Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase
We tagged 125 sea trout kelts (length: 460-925 mm) in Danish rivers with positively buoyant, depth-and temperature-sensing data storage tags. Eight tags were recovered from fish that had completed a full marine cycle (exit and return to natal river). Mean duration of the postestuary marine cycle was...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://orbit.dtu.dk/en/publications/2b3767de-6569-4d83-a86c-a1c6c66e2838 https://doi.org/10.3354/meps12618 https://backend.orbit.dtu.dk/ws/files/160041404/Post_Print.docx https://backend.orbit.dtu.dk/ws/files/151913253/Publishers_version.pdf https://backend.orbit.dtu.dk/ws/files/151913255/Publishers_version_Supplementary_material.pdf |
id |
ftdtupubl:oai:pure.atira.dk:publications/2b3767de-6569-4d83-a86c-a1c6c66e2838 |
---|---|
record_format |
openpolar |
spelling |
ftdtupubl:oai:pure.atira.dk:publications/2b3767de-6569-4d83-a86c-a1c6c66e2838 2024-05-12T08:01:23+00:00 Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase Kristensen, Martin Lykke Righton, David del Villar-Guerra, Diego Baktoft, Henrik Aarestrup, Kim 2018 application/vnd.openxmlformats-officedocument.wordprocessingml.document application/pdf https://orbit.dtu.dk/en/publications/2b3767de-6569-4d83-a86c-a1c6c66e2838 https://doi.org/10.3354/meps12618 https://backend.orbit.dtu.dk/ws/files/160041404/Post_Print.docx https://backend.orbit.dtu.dk/ws/files/151913253/Publishers_version.pdf https://backend.orbit.dtu.dk/ws/files/151913255/Publishers_version_Supplementary_material.pdf eng eng https://orbit.dtu.dk/en/publications/2b3767de-6569-4d83-a86c-a1c6c66e2838 info:eu-repo/semantics/openAccess Kristensen , M L , Righton , D , del Villar-Guerra , D , Baktoft , H & Aarestrup , K 2018 , ' Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase ' , Marine Ecology - Progress Series , vol. 599 , pp. 209-224 . https://doi.org/10.3354/meps12618 Sea trout Kelts Telemetry Data storage tag DST Temperature Depth /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2018 ftdtupubl https://doi.org/10.3354/meps12618 2024-04-17T15:07:54Z We tagged 125 sea trout kelts (length: 460-925 mm) in Danish rivers with positively buoyant, depth-and temperature-sensing data storage tags. Eight tags were recovered from fish that had completed a full marine cycle (exit and return to natal river). Mean duration of the postestuary marine cycle was 96.1 d (range: 47-142 d). The trout resided at depths of 0-3 m for 63.8% of the time and exhibited a characteristic diurnal behavioural pattern with repetitive dives deeper than 5.0 m during daytime and residency at the surface during night-time. The number of dives increased with day length, but dive duration was unaffected. Mean dive duration increased with water temperatures from 9.79 min at 5-7 degrees C to 79.8 min at 17-19 degrees C, and mean residence depth increased with water temperatures from 1.95 m at 5-7 degrees C to 10.1 m at 17-19 degrees C. The fish showed a marked response to temperatures above 17 degrees C by residing at greater depths and by discontinuing the characteristic dive/surface residency pattern for prolonged periods of time during warm periods. Temperature data indicated that the fish were generally close to land in the beginning of the marine period and had migrated into open sea during summer. Our results suggest that Danish sea trout kelts aim to optimize their growth at sea by exhibiting a characteristic foraging pattern similar to that of Atlantic salmon and by seeking temperatures within the range reported as optimal for growth in the species. Article in Journal/Newspaper Atlantic salmon Technical University of Denmark: DTU Orbit Marine Ecology Progress Series 599 209 224 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Sea trout Kelts Telemetry Data storage tag DST Temperature Depth /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Sea trout Kelts Telemetry Data storage tag DST Temperature Depth /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Kristensen, Martin Lykke Righton, David del Villar-Guerra, Diego Baktoft, Henrik Aarestrup, Kim Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase |
topic_facet |
Sea trout Kelts Telemetry Data storage tag DST Temperature Depth /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
We tagged 125 sea trout kelts (length: 460-925 mm) in Danish rivers with positively buoyant, depth-and temperature-sensing data storage tags. Eight tags were recovered from fish that had completed a full marine cycle (exit and return to natal river). Mean duration of the postestuary marine cycle was 96.1 d (range: 47-142 d). The trout resided at depths of 0-3 m for 63.8% of the time and exhibited a characteristic diurnal behavioural pattern with repetitive dives deeper than 5.0 m during daytime and residency at the surface during night-time. The number of dives increased with day length, but dive duration was unaffected. Mean dive duration increased with water temperatures from 9.79 min at 5-7 degrees C to 79.8 min at 17-19 degrees C, and mean residence depth increased with water temperatures from 1.95 m at 5-7 degrees C to 10.1 m at 17-19 degrees C. The fish showed a marked response to temperatures above 17 degrees C by residing at greater depths and by discontinuing the characteristic dive/surface residency pattern for prolonged periods of time during warm periods. Temperature data indicated that the fish were generally close to land in the beginning of the marine period and had migrated into open sea during summer. Our results suggest that Danish sea trout kelts aim to optimize their growth at sea by exhibiting a characteristic foraging pattern similar to that of Atlantic salmon and by seeking temperatures within the range reported as optimal for growth in the species. |
format |
Article in Journal/Newspaper |
author |
Kristensen, Martin Lykke Righton, David del Villar-Guerra, Diego Baktoft, Henrik Aarestrup, Kim |
author_facet |
Kristensen, Martin Lykke Righton, David del Villar-Guerra, Diego Baktoft, Henrik Aarestrup, Kim |
author_sort |
Kristensen, Martin Lykke |
title |
Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase |
title_short |
Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase |
title_full |
Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase |
title_fullStr |
Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase |
title_full_unstemmed |
Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase |
title_sort |
temperature and depth preferences of adult sea trout salmo trutta during the marine migration phase |
publishDate |
2018 |
url |
https://orbit.dtu.dk/en/publications/2b3767de-6569-4d83-a86c-a1c6c66e2838 https://doi.org/10.3354/meps12618 https://backend.orbit.dtu.dk/ws/files/160041404/Post_Print.docx https://backend.orbit.dtu.dk/ws/files/151913253/Publishers_version.pdf https://backend.orbit.dtu.dk/ws/files/151913255/Publishers_version_Supplementary_material.pdf |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Kristensen , M L , Righton , D , del Villar-Guerra , D , Baktoft , H & Aarestrup , K 2018 , ' Temperature and depth preferences of adult sea trout Salmo trutta during the marine migration phase ' , Marine Ecology - Progress Series , vol. 599 , pp. 209-224 . https://doi.org/10.3354/meps12618 |
op_relation |
https://orbit.dtu.dk/en/publications/2b3767de-6569-4d83-a86c-a1c6c66e2838 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps12618 |
container_title |
Marine Ecology Progress Series |
container_volume |
599 |
container_start_page |
209 |
op_container_end_page |
224 |
_version_ |
1798843514891534336 |