The removal of a check dam from the Shei-pa National Park in 2011 has led to a dramatic increase in the population of the critically endangered Formosan landlocked salmon, a professor said yesterday.
The number of salmon has grown from fewer than 500 in 2001 to 5,400 this year, said National Chung Hsing University professor Lin Hsing-juh (林幸助), who started a 10-year project in 2004 with 20 other academics to monitor and research the fish.
The 15m by 3m Check Dam No. 1 of the Chichiawan Creek, one of 10 built on the river to reduce channel erosion and prevent sediment from filling a downstream reservoir, was torn down in May 2011.
The research team found that the dam left the fish vulnerable to big storms. When the creek was hit by a typhoon or flooding, the salmon would be flushed from their natural habitat in the creek’s upper reaches to points downstream, Lin said.
The cold-water fish would try to migrate upstream, but were prevented by the dam, leaving them to die in the warmer water of the creek’s lower reaches, Lin said.
During each major storm, one-third of the Formosan landlocked salmon in the region perished, he said.
The current salmon population has nearly reached the creek’s maximum capacity of 5,800 salmon, Lin said, but he added that the species is threatened by pollution caused by the production of high-mountain vegetables, fruit and tea grown nearby on Wuling Farm (武陵農場).
Nitrates in the fertilizers found in washed off soil pollute the creek and prevent the salmon from breathing, he said.
The species, a holdover from the last Ice Age, needs unpolluted waters to survive and is now found only in the country’s Cijiawan Creek (七家灣溪) and Gaoshan Creek (高山溪) in the upper reaches of the Dajia River (大甲溪).
Death row inmate Huang Lin-kai (黃麟凱), who was convicted for the double murder of his former girlfriend and her mother, is to be executed at the Taipei Detention Center tonight, the Ministry of Justice announced. Huang, who was a military conscript at the time, was convicted for the rape and murder of his ex-girlfriend, surnamed Wang (王), and the murder of her mother, after breaking into their home on Oct. 1, 2013. Prosecutors cited anger over the breakup and a dispute about money as the motives behind the double homicide. This is the first time that Minister of Justice Cheng Ming-chien (鄭銘謙) has
Ferry operators are planning to provide a total of 1,429 journeys between Taiwan proper and its offshore islands to meet increased travel demand during the upcoming Lunar New Year holiday, the Maritime and Port Bureau said yesterday. The available number of ferry journeys on eight routes from Saturday next week to Feb. 2 is expected to meet a maximum transport capacity of 289,414 passengers, the bureau said in a news release. Meanwhile, a total of 396 journeys on the "small three links," which are direct ferries connecting Taiwan's Kinmen and Lienchiang counties with China's Fujian Province, are also being planned to accommodate
BITTERLY COLD: The inauguration ceremony for US president-elect Donald Trump has been moved indoors due to cold weather, with the new venue lacking capacity A delegation of cross-party lawmakers from Taiwan, led by Legislative Speaker Han Kuo-yu (韓國瑜), for the inauguration of US president-elect Donald Trump, would not be able to attend the ceremony, as it is being moved indoors due to forecasts of intense cold weather in Washington tomorrow. The inauguration ceremony for Trump and US vice president-elect JD Vance is to be held inside the Capitol Rotunda, which has a capacity of about 2,000 people. A person familiar with the issue yesterday said although the outdoor inauguration ceremony has been relocated, Taiwan’s legislative delegation has decided to head off to Washington as scheduled. The delegation
TRANSPORT CONVENIENCE: The new ticket gates would accept a variety of mobile payment methods, and buses would be installed with QR code readers for ease of use New ticketing gates for the Taipei metro system are expected to begin service in October, allowing users to swipe with cellphones and select credit cards partnered with Taipei Rapid Transit Corp (TRTC), the company said on Tuesday. TRTC said its gates in use are experiencing difficulty due to their age, as they were first installed in 2007. Maintenance is increasingly expensive and challenging as the manufacturing of components is halted or becoming harder to find, the company said. Currently, the gates only accept EasyCard, iPass and electronic icash tickets, or one-time-use tickets purchased at kiosks, the company said. Since 2023, the company said it
RSS