The Impacts of the Operation Noise from Offshore Wind Farm on the Hearing and Physiology of Local Croakers (Family: Sciaenidae, Teleost)(II)

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Project title

Code/計畫編號

MOST108-2621-M019-002-MY3

Translated Name/計畫中文名

離岸風力發電廠運轉噪音對當地石首魚類聽覺及生理的影響(II)

Project Coordinator/計畫主持人

Yi-Ta Shao

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Institute of Marine Biology

Website

https://www.grb.gov.tw/search/planDetail?id=13333824

Year

2020

Start date/計畫起

01-08-2020

Expected Completion/計畫迄

31-07-2021

Bugetid/研究經費

1272千元

ResearchField/研究領域

自然生態保育

海洋噪音(船舶航行、震測、聲納、探油及風機等) 對海洋生物多樣性的影響是近年來國際海洋保育最受關注的課題之一。我國為了要達成碳自主排放的目標，同時顧及未來的能源供給以及廢核政策，目前政府正在西海岸積極推動離岸風力綠能發電的計畫。然而，風力發電帶來的水下噪音可能影響魚類的群聚、族群或是個體的生理狀態。目前已知離岸風力發電廠興建時，打樁所造成的強烈噪音可引起近距離魚類的失聰、急性緊迫甚至死亡。相對於此，風機商轉時的持續性小音壓運轉噪音，對於生物的長期生理影響則尚無定論。在申請人近期發表的報告中，發現長時間暴露在持續性運轉噪音會導致虱目魚(Chanos chanos)與黑鯛(Acanthopagrus schlegelii)慢性的生理緊迫。此外，離岸風力發電的噪音也可能對魚類的行為造成影響，尤其是仰賴聲音溝通的魚類。緊鄰台灣西部重要河川出水口的這塊海域，是石首魚類的重要產卵場所，但也是潛力風場的規劃場所，因此有必要去了解發電噪音對這些魚種的影響。本計畫將以當地最常見的鱗鰭叫姑魚(Johnius distinctus)與大頭白姑魚(Pennahia macrocophalus)，以及由養殖取得的大黃魚(Larimichthys crocea)等石首魚為實驗對象，研究長期暴露在不同強度的風力發電運轉噪音對這些魚類聽覺能力的改變，及生理的潛在緊迫反應。並利用行為實驗測量足以干擾這些魚類種內溝通的噪音強度。藉此，預期將預估風力發電噪音對當地重要魚種的影響範圍區間。本研究的結果將提供於未來離岸風力發電廠設立時環評及減輕對策的重要參考資料。 The impacts of anthropogenic underwater noises, i.e. seismic survey, sonar, commercial shipping and offshore wind farms (OWF), on marine biodiversity is an emerging international issue in marine conservation. In Taiwan, in order to minimize carbon dioxide emissions and secure energy supply in the nuclear-free future, a large scale of offshore wind farm (OWF) development program will be launched in the west coast. However, artificial noises from OWF may disturb fish assemblage, population or their physiological condition. So far, it is evident that strong underwater acoustic noise from piling during construction period that may cause hearing loss, actual stress or death in teleosts. On the other hand, the long-term physiological effects of relatively quiet but continuous wind turbine running sound during operation period on fish were less understood. Our recent published papers demonstrated that the exposure to the wind turbine noise were able to induce chronic stress on both pelagic (milkfish, Chanos chanos) and benthic fishes (black porgy, Acanthopagrus schlegelii). Furthermore, OWF noise may influence fish behaviour as well, especially those vocal species. The areas nearby the estuary of main rivers over the west coast are important breeding sites of Sciaenidae, which is well known for making calls during mating. Hence, it is necessary to understand the possible effects of OWF noise on those species, before the wind farm installed. In the following project, two common local Sciaenidae species, distinctus croaker (Johnius distinctus) and big-head pennah croaker (Pennahia macrocophalus), as well as large yellow croaker (Larimichthys crocea), a native aquaculture species will be used. This study aimed to investigate the long term impacts of different levels of continuous wind turbine noise on Sciaenidae hearing ability, and how chronic stress influenced hearing thresholds. Moreover, by means of behaviour experiment, the study will show the critical level of noise that may jam or block Sciaenidae intra-species sound communication. Throughout the study, we aimed to estimate the zones of OWF operation noise influence, which will be irreplaceable information for future environmental regulation, and will benefit to the sustainable fisheries.

Keyword(s)

風力發電
水下噪音
聽覺
魚類
windpower
underwater noise
fish

DSpace CRIS

The Impacts of the Operation Noise from Offshore Wind Farm on the Hearing and Physiology of Local Croakers (Family: Sciaenidae, Teleost)(II)

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