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| Title: | Variability of sprat peak spawning and larvae appearance timing in the southeastern Baltic Sea during the past six decades. |
| Authors: | Karasiova, Elena |
| ASFA Terms: | Spawning
Larvae
Fish larvae
Fish eggs
Eggs |
| Issue Date: | 2002 |
| Publisher: | Sea Fisheries Institute in Gdynia |
| Citation: | Bulletin of the Sea Fisheries Institute, Gdynia, 2. p. 57-67 |
| Abstract: | Based on the analysis of historical (Mankowski 1950a, 1950b, 1951, 1955, 1959, Grauman
1969, 1970, 1972, 1980a, 1980b) and recent (STORE EU-project FAIR CT-98 3959)
ichthyoplankton data, the seasonal dynamics of the Baltic sprat egg and larval abundance in the
Gdansk Deep were considered for different time periods: late 1940s early 1950s; late 1960s
mid 1970s; late 1990s. The percentage ratio of larvae to egg abundance was also estimated for
these periods.
Significant differences between these periods were revealed in larva peak timings and larva/egg
ratio values. The latter declined drastically towards the late 1990s. The possible influences of
factors such as increases in surface water temperature, oxygen depletion in the Baltic Sea, age
structure changes and increases in the larva dispersion rate are discussed. |
| URI: | http://www.ceemar.org/dspace/handle/11099/341 |
| Related document: | http://www.mir.gdynia.pl/pliki/osrodek/biuletyn/biulet2-02.pdf |
| ISSN: | 1429-2335 |
| Appears in Collections: | Bulletin of the Sea Fisheries Institute
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