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| Title: | Length correction of larval and early-juvenile herring (Clupea harengus L.) and smelt (Osmerus eperlanus L.) after preservation in formalin and alcohol. |
| Authors: | Fey, Dariusz P. |
| ASFA Terms: | Juveniles |
| Issue Date: | 2002 |
| Citation: | Bulletin of the Sea Fisheries Institute, Gdynia, 1. p. 47-51 |
| Abstract: | The most significant changes in the length of larval and juvenile herring and smelt
occurred after two days of preservation in 4% formaldehyde seawater solution. The larvae were
then transferred to 96% alcohol, this was followed by additional shrinkage over the next eight
days. The subsequent 90 days of preservation did not induce significant shrinkage. There were no
differences in shrinkage between smelt and herring and the degree of shrinkage for both species
was very much dependent on fish size, i.e. smaller specimens shrunk more (e.g. 12 mm SL: 8-18%)
than larger ones (e.g. 28 mm SL: 0-2%). The live length of larvae and juveniles that were initially
preserved in formalin and then transferred into alcohol can be back-calculated using an equation
that describes the relationship between SL measured prior to and after 10 days of preservation
(SLlive= 0.910 SLpreserved + 2.695; n = 154, R2 = 0.994). This equation can be used for length correction
of fish not larger than 30 mm in size when shrinkage is zero. |
| URI: | http://www.ceemar.org/dspace/handle/11099/295 |
| Related document: | Sea Fisheries Institute in Gdynia |
| ISSN: | 1429-2335 |
| Appears in Collections: | Bulletin of the Sea Fisheries Institute
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