20968 BFISH Gear Comparison Study Project Published / External 8064 Stock Assessment Program Project Completed Accurate and precise stock assessments are predicated on accurate and precise estimates of life history parameters, abundance, and catch across the range of the stock. NOAA Fisheries is increasingly looking to advanced fishery-independent survey methods to estimate stock abundance and many authors have highlighted the continued need for development of non-intrusive methods that can be used in areas both open and closed to fishing, as well as for stocks where extractive sampling may remove a significant portion of the yearly quota. While it is commonly agreed that a combination of survey methods is preferable to any single method, in order to be used effectively and efficiently, such methods must be quantitatively evaluated and compared. The development of adequate calibration factors allows pooling of data from disparate methods to generate robust metrics of abundance. In this study, we quantitatively compare a suite of autonomous optical, acoustic, and cooperative research fishery-independent sampling methods for estimating species-specific size-structured abundance for six snapper species and one grouper species, which comprise the major insular commercial bottomfish fishery in the Main Hawaiian Islands (known as the Deep 7 bottomfish complex). This comparison serves as the basis for an operational, fishery-independent survey for stock assessment in the Main Hawaiian Islands. To quantitatively compare a suite of advanced fishery-independent sampling methods to generate species-specific size-structured abundance estimates of insular bottomfish for use in stock assessment. Theme Deep-7 bottomfish Theme FRMD Theme PIFSC Theme SAP Theme advanced technology Theme bottomfish Theme fishery-independent Theme methods comparison Theme sampling methods Theme stock assessment Spatial Kahoolawe Spatial Lanai Spatial Main Hawaiian Islands Spatial Maui Pacific Islands Fisheries Science Center Honolulu HI USA Metadata Contact 2011 Person Richards, Benjamin L benjamin.richards@noaa.gov https://orcid.org/0000-0001-9907-6221 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5320 Email or phone (808-983-5320) Originator 2011 Organization Pacific Islands Fisheries Science Center PIFSC pifsc.info@noaa.gov https://ror.org/02apffz65 1845 Wasp Blvd. Honolulu HI 96818 USA 808-725-5360 https://www.pifsc.noaa.gov Pacific Island Fisheries Science Center homepage Online Resource 8:00 a.m. - 4:30 p.m. Point of Contact 2011 Person Richards, Benjamin L benjamin.richards@noaa.gov https://orcid.org/0000-0001-9907-6221 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5320 Email or phone (808-983-5320) Ground Condition -156.89 -156.27 20.97 20.53 Main Hawaiian Islands Range 2011 2015 Unclassified 55928 Data Set gov.noaa.nmfs.inport:20968 Benjamin Richards 2013-11-29T19:02:02 SysAdmin InPortAdmin 2026-03-04T19:17:28 2019-07-25 Pacific Islands Fisheries Science Center PIFSC 1845 Wasp Blvd. Honolulu HI 96818 USA 808-725-5300 https://www.pifsc.noaa.gov 8:00 a.m. - 4:30 p.m. 1001 Public No 2019-07-25 1 Year 2020-07-25