BIOLOGICAL ROLE OF NORTHERN PIKE, ESOX LUCIUS (LINNEAUS 1758) IN CONTROL OF AQUATIC PESTS IN CARPS CULTURE PONDS

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KHAVAL A.; ABBASI K.; VALIPOUR A.

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Journal: Iranian Scientific Fisheries Journal Year:2010 | Volume:19 | Issue:2 Page(s): 39-50

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Title

BIOLOGICAL ROLE OF NORTHERN PIKE, ESOX LUCIUS (LINNEAUS 1758) IN CONTROL OF AQUATIC PESTS IN CARPS CULTURE PONDS

Author(s)

KHAVAL A. | ABBASI K. | VALIPOUR A. | Issue Writer Certificate

Keywords

ESOX LUCIUSQ2

BIOLOGICAL CONTROLQ3

UNWANTED AQUATIC ORGANISMSQ3

INCREASE IN PRODUCTIONQ2

Abstract

The effects of northern pike, ESOX LUCIUS, in controlling coarse fish and other pest organisms and enhancing harvest size in carp ponds was investigated. We used two treatments and one control each with three replicates. The pike density was 200 and 500 fish individuals per hectare for the first and second treatments, respectively and the control pond had no pike.The carp density in ponds was 3500 individuals per hectare and stocking rate s were 55% silver carp, 20% common carp, 10% bighead carp and 15% grass carp. Survival rate of the northern pike in treatments 1 and 2 was 43.8 and 40%, respectively.The results showed that the mean (±SD) biomass of unwanted fishes (13 species) in the control treatment was 358.8±55.4kg/h and in the first and second treatments were 74.2±6.3 and 92.2±10.9kg/h, respectively in the end of the trial period. So unwanted fishes biomass reduced by 79.3% and 74.3% in the two treatments, respectively. Stomach investigation showed that the pike fed mostly on frog juveniles and some pest fishes like Hemiculter leucisculus, Pseudorasbora parva, Carassius auratus, and few Macrobrachium and aquatic insects. Also, the average biomass of unwanted fishes like Carassius auratus, Hemiculter leucisculus, Alburnus alburnus and Pseudorasbora parva of the first and second treatments in comparison to control showed a reduction of 94, 88.9, 62.4 and 56.82 percent, respectively. A significant difference was found in the final mean weight of common carp between treatments and control ponds (P<0.05), as the weight of common carp in treatments ponds was 220% more than the control pond. Also, ESOX LUCIUS with controlling coarse fish increased cultured fish (such as common carp, grass carp, silver carp and bighead carp) production by about 17.9%.

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APA: Copy

KHAVAL, A., ABBASI, K., & VALIPOUR, A.. (2010). BIOLOGICAL ROLE OF NORTHERN PIKE, ESOX LUCIUS (LINNEAUS 1758) IN CONTROL OF AQUATIC PESTS IN CARPS CULTURE PONDS. IRANIAN SCIENTIFIC FISHERIES JOURNAL, 19(2), 39-50. SID. https://sid.ir/paper/4932/en

Vancouver: Copy

KHAVAL A., ABBASI K., VALIPOUR A.. BIOLOGICAL ROLE OF NORTHERN PIKE, ESOX LUCIUS (LINNEAUS 1758) IN CONTROL OF AQUATIC PESTS IN CARPS CULTURE PONDS. IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2010;19(2):39-50. Available from: https://sid.ir/paper/4932/en

IEEE: Copy

A. KHAVAL, K. ABBASI, and A. VALIPOUR, “BIOLOGICAL ROLE OF NORTHERN PIKE, ESOX LUCIUS (LINNEAUS 1758) IN CONTROL OF AQUATIC PESTS IN CARPS CULTURE PONDS,” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 19, no. 2, pp. 39–50, 2010, [Online]. Available: https://sid.ir/paper/4932/en

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