{"id":14812,"date":"2024-01-30T00:50:13","date_gmt":"2024-01-30T00:50:13","guid":{"rendered":"https:\/\/shareperformanceinsight.com\/index.php\/2024\/01\/30\/great-white-sighting-may-reveal-a-holy-grail-of-shark-science\/"},"modified":"2024-01-30T00:50:13","modified_gmt":"2024-01-30T00:50:13","slug":"great-white-sighting-may-reveal-a-holy-grail-of-shark-science","status":"publish","type":"post","link":"https:\/\/shareperformanceinsight.com\/index.php\/2024\/01\/30\/great-white-sighting-may-reveal-a-holy-grail-of-shark-science\/","title":{"rendered":"Great white sighting may reveal a \u2018holy grail\u2019 of shark science"},"content":{"rendered":"
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Drone footage shot off the coast of Southern California may have revealed the first ever glimpse of a newborn great white shark in the wild. <\/p>\n

The 1.5-meter-long (5-foot-long) white shark was spotted on July 9, 2023, 400 meters (1,300 feet) off the coast of Carpinteria, California, by wildlife filmmaker Carlos Gauna and Phillip Sternes, a doctoral student in the department of biology at University of California Riverside, while they were shooting aerial video and images. <\/p>\n

Its pale coloring and size immediately struck the duo as unusual. Adult great white sharks are gray on top and white underneath. <\/p>\n

Gauna and Sternes examined the images and video in the viewfinder of the drone camera and noticed a thin, white film covering the shark that was sloughing off the animal as it moved. <\/p>\n

\u201cWe enlarged the images, put them in slow motion, and realized the white layer was being shed from the body as it was swimming,\u201d Sternes said in a news release. \u201cI believe it was a newborn white shark shedding its embryonic layer.\u201d <\/p>\n

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The case for the baby great white sighting<\/h3>\n

While in utero, embryonic sharks feed on unfertilized eggs for protein. The mothers offer additional nourishment to the growing shark pups with a milk secreted in the uterus. It\u2019s some of this material that Gauna and Sternes believe gives the shark its unusual coloring. <\/p>\n

They documented their observations in a study published Monday in <\/strong>the peer-reviewed Environmental Biology of Fishes journal. <\/p>\n

\u201cGiven that white sharks produce uterine milk, it is within the realm of possibility that either this fluid or another fluid could have adhered to the shark right before birth,\u201d the authors noted in the study. <\/p>\n

If their assessment is correct, it\u2019s the first time that a newborn great white shark has been observed in the wild. <\/p>\n

\u201cWhere white sharks give birth is one of the holy grails of shark science. No one has ever been able to pinpoint where they are born, nor has anyone seen a newborn baby shark alive,\u201d Gauna said in the news release. \u201cThere have been dead white sharks found inside deceased pregnant mothers. But nothing like this.\u201d <\/p>\n

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Related article<\/span> Megalodons were skinnier than we previously thought, new study suggests<\/span> <\/p>\n<\/div>\n

An alternative explanation for the shark\u2019s whitish color could be that it was cause by an unknown skin disorder, according to the study. However, Gauna and Sternes said they believe the most plausible answer is that the creature they observed is a newborn great white, according to the news release. <\/p>\n

Its shape and size were indicative of a newborn: thin with rounded fin apexes, the study noted. In addition, other researchers have suggested this location off the coast of central California is a birthing ground for great white sharks. <\/p>\n

Gauna and Sternes also noted in the study that mature sharks were spotted in the same area on the same day and the day before the footage was captured. <\/p>\n

\u201cIn my opinion, this one was likely hours, maybe one day old at most,\u201d Sternes said. <\/p>\n

Speculative finding?<\/h3>\n

Gavin Naylor, director of the Florida Program for Shark Research at the University of Florida and a curator at the Florida Museum of Natural History, said it is possible the sighting was a newborn great white shark, but added that the finding is \u201chighly speculative.\u201d <\/p>\n

\u201cWhite sharks typically have between 8 and 12 pups at a time, so where are all the others,\u201d Naylor, who wasn\u2019t involved in the study, said via email. <\/p>\n

Nicholas Ray, a researcher at Nottingham Trent University in the UK, who has studied great white shark population dynamics in South Africa, called the sighting documented by Gauna and Sternes \u201cfantastic.\u201d <\/p>\n

\u201cThis observation is hugely significant and is at the start of scientists\u2019\u00a0understanding of the elusive reproductive cycles of this endangered species. It could unlock the door as a new discovery and reinforce the need for greater protection in these areas,\u201d said Ray, who wasn\u2019t involved with this study, in an email. <\/p>\n

That the shark pup was filmed so close to the coast\u00a0could be significant because its age means it was likely born in shallow waters. Other shark experts believe great whites are born farther out at sea, according to the news release. <\/p>\n

\u201cIt has been hypothesized by other researchers that white sharks are born in shallow, coastal waters in this region, but never observed,\u201d said Greg Skomal, senior fisheries scientist at the Massachusetts Division of Marine Fisheries and author of the book \u201cChasing Shadows: My Life Tracking the Great White Shark.\u201d <\/p>\n

\u201cWhile the presence of this young white shark in this area supports this hypothesis, the actual birth was not observed. We cannot rule out that the shark, which is quite mobile, could have moved a great distance from the birthing area. Regardless, this is a very exciting observation.\u201d <\/p>\n

The observations require \u201cfurther investigation and additional evidence for support or refutation,\u201d according to the study. <\/p>\n

\u201cNevertheless, in either case, the use of the aerial drone has provided shark science with another interesting set of information,\u201d the study authors added. <\/p>\n\n

This post appeared first on cnn.com<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Drone footage shot off the coast of Southern California may have revealed the first ever glimpse of a newborn great white shark in the wild. The 1.5-meter-long (5-foot-long) white shark was spotted on July 9, 2023, 400 meters (1,300 feet) off the coast of Carpinteria, California, by wildlife filmmaker Carlos Gauna and Phillip Sternes, a <\/p>\n","protected":false},"author":0,"featured_media":14813,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":{"0":"post-14812","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-world"},"_links":{"self":[{"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/posts\/14812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/comments?post=14812"}],"version-history":[{"count":0,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/posts\/14812\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/media\/14813"}],"wp:attachment":[{"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/media?parent=14812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/categories?post=14812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shareperformanceinsight.com\/index.php\/wp-json\/wp\/v2\/tags?post=14812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}