Characterization of Atlantic cod spawning habitat and behavior in Icelandic coastal waters.
The physical habitat used during spawning may potentially be an important factor affecting reproductive output of broadcast spawning marine fishes, particularly for species with complex, substrate-oriented mating systems and behaviors, such as Atlantic cod Gadus morhua. We characterized the habitat...
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ftdoajarticles:oai:doaj.org/article:0bf063d023ee43c3842561d29ad075ca 2023-05-15T15:26:42+02:00 Characterization of Atlantic cod spawning habitat and behavior in Icelandic coastal waters. Timothy B Grabowski Kevin M Boswell Bruce J McAdam R J David Wells Guđrún Marteinsdóttir 2012-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0051321 https://doaj.org/article/0bf063d023ee43c3842561d29ad075ca EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3517460?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0051321 https://doaj.org/article/0bf063d023ee43c3842561d29ad075ca PLoS ONE, Vol 7, Iss 12, p e51321 (2012) Medicine R Science Q article 2012 ftdoajarticles https://doi.org/10.1371/journal.pone.0051321 2022-12-31T12:12:34Z The physical habitat used during spawning may potentially be an important factor affecting reproductive output of broadcast spawning marine fishes, particularly for species with complex, substrate-oriented mating systems and behaviors, such as Atlantic cod Gadus morhua. We characterized the habitat use and behavior of spawning Atlantic cod at two locations off the coast of southwestern Iceland during a 2-d research cruise (15-16 April 2009). We simultaneously operated two different active hydroacoustic gear types, a split beam echosounder and a dual frequency imaging sonar (DIDSON), as well as a remotely operated underwater vehicle (ROV). A total of five fish species were identified through ROV surveys: including cusk Brosme brosme, Atlantic cod, haddock Melanogrammus aeglefinus, lemon sole Microstomus kitt, and Atlantic redfish Sebastes spp. Of the three habitats identified in the acoustic surveys, the transitional habitat between boulder/lava field and sand habitats was characterized by greater fish density and acoustic target strength compared to that of sand or boulder/lava field habitats independently. Atlantic cod were observed behaving in a manner consistent with published descriptions of spawning. Individuals were observed ascending 1-5 m into the water column from the bottom at an average vertical swimming speed of 0.20-0.25 m s(-1) and maintained an average spacing of 1.0-1.4 m between individuals. Our results suggest that cod do not choose spawning locations indiscriminately despite the fact that it is a broadcast spawning fish with planktonic eggs that are released well above the seafloor. Article in Journal/Newspaper atlantic cod Atlantic redfish Gadus morhua Iceland Directory of Open Access Journals: DOAJ Articles PLoS ONE 7 12 e51321 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Timothy B Grabowski Kevin M Boswell Bruce J McAdam R J David Wells Guđrún Marteinsdóttir Characterization of Atlantic cod spawning habitat and behavior in Icelandic coastal waters. |
topic_facet |
Medicine R Science Q |
description |
The physical habitat used during spawning may potentially be an important factor affecting reproductive output of broadcast spawning marine fishes, particularly for species with complex, substrate-oriented mating systems and behaviors, such as Atlantic cod Gadus morhua. We characterized the habitat use and behavior of spawning Atlantic cod at two locations off the coast of southwestern Iceland during a 2-d research cruise (15-16 April 2009). We simultaneously operated two different active hydroacoustic gear types, a split beam echosounder and a dual frequency imaging sonar (DIDSON), as well as a remotely operated underwater vehicle (ROV). A total of five fish species were identified through ROV surveys: including cusk Brosme brosme, Atlantic cod, haddock Melanogrammus aeglefinus, lemon sole Microstomus kitt, and Atlantic redfish Sebastes spp. Of the three habitats identified in the acoustic surveys, the transitional habitat between boulder/lava field and sand habitats was characterized by greater fish density and acoustic target strength compared to that of sand or boulder/lava field habitats independently. Atlantic cod were observed behaving in a manner consistent with published descriptions of spawning. Individuals were observed ascending 1-5 m into the water column from the bottom at an average vertical swimming speed of 0.20-0.25 m s(-1) and maintained an average spacing of 1.0-1.4 m between individuals. Our results suggest that cod do not choose spawning locations indiscriminately despite the fact that it is a broadcast spawning fish with planktonic eggs that are released well above the seafloor. |
format |
Article in Journal/Newspaper |
author |
Timothy B Grabowski Kevin M Boswell Bruce J McAdam R J David Wells Guđrún Marteinsdóttir |
author_facet |
Timothy B Grabowski Kevin M Boswell Bruce J McAdam R J David Wells Guđrún Marteinsdóttir |
author_sort |
Timothy B Grabowski |
title |
Characterization of Atlantic cod spawning habitat and behavior in Icelandic coastal waters. |
title_short |
Characterization of Atlantic cod spawning habitat and behavior in Icelandic coastal waters. |
title_full |
Characterization of Atlantic cod spawning habitat and behavior in Icelandic coastal waters. |
title_fullStr |
Characterization of Atlantic cod spawning habitat and behavior in Icelandic coastal waters. |
title_full_unstemmed |
Characterization of Atlantic cod spawning habitat and behavior in Icelandic coastal waters. |
title_sort |
characterization of atlantic cod spawning habitat and behavior in icelandic coastal waters. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2012 |
url |
https://doi.org/10.1371/journal.pone.0051321 https://doaj.org/article/0bf063d023ee43c3842561d29ad075ca |
genre |
atlantic cod Atlantic redfish Gadus morhua Iceland |
genre_facet |
atlantic cod Atlantic redfish Gadus morhua Iceland |
op_source |
PLoS ONE, Vol 7, Iss 12, p e51321 (2012) |
op_relation |
http://europepmc.org/articles/PMC3517460?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0051321 https://doaj.org/article/0bf063d023ee43c3842561d29ad075ca |
op_doi |
https://doi.org/10.1371/journal.pone.0051321 |
container_title |
PLoS ONE |
container_volume |
7 |
container_issue |
12 |
container_start_page |
e51321 |
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