He specializes in bycatch (the stuff that most commercial fishermen toss back, such as Bearded Brotula and Almaco Jacks).

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Conducted by bottom trawling, it results in more than eighty per cent bycatch, and countless plants and corals have been uprooted and dumped overboard.

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The bycatch, unwanted fish and other ocean life thrown back into the sea, can amount to as much as 90% of a trawl's total catch.

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In addition, says the report, sharks are threatened by high levels of bycatch and by destruction of bays and estuaries that are important nursery grounds for their young.

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My paintings and installations are mostly about the bycatch of human activity and the race for technological progress in combination with the human error that surrounds this progress.

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Like the other forms of industrial fishing, longlines, some of which submerge thousands of hooks in the water, yield immense quantities of bycatch, or unwanted fish, most of which is severely injured or dead.

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Humans pose much more of a threat to sharks than the reverse: 17% of more than 1000 assessed shark species are threatened by fishing and bycatch, according to the Red List of the International Union for the Conservation of Nature.

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Bycatch is a particularly thorny issue.

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Many sharks perish as bycatch, but increasingly they are being hunted for their fins, a delicacy in China and a lucrative commodity. (The annual export of fins is thought to be worth about a billion dollars.) One study, published in Ecology Letters last year, estimates that between twenty-six million and seventy-three million sharks are killed for their fins every year.

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