{"datasetrec":{"DasID":4853,"Acronym":null,"StandardTitle":"SWFSC juvenile loggerhead sea turtle tracking 2002-2005","OrigTitle":null,"OrigTitleLangID":null,"OrigTitleLangCode":null,"OrigTitleLang":null,"OrigTitleLangNL":null,"VersionName":null,"ContactEmail":null,"VersionDate":null,"VersionDay":null,"VersionMonth":null,"VersionYear":null,"SizeReference":null,"EngAbstract":"Satellite telemetry data from 17 juvenile loggerhead turtles (43.5-66.5 cm straight carapace length) were used in conjunction with oceanographic data to analyze the influence of regional and seasonal oceanography on dive behavior in the North Pacific Ocean.\r\n
\r\nThese results will aid in our understanding of juvenile loggerhead dive behavior during their oceanic phase. An increased understanding of potential effects of oceanography on loggerhead dive behavior should assist in future conservation and bycatch studies working toward the reduction of loggerheads by longline fisheries in the North Pacific.","EngDescr":"Combined dive behavior for all individuals showed that turtles spent more than 80% of their time at 0-5 m depths, and more than 90% of their time at 0-15 m depths. Multivariate classifications of dive data revealed four major dive types, three representing deeper, longer dives, and one representing shallower dives shorter in duration. Turtles exhibited variability in these dive types across oceanographic regions, with deeper, longer dives in the Hawaii longline swordfish fishing grounds during the first quarter of the year, as well as in the Kuroshio Extension Bifurcation Region and the region near the Baja California Peninsula, Mexico. Turtles in the Kuroshio Extension Bifurcation Region also exhibited dive variability associated with mesoscale eddy features, with turtles making deeper, longer dives while associated with the strongest total kinetic energy. Turtles in the central North Pacific exhibited seasonality in dive behavior that appeared to reflect synchronous latitudinal movements with the North Pacific Subtropical Front and the associated seasonal, large-scale oceanography. Turtles made deeper, longer dives during the first quarter of the year within this region, the reported time and area where the highest loggerhead bycatch occurs by the longline fishery. These results represent the first comprehensive study of dive data for this species in this region. The increased understanding of juvenile loggerhead dive behavior and the influences of oceanography on dive variability should provide further insight into why interactions with longline fisheries occur and suggest methods for reducing the bycatch of this threatened species.","OrigAbstract":null,"OrigDescr":null,"Comments":null,"ReleaseDate":null,"ReleaseDate0":null,"OrigDescrLang":null,"EmbargoDate":null,"OrigDescrLangNL":null,"OrigLangCode":null,"OrigLangCodeExtended":null,"OrigLangID":null,"DescrCompFlag":0,"DescrTransFlag":0,"Citation":"Howell, E.A., P.H. Dutton, J.J. Polovina, H. Bailey, D.M. Parker and G.H. Balazs. 2010. Oceanographic influences on the dive behavior of juvenile loggerhead turtles (Caretta caretta) in the North Pacific Ocean. Marine Biology. 157:1011-1026","AccessConstraints":"Only data aggregated per 1-degree cell are available through OBIS. The non-aggregated data are available through the OBIS-SEAMAP Portal","UDate":"2015-03-24","CDate":"2015-03-24","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-05-30 01:37:59.451226","timezone_type":1,"timezone":"+02:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Research: field survey","Progress":"Completed","AccessConstraint":"Attribution-NonCommercial (CC BY-NC)","AccConstrEN":"Attribution-NonCommercial (CC BY-NC)","AccConstrDisplay":"\"Creative This dataset is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.","License":"https://creativecommons.org/licenses/by-nc/4.0","AccConstrDescription":"This license lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don’t have to license their derivative works on the same terms","Lineage":null,"AccConID":24},"dois":null,"spcols":null,"keywords":[{"ThesaurusTerm":"AE, North Atlantic","ThesTypID":34,"ThesType":"ASFA Geoterms","Code":null,"Description":null,"OrigThesTerm":"AE, North Atlantic","DutchTerm":null,"URI":null,"DasKeywordDescr":null}],"parents":null,"children":null,"othrel":null,"othrelrev":[{"DasID":1865,"Acronym":"OBIS-SEAMAP","StandardTitle":"Spatial Ecological Analysis of Megavertebrate Populations","Relation":"Published dataset","RelationY":"Published in","RelID":13,"doi":null,"vlizDoi":null}],"ownerships":[{"OrderNr":1,"Surname":"Howell","Firstname":"Evan","Initials":"E.A.","PerPublicFlag":1,"AdrID":157933,"Email":"Evan.Howell@noaa.gov","InsPublicFlag":1,"Acronym":"NOAA","OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":2,"PersID":31158,"InsID":4412,"FullInstitute":"National Oceanic and Atmospheric Administration","RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":"National Oceanic and Atmospheric Administration","FullAcronym":"NOAA","ORC":null,"ROR":null},{"OrderNr":2,"Surname":"Dutton","Firstname":"Peter","Initials":"P.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":1,"Acronym":"NOAA","OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":2,"PersID":26806,"InsID":4412,"FullInstitute":"National Oceanic and Atmospheric Administration","RoleID":24,"Role":"Contact","OrigName":null,"StandardName":"National Oceanic and Atmospheric Administration","FullAcronym":"NOAA","ORC":null,"ROR":null},{"OrderNr":4,"Surname":"Balazs","Firstname":"George","Initials":"G.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":1,"Acronym":"PIFSC","OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":1,"PersID":27542,"InsID":12350,"FullInstitute":"Federal Government of the United States of America; Department of Commerce; National Oceanic and Atmospheric Administration; National Marine Fisheries Service; Pacific Islands Fisheries Science Center","RoleID":24,"Role":"Contact","OrigName":null,"StandardName":"Pacific Islands Fisheries Science Center","FullAcronym":"NOAA-PIFSC","ORC":null,"ROR":null}],"taxterms":[{"DasTaxtTypID":1,"DasTaxtType":"Taxonomic coverage","TaxtID":23380,"TaxTerm":"Caretta caretta (Linnaeus, 1758)","AphiaID":137205,"DutchTerm":null}],"frameworks":null,"otherterms":null,"temporal":[{"DasDateID":3680,"StartYear":2002,"EndYear":2005,"StartDay":14,"EndDay":7,"StartDate":"2002-10-14","EndDate":"2005-07-07","DasDate":null,"Resolution":null,"ResolutionNL":null,"Notes":null,"StartMonth0":10,"StartMonth":"October","StartMonthNL":"Oktober","EndMonth0":7,"EndMonth":"July","EndMonthNL":"Juli","Progress":"Completed","ProgressNL":"Afgelopen"}],"geographical":[{"GeoTerm":"North Atlantic Ocean","DasGeoID":7465,"DasGeoTerm":null,"DasID":4853,"GeotID":12,"X":null,"Y":null,"MaxX":null,"MaxY":null,"StationName":null,"Precision":null,"CoordSystID":null,"GeoDatumID":null,"OrigCoordMinX":null,"OrigCoordMinY":null,"OrigCoordMaxX":null,"OrigCoordMaxY":null,"OrderNr":null,"Projection":null,"GeoDatum":null,"GeoObjectID":1912,"OrigGeoTerm":"North Atlantic Ocean","DutchTerm":"Noord Atlantisch"}],"meastypes":[{"MethID":null,"DasMeasTypID":9474,"DasMeasType":"","Matrix":null,"MatrixNL":null,"Parameter":"Occurrence of biota","ParameterNL":"Voorkomen van soorten","Description":null,"Unit":null,"Methodology":null,"Protocol":null,"QualityControl":null,"Precision":null,"Detectionlimit":null,"Instrument":null,"InstrumentUrl":null,"MethFull":"","ParaCategoryTitle":null,"ParaCatCode":null}],"dasthemes":[{"DasThemeID":71,"DasTheme":"Biology > Reptiles","DasTheme0":"Reptiles","DutchTerm":"Reptielen"}],"projects":null,"refs":[{"0":248438,"BRefID":248438,"1":"Based on this dataset","Relation":"Based on this dataset","2":2,"RelationID":2,"3":"Howell, E.A. et al. (2010). Oceanographic influences on the dive behavior of juvenile loggerhead turtles (Caretta caretta) in the North Pacific Ocean. Mar. Biol. (Berl.) 157(5): 1011-1026. https://dx.doi.org/10.1007/s00227-009-1381-0","RR":"Howell, E.A. et al. (2010). Oceanographic influences on the dive behavior of juvenile loggerhead turtles (Caretta caretta) in the North Pacific Ocean. Mar. Biol. 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