Erbrütung der Eier von Dorsch(Gadus morhua), Flunder(Pleuronectes flesus) und Scholle(Pleuronectes platessa) unter kombinierten Temperatur- und Salzgehaltsbedingungen
TLDR
From the results of these experiments it can be concluded that brackish water races of these fishes are likely to exist in the Baltic Sea.Abstract:
1. Die Eier von Dorsch (Gadus morhua L.), Flunder (Pleuronectes flesus L.) und Scholle (Pleuronectes platessa L.) der westlichen Ostsee wurden unter kombinierten Salzgehalts-Temperaturbedingungen (0°–16° C, 7‰–42‰ S) erbrutet. Es wurde untersucht, inwieweit die Embryonalentwicklung durch das Zusammenwirken von Temperatur und Salzgehalt beeinflust wird.read more
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Book ChapterDOI
4 Sublethal Effects of Pollutants on Fish Eggs and Larvae
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Changes in the timing of spawning of Baltic cod: possible causes and implications for recruitment
TL;DR: In this article, the effects of water temperature, size and age structure of the spawning stock, abundance of food, and timing of spawning in preceding years were studied as possible determinants of annual spawning time.
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Relative importance of estuarine flatfish nurseries along the Portuguese coast
Henrique N. Cabral,Rita P. Vasconcelos,Catarina Vinagre,Susana França,Vanessa F. Fonseca,Anabela Maia,Patrick Reis-Santos,Marta B. Lopes,Miguel Ruano,Joana Campos,Vânia Freitas,Paulo Santos,Marco Costa +12 more
TL;DR: Results showed that some estuaries along the Portuguese coast have nursery grounds used by several flatfish species (e.g. Ria de Aveiro, Sado estuary), while in other systems a segregation was noticed, with juveniles of different species occurring in distinct estuarine areas.
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Bioaccumulating substances and reproductive success in baltic flounder platichthys flesus
TL;DR: Viable hatch was significantly affected at ovary chlorinated hiphenyl (PCB) levels higher than 120 ng/g wet weight, which was designated a threshold level in flounder eggs above which reduced survival of developing eggs and larvas can be expected.
Journal ArticleDOI
Effects of salinity on spermatozoa motility, percentage of fertilized eggs and egg development of Baltic cod (Gadus morhua), and implications for cod stock fluctuations in the Baltic
L. Westin,Anders Nissling +1 more
TL;DR: The investigation revealed a reduction in spermatozoan motility and a subsequent reduction in the percentage of fertilized eggs in salinities of 10 to 12‰, which coincides with the osmolality of the seminal plasma and egg yolk, indicating the Baltic cod is adapted to hyperosmotic conditions for spawning and is thus totally dependent on periodical inflows of saline water from the North Sea.
References
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Journal ArticleDOI
Effects of Temperature, Salinity and Oxygen on the Survival of the American Lobster
TL;DR: Moulting lobsters are less resistant to high temperature, low salinity and low oxygen conditions than hard-shelled lobsters, and their Lethal levels are not altered by differences in size within the range 16–34 cm.
Journal ArticleDOI
Rates of development in embryos of a cyprinodont fish exposed to different temperature– salinity–oxygen combinations
Otto Kinne,Eva Maria Kinne +1 more
TL;DR: Eggs of the teleost fish were transferred approximately 4 hours after oviposition into a variety of temperature–salinity–oxygen combinations and rates of embryonic development were determined as length of time between fertilization and hatching and as time to attainment of certain embryonic stages.
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