income countries

Treating fish as a public health asset can strengthen food security in lower income countries

Fishing in Ada Foah, Ghana. Photo by jrwebbe, Flickr.

The food and nutrient security of billions of people worldwide depend on fish being treated as a domestic public health asset instead of a commodity.

A new paper by researchers with the Sea Around Us – Indian Ocean initiative at the University of Western Australia and the Sea Around Us global initiative at the University of British Columbia reviews evidence to back the urgent need to develop health- and nutrition-focused fisheries policies that drift away from current export-oriented, profit-maximizing policies.

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Popular seafood species in sharp decline around the world

Popular seafood species in sharp decline around the world

Popular seafood species in sharp decline around the world

Octopus at a fish market in Indonesia. Photo by Deng Palomares.

Fish market favourites such as orange roughy, common octopus and pink conch are among the species of fish and invertebrates in rapid decline around the world, according to new research.

In the first study of its kind, researchers from the Sea Around Us initiative at UBC, the GEOMAR Helmholtz Centre for Ocean Research Kiel and the University of Western Australia assessed the biomass —the weight of a given population in the water— of more than 1,300 fish and invertebrate populations. They discovered global declines, some severe, of many popularly consumed species.

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COVID-19 and Brexit can help with the recovery of UK fish stocks

COVID-19 and Brexit can help with the recovery of UK fish stocks

Fishing boats in Brixham harbour, UK. Photo by Dave_S, Flickr.

The United Kingdom has a unique opportunity to start rebuilding its fish stocks by taking advantage of the slowdown in commercial fishing caused by the COVID-19 pandemic and ongoing Brexit negotiations that should lead to new policy and legislation.

A new paper by researchers with the University of Southampton, the GEOMAR Helmholtz Centre for Ocean Research and the Sea Around Us initiative at the University of British Columbia presents a science-based pathway for decision-makers to develop a holistic approach in fisheries management by harnessing the present moment in which threatened stocks are seeing fishing pressure reduced to levels not seen since World War II.

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