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  • Happy Father’s day to all the dads out there! This is a little shout-out to one of nature’s best fathers, the seahorse. Male seahorses, as well as supplying the sperm to fertilize the eggs, also incubate them inside a modified abdominal pouch for a full 24 days before birth. It turns out that these sygnathids have a highly complex pregnancy, involving more then 3000 different genes – many with specific pregnancy-related functions. Some allow the father to provide specialized nutrients like energy-rich fats and calcium to aid the growth of the tiny embryos, others work to remove embryo-related waste products, and some even produce antibacterial and antifungal molecules to protect the developing young from infection. A subset of these genes also work to assist in the labor itself – producing hatching signals to cue the embryos to break from their membranes and swim freely inside the brood pouch. All this leads up to a full labor, complete with contractions, ending in the release of up to 2500 baby seahorses (depending on the species). Interestingly enough, many of these genes discovered in seahorse dads are quite similar to genes associated with reproductive function in mammals, reptiles, and other fish – potentially suggesting a case of convergent evolution, where a base set of key genes have evolved independently across different evolutionary lineages over time.
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Taken while in the field on an internship with @npssubmerged and @owuss_ . .
Source: Camilla M. Whittington, Oliver W. Griffith, Weihong Qi, Michael B. Thompson, Anthony B. Wilson, Seahorse Brood Pouch Transcriptome Reveals Common Genes Associated with Vertebrate Pregnancy, Molecular Biology and Evolution, Volume 32, Issue 12, December 2015, Pages 3114–3131 . . .

#seahorse #marineecology #ecology #ocean #usvirginislands #scuba #diving #caribbean #underwater #marinescience #stcroix #underwaterphotography #uwphoto #scubadiving #wildlifeconservation #marineconservation #conservation #fathersday #macro #ucsc #coralreef #fishfacts #savetheocean #discoverocean #scubadiverslife #underwaterlife #underwater_world_ #underwaterpics #underwatermacro #biodiversity
  • Happy Father’s day to all the dads out there! This is a little shout-out to one of nature’s best fathers, the seahorse. Male seahorses, as well as supplying the sperm to fertilize the eggs, also incubate them inside a modified abdominal pouch for a full 24 days before birth. It turns out that these sygnathids have a highly complex pregnancy, involving more then 3000 different genes – many with specific pregnancy-related functions. Some allow the father to provide specialized nutrients like energy-rich fats and calcium to aid the growth of the tiny embryos, others work to remove embryo-related waste products, and some even produce antibacterial and antifungal molecules to protect the developing young from infection. A subset of these genes also work to assist in the labor itself – producing hatching signals to cue the embryos to break from their membranes and swim freely inside the brood pouch. All this leads up to a full labor, complete with contractions, ending in the release of up to 2500 baby seahorses (depending on the species). Interestingly enough, many of these genes discovered in seahorse dads are quite similar to genes associated with reproductive function in mammals, reptiles, and other fish – potentially suggesting a case of convergent evolution, where a base set of key genes have evolved independently across different evolutionary lineages over time.
    .
    Taken while in the field on an internship with @npssubmerged and @owuss_ . .
    Source: Camilla M. Whittington, Oliver W. Griffith, Weihong Qi, Michael B. Thompson, Anthony B. Wilson, Seahorse Brood Pouch Transcriptome Reveals Common Genes Associated with Vertebrate Pregnancy, Molecular Biology and Evolution, Volume 32, Issue 12, December 2015, Pages 3114–3131 . . .

    #seahorse #marineecology #ecology #ocean #usvirginislands #scuba #diving #caribbean #underwater #marinescience #stcroix #underwaterphotography #uwphoto #scubadiving #wildlifeconservation #marineconservation #conservation #fathersday #macro #ucsc #coralreef #fishfacts #savetheocean #discoverocean #scubadiverslife #underwaterlife #underwater_world_ #underwaterpics #underwatermacro #biodiversity
  • 277 4 8 hours ago
  • If encounter a happy globe of anthias like this I immediately want to join in on the merry dance around the coral. Unfortunately reality will always catch up and I’m left with a surface interval of memories in orange and blue. I guess there is always next time, right? ;)
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#ocean #fish #underwater #coral #reef #scuba #diving #redsea
  • If encounter a happy globe of anthias like this I immediately want to join in on the merry dance around the coral. Unfortunately reality will always catch up and I’m left with a surface interval of memories in orange and blue. I guess there is always next time, right? ;)
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    #ocean #fish #underwater #coral #reef #scuba #diving #redsea
  • 612 32 17 hours ago

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  • I found this Crab on a recent night dive, swimming on top of the waters surface. Much to my surprise the crab’s paddle shaped legs move fairly fast, when it wants to swim away 🦀
  • I found this Crab on a recent night dive, swimming on top of the waters surface. Much to my surprise the crab’s paddle shaped legs move fairly fast, when it wants to swim away 🦀
  • 525 24 23 hours ago
  • A hatchlings little stare, the ocean and the air.
  • A hatchlings little stare, the ocean and the air.
  • 1,657 31 15 June, 2019

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  • Made some new friends. Vibing with a pod of dolphins. Thanks for the magical surprise visit. I was enchanted to meet you :)
  • Made some new friends. Vibing with a pod of dolphins. Thanks for the magical surprise visit. I was enchanted to meet you :)
  • 69 4 3 hours ago