Effects of Shallow Hydrothermal Vent Plumes on Zooplankton Ecology and Recruitment in Turtle Island, Taiwan

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Project title

Code/計畫編號

NSC97-2611-M019-004

Translated Name/計畫中文名

龜山島海底熱泉湧出及擴散對此海域浮游動物生態及補添量之機制研究

Project Coordinator/計畫主持人

Jiang-Shiou Hwang

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=1679111

Year

2008

Start date/計畫起

01-08-2008

Expected Completion/計畫迄

31-07-2009

Bugetid/研究經費

862千元

ResearchField/研究領域

海洋科學
生物科學

"本研究將探討台灣東北海域龜山島海底熱泉湧出及擴散對此海域浮游動物與熱泉生物生態及補添量之機制，本研究擬結合海洋生物學與生物海洋學之知識來分析龜山島日以繼夜終年的熱泉湧出對浮游動物（包括holoplankton 和meroplankton）歧異度、含量和分佈之影響。本研究主要著重在龜山島淺海熱泉噴口之海洋物理傳輸過程對浮游動物所形成的影響以及浮游動物之生態毒理學的耐受性研究。若狀況許可我們將以海底幫浦抽取垂直剖面離熱泉1，5，10 米距離之活體熱泉浮游動物及幼體以瞭解浮游動物之垂直剖面的時空變化及生態毒理學的耐受性研究。同時我們也將以同樣的方法進行水平抽取離熱泉數十至數百公尺遠的浮游動物活體以作為研究。採樣時間擬從 2007 年8 月到2010 年7 月。我們臆測熱泉浮游動物幼體靠近海底熱泉區的豐度會比遠離熱泉區的要高很多。由於熱泉生物生殖期之不同可能會產生時空上之明顯的變化，因為熱泉生物之繁衍可能與其浮游幼期之輸送機制有關，本研究將增加我們對熱泉生物相之生殖及輸送形式有更進一步的瞭解，本研究亦將涵蓋野外採樣分析與研究室實驗同時並行。研究結果將使我們對海底熱泉湧出及擴散對此海域浮游動物與熱泉生物生態及補添量之機制有更進一步的瞭解。" "meroplankton - will be studied near shallow water hydrothermal vents at Turtle Island, off the northeast coast of Taiwan (west Pacific), in order to investigate how physical transport processes and and the ecotoxicological tolerance and particularly behavior of plankton may interact. We will characterize vertical and lateral distributions and temporal variation of plankton and larvae of vent species using high-volume pumps that are reported to recover plankton in good condition and in high numbers. Pumps at heights of 1, 5, 10m above the seafloor and the surface and were positioned directly above and at 10s to 100s of meters away from vent communities. Sampling will be conducted at different spatial and temporal scales from August 2007 to July 2010. Larval abundances are expected to be considerably higher on-vents than away from them. Lateral abundance patterns are not expected to vary since hydrodynamic processes may be transporting diverse species in similar ways. However, the species-level differences in temporal patterns indicate that there is substantial discontinuity in the abundance of individual species at vent communities, possibly due to the timing of spawning and/or behavioral interactions with flow. This analysis will provide evidence of a potential bottle-neck situation for plankton above vent sites that will also influence larval dispersal from, and supply to, vent populations. The intended study will improve our understanding of reproductive and dispersal patterns of hydrothermal vent fauna since besides facilitated field surveys the shallow vent site allows for experimental approaches."

Keyword(s)

海底熱泉
熱泉噴口
西太平洋
浮游動物
浮游生物的擴散
短暫浮游期生物
Hydrothermal vent
Vent plumes
West Pacific
Mesozooplankton
Planktonic dispersal
Meroplankton

DSpace CRIS

Effects of Shallow Hydrothermal Vent Plumes on Zooplankton Ecology and Recruitment in Turtle Island, Taiwan

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