Effects of Crucian Carp (Carassius auratus) on Water Quality in Aquatic Ecosystems: An Experimental Mesocosm Study

Huang, Yehui; Mei, Xueying; Rudstam, Lars G.; Taylor, William D.; Urabe, Jotaro; Liu, Zhengwen; Zhang, Xiufeng

doi:10.3390/w12051444

Cited by 12 publications

(6 citation statements)

References 53 publications

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“…In mesocosm experiments with Carassius auratus fingerlings, Huang et al [39] reported higher concentrations of TN, TP, and TSS. In the following years, the mass-specific excretion rate decreased, and the carp individuals switched from zooplanktivory to benthivory [40].…”

Section: Discussionmentioning

confidence: 99%

Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Berzi-Nagy

Mozsár

et al. 2021

Water

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Semi-intensive common carp (Cyprinus carpio) farm technology uses several feed types affecting the growth performance; however, we know less about their long-term effects on water quality. Herein, we evaluated the effects of three commonly used feeds—moderate levels of fish meal and fish oil feed (FF), plant meal and plant oil feed (PF), and cereal feed (CF) on the nutrient (total nitrogen (TN), total phosphorus (TP) and organic matter (OM)) content of the pond water. The experiment was carried out over three consecutive years from juveniles to market-sized fish. The type of feed affected the net yields, but generally, it did not affect the water quality. The year of sampling, however, was a significant factor affecting TN, TP, and OM, whose concentrations decreased during the three years. Our findings highlight that the age of the stocked fish on water quality has a more pronounced effect than the nutrient profile of the supplementary feed. Additionally, the plant-based feed could provide comparable net yields as the fish meal-based feed without additional nutrient loading in the water column, reinforcing the sustainability of alternative feeds in semi-intensive carp farming.

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Section: Discussionmentioning

confidence: 99%

Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Berzi-Nagy

Mozsár

et al. 2021

Water

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“…and Cyprinus spp. (Richardson et al 1995 ; Kloskowski 2009 ; Huang et al 2020 ). Colour vision in this species is tetrachromatic (Neumeyer 1992 ).…”

Section: Methodsmentioning

confidence: 99%

Increasingly cautious sampling, not the black colouration of unpalatable prey, is used by fish in avoidance learning

et al. 2023

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The efficiency of aposematic colouration of prey is based on the innate bias or facilitation of avoidance learning of predators. In many toxic bufonids, larvae are uniformly black, which is considered a warning signal. We compared fish predation on normal (black) and ‘transient albino’ (greyish) common toad Bufo bufo tadpoles that did not differ in toxicity or activity. In a two-stage experiment, each fish was presented with tadpoles of one colour in the first trial and the other colour in a subsequent trial. While tadpoles sampled by fish were typically not ingested, some died from injuries. The attack rate did not differ between tadpole phenotypes nor trials, irrespective of which phenotype was the first exposed to the fish. However, during the second trial, the sampled tadpoles, independent of colouration, were mouthed by fish for shorter periods and tadpole mortality decreased. The duration of mouthing also declined with an increasing number of attacks during subsequent trials. We conclude that in single-species prey populations, black tadpole colouration is not a warning signal as it does not accelerate predator learning about prey unprofitability. Our results indicate that with growing experience, predators sample potentially toxic prey more cautiously. This may explain why natural selection does not eliminate aposematic morphs even if predators continuously sample conspicuous prey.

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“…Fish are very important consumers in water bodies and can significantly affect the food web and trophic status [36]. Recent studies on Carassius auratus, which is related to Gibel carp, have shown that the presence of crucian carp can affect water quality and the intensity of light penetration [37].…”

Section: Fish Populationmentioning

confidence: 99%

Reconstruction of Ancient Lake after Peat Excavation—A Case Study about Water Quality

Staniszewski

Frankowski²,

Kayzer

et al. 2021

Applied Sciences

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According to regulations in some European countries, peat is treated as a fossil fuel or soil for mushroom horticulture and its management is subject to the law for mining activities. As a result of the exploitation of peat bogs, the cutaway or pit lakes remain, which when properly prepared can be local water resources. Such post-peat water bodies can be used for recreation and they can be particularly important in areas struggling with water deficiency in the rural landscape. Maintaining good water quality in such reservoirs requires a number of preparatory works, including the removal of the remaining organic matter that would rest at the bottom of the new pit lake, affecting the water quality. Studies of water quality and aquatic plant communities in the studied post-peat lake were carried out during the period 2012–2014 in order to determine the changes in water quality and the usefulness of water for cyprinids. Aquatic plant communities identified in the reservoir showed a simplified species composition, characteristic of initial communities, and they occupied small areas in the water and on the banks. It has been shown that water quality parameters of the studied water body were stable and corresponded to thresholds established for cyprinids.

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Effects of Crucian Carp (Carassius auratus) on Water Quality in Aquatic Ecosystems: An Experimental Mesocosm Study

Cited by 12 publications

References 53 publications

Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Increasingly cautious sampling, not the black colouration of unpalatable prey, is used by fish in avoidance learning

Reconstruction of Ancient Lake after Peat Excavation—A Case Study about Water Quality

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