Insect attractants and plant biomass as natural food complements in pond culture of stock chub (Squalius cephalus)
Abstract
The chub, Squalius cephalus (L.), is an important stocking fish in European rivers. This study investigates sustainable measures for culturing chub in earthen ponds. Two novel treatments were applied to enhance utilisation of natural pond food resources: yellow plates used as insect attractants (YIT) and plant biomass supplementation (PB) as a substrate supporting the development of natural food organisms. While no significant differences were recorded for most environmental variables, average macrozoobenthos biomass was significantly higher (p < 0.05) in the control (61.51 g.m−2) compared with PB (29.3 g.m−2) and YIT (36.8 g.m−2). However, fish from YIT ponds had significantly higher (p < 0.05) mean body weight gain (34.7 g) and SGR (1.60 g.day−1) compared to the PB (28.65 g and 1.50 g.day−1) or control (25.64g and 1.43 g.day−1) ponds. Diet analysis indicated a higher amount of animal food (mainly zooplankton, zoobenthos, terrestrial insects and fish) in YIT and PB treatments, while a... higher amount of plant (mainly macrophytes) and emergency food (detritus) was observed in the control ponds. Differences in diet were reflected in the fatty acid profile of fish from different treatments, with YIT fish having significantly (p < 0.05) higher n-3 PUFA, n-3 HUFA and n-3/n-6 ratio, compared to PB fish and controls. Our results confirm that YIT use in pond aquaculture significantly enhances the role of natural food resources in the diet of cultured chub, thereby contributing to its sustainable production.
Keywords:
Fish nutrition / Insect attractants / Plant biomass / Pond aquaculture / Rheophilic fishSource:
Aquaculture International, 2021Publisher:
- Springer Science and Business Media Deutschland GmbH
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200116 (University of Belgrade, Faculty of Agriculture) (RS-MESTD-inst-2020-200116)
DOI: 10.1007/s10499-021-00682-w
ISSN: 0967-6120
WoS: 000627661700001
Scopus: 2-s2.0-85102496635
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Adámek, Zdeněk AU - Dulić, Zorka AU - Hlaváč, David AU - Anton-Pardo, Maria PY - 2021 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5829 AB - The chub, Squalius cephalus (L.), is an important stocking fish in European rivers. This study investigates sustainable measures for culturing chub in earthen ponds. Two novel treatments were applied to enhance utilisation of natural pond food resources: yellow plates used as insect attractants (YIT) and plant biomass supplementation (PB) as a substrate supporting the development of natural food organisms. While no significant differences were recorded for most environmental variables, average macrozoobenthos biomass was significantly higher (p < 0.05) in the control (61.51 g.m−2) compared with PB (29.3 g.m−2) and YIT (36.8 g.m−2). However, fish from YIT ponds had significantly higher (p < 0.05) mean body weight gain (34.7 g) and SGR (1.60 g.day−1) compared to the PB (28.65 g and 1.50 g.day−1) or control (25.64g and 1.43 g.day−1) ponds. Diet analysis indicated a higher amount of animal food (mainly zooplankton, zoobenthos, terrestrial insects and fish) in YIT and PB treatments, while a higher amount of plant (mainly macrophytes) and emergency food (detritus) was observed in the control ponds. Differences in diet were reflected in the fatty acid profile of fish from different treatments, with YIT fish having significantly (p < 0.05) higher n-3 PUFA, n-3 HUFA and n-3/n-6 ratio, compared to PB fish and controls. Our results confirm that YIT use in pond aquaculture significantly enhances the role of natural food resources in the diet of cultured chub, thereby contributing to its sustainable production. PB - Springer Science and Business Media Deutschland GmbH T2 - Aquaculture International T1 - Insect attractants and plant biomass as natural food complements in pond culture of stock chub (Squalius cephalus) DO - 10.1007/s10499-021-00682-w ER -
@article{ author = "Adámek, Zdeněk and Dulić, Zorka and Hlaváč, David and Anton-Pardo, Maria", year = "2021", abstract = "The chub, Squalius cephalus (L.), is an important stocking fish in European rivers. This study investigates sustainable measures for culturing chub in earthen ponds. Two novel treatments were applied to enhance utilisation of natural pond food resources: yellow plates used as insect attractants (YIT) and plant biomass supplementation (PB) as a substrate supporting the development of natural food organisms. While no significant differences were recorded for most environmental variables, average macrozoobenthos biomass was significantly higher (p < 0.05) in the control (61.51 g.m−2) compared with PB (29.3 g.m−2) and YIT (36.8 g.m−2). However, fish from YIT ponds had significantly higher (p < 0.05) mean body weight gain (34.7 g) and SGR (1.60 g.day−1) compared to the PB (28.65 g and 1.50 g.day−1) or control (25.64g and 1.43 g.day−1) ponds. Diet analysis indicated a higher amount of animal food (mainly zooplankton, zoobenthos, terrestrial insects and fish) in YIT and PB treatments, while a higher amount of plant (mainly macrophytes) and emergency food (detritus) was observed in the control ponds. Differences in diet were reflected in the fatty acid profile of fish from different treatments, with YIT fish having significantly (p < 0.05) higher n-3 PUFA, n-3 HUFA and n-3/n-6 ratio, compared to PB fish and controls. Our results confirm that YIT use in pond aquaculture significantly enhances the role of natural food resources in the diet of cultured chub, thereby contributing to its sustainable production.", publisher = "Springer Science and Business Media Deutschland GmbH", journal = "Aquaculture International", title = "Insect attractants and plant biomass as natural food complements in pond culture of stock chub (Squalius cephalus)", doi = "10.1007/s10499-021-00682-w" }
Adámek, Z., Dulić, Z., Hlaváč, D.,& Anton-Pardo, M.. (2021). Insect attractants and plant biomass as natural food complements in pond culture of stock chub (Squalius cephalus). in Aquaculture International Springer Science and Business Media Deutschland GmbH.. https://doi.org/10.1007/s10499-021-00682-w
Adámek Z, Dulić Z, Hlaváč D, Anton-Pardo M. Insect attractants and plant biomass as natural food complements in pond culture of stock chub (Squalius cephalus). in Aquaculture International. 2021;. doi:10.1007/s10499-021-00682-w .
Adámek, Zdeněk, Dulić, Zorka, Hlaváč, David, Anton-Pardo, Maria, "Insect attractants and plant biomass as natural food complements in pond culture of stock chub (Squalius cephalus)" in Aquaculture International (2021), https://doi.org/10.1007/s10499-021-00682-w . .