The logic of skipped spawning in fish
That sexually mature fish skip reproduction, especially in response to poor condition, has been documented in many species. We present results from an energy-allocation life history model that shed light on the underlying logic of skipped spawning, based on the Northeast Arctic stock of Atlantic cod...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
NRC Research Press
2006
|
Subjects: | |
Online Access: | https://pure.iiasa.ac.at/id/eprint/7894/ https://doi.org/10.1139/F05-210 |
id |
ftiiasalaxenburg:oai:pure.iiasa.ac.at:7894 |
---|---|
record_format |
openpolar |
spelling |
ftiiasalaxenburg:oai:pure.iiasa.ac.at:7894 2023-05-15T15:06:09+02:00 The logic of skipped spawning in fish Joergensen, C. Enande, B. Fiksen, O. Dieckmann, U. 2006-01 https://pure.iiasa.ac.at/id/eprint/7894/ https://doi.org/10.1139/F05-210 unknown NRC Research Press Joergensen, C., Enande, B., Fiksen, O., & Dieckmann, U. <https://pure.iiasa.ac.at/view/iiasa/66.html> orcid:0000-0001-7089-0393 (2006). The logic of skipped spawning in fish. Canadian Journal of Fisheries and Aquatic Sciences 63 (1) 200-211. 10.1139/F05-210 <https://doi.org/10.1139/F05-210>. doi:10.1139/F05-210 Article PeerReviewed 2006 ftiiasalaxenburg https://doi.org/10.1139/F05-210 2023-04-07T14:47:57Z That sexually mature fish skip reproduction, especially in response to poor condition, has been documented in many species. We present results from an energy-allocation life history model that shed light on the underlying logic of skipped spawning, based on the Northeast Arctic stock of Atlantic cod (Gadus morhua). The model predicts that skipped spawning is a regular phenomenon, with up to 30% of the sexually mature biomass skipping spawning. Spawning should be skipped if the expected future gain in reproductive output, discounted by survival, more than balances the expected reproductive success the current year. Skipped spawning was most common (i) among potential second-time spawners and (ii) early in life, (iii) when fishing mortality at the spawning grounds was high, (iv) when fishing mortality at the feeding grounds was low, (v) when natural mortality was low, and (vi) when the energetic and mortality costs associated with migration and spawning were high. Cod skipped spawning more often when food availability was both increased (opportunities for better growth) and decreased (too little energy for gonad development), and this pattern interacted with mortality rate. We conclude that skipped spawning may be more widespread than appreciated and highlight potential consequences for the understanding of stock-recruitment relationships. Article in Journal/Newspaper Arctic atlantic cod Gadus morhua IIASA PURE (International Institute of Applied Systems Analysis: PUblications REpository) Arctic Canadian Journal of Fisheries and Aquatic Sciences 63 1 200 211 |
institution |
Open Polar |
collection |
IIASA PURE (International Institute of Applied Systems Analysis: PUblications REpository) |
op_collection_id |
ftiiasalaxenburg |
language |
unknown |
description |
That sexually mature fish skip reproduction, especially in response to poor condition, has been documented in many species. We present results from an energy-allocation life history model that shed light on the underlying logic of skipped spawning, based on the Northeast Arctic stock of Atlantic cod (Gadus morhua). The model predicts that skipped spawning is a regular phenomenon, with up to 30% of the sexually mature biomass skipping spawning. Spawning should be skipped if the expected future gain in reproductive output, discounted by survival, more than balances the expected reproductive success the current year. Skipped spawning was most common (i) among potential second-time spawners and (ii) early in life, (iii) when fishing mortality at the spawning grounds was high, (iv) when fishing mortality at the feeding grounds was low, (v) when natural mortality was low, and (vi) when the energetic and mortality costs associated with migration and spawning were high. Cod skipped spawning more often when food availability was both increased (opportunities for better growth) and decreased (too little energy for gonad development), and this pattern interacted with mortality rate. We conclude that skipped spawning may be more widespread than appreciated and highlight potential consequences for the understanding of stock-recruitment relationships. |
format |
Article in Journal/Newspaper |
author |
Joergensen, C. Enande, B. Fiksen, O. Dieckmann, U. |
spellingShingle |
Joergensen, C. Enande, B. Fiksen, O. Dieckmann, U. The logic of skipped spawning in fish |
author_facet |
Joergensen, C. Enande, B. Fiksen, O. Dieckmann, U. |
author_sort |
Joergensen, C. |
title |
The logic of skipped spawning in fish |
title_short |
The logic of skipped spawning in fish |
title_full |
The logic of skipped spawning in fish |
title_fullStr |
The logic of skipped spawning in fish |
title_full_unstemmed |
The logic of skipped spawning in fish |
title_sort |
logic of skipped spawning in fish |
publisher |
NRC Research Press |
publishDate |
2006 |
url |
https://pure.iiasa.ac.at/id/eprint/7894/ https://doi.org/10.1139/F05-210 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic atlantic cod Gadus morhua |
genre_facet |
Arctic atlantic cod Gadus morhua |
op_relation |
Joergensen, C., Enande, B., Fiksen, O., & Dieckmann, U. <https://pure.iiasa.ac.at/view/iiasa/66.html> orcid:0000-0001-7089-0393 (2006). The logic of skipped spawning in fish. Canadian Journal of Fisheries and Aquatic Sciences 63 (1) 200-211. 10.1139/F05-210 <https://doi.org/10.1139/F05-210>. doi:10.1139/F05-210 |
op_doi |
https://doi.org/10.1139/F05-210 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
63 |
container_issue |
1 |
container_start_page |
200 |
op_container_end_page |
211 |
_version_ |
1766337809312907264 |