Study finds vulnerability in pelagic ecosystems

Fish and sharks living in the open ocean are impacted more by human pressure than their seabed-dwelling counterparts, according to a new study from The University of Western Australia.

Fewer fish, worse health: The climate effect

Over the next 25 years, reduced intake of marine food resources due to climate change will likely have a negative impact on the cardiovascular health of First Nations on Canada's Pacific coast, a new study suggests.

A lightweight fish pen to move farms to deeper seas

The University of Queensland has co-led a project to design a cost effective yet robust pen to expand fish farming into deeper ocean areas to help feed the growing global population. The research is published in the Journal ...

Climate change found to be reducing fish weight

Fish weight in the western North Pacific Ocean dipped in the 2010s due to warmer water limiting food supplies, according to a new study at the University of Tokyo. The work appears in Fish and Fisheries.

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Fish

Tetrapods

A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish).

Food prepared from fish is also called fish, and it is an important food source for humans. They are harvested either from wild fisheries (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). They are also exploited by recreational fishers and fishkeepers, and are exhibited in public aquaria. Fish have had a role in many cultures through the ages, ranging from deities and religious symbols to the subjects of books and popular movies.

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