Sat, Jun 08, 2024 page2

• Fish stocks declining, Greenpeace says

  • By Wu Po-hsuan and Jason Pan / Staff reporters
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  Stock of 24 common fish species around Taiwan are declining due to overfishing, while the average size of the fish in catches is shrinking, Greenpeace said on Thursday as it announced the results of its “fish census” at a news conference in Taipei.

  The study — which assessed fresh catches at harbors and markets across Taiwan — showed that the nation’s marine resources are in urgent need of protection, Greenpeace said.

  Its staff collaborated with National Kaohsiung University of Science and Technology aquaculture researcher Ho Hsuan-ching (何宣慶) to conduct the study, which focused on 40 common fish species as they were offloaded or put on sale, Greenpeace project manager Lee Yu-tong (李于彤) said.

  

  Fish are displayed for sale at a market in Taiwan in an undated photograph.

  Photo courtesy of Greenpeace Taiwan

  The study showed a large decline in the proportion of mature fish in catches, indicating a serious overfishing problem for all 24 species, Lee said.

  “Most of the 24 species are fish commonly consumed by Taiwanese, including greater amberjack, dory, Japanese jack mackerel, silver pomfret, red tilefish and black croaker,” she said.

  “The study showed that over-fishing has placed a lot of stress on the species so that they are unable to sustain their populations,” she said.

  In the long term, Taiwan’s main economic fish stocks would decline and the average fish size would shrink, harming the livelihoods of local communities, she said, adding that “it would be a lose-lose situation for fishers and the marine ecosystem.”

  The study was conducted from March last year to January at Donggang (東港) in Pingtung County, Cianjhen (前鎮) and Keziliao (蚵仔寮) in Kaohsiung, Magong (馬公) in Penghu County, and Dashi (大溪) and Nanfangao (南方澳) in Yilan County.

  About 30,000 samples were measured, Lee said.

  The data showed that for five species — silver pomfret, greater amberjack, black croaker, javelin grunte and silver grunt — more than 90 percent of the fish measured were under their respective lengths at maturity, Ho said.

  It was the first widely conducted fish census for Taiwan, he said.

  “The results showed a high proportion of immature, small fishes, which is the same issue fishers around the world are facing,” he said. “If we can sound the alarm early, maybe can come up with a strategy to make changes.”

  “When fish stocks are depleted, seafood prices will rise,” Ho said. “If we continue with the ways we catch and consume fish, all of the species will be eaten into extinction.”

  Shao Kuang-chao (邵廣昭), an honorary fellow at Academia Sinica’s Biodiversity Research Center, said that lawmakers have approved a draft marine conservation act, but it has been delayed for years at the legislature.

  The legislation would allow government agencies to plan for and delineate protected marine areas and impose fines of up to NT$500,000 for those who ignore them, Shao said.

  There are many ways to conserve marine resources, but setting up protected areas and properly enforcing them is the simplest, most economical and most effective approach, he added.
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