Effects of benthic-feeding common carp and filter-feeding silver carp on benthic-pelagic coupling: Implications for shallow lake management
Effects of benthic-feeding common carp and filter-feeding silver carp on benthic-pelagic coupling: Implications for shallow lake management
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底栖鲤鱼和滤食性鲢鱼对底栖-中上层耦合的影响：对浅湖管理的启示
DOI：
10.1016/j.ecoleng.2015.12.039
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发表时间：
2016-03
影响因子：
3.8
通讯作者：
Rudstam Lars G.
中科院分区：
文献类型：
--
作者：
Zhang Xiufeng;Liu Zhengwen;Jeppesen Erik;Taylor William D.;Rudstam Lars G.
底栖-中上层耦合是浅湖动力学的关键因素。进行了为期 12 周的中生态实验，以检验底栖食性鲤鱼 (Cyprinus carpio) 减少底栖藻类生长并促进富营养化，以及滤食性鲢鱼 (Hypolookingmichthys molitrix) 刺激底栖藻类生长并促进清水状态建立的假设。与对照相比，鲤鱼处理的水体中总氮（TN）和总磷（TP）浓度较高，中上层藻类生物量（以叶绿素计）较高，总悬浮固体（TSS）浓度较高，光照强度较低，沉积物表面底栖藻类生物量较低。相对于对照，鲢鱼没有改变远洋藻类的叶绿素，但它们确实降低了底栖藻类的生物量并增加了TP和TSS。使用 32 P 放射性示踪剂进行微观实验，以检查两种鲤鱼对沉积物磷 (P) 释放的影响。有鲤鱼存在时向水柱的磷释放量高于没有鲤鱼存在的情况。鲢鱼实验的情况并非如此。我们的研究结果表明，鲤鱼和鲢鱼都会通过增加TP和TSS浓度以及减少沉积物表面底栖藻类的生物量来恶化水质。鲤鱼对水质的负面影响比鲢鱼更大，可能是因为只有鲤鱼增强了沉积物中磷的释放。对湖泊管理的影响是，从浅湖中清除鲤鱼和鲢鱼可能会促进底栖藻类的生长，并有助于促进清水状态的建立。
Benthic–pelagic coupling is a key factor in the dynamics of shallow lakes. A 12-week mesocosm experiment was set up to test the hypotheses that benthic-feeding common carp (Cyprinus carpio) reduce the growth of benthic algae and promote eutrophication and that filter-feeding silver carp (Hypophthalmichthys molitrix) stimulate benthic algae growth and promote the establishment of a clear-water state. Compared to the controls, the common carp treatment had higher concentrations of total nitrogen (TN) and total phosphorus (TP) in the water column, higher biomass of pelagic algae (measured as chlorophylla), higher total suspended solids (TSS) concentrations, lower light intensity, and lower biomass of benthic algae at the sediment surface. Silver carp did not change the chlorophyllaof pelagic algae relative to the controls, but they did decrease the biomass of benthic algae and increase TP and TSS. A microcosm experiment using32P radiotracer was conducted to examine effects of the two carp species on the release of sediment phosphorus (P). The P release to the water column was higher with common carp present than without common carp. This was not the case in the silver carp experiments. Our findings show that both common carp and silver carp deteriorate water quality by increasing TP and TSS concentrations and decreasing the biomass of benthic algae at the sediment surface. Common carp had a larger negative effect on water quality than silver carp, perhaps because only common carp enhanced P release from the sediment. The implications for lake management are that removal of both common carp and silver carp from shallow lakes may enhance the growth of benthic algae and help promote the establishment of a clear-water state.
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影响因子：
4.5
作者：
R. Timms;B. Moss
通讯作者：
R. Timms;B. Moss
DOI：
10.1127/0003-9136/2004/0161-0147
发表时间：
2004-10
期刊：
Archiv Fur Hydrobiologie
影响因子：
--
作者：
M. Chumchal;R. Drenner
通讯作者：
M. Chumchal;R. Drenner
影响因子：
4.5
作者：
R. Carlton;R. Wetzel
通讯作者：
R. Carlton;R. Wetzel
底栖藻类对浅湖沉积物与上覆水体磷交换的影响：以 32P 作为示踪剂的微观研究
影响因子：
2.6
作者：
Zhang XF, Liu ZW, Gulati RD, Jeppesen E
通讯作者：
Zhang XF, Liu ZW, Gulati RD, Jeppesen E
影响因子：
2.6
作者：
Taizo Miura
通讯作者：
Taizo Miura