The effect of food availability, age or size on the RNA/DNA ratio of individually measured herring larvae: laboratory calibration.

Clemmesen, Catriona (1994) The effect of food availability, age or size on the RNA/DNA ratio of individually measured herring larvae: laboratory calibration. Marine Biology, 118 . pp. 377-382. DOI 10.1007/BF00350294.

[img] Text
art_10.1007_BF00350294.pdf - Published Version
Restricted to Registered users only

Download (686Kb) | Contact

Supplementary data:

Abstract

RNA/DNA ratios in individual herring (Clupea harengus) larvae (collected from Kiel Bay, Baltic Sea, in 1989) were measured and proved suitable for determining nutritional status. Significant differences between fed and starving larvae appeared after 3 to 4 d of food deprivation in larvae older than 10 d after hatching. The RNA/DNA ratio showed an increase with age or length of the larvae and was less pronounced in starving larvae compared to fed larvae. The individual variability of RNA/DNA ratios in relation to larval length of fed larvae and of larvae deprived of food for intervals of 6 to 9 d is presented. Based on the length dependency and the individual variability found within the RNA/DNA ratios, a laboratory calibration is given to determine whether a larva caught in the field has been starving or not. An example for a field application is shown.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Evolutionary Ecology of Marine Fishes
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/BF00350294
ISSN: 0025-3162
Date Deposited: 17 Nov 2009 10:04
Last Modified: 06 Jun 2018 12:27
URI: http://oceanrep.geomar.de/id/eprint/4780

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...