Histomorphological and Dynamical Changes in Female River Lampreys during Maturation under Controlled Conditions as a Part of Lamprey Restoration Programs.

More than 40 species of lampreys (Petromyzontiformes) are known worldwide. Some of them are parasitic and feed on the blood of fish or other aquatic animals. Lampreys spawn once in their lifetime, after which they die.

Effect of temperature and spawning agents on wild female asp (Leuciscus aspius) reproductive efficiency under controlled conditions.

Artificial reproduction is a bottleneck to produce stocking material for many species of freshwater fish. One of these species is the asp, Leuciscus aspius. Research in the field of artificial reproduction of this species is very scarce and often incomplete.

Effect of anti-adhesive supplement doses on sperm motility characteristics in the European whitefish (Coregonus lavaretus).

Sperm adhering to glass slides is one of the main problems during fish sperm motility analyses with CASA systems. To mitigate this, albumin is the supplement added most frequently to activating solutions. However, there is no data on the use of supplements other than albumin (in various concentrations) in analyses of European whitefish (Coregonus lavaretus) sperm motility.

Effect of Different Water Salinities on the Larvae of the Blue Bream (Linnaeus, 1758) during Rearing.

The influence of water salinities of 3, 5, and 7 ppt on the growth and survival of (L.) larvae was studied. The control group was fish reared in freshwater (0 ppt).

Influence of Water Salinity on the Growth and Survivability of Asp Larvae (Linnaeus, 1758) under Controlled Conditions.

The effect of water with a salinity 3, 5, 7, 9 and 11 ppt on the growth and survivability of asp (L.) larvae was investigated. A control sample consisted of asp larvae reared up in freshwater (0 ppt).