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Eco-friendly Seafood at Princeton Why the big fuss? Misconception: For centuries, people have assumed that the vast size of the oceans and reproductive capacity of fish would protect fish and other marine creatures from overharvesting and extinction. In the last few decades, we’ve been shown time and time again how naïve we have been: 22% of commercial fisheries are over-exploited or depleted and another 44% are fully exploited, meaning that fishing communities and the general public are currently paying dearly for previous poor management in the form of lost jobs and significantly reduced catches. Commercial depletion: Even the cod of the Eastern US and Canada, which used to be abundant to the point that boatloads of Europeans sailed across the Atlantic to find the oceans so full that they could dip buckets in and pull them out full of fish, are now commercially extinct. Sometimes these effects are very hard to reverse: despite a great reduction of cod fishing effort, these once-super-abundant fish are still dangerously rare. With all their costly equipment, fishermen can’t catch depleted stocks, because they simply aren’t there. Ecosystem destruction: The depletion of fisheries has effects beyond just reduced catch and lost profits. Fishing gear can destroy habitat, accidental catch of non-targeted species threatens endangered species, and many commercial species play crucial roles in marine ecosystems. Overall, poorly managed fisheries drastically alter whole ecosystems, affecting people in numerous ways including through other fisheries. Social implications: Fishery conservation efforts are economically and socially beneficial. A well-managed, sustainable fishery that avoids over-fishing, habitat destruction, and accidental catch can provide stable jobs for the long term, while a poorly managed, unsustainable fishery is only temporarily expanded until its drastic collapse. The depleted resource often provides many jobs and much opportunity during the boom, but the bust often means economic devastation for entire regions: much of Atlantic Canada has been in economic depression ever since the cod fishery became depleted. Take-home message: Marine creatures are finite resources, and without careful management these resources will collapse with severe ecological, social, and economic ramifications. Despite a much better understanding of appropriate management, scientists agree that most fisheries are not managed sustainably, and are at risk of the same cycle of boom and bust seen with cod. Consumers can alter this situation by choosing eco-friendly seafood, thereby providing an incentive for appropriate management of fisheries. Large-scale consumers, such as Princeton University, have a special opportunity to significantly impact fisheries policies through their purchasing decisions. Dining Services would like to take a stand on this issue, and serve only eco-friendly seafood. However, in order to do so, they need your support. The Details The following is a quick summary of the seafood most frequently offered by Princeton University Dining Services. Using information provided by various environmental organizations, it ranks these products on a scale of red/avoid, yellow/caution, or green/recommended and explains these rankings. In general, the main reasons why any fish might be on yellow or red lists are: - overfished, depleted populations - habitat destruction by fishing gear, especially bottom trawling - accidental catch of other species or juveniles (“bycatch”) - environmentally costly farming practices such as raising carnivorous fish For the Audubon cards we're handing out, - green = "abundant, relatively well-managed species" - yellow = "significant concerns about a species' status, fishing methods, and/or management" - red = "a lot of problems - such as severe depletion, overfishing and poor management" The specifics for common Princeton Dining fish are: Shrimp Imported shrimp are on the red list because they have the worst bycatch of any fishery (3-15 pounds of bycatch per pound of shrimp!), including endangered sea turtle bycatch, and farm-raised shrimp from overseas have problems with habitat destruction. US farmed and wild shrimp are on the yellow list because they have less negative impact due to regulations like sea turtle escape devices in nets. California trap-caught and Atlantic northern pink shrimp are on the green list because they have the lowest bycatch. Princeton generally serves yellow- or red-list shrimp. Catfish Catfish are ideal for aquaculture because they're farmed in closed freshwater ponds on a mostly herbivorous diet (rather than environmentally costly fishmeal). This environmentally sustainable farming approach earns them their green listing. Salmon While Catfish and Tilapia provide the perfect example of good aquaculture, Salmon is the perfect example of bad aquaculture. Atlantic framed salmon are raised on an environmentally costly diet of fish meal (2.8 pounds of other fish for 1 pound of salmon means this fishery still exacts a considerable toll on marine ecosystems) in pens in the ocean, where they cause increased pollution, increased disease spread, and genetic deterioration due to escaped fish interbreeding in wild populations, which are so depleted that they are commercially extinct. Therefore, Atlantic salmon are on the red list. On the other hand, Pacific salmon are wild-caught from hatchery-supported stocks; the main threats to these populations are not fishery management but habitat degradation from logging, agriculture, and dams. Oregon and Washington salmon have a yellow or red listing and California salmon have a green or red listing depending on the source, while Alaskan salmon are invariable on green lists. (Note to the health-conscious: wild-caught salmon are less fatty than farmed salmon.) Scallops The environmental damage associated with dredging wild-caught scallops and uncertainty about the environmental impact of some farmed-raised scallops have resulted in their placement on red and yellow lists, depending on the source. However, Atlantic net-farmed scallops are on the green list because raising scallops that suspension feed plankton in the ocean and harvesting them with nondestructive methods has little environmental impact. Princeton generally serves yellow-list scallops. Tilapia Like catfish, Tilapia are raised on farms inland on an herbivorous diet, a very environmentally friendly approach that results in their green listing. Cod Atlantic cod is the classic example of overfishing; severely depleted populations and habitat damage due to bottom trawling give this fish its red listing. Pacific cod are on the yellow or green list, depending on the source; they are harvested at a more sustainable level but are still associated with habitat damage. Princeton serves red-list cod. Tuna Due to extreme overfishing, bluefin tuna is on the red list. Yellowfin, bigeye, albacore, and especially skipjack tuna have healthier populations. Though now dolphin-safe, tuna caught with purse seine nets incur heavy fish bycatch, and tuna caught with longlines have endangered sea turtle bycatch. Therefore, albacore, yellowfin, skipjack, and bigeye tuna caught by longlines or purseseine nets are on the yellow list, while those caught by trolls or pole, which have much less bycatch, are on the green list. Sushi tuna may be bluefin or ahi, which applies to both bigeye and yellowfin. Canned tuna can be albacore ("white tuna"), yellowfin or skipjack ("chunk lite"). Princeton serves yellow-list tuna. Sources for the above and more information on these or other species are available from: Monterey Bay Aquarium: http://www.mbayaq.org/cr/seafoodwatch.asp Audubon: http://www.audubon.org/campaign/lo/seafood/ Environmental Defense: http://www.environmentaldefense.org/tool_pop.cfm?tool=seafood National Resources Defense Council: http://www.nrdc.org/wildlife/fish/gwhichfi.asp Seafood Choices Alliance: http://www.seafoodchoices.com/seasense/index.shtml Feel free to contact Marissa ([email protected]) with any questions.