Diel Variations in Survey Catch Rates and Survey Catchability of Spiny Dogfish and their Pelagic Prey in the Northeast US Continental Shelf Large Marine Ecosystem
This study examines the potential uncertainty in survey biomass estimates of Spiny Dogfish Squalus acanthias in the Northeast U.S. Continental Shelf Large Marine Ecosystem (NES LME). Diel catch-per-unit-effort (CPUE) estimates are examined from the Northeast Fisheries Science Center bottom trawl sur...
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2016
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Online Access: | https://scholarworks.wm.edu/vimsarticles/36 https://scholarworks.wm.edu/context/vimsarticles/article/1035/viewcontent/Diel_Variations_in_Survey_Catch_Rates_and_Survey_Catchability_of_Spiny_Dogfish_and_their_Pelagic_Prey_in_the_Northeast_U_S_Continental_Shelf_Large.pdf |
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ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1035 2024-06-23T07:55:41+00:00 Diel Variations in Survey Catch Rates and Survey Catchability of Spiny Dogfish and their Pelagic Prey in the Northeast US Continental Shelf Large Marine Ecosystem Sagarese, Skyler R. Frisk, Michael G. Cerrato, Robert M. Sosebee, Kathy A. Musick, John A. 2016-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/36 doi: 10.1080/19425120.2015.1135219 https://scholarworks.wm.edu/context/vimsarticles/article/1035/viewcontent/Diel_Variations_in_Survey_Catch_Rates_and_Survey_Catchability_of_Spiny_Dogfish_and_their_Pelagic_Prey_in_the_Northeast_U_S_Continental_Shelf_Large.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/36 doi: 10.1080/19425120.2015.1135219 https://scholarworks.wm.edu/context/vimsarticles/article/1035/viewcontent/Diel_Variations_in_Survey_Catch_Rates_and_Survey_Catchability_of_Spiny_Dogfish_and_their_Pelagic_Prey_in_the_Northeast_U_S_Continental_Shelf_Large.pdf http://creativecommons.org/licenses/by/4.0/ VIMS Articles GENERALIZED ADDITIVE-MODELS BOTTOM-TRAWL SURVEYS GEORGES-BANK DIURNAL-VARIATION VERTICAL MIGRATION NORTHWEST ATLANTIC SQUALUS-ACANTHIAS FISH COMMUNITY ABUNDANCE Fisheries Science Peer-Reviewed Articles Marine Biology text 2016 ftwilliammarycol https://doi.org/10.1080/19425120.2015.1135219 2024-06-05T03:29:28Z This study examines the potential uncertainty in survey biomass estimates of Spiny Dogfish Squalus acanthias in the Northeast U.S. Continental Shelf Large Marine Ecosystem (NES LME). Diel catch-per-unit-effort (CPUE) estimates are examined from the Northeast Fisheries Science Center bottom trawl surveys conducted during autumn (1963-2009) and spring (1968-2009). Influential environmental variables on survey catchability are identified for Spiny Dogfish life history stages and five pelagic prey species: Butterfish Peprilus triacanthus, Atlantic Herring Clupea harengus, shortfin squid Illex spp., longfin squid Doryteuthis spp., and Atlantic Mackerel Scomber scombrus. Daytime survey catchability was significantly higher than nighttime catchability for most species during autumn and for mature male Spiny Dogfish, shortfin squid, and longfin squid during spring in the NES LME. For most stages and species examined, breakpoint analyses identified significant increases in CPUE in the morning, peak CPUE during the day, and significant declines in CPUE in the late afternoon. Seasonal probabilities of daytime catch were largely driven by solar zenith angle for most species, with stronger trends identified during autumn. Unadjusted CPUE estimates appear to overestimate absolute abundance, with adjustments resulting in reductions in absolute abundance ranging from 41% for Spiny Dogfish to 91% for shortfin and longfin squids. These findings have important implications for Spiny Dogfish regarding estimates of population consumption of key pelagic prey species and their ecological footprint within the NES LME. Text Northwest Atlantic spiny dogfish Squalus acanthias W&M ScholarWorks Nes ENVELOPE(7.634,7.634,62.795,62.795) Nes’ ENVELOPE(44.681,44.681,66.600,66.600) Marine and Coastal Fisheries 8 1 244 262 |
institution |
Open Polar |
collection |
W&M ScholarWorks |
op_collection_id |
ftwilliammarycol |
language |
unknown |
topic |
GENERALIZED ADDITIVE-MODELS BOTTOM-TRAWL SURVEYS GEORGES-BANK DIURNAL-VARIATION VERTICAL MIGRATION NORTHWEST ATLANTIC SQUALUS-ACANTHIAS FISH COMMUNITY ABUNDANCE Fisheries Science Peer-Reviewed Articles Marine Biology |
spellingShingle |
GENERALIZED ADDITIVE-MODELS BOTTOM-TRAWL SURVEYS GEORGES-BANK DIURNAL-VARIATION VERTICAL MIGRATION NORTHWEST ATLANTIC SQUALUS-ACANTHIAS FISH COMMUNITY ABUNDANCE Fisheries Science Peer-Reviewed Articles Marine Biology Sagarese, Skyler R. Frisk, Michael G. Cerrato, Robert M. Sosebee, Kathy A. Musick, John A. Diel Variations in Survey Catch Rates and Survey Catchability of Spiny Dogfish and their Pelagic Prey in the Northeast US Continental Shelf Large Marine Ecosystem |
topic_facet |
GENERALIZED ADDITIVE-MODELS BOTTOM-TRAWL SURVEYS GEORGES-BANK DIURNAL-VARIATION VERTICAL MIGRATION NORTHWEST ATLANTIC SQUALUS-ACANTHIAS FISH COMMUNITY ABUNDANCE Fisheries Science Peer-Reviewed Articles Marine Biology |
description |
This study examines the potential uncertainty in survey biomass estimates of Spiny Dogfish Squalus acanthias in the Northeast U.S. Continental Shelf Large Marine Ecosystem (NES LME). Diel catch-per-unit-effort (CPUE) estimates are examined from the Northeast Fisheries Science Center bottom trawl surveys conducted during autumn (1963-2009) and spring (1968-2009). Influential environmental variables on survey catchability are identified for Spiny Dogfish life history stages and five pelagic prey species: Butterfish Peprilus triacanthus, Atlantic Herring Clupea harengus, shortfin squid Illex spp., longfin squid Doryteuthis spp., and Atlantic Mackerel Scomber scombrus. Daytime survey catchability was significantly higher than nighttime catchability for most species during autumn and for mature male Spiny Dogfish, shortfin squid, and longfin squid during spring in the NES LME. For most stages and species examined, breakpoint analyses identified significant increases in CPUE in the morning, peak CPUE during the day, and significant declines in CPUE in the late afternoon. Seasonal probabilities of daytime catch were largely driven by solar zenith angle for most species, with stronger trends identified during autumn. Unadjusted CPUE estimates appear to overestimate absolute abundance, with adjustments resulting in reductions in absolute abundance ranging from 41% for Spiny Dogfish to 91% for shortfin and longfin squids. These findings have important implications for Spiny Dogfish regarding estimates of population consumption of key pelagic prey species and their ecological footprint within the NES LME. |
format |
Text |
author |
Sagarese, Skyler R. Frisk, Michael G. Cerrato, Robert M. Sosebee, Kathy A. Musick, John A. |
author_facet |
Sagarese, Skyler R. Frisk, Michael G. Cerrato, Robert M. Sosebee, Kathy A. Musick, John A. |
author_sort |
Sagarese, Skyler R. |
title |
Diel Variations in Survey Catch Rates and Survey Catchability of Spiny Dogfish and their Pelagic Prey in the Northeast US Continental Shelf Large Marine Ecosystem |
title_short |
Diel Variations in Survey Catch Rates and Survey Catchability of Spiny Dogfish and their Pelagic Prey in the Northeast US Continental Shelf Large Marine Ecosystem |
title_full |
Diel Variations in Survey Catch Rates and Survey Catchability of Spiny Dogfish and their Pelagic Prey in the Northeast US Continental Shelf Large Marine Ecosystem |
title_fullStr |
Diel Variations in Survey Catch Rates and Survey Catchability of Spiny Dogfish and their Pelagic Prey in the Northeast US Continental Shelf Large Marine Ecosystem |
title_full_unstemmed |
Diel Variations in Survey Catch Rates and Survey Catchability of Spiny Dogfish and their Pelagic Prey in the Northeast US Continental Shelf Large Marine Ecosystem |
title_sort |
diel variations in survey catch rates and survey catchability of spiny dogfish and their pelagic prey in the northeast us continental shelf large marine ecosystem |
publisher |
W&M ScholarWorks |
publishDate |
2016 |
url |
https://scholarworks.wm.edu/vimsarticles/36 https://scholarworks.wm.edu/context/vimsarticles/article/1035/viewcontent/Diel_Variations_in_Survey_Catch_Rates_and_Survey_Catchability_of_Spiny_Dogfish_and_their_Pelagic_Prey_in_the_Northeast_U_S_Continental_Shelf_Large.pdf |
long_lat |
ENVELOPE(7.634,7.634,62.795,62.795) ENVELOPE(44.681,44.681,66.600,66.600) |
geographic |
Nes Nes’ |
geographic_facet |
Nes Nes’ |
genre |
Northwest Atlantic spiny dogfish Squalus acanthias |
genre_facet |
Northwest Atlantic spiny dogfish Squalus acanthias |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/36 doi: 10.1080/19425120.2015.1135219 https://scholarworks.wm.edu/context/vimsarticles/article/1035/viewcontent/Diel_Variations_in_Survey_Catch_Rates_and_Survey_Catchability_of_Spiny_Dogfish_and_their_Pelagic_Prey_in_the_Northeast_U_S_Continental_Shelf_Large.pdf |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1080/19425120.2015.1135219 |
container_title |
Marine and Coastal Fisheries |
container_volume |
8 |
container_issue |
1 |
container_start_page |
244 |
op_container_end_page |
262 |
_version_ |
1802648350253645824 |