| Citation | Grygiel, W. and M. Wyszyński, 2003. Temporal (1980-2001) and geographic variation in the sexual maturity at age and length of herring and sprat inhabiting the southern Baltic. Bull. Sea Fish. Inst. Gdynia 2(159):1-33. |
| DOI / ISBN | |
| Paper URL | |
| Ref. No. | 51258 |
| Language | English |
| Usage | not used yet |
| Remarks | |
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