Development of invasive pink salmon (<scp> Oncorhynchus gorbuscha Walbaum</scp>) eggs in a large <scp>Barents Sea river</scp>

Abstract The spawning and egg development of invasive pink salmon Oncorhynchus gorbuscha were investigated in the large River Teno in the Barents Sea area where they spawned for the first time on a large scale in 2021. The spawning period started in early August and egg development was rapid. All eg...

Full description

Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Erkinaro, Jaakko, Orell, Panu, Pohjola, Jan‐Peter, Kytökorpi, Mikko, Pulkkinen, Henni, Kuusela, Jorma
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2022
Subjects:
Aquatic Science
Ecology, Evolution, Behavior and Systematics
Barents Sea
Teno
Oncorhynchus gorbuscha
Pink salmon
Online Access:http://dx.doi.org/10.1111/jfb.15157
https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.15157
https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jfb.15157
Description
Summary:Abstract The spawning and egg development of invasive pink salmon Oncorhynchus gorbuscha were investigated in the large River Teno in the Barents Sea area where they spawned for the first time on a large scale in 2021. The spawning period started in early August and egg development was rapid. All eggs were eyed by mid‐September and the first juveniles hatched in late September. In early October most eggs had hatched. Degree‐days in water temperature suggested that egg deposition had mostly taken place in early August. Early egg development is discussed in relation to possible consequences for survival.

Similar Items