GEOG 410 Lecture Notes - Lecture 3: Yellowfin Tuna, Tropical Eastern Pacific, Dolphin Safe Label

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Chapter 13 explores the issues surrounding the history of tuna, including overharvesting and bycatch. Tuna are particularly known for the issues related to dolphin bycatch, the consumer boycott of tuna, a(cid:374)d the e(cid:448)e(cid:374)tual (cid:862)dolphi(cid:374) safe(cid:863) la(cid:271)els that (cid:374)o(cid:449) appea(cid:396) o(cid:374) the (cid:448)ast (cid:373)ajo(cid:396)it(cid:455) of tu(cid:374)a p(cid:396)odu(cid:272)ts. This chapter will address the advantages and disadvantages of green consumerism, the political economy of the tuna industry, and the ethics of marine species and ecosystem management. Blood tuna: annual catches for some species of tuna number in billions of pounds per year. Seasonal migrations of some species are 4,000+ (cid:373)iles, (cid:373)aki(cid:374)g tu(cid:374)a a (cid:272)o(cid:373)pli(cid:272)ated fish to (cid:862)(cid:373)a(cid:374)age(cid:863) effe(cid:272)ti(cid:448)el(cid:455). As its popularity as a component of sashimi exploded, demand for bluefin increased very rapidly and techniques for harvesting them were made much more efficient. The result of such heavy harvesting has been massive overfishing of the bluefin: over time, fishers have developed more sophisticated techniques to maximize their catch sizes (and profitability).

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