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SALINITY MAXIMUM INTRUSIONS WHAT THEY AREAND HOW THEY MAYIMPACT YOURFISHERYF u n d i n g w a s p r o v i d e d b y t h eN a t i o n a l S c i e n c e F o u n d a t i o nRESULTSCONCLUSION“Salinity maximumintrusions may besignificant in determininghow larval fish and squidmove onshorecontributing tocommercial fisheries”Gawarkiewicz et al (submitted)SALINITY MAXIMUMINSTRUSIONS ARE LIKELYASSOCIATED WITH OFFSHOREWARM CORE RINGSSchematic of warm core ring development inrelation to salinity maximum instrusions Silver et al. 2023 LARVAL FISH AND SQUID RIDEONSHORE WITHIN THE SALINITYMAXIMUM INSTRUSIONMonkfish from trawl in salinity maximumintrusion, 2022 F/V Dyrsten CruiseCatch from trawl in salinity maximum intrusion,2022 , F/V Dyrsten CruisePHOTO: NOELLE OLSENPHOTO: NOELLE OLSENPHOTO: NOELLE OLSEN

Se a su rf ac e te mp er at ur e (t op ) an d sa li ni ty(b ot to m) i ll us tr at in g th e mo ve me nt o f sa lt ywa rm w at er o ns ho re d ur in g Ju ne 2 02 1re se ar ch c ru is e (a rro ws indic ate wa te r d ire cti on an d v eloci ty)Gawa r k i ew i cz et al ( su b mi t te d )Recent warming on the continentalshelf and slope region of thenortheast U.S. raised concernsabout impacts on the ecosystemand commercial fisheries.Observations from a number ofsources including the Pioneer Array,the NMFS Ecosystem Monitoringsurveys, and the CommercialFisheries Research Foundation/WHOI Shelf Research Fleet observedwarm core ring water massestransported across the continentalshelf much further onshore in recentyears. This project studied oneparticular process, a salinitymaximum intrusion, whichtransports these warm, salty watermasses dozens of nautical milesshoreward.RESULTS Research Cruises: AUVs-REMUS 100 and Long Range AUVCreate a 3D map of intrusion andmeasure physical propertiesCTDsCollect conductivity, temperature,depth profiles each daySimrad EK80 Multi-frequency sonarHelp identify organisms from smallzooplankton up to squid and largefish that are found in these saltyintrusionsDATA COLLECTEDBACKGROUNDCFRF/WHOI Shelf Fleet:CTDsCollect conductivity (proxy for salinity),temperature, depth profilesMID-DEPTH SALINITY MAXIMUMINSTRUSIONS WERE MAPPED ANDFOUND SUBSTANTIALLY ONSHORECARRYING 5% OF THE TOTAL SALT INTHE SURROUNDING WATER ONSHOREWHAT IS A SALINITY MAXIMUM INSTRUSIONOcean processes with resulting mid-waterand bottom intrusions of warm salty water Deploying Long-Range AUV

Se a su rf ac e te mp er at ur e (t op ) an d sa li ni ty(b ot to m) i ll us tr at in g th e mo ve me nt o f sa lt ywa rm w at er o ns ho re d ur in g Ju ne 2 02 1re se ar ch c ru is e (a rro ws indic ate wa te r d ire cti on an d v eloci ty)Gawa r k i ew i cz et al ( su b mi t te d )Recent warming on the continentalshelf and slope region of thenortheast U.S. raised concernsabout impacts on the ecosystemand commercial fisheries.Observations from a number ofsources including the Pioneer Array,the NMFS Ecosystem Monitoringsurveys, and the CommercialFisheries Research Foundation/WHOI Shelf Research Fleet observedwarm core ring water massestransported across the continentalshelf much further onshore in recentyears. This project studied oneparticular process, a salinitymaximum intrusion, whichtransports these warm, salty watermasses dozens of nautical milesshoreward.RESULTS Research Cruises: AUVs-REMUS 100 and Long Range AUVCreate a 3D map of intrusion andmeasure physical propertiesCTDsCollect conductivity, temperature,depth profiles each daySimrad EK80 Multi-frequency sonarHelp identify organisms from smallzooplankton up to squid and largefish that are found in these saltyintrusionsDATA COLLECTEDBACKGROUNDCFRF/WHOI Shelf Fleet:CTDsCollect conductivity (proxy for salinity),temperature, depth profilesMID-DEPTH SALINITY MAXIMUMINSTRUSIONS WERE MAPPED ANDFOUND SUBSTANTIALLY ONSHORECARRYING 5% OF THE TOTAL SALT INTHE SURROUNDING WATER ONSHOREWHAT IS A SALINITY MAXIMUM INSTRUSIONOcean processes with resulting mid-waterand bottom intrusions of warm salty water Deploying Long-Range AUV

Se a su rf ac e te mp er at ur e (t op ) an d sa li ni ty(b ot to m) i ll us tr at in g th e mo ve me nt o f sa lt ywa rm w at er o ns ho re d ur in g Ju ne 2 02 1re se ar ch c ru is e (a rro ws indic ate wa te r d ire cti on an d v eloci ty)Gawa r k i ew i cz et al ( su b mi t te d )Recent warming on the continentalshelf and slope region of thenortheast U.S. raised concernsabout impacts on the ecosystemand commercial fisheries.Observations from a number ofsources including the Pioneer Array,the NMFS Ecosystem Monitoringsurveys, and the CommercialFisheries Research Foundation/WHOI Shelf Research Fleet observedwarm core ring water massestransported across the continentalshelf much further onshore in recentyears. This project studied oneparticular process, a salinitymaximum intrusion, whichtransports these warm, salty watermasses dozens of nautical milesshoreward.RESULTS Research Cruises: AUVs-REMUS 100 and Long Range AUVCreate a 3D map of intrusion andmeasure physical propertiesCTDsCollect conductivity, temperature,depth profiles each daySimrad EK80 Multi-frequency sonarHelp identify organisms from smallzooplankton up to squid and largefish that are found in these saltyintrusionsDATA COLLECTEDBACKGROUNDCFRF/WHOI Shelf Fleet:CTDsCollect conductivity (proxy for salinity),temperature, depth profilesMID-DEPTH SALINITY MAXIMUMINSTRUSIONS WERE MAPPED ANDFOUND SUBSTANTIALLY ONSHORECARRYING 5% OF THE TOTAL SALT INTHE SURROUNDING WATER ONSHOREWHAT IS A SALINITY MAXIMUM INSTRUSIONOcean processes with resulting mid-waterand bottom intrusions of warm salty water Deploying Long-Range AUV

SALINITY MAXIMUM INTRUSIONS WHAT THEY AREAND HOW THEY MAYIMPACT YOURFISHERYF u n d i n g w a s p r o v i d e d b y t h eN a t i o n a l S c i e n c e F o u n d a t i o nRESULTSCONCLUSION“Salinity maximumintrusions may besignificant in determininghow larval fish and squidmove onshorecontributing tocommercial fisheries”Gawarkiewicz et al (submitted)SALINITY MAXIMUMINSTRUSIONS ARE LIKELYASSOCIATED WITH OFFSHOREWARM CORE RINGSSchematic of warm core ring development inrelation to salinity maximum instrusions Silver et al. 2023 LARVAL FISH AND SQUID RIDEONSHORE WITHIN THE SALINITYMAXIMUM INSTRUSIONMonkfish from trawl in salinity maximumintrusion, 2022 F/V Dyrsten CruiseCatch from trawl in salinity maximum intrusion,2022 , F/V Dyrsten CruisePHOTO: NOELLE OLSENPHOTO: NOELLE OLSENPHOTO: NOELLE OLSEN

SALINITY MAXIMUM INTRUSIONS WHAT THEY AREAND HOW THEY MAYIMPACT YOURFISHERYF u n d i n g w a s p r o v i d e d b y t h eN a t i o n a l S c i e n c e F o u n d a t i o nRESULTSCONCLUSION“Salinity maximumintrusions may besignificant in determininghow larval fish and squidmove onshorecontributing tocommercial fisheries”Gawarkiewicz et al (submitted)SALINITY MAXIMUMINSTRUSIONS ARE LIKELYASSOCIATED WITH OFFSHOREWARM CORE RINGSSchematic of warm core ring development inrelation to salinity maximum instrusions Silver et al. 2023 LARVAL FISH AND SQUID RIDEONSHORE WITHIN THE SALINITYMAXIMUM INSTRUSIONMonkfish from trawl in salinity maximumintrusion, 2022 F/V Dyrsten CruiseCatch from trawl in salinity maximum intrusion,2022 , F/V Dyrsten CruisePHOTO: NOELLE OLSENPHOTO: NOELLE OLSENPHOTO: NOELLE OLSEN