Reproduction of Baltic cod, Gadus morhua (Actinopterygii: Gadiformes: Gadidae), in the Gotland Basin: Causes of annual variability

• Published in: Acta Ichthyologica et Piscatoria
• Main Authors: Plikshs, Maris, Hinrichsen, Hans-Harald, Elferts, Didzis, Sics, Ivo, Kornilovs, Georgs, Köster, Friedrich W.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Societas Scientiarum Stetinensis 2015
• Subjects: Gotland Basin; Gadus morhua
• Online Access: https://oceanrep.geomar.de/id/eprint/30109/; https://oceanrep.geomar.de/id/eprint/30109/1/04_1623_F1.pdf; https://doi.org/10.3750/AIP2015.45.3.04

Background. The Gotland Basin spawning ground is one of three main spawning areas of Baltic cod, Gadus morhua Linnaeus, 1758. The threshold water parameters for cod development are the salinity exceeding 11‰ and the oxygen level above 2 mL· L–1. Such conditions are only present when the 11‰ isohalin...