Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus))
Arctic charr ( Salvelinus alpinus (Linnaeus)) is a stenothermic cold‐water fish, which has been cultured in Northern Europe and North America since the 1980s. The industry has remained relatively small with an annual production between 6000 and 10 000 tonnes, and is still challenged by an unreliable...
Published in: | Reviews in Aquaculture |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2019
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/16954 https://doi.org/10.1111/raq.12400 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/16954 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/16954 2023-05-15T14:24:30+02:00 Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) Olk, Tom Robin Thorarensen, Helgi Thor Jeuthe, Henrik Wollebæk, Jens Lydersen, Espen 2019-12-02 https://hdl.handle.net/10037/16954 https://doi.org/10.1111/raq.12400 eng eng Wiley Reviews in Aquaculture Olk, Thorarensen, Jeuthe, Wollebæk, Lydersen. Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) . Reviews in Aquaculture. 2019 FRIDAID 1760983 doi:10.1111/raq.12400 1753-5123 1753-5131 https://hdl.handle.net/10037/16954 openAccess Copyright 2019 The Author(s) VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2019 ftunivtroemsoe https://doi.org/10.1111/raq.12400 2021-06-25T17:57:01Z Arctic charr ( Salvelinus alpinus (Linnaeus)) is a stenothermic cold‐water fish, which has been cultured in Northern Europe and North America since the 1980s. The industry has remained relatively small with an annual production between 6000 and 10 000 tonnes, and is still challenged by an unreliable offspring production. This review focuses on offspring production in Arctic charr aquaculture including holding conditions for brood‐stock, fertilisation and egg rearing until hatch. Brood‐stock requires low temperatures during summer (<12°C) with the optimum still unknown. The temperature maximum for egg incubation lies between 6 and 8°C. The composition of an optimal brood‐stock diet is debated regarding fatty acids. A demand for a freshwater‐based diet rich in omega‐6 fatty acids is indicated, but results remain inconclusive. Extensive knowledge has been gained on the timing of spawning and its manipulation through photoperiod, temperature and hormone treatments; spawning can be induced by short‐day photoperiod; and temperature drops to 5°C. Eggs are fertilised dry in ovarian fluid. Egg quality is highly variable and positively related to egg size and energy density. Contrary, little information is available on sperm quality and its impact on egg survival. There may also be profound differences between Arctic charr of stationary or anadromous origin regarding requirements for holding conditions of brood‐stock and their diet. However, these differences have received little attention, and direct comparative studies are in demand. Article in Journal/Newspaper Arctic Arctic charr Arctic Salvelinus alpinus University of Tromsø: Munin Open Research Archive Arctic Reviews in Aquaculture |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 |
spellingShingle |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 Olk, Tom Robin Thorarensen, Helgi Thor Jeuthe, Henrik Wollebæk, Jens Lydersen, Espen Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 |
description |
Arctic charr ( Salvelinus alpinus (Linnaeus)) is a stenothermic cold‐water fish, which has been cultured in Northern Europe and North America since the 1980s. The industry has remained relatively small with an annual production between 6000 and 10 000 tonnes, and is still challenged by an unreliable offspring production. This review focuses on offspring production in Arctic charr aquaculture including holding conditions for brood‐stock, fertilisation and egg rearing until hatch. Brood‐stock requires low temperatures during summer (<12°C) with the optimum still unknown. The temperature maximum for egg incubation lies between 6 and 8°C. The composition of an optimal brood‐stock diet is debated regarding fatty acids. A demand for a freshwater‐based diet rich in omega‐6 fatty acids is indicated, but results remain inconclusive. Extensive knowledge has been gained on the timing of spawning and its manipulation through photoperiod, temperature and hormone treatments; spawning can be induced by short‐day photoperiod; and temperature drops to 5°C. Eggs are fertilised dry in ovarian fluid. Egg quality is highly variable and positively related to egg size and energy density. Contrary, little information is available on sperm quality and its impact on egg survival. There may also be profound differences between Arctic charr of stationary or anadromous origin regarding requirements for holding conditions of brood‐stock and their diet. However, these differences have received little attention, and direct comparative studies are in demand. |
format |
Article in Journal/Newspaper |
author |
Olk, Tom Robin Thorarensen, Helgi Thor Jeuthe, Henrik Wollebæk, Jens Lydersen, Espen |
author_facet |
Olk, Tom Robin Thorarensen, Helgi Thor Jeuthe, Henrik Wollebæk, Jens Lydersen, Espen |
author_sort |
Olk, Tom Robin |
title |
Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) |
title_short |
Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) |
title_full |
Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) |
title_fullStr |
Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) |
title_full_unstemmed |
Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) |
title_sort |
brood‐stock management and early hatchery rearing of arctic charr (salvelinus alpinus (linnaeus)) |
publisher |
Wiley |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/16954 https://doi.org/10.1111/raq.12400 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic Arctic charr Arctic Salvelinus alpinus |
op_relation |
Reviews in Aquaculture Olk, Thorarensen, Jeuthe, Wollebæk, Lydersen. Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) . Reviews in Aquaculture. 2019 FRIDAID 1760983 doi:10.1111/raq.12400 1753-5123 1753-5131 https://hdl.handle.net/10037/16954 |
op_rights |
openAccess Copyright 2019 The Author(s) |
op_doi |
https://doi.org/10.1111/raq.12400 |
container_title |
Reviews in Aquaculture |
_version_ |
1766296922851639296 |