Title: Movements and behaviors of swordfish in the Atlantic and Pacific Oceans examined using pop-up satellite archival tags
Abstract: Fisheries OceanographyVolume 20, Issue 3 p. 219-241 Movements and behaviors of swordfish in the Atlantic and Pacific Oceans examined using pop-up satellite archival tags HEIDI DEWAR, Corresponding Author HEIDI DEWAR National Marine Fisheries Service, Southwest Fisheries Science Center, 8604 La Jolla Shore Dr., La Jolla, CA 92037, USA e-mail: [email protected]Search for more papers by this authorERIC D. PRINCE, ERIC D. PRINCE National Marine Fisheries Service, Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USASearch for more papers by this authorMICHAEL K. MUSYL, MICHAEL K. MUSYL University of Hawaii, Joint Institute Marine and Atmospheric Research, Kewalo Research Facility/NOAA, 1125B Ala Moana Boulevard, Honolulu, HI 96814, USASearch for more papers by this authorRICHARD W. BRILL, RICHARD W. BRILL National Marine Fisheries Service, Northeast Fisheries Science Center, 166 Water Street, Woods Hole, MA 02543, U.S.ASearch for more papers by this authorCHUGEY SEPULVEDA, CHUGEY SEPULVEDA Pfleger Institute of Environmental Research, 315 North Clementine Street, Oceanside, CA 92054 USASearch for more papers by this authorJIANGANG LUO, JIANGANG LUO University of Miami, RSMAS, 4600 Rickenbacker Causeway, Miami, FL 33149, USASearch for more papers by this authorDAVID FOLEY, DAVID FOLEY University of Hawaii, Joint Institute Marine and Atmospheric Research, NOAA Fisheries Environmental Research Division, Pacific Grove, CA 93950 USASearch for more papers by this authorERIC S. ORBESEN, ERIC S. ORBESEN National Marine Fisheries Service, Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USASearch for more papers by this authorMICHAEL L. DOMEIER, MICHAEL L. DOMEIER Pfleger Institute of Environmental Research, 315 North Clementine Street, Oceanside, CA 92054 USA Present address: Marine Conservation Science Institute, Offield Center for Billfish Studies, 2809 South Mission Road, Suite G, Fallbrook, CA 92028, USA.Search for more papers by this authorNICOLE NASBY-LUCAS, NICOLE NASBY-LUCAS Pfleger Institute of Environmental Research, 315 North Clementine Street, Oceanside, CA 92054 USA Present address: Marine Conservation Science Institute, Offield Center for Billfish Studies, 2809 South Mission Road, Suite G, Fallbrook, CA 92028, USA.Search for more papers by this authorDERKE SNODGRASS, DERKE SNODGRASS National Marine Fisheries Service, Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USASearch for more papers by this authorR. MICHAEL LAURS, R. MICHAEL LAURS Fisheries Oceanographer Consultant, LLC, Jacksonville, OR 97530, USASearch for more papers by this authorJOHN P. HOOLIHAN, JOHN P. HOOLIHAN National Marine Fisheries Service, Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USASearch for more papers by this authorBARBARA A. BLOCK, BARBARA A. BLOCK Tuna Research and Conservation Center, Hopkins Marine Station, Stanford University, Oceanview Blvd, Pacific Grove, CA 92950, USASearch for more papers by this authorLIANNE M. MCNAUGHTON, LIANNE M. MCNAUGHTON University of Hawaii, Joint Institute Marine and Atmospheric Research, Kewalo Research Facility/NOAA, 1125B Ala Moana Boulevard, Honolulu, HI 96814, USASearch for more papers by this author HEIDI DEWAR, Corresponding Author HEIDI DEWAR National Marine Fisheries Service, Southwest Fisheries Science Center, 8604 La Jolla Shore Dr., La Jolla, CA 92037, USA e-mail: [email protected]Search for more papers by this authorERIC D. PRINCE, ERIC D. PRINCE National Marine Fisheries Service, Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USASearch for more papers by this authorMICHAEL K. MUSYL, MICHAEL K. MUSYL University of Hawaii, Joint Institute Marine and Atmospheric Research, Kewalo Research Facility/NOAA, 1125B Ala Moana Boulevard, Honolulu, HI 96814, USASearch for more papers by this authorRICHARD W. BRILL, RICHARD W. BRILL National Marine Fisheries Service, Northeast Fisheries Science Center, 166 Water Street, Woods Hole, MA 02543, U.S.ASearch for more papers by this authorCHUGEY SEPULVEDA, CHUGEY SEPULVEDA Pfleger Institute of Environmental Research, 315 North Clementine Street, Oceanside, CA 92054 USASearch for more papers by this authorJIANGANG LUO, JIANGANG LUO University of Miami, RSMAS, 4600 Rickenbacker Causeway, Miami, FL 33149, USASearch for more papers by this authorDAVID FOLEY, DAVID FOLEY University of Hawaii, Joint Institute Marine and Atmospheric Research, NOAA Fisheries Environmental Research Division, Pacific Grove, CA 93950 USASearch for more papers by this authorERIC S. ORBESEN, ERIC S. ORBESEN National Marine Fisheries Service, Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USASearch for more papers by this authorMICHAEL L. DOMEIER, MICHAEL L. DOMEIER Pfleger Institute of Environmental Research, 315 North Clementine Street, Oceanside, CA 92054 USA Present address: Marine Conservation Science Institute, Offield Center for Billfish Studies, 2809 South Mission Road, Suite G, Fallbrook, CA 92028, USA.Search for more papers by this authorNICOLE NASBY-LUCAS, NICOLE NASBY-LUCAS Pfleger Institute of Environmental Research, 315 North Clementine Street, Oceanside, CA 92054 USA Present address: Marine Conservation Science Institute, Offield Center for Billfish Studies, 2809 South Mission Road, Suite G, Fallbrook, CA 92028, USA.Search for more papers by this authorDERKE SNODGRASS, DERKE SNODGRASS National Marine Fisheries Service, Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USASearch for more papers by this authorR. MICHAEL LAURS, R. MICHAEL LAURS Fisheries Oceanographer Consultant, LLC, Jacksonville, OR 97530, USASearch for more papers by this authorJOHN P. HOOLIHAN, JOHN P. HOOLIHAN National Marine Fisheries Service, Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USASearch for more papers by this authorBARBARA A. BLOCK, BARBARA A. BLOCK Tuna Research and Conservation Center, Hopkins Marine Station, Stanford University, Oceanview Blvd, Pacific Grove, CA 92950, USASearch for more papers by this authorLIANNE M. MCNAUGHTON, LIANNE M. MCNAUGHTON University of Hawaii, Joint Institute Marine and Atmospheric Research, Kewalo Research Facility/NOAA, 1125B Ala Moana Boulevard, Honolulu, HI 96814, USASearch for more papers by this author First published: 07 April 2011 https://doi.org/10.1111/j.1365-2419.2011.00581.xCitations: 85 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract Swordfish are highly specialized top-level predators that have been challenging to study. In this paper, data from 31 pop-up satellite archival tags attached to swordfish from (i) the eastern Pacific, (ii) central Pacific, and (iii) western North Atlantic-Caribbean were analyzed. Common across locations was a pronounced diel vertical pattern with daytime hours spent primarily below the thermocline and nighttime hours spent in warmer waters, close to the surface. One exception to this pattern was periodic daytime basking events which were most common in cooler waters off California. Maximum daytime depths were significantly correlated with light penetration as measured by the diffuse attenuation coefficient at 490 nm. Temperature did not appear to influence daytime depths, and swordfish tolerated both extremely low temperatures (4°C) and rapid and dramatic temperature changes (>20°C). Temperature did appear to influence the nighttime depths in the Pacific where fish typically remained in the surface mixed layer. In contrast, in the warm tropical Atlantic this was not the case, and nighttime depths were much deeper. In all areas, nighttime depth increased around the full moon. Given the parallels between the vertical movement patterns of swordfish and those of the deep sound scattering layer we suggest that swordfish vertical distribution patterns, especially during daytime, are influenced largely by resource availability. At night, when swordfish are typically targeted by fisheries, both ambient light and temperature influence movements. Understanding vertical movement patterns of swordfish can help evaluate gear vulnerability, improve population assessments, and potentially reduce fisheries bycatch. Citing Literature Volume20, Issue3May 2011Pages 219-241 RelatedInformation
Publication Year: 2011
Publication Date: 2011-04-07
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 111
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