The Buoyancy and Vertical Distribution of Eggs of Sprat (Sprattus Sprattus) and Pilchard (Sardina Pilchardus)
Abstract
Observations on the density of pelagic marine fish eggs have indicated that they are near neutral buoyancy for most of development and have a tendency to become denser towards hatching (see Russell, 1976). However, most of this information has been based on limited laboratory observations on the relative buoyancy of eggs; only a few experiments have given more precise estimates of the absolute density of eggs based on the salinity of water in which they are neutrally buoyant (e.g. Franz, 1910; Sundnes, Leivestad & Iversen, 1965). Recently, a new technique (Coombs, 1981), based on the use of a stable column of continuously graded sea-water concentration has allowed more precise and routine measurements of the density of fish eggs throughout development.
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Previous studies suggest that the vertical distribution of anchovy and sardine eggs is variable but in most cases a fraction of the eggs is always present in the first 5 meters.
“Previous studies (Coombs et al., 1985, Olivar et al., 2001, Boyra 20 et al., 2003, Coombs et al., 2003) suggest that the vertical distribution of anchovy and sardine eggs is variable but in most cases a fraction of the eggs is always present in the first 5 meters”
From Modelling potential spawning habitat of sardine ( <i>Sardina pilchardus</i> ) and anchovy ( <i>Engraulis encrasicolus</i> ) in the Bay of Biscay (2007) · cites this paper as Coombs et al., 1985
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PLANQUE, B., BELLIER, E., & LAZURE, P. (2007) · Fisheries Oceanography · doi:10.1111/j.1365-2419.2006.00411.x · Cited by 184 · see citing works
- Authors
- Coombs, S. H., Fosh, C. A., & Keen, M. A.
- Affiliations
- Natural Environment Research Council (GB)
- Venue
- Journal of the Marine Biological Association of the United Kingdom
- Publisher
- Cambridge University Press (CUP)
- Published
- 1985-05
- Volume
- 65
- Issue
- 2
- Pages
- 461-474
- ISSN
- 0025-3154 (ISSN-L)
- 1469-7769
- OpenAlex
- W2136922083
- Cited by
- 62
- References
- 0
- Citations by year
- 2023: 2 · 2019: 3 · 2016: 3 · 2015: 3 · 2014: 1 · 2013: 1 · 2012: 3
- FWCI
- 2.52
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the Marine Biological Association of the United Kingdom (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Fish Biology and Ecology Studies
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
- Keywords
- fish eggs, buoyancy, egg density, vertical distribution, sprat, pilchard, Sardina pilchardus, pelagic fish eggs, egg development, neutral buoyancy
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