Publication Abstract
- Title
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Variability in muscle growth characteristics during the spawning season in a natural population of Atlantic herring Clupea harengus
- Publication Abstract
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Variability in muscle growth characteristics during the spawning season in a natural population of Atlantic herring Clupea harengus
G.K. Temple, C.J. Fox, R. Stewart and I.A. Johnston
Muscle growth characteristics were investigated in a herring Clupea harengus L. population in the Blackwater estuary, Essex, England, between May and July 1998. Larval thermal his-tories were reconstructed using internally logging temperature recorders deployed within the estuary over the spawning season. The hatch dates of larvae were estimated using otolith microincrement analysis. Larvae were split into 3 groups; those developing from eggs laid early in the season when temperatures were low (6.4 to 9.8°C), those developing mid-season (8.3 to 12.5°C), and those devel-oping late (10.9 to 15.6°C). The number and size distribution of red and white myotomal muscle fibres varied between larvae from early- and mid-spawners in relation to estimated age. At approximately 60 d, the cross-sectional area of white muscle in mid-season larvae was 145% greater than in early-season larvae of an equivalent age because of 60% more muscle fibres and a 22% greater mean fibre diameter. The number and average diameter of red muscle fibres were proportional to body length, with no differences between the groups of larvae. However, for a given length, the average diameter of the white muscle fibres was significantly greater in mid- than early-season larvae. Muscle cellularity therefore varied for cohorts of larvae hatching at different times during the spawning season.
Reference:
G.K. Temple, C.J. Fox, R. Stewart and I.A. Johnston, 2000. Variability in muscle growth characteristics during the spawning season in a natural population of Atlantic herring Clupea harengus. Marine Ecology Progress Series, 205: 271-281.
- Publication Internet Address of the Data
- Publication Authors
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G.K. Temple, C.J. Fox*, R. Stewart and I.A. Johnston
- Publication Date
- January 2000
- Publication Reference
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Marine Ecology Progress Series, 205: 271-281
- Publication DOI: https://doi.org/
