Page 120 - How to Be a Conscious Eater - Making Food Choices That Are Good for You
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Health of fish populations. In measuring the health of a fish stock,
                    what counts as “enough”? It generally means the population
                    can repopulate itself. That means not fishing faster than it
                    takes for that to occur, as often happens with commercial fish-
                    ing practices under business as usual.
                       Who gets to decide? That’s where responsible fisheries
                    management comes in, with management agencies setting
                    official catch limits to put fishermen in a given area on clear
                    notice and equal footing. Given the scale of the overfishing
                    that has already happened, the extent of the oversight needed
                    varies by location and species. Some species that are depleted
                    but not completely wiped out simply need time to recover, and
                    for that, we have Marine Protected Areas. You can think of
                    them like state or national parks. They’re designed to lure fish
                    into propagation mode, so the full ecosystem can rejuvenate.
                    Surely the place that gets the gold star for responsible fisheries
                    management is Alaska’s Bristol Bay. The approach there is rig-
                    orous, the waters are pristine, the habitats are healthy, and the
                    salmon stocks are at record highs.

                    Type of fishing gear used. Industrial fishing boats use imprecise
                    gear—gillnets, longlines, bottom trawls—that drag up all kinds
                    of life other than their target catch, from sharks to sea tur-
                    tles, and even innocent birds flocking around the boats that get
                    caught in the tangle. That’s because some of these contraptions
                    can span fifty miles. Bottom trawling, along with giant metal
                    baskets called dredges, drag not only through the water but
                    along the bottom of the ocean floor. That sweeps up creatures
                    it shouldn’t, like clear-cutting a forest, while also disrupting
                    habitat—coral reefs, sponges, and the homes and food sources
                    for marine life who live there. This method is also about three
                    times as damaging as non-trawling in terms of greenhouse
                    gas emissions. Using traps and pots to catch prawns instead,



                                  Stuff That comes from animals  109





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