Feeding response of Atlantic cod (Gadus morhua) to attractants made from by-products from the fishing industry
The aim of this behavioural study was to identify potential feeding attractants to be incorporated in an alternative longline bait for Atlantic cod. The attractants should be based on low-cost surplus resources that are not used for human consumption. The food search and feeding responses of wild ca...
Published in: | Fisheries Research |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/11250/2683135 https://doi.org/10.1016/j.fishres.2020.105535 |
id |
ftimr:oai:imr.brage.unit.no:11250/2683135 |
---|---|
record_format |
openpolar |
spelling |
ftimr:oai:imr.brage.unit.no:11250/2683135 2023-05-15T15:27:11+02:00 Feeding response of Atlantic cod (Gadus morhua) to attractants made from by-products from the fishing industry Palm, Anne Christine Utne Bogevik, André Sture Humborstad, Odd Børre Aspevik, Tone Pennington, Michael Robert Løkkeborg, Svein 2020 application/pdf https://hdl.handle.net/11250/2683135 https://doi.org/10.1016/j.fishres.2020.105535 eng eng Fisheries Research. 2020, 227 . urn:issn:0165-7836 https://hdl.handle.net/11250/2683135 https://doi.org/10.1016/j.fishres.2020.105535 cristin:1815937 8 227 Fisheries Research Peer reviewed Journal article 2020 ftimr https://doi.org/10.1016/j.fishres.2020.105535 2021-09-23T20:16:06Z The aim of this behavioural study was to identify potential feeding attractants to be incorporated in an alternative longline bait for Atlantic cod. The attractants should be based on low-cost surplus resources that are not used for human consumption. The food search and feeding responses of wild caught cod to eight attractants made from products from the fishing and aquaculture industry were compared to traditional squid bait in a laboratory study. All attractants tested triggered feeding responses in cod, indicating that there are several by-products from the fishing industry that have potential as an attractant for an artificial longline bait. The three most effective attractants were herring processing by-products, sand eel hydrolysate and hydrolysate by-products from the shrimp industry, which all elicited stronger food search and feeding responses than squid. Our results indicate that both free amino acids and other unidentified compounds are important in eliciting feeding responses in cod. Thus, attempts to identify efficient feeding attractants to be incorporated in alternative baits should be based on using complete aqueous extracts, rather than isolating a mixture of potent components. publishedVersion Article in Journal/Newspaper atlantic cod Gadus morhua Institute for Marine Research: Brage IMR Fisheries Research 227 105535 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
description |
The aim of this behavioural study was to identify potential feeding attractants to be incorporated in an alternative longline bait for Atlantic cod. The attractants should be based on low-cost surplus resources that are not used for human consumption. The food search and feeding responses of wild caught cod to eight attractants made from products from the fishing and aquaculture industry were compared to traditional squid bait in a laboratory study. All attractants tested triggered feeding responses in cod, indicating that there are several by-products from the fishing industry that have potential as an attractant for an artificial longline bait. The three most effective attractants were herring processing by-products, sand eel hydrolysate and hydrolysate by-products from the shrimp industry, which all elicited stronger food search and feeding responses than squid. Our results indicate that both free amino acids and other unidentified compounds are important in eliciting feeding responses in cod. Thus, attempts to identify efficient feeding attractants to be incorporated in alternative baits should be based on using complete aqueous extracts, rather than isolating a mixture of potent components. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Palm, Anne Christine Utne Bogevik, André Sture Humborstad, Odd Børre Aspevik, Tone Pennington, Michael Robert Løkkeborg, Svein |
spellingShingle |
Palm, Anne Christine Utne Bogevik, André Sture Humborstad, Odd Børre Aspevik, Tone Pennington, Michael Robert Løkkeborg, Svein Feeding response of Atlantic cod (Gadus morhua) to attractants made from by-products from the fishing industry |
author_facet |
Palm, Anne Christine Utne Bogevik, André Sture Humborstad, Odd Børre Aspevik, Tone Pennington, Michael Robert Løkkeborg, Svein |
author_sort |
Palm, Anne Christine Utne |
title |
Feeding response of Atlantic cod (Gadus morhua) to attractants made from by-products from the fishing industry |
title_short |
Feeding response of Atlantic cod (Gadus morhua) to attractants made from by-products from the fishing industry |
title_full |
Feeding response of Atlantic cod (Gadus morhua) to attractants made from by-products from the fishing industry |
title_fullStr |
Feeding response of Atlantic cod (Gadus morhua) to attractants made from by-products from the fishing industry |
title_full_unstemmed |
Feeding response of Atlantic cod (Gadus morhua) to attractants made from by-products from the fishing industry |
title_sort |
feeding response of atlantic cod (gadus morhua) to attractants made from by-products from the fishing industry |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2683135 https://doi.org/10.1016/j.fishres.2020.105535 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
8 227 Fisheries Research |
op_relation |
Fisheries Research. 2020, 227 . urn:issn:0165-7836 https://hdl.handle.net/11250/2683135 https://doi.org/10.1016/j.fishres.2020.105535 cristin:1815937 |
op_doi |
https://doi.org/10.1016/j.fishres.2020.105535 |
container_title |
Fisheries Research |
container_volume |
227 |
container_start_page |
105535 |
_version_ |
1766357638730219520 |