Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord
We used acoustic telemetry to track age 1 juvenile Greenland cod Gadus ogac in Newman Sound, Newfoundland, from October 2010 to November 2012, in 2 consecutive 1 yr experiments. Using single (Year 1) and reciprocal (Year 2) transplant study designs, we investigated seasonal dispersal, home range are...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:85312 2023-07-02T03:32:18+02:00 Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord Shapiera, Melanie Gregory, Robert S. Morris, Corey J. Pennell, Curtis J. Snelgrove, Paul V. R. 2014-05-06T20:33:33.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-9g-fmma https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85312 unknown doi:10.5061/dryad.2f2b3/1 doi:10.5061/dryad.2f2b3/2 doi:10.3354/meps10729 doi:10.5061/dryad.2f2b3 http://nbn-resolving.org/urn:nbn:nl:ui:13-9g-fmma https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85312 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2014 ftdans https://doi.org/10.5061/dryad.2f2b3/110.5061/dryad.2f2b3/210.3354/meps1072910.5061/dryad.2f2b3 2023-06-13T13:12:20Z We used acoustic telemetry to track age 1 juvenile Greenland cod Gadus ogac in Newman Sound, Newfoundland, from October 2010 to November 2012, in 2 consecutive 1 yr experiments. Using single (Year 1) and reciprocal (Year 2) transplant study designs, we investigated seasonal dispersal, home range area, and potential homing behaviour between coves ~3.5 km apart. We tracked individuals moving at metre to kilometre scales, using a network of 26 to 32 hydrophones. We converted tag detections to position estimates in order to calculate seasonal home ranges and individual movement patterns. Home range increased significantly with season (pre-winter, winter, and post-winter) in both study years. Mean seasonal home range area ranged from 0.29 to 3.47 km2 in Year 1 and 0.43 to 1.72 km2 in Year 2. In contrast, fish size-at-capture, capture location, and release location had no significant effect on seasonal home range. Increased movement distance during the winter and post-winter season suggests a reduction in predation pressure on age 1 juveniles at these times, challenging previous assumptions about their vulnerability. We observed variable behaviour spanning residency to kilometre-scale dispersal movements, which represent greater distances than previously assumed. Similar proportions of control and transplant fish visited the other cove, indicating an absence of homing behaviour among dispersing individuals. Juveniles of marine fishes are often characterized as key life history transition stages between vulnerable larvae and older, larger individuals which are less susceptible to predators. Our results indicate that early juvenile life stages may be substantially more mobile than presupposed and contribute to population connectivity in temperate fishes in ways not well described previously. Other/Unknown Material Gadus ogac Greenland Greenland cod Newfoundland Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Greenland |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Shapiera, Melanie Gregory, Robert S. Morris, Corey J. Pennell, Curtis J. Snelgrove, Paul V. R. Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord |
topic_facet |
Life sciences medicine and health care |
description |
We used acoustic telemetry to track age 1 juvenile Greenland cod Gadus ogac in Newman Sound, Newfoundland, from October 2010 to November 2012, in 2 consecutive 1 yr experiments. Using single (Year 1) and reciprocal (Year 2) transplant study designs, we investigated seasonal dispersal, home range area, and potential homing behaviour between coves ~3.5 km apart. We tracked individuals moving at metre to kilometre scales, using a network of 26 to 32 hydrophones. We converted tag detections to position estimates in order to calculate seasonal home ranges and individual movement patterns. Home range increased significantly with season (pre-winter, winter, and post-winter) in both study years. Mean seasonal home range area ranged from 0.29 to 3.47 km2 in Year 1 and 0.43 to 1.72 km2 in Year 2. In contrast, fish size-at-capture, capture location, and release location had no significant effect on seasonal home range. Increased movement distance during the winter and post-winter season suggests a reduction in predation pressure on age 1 juveniles at these times, challenging previous assumptions about their vulnerability. We observed variable behaviour spanning residency to kilometre-scale dispersal movements, which represent greater distances than previously assumed. Similar proportions of control and transplant fish visited the other cove, indicating an absence of homing behaviour among dispersing individuals. Juveniles of marine fishes are often characterized as key life history transition stages between vulnerable larvae and older, larger individuals which are less susceptible to predators. Our results indicate that early juvenile life stages may be substantially more mobile than presupposed and contribute to population connectivity in temperate fishes in ways not well described previously. |
author |
Shapiera, Melanie Gregory, Robert S. Morris, Corey J. Pennell, Curtis J. Snelgrove, Paul V. R. |
author_facet |
Shapiera, Melanie Gregory, Robert S. Morris, Corey J. Pennell, Curtis J. Snelgrove, Paul V. R. |
author_sort |
Shapiera, Melanie |
title |
Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord |
title_short |
Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord |
title_full |
Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord |
title_fullStr |
Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord |
title_full_unstemmed |
Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord |
title_sort |
data from: season and site fidelity determine home range of dispersing and resident juvenile greenland cod (gadus ogac) in a newfoundland fjord |
publishDate |
2014 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-9g-fmma https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85312 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Gadus ogac Greenland Greenland cod Newfoundland |
genre_facet |
Gadus ogac Greenland Greenland cod Newfoundland |
op_relation |
doi:10.5061/dryad.2f2b3/1 doi:10.5061/dryad.2f2b3/2 doi:10.3354/meps10729 doi:10.5061/dryad.2f2b3 http://nbn-resolving.org/urn:nbn:nl:ui:13-9g-fmma https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:85312 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.2f2b3/110.5061/dryad.2f2b3/210.3354/meps1072910.5061/dryad.2f2b3 |
_version_ |
1770271839630655488 |