Digestion of copepod eggs by larval turbot Scophthalmus maximus and egg viability following gut passage

Conway, DVP, McFadzen, IRB and Tranter, PRG 1994 Digestion of copepod eggs by larval turbot Scophthalmus maximus and egg viability following gut passage. Marine Ecology Progress Series, 106 (3). 303-309. https://doi.org/10.3354/meps106303

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Abstract/Summary

Between 20.5 and 93.6 % of the subitaneous eggs of 6 species of egg-carrying copepods passed undigested through the digestive tracts of larval and early postlarval turbot Scophthalmus maximus. Viability of the eggs of Eurytemora affinis, E. velox and Euterpina acutifrons remained high on egestion (67.0 to 91.7 %), Pseudocalanus elongatus and Oncaea venusta eggs had low viability (1.1 to 1.5 %), while all Corycaeus anglicus eggs were rendered inviable. The indigestibility of the eggs denies the turbot larvae a potentially valuable food resource, while retention of high egg viability in certain species reduces the effect of predation.

Item Type:	Publication - Article
Additional Keywords:	Predation Ichthyoplankton Digestion Natural mortality Fecal pellets Fish culture
Subjects:	Zoology
Divisions:	Plymouth Marine Laboratory > Other (PML)
Depositing User:	EPrints Services
Date made live:	26 Jan 2007
Last Modified:	25 Apr 2020 09:56
URI:	https://plymsea.ac.uk/id/eprint/1879

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