New index helps identify 55 unprotected marine protected areas

A new Paper Park Index (PPI) developed by researchers at the University of British Columbia's Sea Around Us initiative helped identify 55 marine protected areas (MPAs) across the world where enough fishing takes place to ...

Sea sponges need oxygen, as fish and people do

The inconspicuous sea sponges are Earth's oldest multicellular animals and have filtered the oceans for nearly 900 million years, long before the first plants appeared on land. New research appearing in the journal Fishery ...

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 ...

What really makes fish become sexually active

Discounting anthropogenic-induced changes, the seasonally oscillating environments where long-lived fish hatch and grow remain more or less the same throughout the course of their lives. This means that the common explanation ...

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