Changes in Pelagic Fish Community Composition, Abundance, and Biomass along a Productivity Gradient in Subtropical Lakes

Yu, Jinlei; Wei, Zhen; Kong, Lingyang; He, Hongbo; Zhang, Yongdong; Yang, Xiangdong; Chen, Feizhou; Zhang, Min; Liu, Zhengwen

doi:10.3390/w13060858

Cited by 22 publications

(14 citation statements)

References 65 publications

(127 reference statements)

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“…Common carp Cyprinus carpio was chosen as our model benthivorous fish species. It is the most widely distributed freshwater fish, has successfully invaded or naturalized in many countries world-wide, including Asia, Europe, America and Australia (Vilizzi et al, 2015) and is a common species in Chinese lakes containing the two test macrophyte species (Guo et al, 2010;Li, Fan, et al, 2017;Yu et al, 2021). We used juvenile carp to arrive at a realistic fish density (see below).…”

Section: Macrophyte and Fish Speciesmentioning

confidence: 99%

Warming alters juvenile carp effects on macrophytes resulting in a shift to turbid conditions in freshwater mesocosms

Zhang

Wang

et al. 2021

Journal of Applied Ecology

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1. Multiple stressors such as climate change and eutrophication are responsible for the global decline in macrophytes in lakes. The loss of this key component can result in turbid conditions and a loss of important ecosystem functions and services, particularly in shallow lakes. Benthivorous fish, which can increase in abundance during eutrophication, can adversely affect macrophytes through physical disturbance, cascading effects on turbidity, suspended and attached algae (phytoplankton and periphyton) and direct consumption. However, whether warming amplifies their effects on macrophytes and can trigger regime shifts remains unexplored.2. Here, we tested the single and combined effects of warmer water (+4.5°C) and the widespread benthivorous juvenile common carp Cyprinus carpio on two different types of aquatic macrophytes in 24 mesocosms (2,500 L each). We monitored phytoplankton, periphyton, turbidity and the abundance of the submerged curly leafed pondweed Potamogeton crispus and the floating-leaved water chestnut Trapa bispinosa during their growing season. These species dominated successively in spring and summer.3. Warming alone advanced the growing season of P. crispus by 17 days. Juvenile carp decreased the abundance of the more palatable P. crispus, but promoted the abundance of T. bispinosa, supporting an ecosystem shift to a dominance of floating-leaved macrophytes. Fish also substantially increased water turbidity and the biomass of phytoplankton and periphyton. Warming amplified juvenile carp effects on turbidity and submerged macrophytes, but also decreased the abundance of floating-leaved macrophytes leading to an overall macrophyte decline and increase in water turbidity. Synthesis and applications.Our study provides the first experimental evidence for a warming-induced regime shift from clear-water conditions dominated by submerged or floating/floating-leaved macrophytes to a turbid state in shallow aquatic ecosystems. The regime shift was triggered by the impacts of warming on benthivorous fish (juvenile common carp) rather than on macrophytes. Lowering nutrient loading and other measures to reduce the abundance of benthivorous

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Section: Macrophyte and Fish Speciesmentioning

confidence: 99%

Warming alters juvenile carp effects on macrophytes resulting in a shift to turbid conditions in freshwater mesocosms

Zhang

Wang

et al. 2021

Journal of Applied Ecology

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“…High abundances of small-bodied fishes can reduce species diversity within fish communities and affect the complexity and stability of ecosystems (Lima et al, 2016;Liu et al, 2017). Some studies demonstrated that the overabundance of small-bodied fishes and declines in overall fish diversity were accompanied by the deterioration of water quality (Karr, 1981(Karr, , 1991Karr et al, 1986;Yu et al, 2021). Moreover, the present study revealed a significant reduction in the Shannon-Wiener diversity index, the Pielou evenness index and the Simpson's diversity index of fishes inhabiting the Mangshe River versus Lake Yanlong.…”

Section: Discussion Spatial Patterns In Fish Community Compositionmentioning

confidence: 99%

Spatial Variation in the Composition and Diversity of Fishes Inhabiting an Artificial Water Supply Lake, Eastern China

Guo

et al. 2022

Front. Ecol. Evol.

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With the intensification of eutrophication, many artificial water supply lakes that act as a biological filter for water diverted from rivers have been built to alleviate water scarcity in Eastern China. In this study, we selected Lake Yanlong, a representative artificial water supply lake in Yancheng City, as our experimental lake to explore how the community composition of fishes changed among different habitat types and assess potential consequences for effective water treatment. From October 2015 to October 2020, we conducted quarterly surveys of fish communities and environmental factors in the Mangshe River (MR; water for lake) compared to four different water treatment zones of Lake Yanlong (PZ, the pretreatment zone with inlet from the MR; EZ, the emergent macrophyte zone; SZ, the submerged macrophyte zone; DZ, the deep purification zone with outlet to urban waterworks). A total of 16,339 individual fish belonging to 11 families and 49 species were collected. Six of the eight dominant species observed across zones were small-bodied fishes. Despite reduced fish species richness, the relative abundance and biomass of fishes tended to be higher in Lake Yanlong relative to the MR. The Shannon-Wiener diversity index, Pielou evenness index, Simpson’s diversity index all decreased from the MR to the DZ in the following sequence: MR < PZ < EZ < SZ < DZ. Analysis of similarities and similarity percentage analysis confirmed that fish communities differed significantly among zones and Coilia ectenes, Carassius auratus, Pseudobrama simony, Hemiculter leucisculus, and Hemiculter bleekeri were the major differentiating species. Mantel’s test and redundancy analysis revealed that water depth, aquatic vegetation coverage, and phytoplankton concentrations were the major factors determining the spatial distribution of fishes when moving from the MR to the DZ of Lake Yanlong. Stocking piscivorous fish can be used as an effective measure to control the abundance of prolific small-bodied fishes in Lake Yanlong. The details backing these findings are important for understanding how the community composition of fishes among habitat types in Lake Yanlong influence water quality, and to develop suitable biomanipulation strategies for the management of fish resources and maintaining proper function of these artificial water supply lakes.

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“…Eutrophication enhances phytoplankton biomass (Wetzel, 2000), which generally leads to higher total fish biomass and density (Brucet et al, 2013;Jeppesen et al, 2000;Yu et al, 2021). However, while planktivorous and omnivorous fish benefit from eutrophication (Robertis et al, 2003;Yu et al, 2021), the feeding efficiency of piscivorous fish is often reduced, in part due to the high water turbidity and competition with other fish at the juvenile stage (Jeppesen et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Larger and deeper lakes usually have higher fish richness and abundance due to their wider range of microhabitats and greater stability than smaller and shallower lakes (Brucet et al, 2013; Drakou et al, 2009; Olin et al, 2002). Eutrophication enhances phytoplankton biomass (Wetzel, 2000), which generally leads to higher total fish biomass and density (Brucet et al, 2013; Jeppesen et al, 2000; Yu et al, 2021). However, while planktivorous and omnivorous fish benefit from eutrophication (Robertis et al, 2003; Yu et al, 2021), the feeding efficiency of piscivorous fish is often reduced, in part due to the high water turbidity and competition with other fish at the juvenile stage (Jeppesen et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Associations between submerged macrophytes and fish communities at two spatial scales in 88 temperate shallow lakes

et al. 2023

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Fish community structure is affected by a range of lake characteristics, including the cover of macrophytes that provide spawning habitats, nursery area, refuge against predators, and food. We assessed fish–macrophyte relationships at both lake and point scale using an extensive dataset from 88 Danish shallow lakes (maximum depth ≤4.5 m). At lake scale, we used mean values from fish and macrophyte community samples for all lakes, in total 88 samples. The point scale data were derived from multiple points in each lake (in total 595 samples) where both macrophytes and fish were sampled, allowing us to assess within‐lake variations. We found generally negative relationships between macrophyte cover and fish abundance and biomass, which was strongest at point scale. Contrary to macrophytes, chlorophyll a showed positive relationships with fish abundance—except for perch and all fish <10 cm, which did not show significant relationships. The deeper and more eutrophic the lakes, the more the fish tended to occupy points covered by macrophytes. The abundances of species such as roach and bream were negatively related to macrophyte cover, but, for perch, this relationship was not significant. Our results suggest that fish abundance and biomass were associated with a combination of factors that are often intercorrelated and difficult to isolate. The relationship between fish abundance and biomass and macrophyte cover may depend on, among other factors, fish species, fish size, and the characteristics of the individual lakes.

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Changes in Pelagic Fish Community Composition, Abundance, and Biomass along a Productivity Gradient in Subtropical Lakes

Cited by 22 publications

References 65 publications

Warming alters juvenile carp effects on macrophytes resulting in a shift to turbid conditions in freshwater mesocosms

Warming alters juvenile carp effects on macrophytes resulting in a shift to turbid conditions in freshwater mesocosms

Spatial Variation in the Composition and Diversity of Fishes Inhabiting an Artificial Water Supply Lake, Eastern China

Associations between submerged macrophytes and fish communities at two spatial scales in 88 temperate shallow lakes

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