Arid
DOI10.3391/mbi.2018.9.3.10
The efficacy of killing developing common carp embryos with electricity: using a laboratory evaluation to assess a potential means of reducing the recruitment of an invasive fish
Simpson, William G.1; Peterson, Douglas P.1; Steinke, Kurt1; Beck, Linda2,3
通讯作者Simpson, William G.
来源期刊MANAGEMENT OF BIOLOGICAL INVASIONS
ISSN1989-8649
出版年2018
卷号9期号:3页码:279-290
英文摘要

Concern about electrofishing inadvertently harming the embryos of species of conservation concern has motivated much of the research that describes what electrical conditions can kill fish embryos. As a result, targeted electrofishing might be underutilized as a potential control method to reduce the recruitment of nuisance fishes like common carp (Cyprinus carpio), one of the most widely distributed invasive fish in North America. We evaluate the efficacy of using electricity to reduce common carp recruitment by examining embryonic survival while manipulating the transfer of electric power to developing carp embryos. Embryos were shocked in water from a carp-occupied area (ambient conductivity 127 mu S/cm) using a variety of voltage gradient and waveform treatments common to commercial electrofishing units and generators. Survival of electroshocked common carp embryos was <= 50% at power densities (12,700 mu W/cm(3)) and voltage gradients (10 V/cm) that failed to cause significant mortality in other cyprinid species; however, embryonic resistance to electroshock was first noted at almost 3 d after fertilization (survival <= 50% at 79,375 mu W/cm(3)). Power transfer theory was used to explore optimal water conductivities for the deployment of electrical control of fish embryos at shallow endorheic lakes by using conditions at Malheur Lake as an example. Power transfer theory suggests that at relatively high water conductivities it becomes more difficult to achieve power transfer thresholds sufficient to kill small fish embryos without exceeding the power capabilities of commercially-available electrofishing equipment, and that power transfer to the embryo drops below 50% of the total power applied when water conductivities exceed 325 mu S/cm. Thus, water chemistry conditions most amenable to killing carp embryos with electricity in an arid, endorheic lake like Malheur Lake would most likely occur at lake inflows or more generally when the lake level is elevated. However, when spawning is dispersed or more spawning habitat is available during higher lake levels, the resulting increase in areas that require treatment may present logistical challenges. Managers considering the use of electrofishing to control recruitment of an invasive fish like common carp should consider the spatio-temporal arrangement of spawning sites, the spatial scale of the necessary control treatment, how compensatory effects may influence the overall population response, and the need for concurrent control methods targeting other life stages.


英文关键词invasive species control integrated pest management embryonic development electric waveform water conductivity power transfer
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000444796900010
WOS关键词CYPRINUS-CARPIO ; WATER-QUALITY ; BENTHIVOROUS FISH ; SHALLOW LAKES ; WILD CARP ; POPULATION ; HABITAT ; GROWTH ; ELECTROSHOCK ; SURVIVAL
WOS类目Biodiversity Conservation
WOS研究方向Biodiversity & Conservation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/211574
作者单位1.US Fish & Wildlife Serv, Abernathy Fish Technol Ctr, 1440 Abernathy Creek Rd, Longview, WA 98632 USA;
2.US Fish & Wildlife Serv, Malheur Natl Wildlife Refuge, Princeton, OR 97721 USA;
3.US Fish & Wildlife Serv, Fisheries & Aquat Conservat, 911 NE 11th Ave, Portland, OR 97232 USA
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GB/T 7714
Simpson, William G.,Peterson, Douglas P.,Steinke, Kurt,et al. The efficacy of killing developing common carp embryos with electricity: using a laboratory evaluation to assess a potential means of reducing the recruitment of an invasive fish[J],2018,9(3):279-290.
APA Simpson, William G.,Peterson, Douglas P.,Steinke, Kurt,&Beck, Linda.(2018).The efficacy of killing developing common carp embryos with electricity: using a laboratory evaluation to assess a potential means of reducing the recruitment of an invasive fish.MANAGEMENT OF BIOLOGICAL INVASIONS,9(3),279-290.
MLA Simpson, William G.,et al."The efficacy of killing developing common carp embryos with electricity: using a laboratory evaluation to assess a potential means of reducing the recruitment of an invasive fish".MANAGEMENT OF BIOLOGICAL INVASIONS 9.3(2018):279-290.
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