Ciona intestinalis environmental control points: field and laboratory investigations

doi:10.3391/ai.2011.6.4.13

	Ciona intestinalis environmental control points: field and laboratory investigations
	Vercaemer, Benedikte 1; Sephton, Dawn 1; Nicolas, Jean M.2; Howes, Stephanie 1; Keays, Joanne 3
刊名	AQUATIC INVASIONS
	2011-12
卷号	6 期号:4 页码:477-490
关键词	vase tunicate larval recruitment survival growth rate environmental conditions aquaculture
ISSN号	1798-6540
DOI	10.3391/ai.2011.6.4.13
英文摘要	Life history processes, such as reproduction, survival and growth, are known to be strongly affected in ascidians by different types of environmental factors including temperature and salinity. In a field study conducted from 2005 to 2009 in southern Nova Scotia, an area affected by invasions of Ciona intestinalis, low winter and high summer temperatures were shown to be strongly associated with intra- and inter-annual variation in larval recruitment. No clear patterns of association were seen with other environmental variables such as chlorophyll and indices of nutrient concentrations. In a 12 week challenge experiment in the laboratory, survival and growth of juvenile C. intestinalis were affected by both salinity and temperature. Individuals exposed to high temperature (25 degrees C) and low salinity (20) did not survive the sustained exposure. In addition, Individual Specific Growth Rates were shown to decrease as salinity decreased. Temperature and salinity are factors which will subsequently influence distribution, persistence and potential for spread of adult populations. New favourable temperature and salinity conditions (e.g., potentially resulting from global climate change) will likely alter the distribution patterns of C. intestinalis. Conversely, infestation management techniques or site selection could benefit from unfavourable sustained temperature and salinity conditions.
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	REGIONAL EURO-ASIAN BIOLOGICAL INVASIONS CENTRE-REABIC
WOS记录号	WOS:000306277600013
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/4173]
专题	自然资源部第一海洋研究所
作者单位	1.Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A, Canada; 2.Nova Scotia Power Inc, Halifax, NS B3T 1M9, Canada; 3.Canadian Coast Guard, Maritime Serv, Dartmouth, NS B2Y 2G2, Canada
推荐引用方式 GB/T 7714	Vercaemer, Benedikte,Sephton, Dawn,Nicolas, Jean M.,et al. Ciona intestinalis environmental control points: field and laboratory investigations[J]. AQUATIC INVASIONS,2011,6(4):477-490.
APA	Vercaemer, Benedikte,Sephton, Dawn,Nicolas, Jean M.,Howes, Stephanie,&Keays, Joanne.(2011).Ciona intestinalis environmental control points: field and laboratory investigations.AQUATIC INVASIONS,6(4),477-490.
MLA	Vercaemer, Benedikte,et al."Ciona intestinalis environmental control points: field and laboratory investigations".AQUATIC INVASIONS 6.4(2011):477-490.