Effects of adult common carp (<i>Cyprinus carpio</i>) on multiple trophic levels in shallow mesocosms

Parkos, Joseph J.; Santucci, Victor J.; Wahl, David H.

doi:10.1139/f03-011

Cited by 218 publications

(218 citation statements)

References 29 publications

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“…This indicates that the feeding niche of common carp is largely benthic when only plankton and benthic macroinvertebrates are available in the system. This agrees with the general concept that common carp is a benthivorous fish (Parkos et al 2003).…”

Section: Discussionsupporting

confidence: 92%

Common carp (Cyprinus carpio L.) alters its feeding niche in response to changing food resources: direct observations in simulated ponds

Rahman

Kadowaki

Balcombe

et al. 2009

Ecological Research

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We used customized fish tanks as model fish ponds to observe grazing, swimming, and conspecific social behavior of common carp (Cyprinus carpio) under variable food-resource conditions to assess alterations in feeding niche. Different food and feeding situations were created by using only pond water or pond water plus pond bottom sediment or pond water plus pond bottom sediment and artificial feeding. All tanks were fertilized twice, prior to stocking and 2 weeks later after starting the experiment to stimulate natural food production. Common carp preferred artificial feed over benthic macroinvertebrates, followed by zooplankton. Common carp did not prefer any group of phytoplankton in any treatment. Common carp was mainly benthic in habitat choice, feeding on benthic macroinvertebrates when only plankton and benthic macroinvertebrates were available in the system. In the absence of benthic macroinvertebrates, their feeding niche shifted from near the bottom of the tanks to the water column where they spent 85% of the total time and fed principally on zooplankton. Common carp readily switched to artificial feed when available, which led to better growth. Common carp preferred to graze individually. Behavioral observations of common carp in tanks yielded new information that assists our understanding of their ecological niche. This knowledge could be potentially used to further the development of common carp aquaculture.

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Section: Discussionsupporting

confidence: 92%

Common carp (Cyprinus carpio L.) alters its feeding niche in response to changing food resources: direct observations in simulated ponds

Rahman

Kadowaki

Balcombe

et al. 2009

Ecological Research

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“…For example, invasive predators could have indirect positive effects on plant communities through cascading consumption (Schmitz et al 2000, Dyer & Letourneau 2003. Net effects of invasive omnivores may be more difficult to predict as they can have negative impacts on both plant and animal diversity through consumption and competition and may also provide food to higher trophic levels, as shown for invasive freshwater omnivores (Nyström & Strand 1996, Perry et al 1997, Parkos et al 2003. Finally, the direction of the effect size may vary with environmental conditions, as invaders can compete with or facilitate communities within trophic/functional positions depending on abiotic stress levels (Bertness & Callaway 1994).…”

Section: Discussionmentioning

confidence: 99%

Impacts of marine invaders on biodiversity depend on trophic position and functional similarity

Thomsen¹,

Byers²,

Schiel³

et al. 2014

Mar. Ecol. Prog. Ser.

132

112

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Impacts of marine invaders on local biodiversity have not been analyzed across invasive species and invaded habitats. We conducted a meta-analysis of 56 field experiments published in 29 papers that examined the effects of marine invaders on local species richness, diversity, and/or evenness. We show that invaders, across studies, typically have negative effects on biodiversity within a trophic level but positive effects on biodiversity of higher trophic levels. For example, both plants and sessile filter-feeders had positive effects on richness and diversity of mobile consumers. The contrasting negative and positive effects on similar versus higher trophic levels are potentially manifested through community-wide antagonism (competition and consumption) versus facilitation (habitat and food provisioning) interactions, respectively. These relation ships extended to functional interactions, as sessile invaders had negative effects on the biodiversity of sessile communities (intra-functional interactions) but positive effects on the biodiversity of mobile communities (inter-functional interactions). Our analyses highlight the importance of pairing attributes of the invader and the impacted organisms to obtain simple predictions of how the diversity of entire communities may respond to species invasions on local scales. We also note that our analysis did not require information on co-evolutionary history but that such data, coupled with long-term large-scale mensurative data, are needed to gain a comprehensive predictive insight into invasion impact.

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“…Adverse effect of C. carpio to other species is mostly due to its feeding behavior [7]. The carp feeds on benthic organisms by taking in sediments with food items and retains the prey while expelling the sediments through the gills [18]. Carp feeding mode uproots aquatic plants, stirs the sediments at the bottom, increases water suspended solids and affects water turbidity [18].…”

Section: Catch Trendsmentioning

confidence: 99%

An Overview of the Current Status of Lake Naivasha Fishery: Challenges and Management Strategies

Njiru¹,

Waithaka²,

Aloo³

2017

TOFISHSJ

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Lake Naivasha a shallow, freshwater body and a Ramsar site is found in the eastern arm of the Kenyan Rift Valley. This paper used published, unpublished and analyzed data to assess the status, challenges and management options for the fishery. Lake Naivasha fishery is based on exotic species that fluctuates depending on fishing regime, lake water level and aquatic plant concentrations. The fishery has been dominated by different species with the current catch contribution consisting mainly of common carp, Cyprinus carpio, Nile tilapia, Oreochromis niloticus, blue-spotted tilapia, O. leucostictus and African catfish, Clarias gariepinus. The minimum and maximum catch of 21 t yr -1 and 1181 t yr -1 was reported in 1997 and 2015, respectively. The main threats to the lake fishery are anthropogenic influences emanating from within the lake and its basin. The factors include intense fishing, exotic species introductions, water abstraction, lake level fluctuations, wetland utilization, eutrophication, and land degradation. There are also several conflicts of interest amongst the stakeholders in agriculture, fisheries, wildlife, tourism, conservation and geothermal electricity generation. There is fear that if the current trend persists, the lake and its fishery may be headed for extinction. The management measures instituted in the lake do not seem to have arrested reduction in fish catches nor reversed deterioration in water quality. For sustainable utilization of Lake Naivasha and its fishery, there is a need to consider a holistic ecosystem approach of the basin management. Additionally, all the relevant stakeholders should be involved in formulation and implementation of the decisions to manage the fishery.

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Effects of adult common carp (Cyprinus carpio) on multiple trophic levels in shallow mesocosms

Cited by 218 publications

References 29 publications

Common carp (Cyprinus carpio L.) alters its feeding niche in response to changing food resources: direct observations in simulated ponds

Common carp (Cyprinus carpio L.) alters its feeding niche in response to changing food resources: direct observations in simulated ponds

Impacts of marine invaders on biodiversity depend on trophic position and functional similarity

An Overview of the Current Status of Lake Naivasha Fishery: Challenges and Management Strategies

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