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A series of annual offshore recreational fishing tournaments target Atlantic blue marlin (\n                    <jats:italic>Makaira nigricans<\/jats:italic>\n                    ), white marlin (\n                    <jats:italic>Kajikia albida<\/jats:italic>\n                    ) and roundscale spearfish on their seasonal foraging grounds in the South and Mid\u2010Atlantic Bight. Through this network of tournaments and recreational anglers, we collected stomachs from Atlantic blue marlin (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200932), white marlin (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200935) and roundscale spearfish (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200944) from 2018 to 2020 to investigate general diet composition. Stomach content analysis and DNA barcoding identified a total of 16 prey families across the three focal\u00a0species, but the majority of prey weight (%W) was from two families (Scombridae and Ommastrephidae). Blue marlin and roundscale spearfish were predominantly piscivorous (99.0 and 80.6%W fishes, respectively), whereas white marlin mainly consumed cephalopods (80%W). The contribution of Scombridae was highest for blue marlin (94.6%W), intermediate for roundscale spearfish (51.7%W) and lowest for white marlin (11%W), with an inverse pattern of relative contribution for Ommastrephidae\u00a0(0.9, 16.1 and 73.9%W, respectively). Roundscale spearfish and white marlin, despite having a near identical morphology, had diets composed of different prey types in our sample. These dietary data, from three epipelagic apex predators, provide important information for wider ecosystem\u2010based studies, including in relation to the Mackerel, Squid and Butterfish Fishery Management Plan overseen by the Mid\u2010Atlantic Fishery Management Council.\n                  <\/jats:p>","DOI":"10.1111\/jfb.70431","type":"journal-article","created":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T11:10:14Z","timestamp":1776078614000},"page":"2216-2228","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Diet composition of data\u2010limited marlins (\n                    <scp>Istiophoridae<\/scp>\n                    ) in the\n                    <scp>Northwest Atlantic<\/scp>"],"prefix":"10.1111","volume":"108","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-8460-7981","authenticated-orcid":false,"given":"Joseph J.","family":"Dello Russo","sequence":"first","affiliation":[{"name":"School of Marine Sciences, University of Maine  Orono Maine USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0590-7678","authenticated-orcid":false,"given":"John M.","family":"Logan","sequence":"additional","affiliation":[{"name":"Massachusetts Division of Marine Fisheries  New Bedford Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Riley","family":"Austin","sequence":"additional","affiliation":[{"name":"School of Marine Sciences, University of Maine  Orono Maine USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zachary T.","family":"Whitener","sequence":"additional","affiliation":[{"name":"Gulf of Maine Research Institute  Portland Maine USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Isabelle","family":"S\u00e9e","sequence":"additional","affiliation":[{"name":"School of Marine Sciences, University of Maine  Orono Maine USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benjamin M.","family":"Hurley","sequence":"additional","affiliation":[{"name":"School of the Earth, Ocean, &amp; Environment, University of South Carolina  Columbia South Carolina USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisa A.","family":"Kerr","sequence":"additional","affiliation":[{"name":"School of Marine Sciences, University of Maine  Orono Maine USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joseph M.","family":"Quattro","sequence":"additional","affiliation":[{"name":"School of the Earth, Ocean, &amp; Environment, University of South Carolina  Columbia South Carolina USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Walter J.","family":"Golet","sequence":"additional","affiliation":[{"name":"School of Marine Sciences, University of Maine  Orono Maine USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,13]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-7836(99)00053-3"},{"key":"e_1_2_10_3_1","first-page":"2128","article-title":"Blue marlin and white marlin CPUE and feeding time of the sports fishery off Rio De Janeiro state, Brazil (2001\u20102008)","volume":"64","author":"Amorim A. 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