Effects of water temperature on protein synthesis and protein growth in juvenile Atlantic wolffish (Anarhichas lupus)

I D McCarthy, E Moksness, D A Pavlov, D F Houlihan

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The effects of water temperature (5, 8, 11, and 14 degrees C) on the fractional rate (percent per day) of protein consumption (k(r)) and on white muscle and whole-body fractional rates of protein synthesis (k(s)), protein growth (k(g)), and growth efficiency (PPV, growth/consumption; k(g)/k(s), growth/synthesis) of juvenile Atlantic wolffish (Anarhichas lupus) (initial body weight 26 g) were studied. Rates of protein consumption and white muscle and whole-body protein synthesis increased in a linear fashion between 5 and 14 degrees C. In contrast, the relationships between temperature and white muscle and whole-body protein growth, protein growth efficiency (PPV) and protein synthesis retention efficiency (k(g)/k(s)) were parabolic. The results indicated that the optimum water temperatures for growth (T-opt.G) and growth efficiency (T-opt.GE) were 10-11 and 9-10 degrees C, respectively The maximum white muscle and whole-body protein growth rates recorded at T-opt.G were 0.9 and 0.7 %.day(-1), respectively. At T-opt.GE, the maximum white muscle and whole-body PPV values were 28 and 34%, respectively, and k(g)/k(s) values were 92 and 51%, respectively. The growth performance data for juvenile Atlantic wolffish in comparison with published data for salmonids (rainbow trout (Oncorhynchus mykiss), Atlantic salmon (Salmo salar)) at 9-11 degrees C further highlight its suitability as an alternative species for cold-water aquaculture in northern Europe and Atlantic Canada.

Original languageEnglish
Pages (from-to)231-241
Number of pages11
JournalCanadian Journal of Fisheries and Aquatic Sciences
Volume56
Publication statusPublished - 1999

Keywords

  • TROUT ONCORHYNCHUS-MYKISS
  • GLOBAL WARMING SCENARIO
  • NUCLEIC-ACID CONTENT
  • SALMO-SALAR L
  • RAINBOW-TROUT
  • CYPRINUS-CARPIO
  • SYNTHESIS RATES
  • RATION SIZE
  • EFFICIENCY
  • MUSCLE

Cite this

Effects of water temperature on protein synthesis and protein growth in juvenile Atlantic wolffish (Anarhichas lupus). / McCarthy, I D ; Moksness, E ; Pavlov, D A ; Houlihan, D F .

In: Canadian Journal of Fisheries and Aquatic Sciences, Vol. 56, 1999, p. 231-241.

Research output: Contribution to journalArticle

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T1 - Effects of water temperature on protein synthesis and protein growth in juvenile Atlantic wolffish (Anarhichas lupus)

AU - McCarthy, I D

AU - Moksness, E

AU - Pavlov, D A

AU - Houlihan, D F

PY - 1999

Y1 - 1999

N2 - The effects of water temperature (5, 8, 11, and 14 degrees C) on the fractional rate (percent per day) of protein consumption (k(r)) and on white muscle and whole-body fractional rates of protein synthesis (k(s)), protein growth (k(g)), and growth efficiency (PPV, growth/consumption; k(g)/k(s), growth/synthesis) of juvenile Atlantic wolffish (Anarhichas lupus) (initial body weight 26 g) were studied. Rates of protein consumption and white muscle and whole-body protein synthesis increased in a linear fashion between 5 and 14 degrees C. In contrast, the relationships between temperature and white muscle and whole-body protein growth, protein growth efficiency (PPV) and protein synthesis retention efficiency (k(g)/k(s)) were parabolic. The results indicated that the optimum water temperatures for growth (T-opt.G) and growth efficiency (T-opt.GE) were 10-11 and 9-10 degrees C, respectively The maximum white muscle and whole-body protein growth rates recorded at T-opt.G were 0.9 and 0.7 %.day(-1), respectively. At T-opt.GE, the maximum white muscle and whole-body PPV values were 28 and 34%, respectively, and k(g)/k(s) values were 92 and 51%, respectively. The growth performance data for juvenile Atlantic wolffish in comparison with published data for salmonids (rainbow trout (Oncorhynchus mykiss), Atlantic salmon (Salmo salar)) at 9-11 degrees C further highlight its suitability as an alternative species for cold-water aquaculture in northern Europe and Atlantic Canada.

AB - The effects of water temperature (5, 8, 11, and 14 degrees C) on the fractional rate (percent per day) of protein consumption (k(r)) and on white muscle and whole-body fractional rates of protein synthesis (k(s)), protein growth (k(g)), and growth efficiency (PPV, growth/consumption; k(g)/k(s), growth/synthesis) of juvenile Atlantic wolffish (Anarhichas lupus) (initial body weight 26 g) were studied. Rates of protein consumption and white muscle and whole-body protein synthesis increased in a linear fashion between 5 and 14 degrees C. In contrast, the relationships between temperature and white muscle and whole-body protein growth, protein growth efficiency (PPV) and protein synthesis retention efficiency (k(g)/k(s)) were parabolic. The results indicated that the optimum water temperatures for growth (T-opt.G) and growth efficiency (T-opt.GE) were 10-11 and 9-10 degrees C, respectively The maximum white muscle and whole-body protein growth rates recorded at T-opt.G were 0.9 and 0.7 %.day(-1), respectively. At T-opt.GE, the maximum white muscle and whole-body PPV values were 28 and 34%, respectively, and k(g)/k(s) values were 92 and 51%, respectively. The growth performance data for juvenile Atlantic wolffish in comparison with published data for salmonids (rainbow trout (Oncorhynchus mykiss), Atlantic salmon (Salmo salar)) at 9-11 degrees C further highlight its suitability as an alternative species for cold-water aquaculture in northern Europe and Atlantic Canada.

KW - TROUT ONCORHYNCHUS-MYKISS

KW - GLOBAL WARMING SCENARIO

KW - NUCLEIC-ACID CONTENT

KW - SALMO-SALAR L

KW - RAINBOW-TROUT

KW - CYPRINUS-CARPIO

KW - SYNTHESIS RATES

KW - RATION SIZE

KW - EFFICIENCY

KW - MUSCLE

M3 - Article

VL - 56

SP - 231

EP - 241

JO - Canadian Journal of Fisheries and Aquatic Sciences

JF - Canadian Journal of Fisheries and Aquatic Sciences

SN - 0706-652X

ER -