全球智库信息集成服务系统(G2TT): Influence of European sculpin, Cottus gobio, on Atlantic salmon Salmo salar, recruitment and the effect of gravel size on egg predation - Implications for spawning habitat restoration.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1111/j.1365-2400.2009.00705.x
	Influence of European sculpin, Cottus gobio, on Atlantic salmon Salmo salar, recruitment and the effect of gravel size on egg predation - Implications for spawning habitat restoration.
	Palm D; Lindberg M; Braennaes E; Lundqvist H; Oestergren J; Carlsson U
发表日期	2009
出处	Fisheries Management and Ecology 16 (6): 501-507
出版年	2009
语种	英语
摘要	The study examined if recruitment of juvenile Atlantic salmon, 'Salmo salar' L., was influenced by the presence of European sculpin, 'Cottus gobio' L., and if the spawning substrate size used by salmon influences sculpin predation on salmon eggs. A combination of information on spawning site selection by female salmon and associated densities of juvenile salmon indicated that recruitment of juvenile salmon was 10 times lower in areas where sculpin was present than areas without sculpin. Predation rate on salmon eggs was found to be dependent on substrate size in artificial redds created in stream aquaria using four different sizes of substrate (13, 23, 37 and 62 mm). Predation rate averaged 83% in the aquaria with the largest substrate size, whereas a rate of only 2-3% was observed using smaller substrate sizes. Sculpin may thus be an important factor influencing the recruitment of juvenile salmon. Selecting small enough gravel sizes during restoration of salmon spawning habitat could therefore be important to minimize egg predation.
主题	Evolution and Ecology (EEP) ; Postdoctoral Scholars (PDS)
关键词	Competition Predation Restoration
URL	http://pure.iiasa.ac.at/id/eprint/8800/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/128944
推荐引用方式 GB/T 7714	Palm D,Lindberg M,Braennaes E,et al. Influence of European sculpin, Cottus gobio, on Atlantic salmon Salmo salar, recruitment and the effect of gravel size on egg predation - Implications for spawning habitat restoration.. 2009.