Effects of Triploid Grass Carp on Aquatic Plants, Water Quality, and Public Satisfaction in Washington State

Bonar, Scott A.; Bolding, Bruce; Divens, Marc

doi:10.1577/1548-8675(2002)022<0096:eotgco>2.0.co;2

Cited by 25 publications

(20 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, variable success has resulted in Grass Carp stocking rates that range from 2 to 500 fish/vegetated hectare (Kilgen and Smitherman 1971;Allen and Wattendorf GROWTH OF GRASS CARP STOCKED FOR HYDRILLA CONTROL 15 1987; Bonar et al 1993Bonar et al , 2002Kirk et al 2000). Traditional approaches to using Grass Carp for biological control of hydrilla often involve large, isolated stocking events.…”

mentioning

confidence: 99%

“…In some cases, weed management goals target some intermediate level of noxious weed infestation that is specific to stakeholder views and generally is based on some predetermined surface coverage of hydrilla (Bonar et al 2002). This management goal is highly controversial but generally is the result of conflicting stakeholder views (Chilton and Magnelia 2008;Richardson 2008).…”

mentioning

confidence: 99%

“…This approach theoretically allows fisheries managers to make adjustments to Grass Carp stocking rates so that fish density can be maintained at a desired level based on knowledge of the population's growth, mortality, and longevity. However, information regarding population characteristics of Grass Carp is often lacking; therefore, stocking rates are commonly determined on the basis of maintaining a desired number of Grass Carp per total surface area of the lake or per unit of surface weed coverage (e.g., Kirk et al 2000;Bonar et al 2002;Chilton and Magnelia 2008;) rather than based on the biology of Grass Carp in the system of interest. For example, this management approach assumes that for the purpose of making management decisions, the number of Grass Carp in a system is more important than Grass Carp biomass; however, this assumption has not been validated for large reservoirs.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Growth and Population Size of Grass Carp Incrementally Stocked for Hydrilla Control

Stich

Dicenzo

Frimpong

et al. 2013

N American J Fish Manag

View full text Add to dashboard Cite

In weed control plans that use Grass Carp Ctenopharyngodon idella for intermediate control of hydrilla Hydrilla verticillata, the knowledge of population dynamics improves efficacy of management. Our objective was to characterize growth, mortality, and associated population metrics of long‐lived (up to 16 years) triploid Grass Carp that were incrementally stocked into Lake Gaston, Virginia–North Carolina, starting in 1995. Grass Carp (ages 1–16) were collected by bowfishers during 2006–2010. Growth of Grass Carp was described by the von Bertalanffy growth model as Lt = 1,297[1 − e −0.1352(t +1.52)], where Lt is TL at age t. We used three methods to estimate Grass Carp mortality, and annual abundance and biomass of Grass Carp were estimated from each mortality estimate. Estimated annual mortality ranged from 0.20 to 0.25 depending on the method used. The use of constant mortality rates versus age‐specific mortality rates produced divergent models of Grass Carp biomass and represented a different approach for tracking the progress of weed control. Grass Carp biomass (but not abundance) was related to hydrilla coverage in Lake Gaston based on several scenarios that described time lags between Grass Carp stocking in year i and decreases in hydrilla coverage (in years i, i + 1, …, i + 5). Regardless of the mortality estimate used to derive Grass Carp biomass, the strongest biomass–hydrilla coverage relationship was observed for a time lag of 4 years. Fish older than age 10 constituted nearly 50% of the total Grass Carp biomass in Lake Gaston during some years, and the relationship between Grass Carp biomass and hydrilla coverage was strongest when fish up to age 16 were included in models. These results indicate that Grass Carp up to at least age 16 are important for weed control, thus highlighting the need for stocking models and bioenergetics models that include contributions of older fish when assessing long‐lived Grass Carp populations.Received January 23, 2012; accepted October 3, 2012

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Growth and Population Size of Grass Carp Incrementally Stocked for Hydrilla Control

Stich

Dicenzo

Frimpong

et al. 2013

N American J Fish Manag

View full text Add to dashboard Cite

show abstract

“…Pengendalian secara biologis menggunakan ikan koan adalah cara yang terbaik karena tidak mengganggu ekologi perairan dan ekonomis (El Samman & El Ella, 2006). Ikan koan merupakan jenis ikan yang paling efektif digunakan untuk mengendalikan populasi eceng gondok (Soeryani, 1982;Ryding & Rast,1989;Opuszynski & Shireman,1995;Petr, 2000;Hartoto et al, 2001;Hickley & Harper, 2002;Bonar et al, 2002;Pokorny & Kvet, 2004;Cudmore et al, 2004;Pipalova, 2006;Gardner, 2008). Dampak dari perambanan ikan terhadap eceng gondok mempengaruhi sedimen, bahan organik total, kualitas air dan fitoplankton (Pipalova, 2006).…”

Section: Pendahuluanunclassified

PENGARUH PERAMBANAN ECENG GONDOK (Eichhornia crassipes) OLEH IKAN KOAN (Ctenopharyngodon idella) TERHADAP KESUBURAN (N, P) DAN KELIMPAHAN FITOPLANKTON DI DANAU LIMBOTO

Krismono¹,

Rahardjo

Harris

et al. 2017

BAWAL Widya Riset Perikanan Tangkap

View full text Add to dashboard Cite

Pengendalian gulma air eceng gondok (Eichhornia crassipes) dengan ikan koan (Ctenopharyngodon idella) akan meningkatkan kesuburan perairan sebagai akibat sekresi dari ikan koan yang dikeluarkan di air. Penelitian mengenai pengaruh perambanan eceng gondok oleh ikan koan terhadap kesuburan perairan, N, P, dan kelimpahan fitoplankton di Danau Limboto perlu dilakukan. Penelitian ini bertujuan untuk mengkaji pengaruh perambanan ikan koan terhadap kesuburan perairan (N, P) dan kelimpahan fitoplankton di Danau Limboto. Metode penelitian dilakukan dengan percobaan menggunakan perlakuan pakan eceng gondok pada ikan koan. Rancanganpercobaan dengan rancangan acak lengkap dengan tiga ulangan dan satu kontrol. Hasil penelitian menunjukan bahwa laju perambanan ikan koan dengan kepadatan 100, 200, dan 400 ekor dengan biomassa eceng gondok 10 kg mempengaruhi peningkatan produktivitas perairan atau kesuburan (N dan P) dan kelimpahan fitoplankton. Kepadatan ikan koan 200 ekor adalah kepadatan yang paling efektif untuk pengendalian eceng gondok dibanding kepadatan 100 dan 400 ekor. To control of waterhyacinth (Eichhornia crassipes) using grass carp (Ctenopharyngodon idella) was fertilized in waters because of excresi of grass carp. The research is to knowed effect of grazing of grass carp to waterhyasinth to productivity and abundance of phytoplankton in Limboto Lake. Reseach Metodology is used experiment with rendom completed desaign with three treatmen with three replycation and one kontrol. The result each showed treatmen of stocking density 100, 200, 400 fish each cage, and fitoplankton abundance, stocking density 200 fish is cage increasing productivity, fitoplnkton abundance of lake. The treatmen stocking density 200 each cage Increased productivity of lake most effective to control waterhyacinth than stocking density 100 and 400 fish/cage.

show abstract

“…However, there was a tendency to higher chl-a concentration and lower water transparency in the pond stocked with grass carp. The decrease in water transparency (increase in turbidity) following from the grass carp stocking was related either to abiotic factors (sediment movements due to the wind and/or fish searching for food) (Lembi et al, 1978;Leslie et al, 1983;Mitchell et al, 1984;Bonar et al, 2002) or to biotic factors (phytoplankton biomass) (Maceina et al, 1992). The source of turbidity mostly depends on the intensity of macrophyte biomass reduction.…”

Section: Phytoplankton Abundance and Biomassmentioning

confidence: 99%

Limnological changes in a pond ecosystem caused by grass carp (Ctenopharyngodon idella Val.) low stocking density

Pípalová¹,

Květ²,

Adámek³

2009

CZECH J ANIM SCI

View full text Add to dashboard Cite

Grass carp (Ctenopharyngodon idella Val.) stocked (29 kg/ha) in a small pond reduced the biomass of aquatic macrophytes from 109 g/m 2 to 33 g/m 2 during one growing season. The only changes in hydrochemical parameters (pH, alkalinity, acidity, BOD 5 , COD Mn , NH 4 -N, NO 2 -N, NO 3 -N, TN, PO 4 -P and TP) associated with the grass carp stocking were a decrease in pH (from 8.43 to 7.57) and in NO 3 -N concentration (from 0.99 mg/l to 0.56 mg/l). The increases in organic matter content and NO 3 -N concentration in the surface sediment layer were higher in the control pond than in the pond stocked with grass carp. No changes were detected in the other parameters (NH 4 -N, PO 4 -P and TP) in the upper sediment layer and between all parameters measured in the lower inorganic layer. The grass carp grazing had no impact on phytoplankton biomass (concentration of chlorophyll-a) or species composition. There were no changes either in the abundance or in the species composition of zooplankton and zoobenthos induced by grass carp. Statistically significant indirect changes (in water and sediment chemistry) following the grass carp stocking were connected especially with a reduction in the biomass of the filamentous alga (Cladophora globulina) or rather with its maintenance in the control pond.

show abstract

Effects of Triploid Grass Carp on Aquatic Plants, Water Quality, and Public Satisfaction in Washington State

Cited by 25 publications

References 11 publications

Growth and Population Size of Grass Carp Incrementally Stocked for Hydrilla Control

Growth and Population Size of Grass Carp Incrementally Stocked for Hydrilla Control

PENGARUH PERAMBANAN ECENG GONDOK (Eichhornia crassipes) OLEH IKAN KOAN (Ctenopharyngodon idella) TERHADAP KESUBURAN (N, P) DAN KELIMPAHAN FITOPLANKTON DI DANAU LIMBOTO

Limnological changes in a pond ecosystem caused by grass carp (Ctenopharyngodon idella Val.) low stocking density

Contact Info

Product

Resources

About