Effects of tank colour and light intensity on feed intake, growth rate and energy expenditure of juvenile Eurasian perch, Perca fluviatilis L

Sammanfattning

Eurasian perch (Perca fluviatilis) is receiving increasing attention as a new species in freshwater aquaculture. Understanding perch behaviour and performance in culture is important to optimize the design and management of tanks, and other culture conditions. The objective of this study was to evaluate how different combinations of tank colour and light intensity affect the feed intake, growth and energy expenditure of juvenile perch. Feed intake, growth rate and energetic growth efficiency were measured using groups of perch exposed to different combinations of tank colour (white, grey or black) and light intensity (200 or 1100 1x). Six groups of six perch were exposed to each colour/light combination. The initial average weight (+/- SD) of the fish over all experimental rounds was 59.6 g (+/- 6.6). Perch in white and grey tanks ate more than the perch in black tanks (P

Nyckelord

Perca fluviatilis; tank colour; light intensity; feed intake; growth rate; growth efficiency

Publicerad i

Aquaculture
2007, volym: 272, nummer: 45661, sidor: 312-318
Utgivare: ELSEVIER SCIENCE BV

SLU författare

• Strand, Åsa

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

• Alanärä, Anders

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

• Staffan, Fia

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

• Magnhagen, Carin

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Fisk- och akvakulturforskning

Publikationens identifierare

• DOI: https://doi.org/10.1016/j.aquaculture.2007.08.052

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/15017