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  • christoph_troesch_underwater
    Christoph Trösch
    @christoph_troesch_underwater

Images by christoph_troesch_underwater

Early ancestors of the orang-utan evolved from the African apes about 17 million years ago and spread into Asia. Today, we name smaller animals after the strong apes with orange hair and long arms: This is an orang-utan crab (Achaeus japonicus) from #RajaAmpat, #WestPapua. 🦀
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#crustacean #muckdive #muckdiving #macro #uwmacro #underwaternerdland #underwater_world_ #underwaterphotography #scubagram #instagood #underwaterlicious #underwaterlife #shrimp #diving #scuba #duiken #tauchen #plonger #buceo #olympustg4 #olympus #marinebiology #colorful #instalike #crabs #crustacea #uwmacrophotography #uwphoto
Early ancestors of the orang-utan evolved from the African apes about 17 million years ago and spread into Asia. Today, we name smaller animals after the strong apes with orange hair and long arms: This is an orang-utan crab (Achaeus japonicus) from #RajaAmpat , #WestPapua . 🦀 . . . . #crustacean  #muckdive  #muckdiving  #macro  #uwmacro  #underwaternerdland  #underwater_world_  #underwaterphotography  #scubagram  #instagood  #underwaterlicious  #underwaterlife  #shrimp  #diving  #scuba  #duiken  #tauchen  #plonger  #buceo  #olympustg4  #olympus  #marinebiology  #colorful  #instalike  #crabs  #crustacea  #uwmacrophotography  #uwphoto 
#Nudibranchs are male and female at the same time: they are equipped with both egg-producing ovaries and sperm-producing testes. To decide who's the female part, they fence with their dongs. The better #fencer will be the male. Halgerda batangas - recorded at Serena, #Lembeh. 🐌
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#nudibranquio #weirdos #nudibranch #nudibranchia #nudibranch_ia #seaslug #seaslugs #underwater_world_ #underwaternerdland #uwpics #uwmacro #macrophotography #instagood #underwaterphotography #underwaterart #marinebiology #lembehstrait #muckdiving #muckdive #scubagram #scubadiving #duiken #tauchen #plonger #buceo #olympus #scubadiving #sexism
#Nudibranchs  are male and female at the same time: they are equipped with both egg-producing ovaries and sperm-producing testes. To decide who's the female part, they fence with their dongs. The better #fencer  will be the male. Halgerda batangas - recorded at Serena, #Lembeh . 🐌 . . . . #nudibranquio  #weirdos  #nudibranch  #nudibranchia  #nudibranch_ia  #seaslug  #seaslugs  #underwater_world_  #underwaternerdland  #uwpics  #uwmacro  #macrophotography  #instagood  #underwaterphotography  #underwaterart  #marinebiology  #lembehstrait  #muckdiving  #muckdive  #scubagram  #scubadiving  #duiken  #tauchen  #plonger  #buceo  #olympus  #scubadiving  #sexism 
Many #coralreef areas around the world experienced bleaching two or even three years in a row from 2014 to 2017. #NOAA scientists say that the bleaching event of 2017 was the most damaging and widespread on record. Let's all hope that #reefs like this one in #RajaAmpat will stay fully alive and intact for a looong time. 🙏🏻
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#coral #corals #westpapua #underwaternerdland #uwphoto #marinebio #marinebiology #marinelife #sealife #saveoursea #saveouroceans #oceanconservation #underwaterphotography #marineconservation #corallove #corallovers #scubagram #diving #duiken #buceo #underwater_world_ #underwaterworld #oneplanet #scubalove #saveourwater #conservation
Many #coralreef  areas around the world experienced bleaching two or even three years in a row from 2014 to 2017. #NOAA  scientists say that the bleaching event of 2017 was the most damaging and widespread on record. Let's all hope that #reefs  like this one in #RajaAmpat  will stay fully alive and intact for a looong time. 🙏🏻 . . . . #coral  #corals  #westpapua  #underwaternerdland  #uwphoto  #marinebio  #marinebiology  #marinelife  #sealife  #saveoursea  #saveouroceans  #oceanconservation  #underwaterphotography  #marineconservation  #corallove  #corallovers  #scubagram  #diving  #duiken  #buceo  #underwater_world_  #underwaterworld  #oneplanet  #scubalove  #saveourwater  #conservation 
The lovely but temperamental Peacock Mantis Shrimp (Odontodactylus scyllarus) can see ten times more colors than a human eye. Also, it can punch its prey with such great speed and force that it creates underwater shockwaves - so don't go too close with your camera! This one is from Nudi Retreat, #Lembeh. 🦐
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#crustaceans #peacockmantisshrimp #mantisshrimp #lembehstrait #lembehisland #muckdive #muckdiving #macro #uwmacro #underwaternerdland #underwater_world_ #underwaterphotography #scubagram #instagood #underwaterlicious #underwaterlife #shrimp #diving #scuba #duiken #tauchen #plonger #buceo #animaleyes #eyesight #olympustg4 #olympus #marinebiology #colorful
The lovely but temperamental Peacock Mantis Shrimp (Odontodactylus scyllarus) can see ten times more colors than a human eye. Also, it can punch its prey with such great speed and force that it creates underwater shockwaves - so don't go too close with your camera! This one is from Nudi Retreat, #Lembeh . 🦐 . . . . #crustaceans  #peacockmantisshrimp  #mantisshrimp  #lembehstrait  #lembehisland  #muckdive  #muckdiving  #macro  #uwmacro  #underwaternerdland  #underwater_world_  #underwaterphotography  #scubagram  #instagood  #underwaterlicious  #underwaterlife  #shrimp  #diving  #scuba  #duiken  #tauchen  #plonger  #buceo  #animaleyes  #eyesight  #olympustg4  #olympus  #marinebiology  #colorful 
This is a Candy Crab (Hoplophrys oatesi) from #Bunaken, #NorthSulawesi. I love how they mimic the soft corals they're living on. They are only about 15mm in size and come in different colors like yellow, red and purple. 🦀
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#uwmacro #uwphoto #uwphotography #underwaternerdland #underwaterphotography #underwaterlicious #underwaterwednesday #underwatermacro #underwater_world_ #olympustg4 #lembehstrait #indonesia #diving #plongee #tauchen #buceo #macro #macromood #marinebio #crustaceans #crustacés #crustacean #crab #crabs #crabsofinstagram  #duiken #instagood #scubagram
This is a Candy Crab (Hoplophrys oatesi) from #Bunaken , #NorthSulawesi . I love how they mimic the soft corals they're living on. They are only about 15mm in size and come in different colors like yellow, red and purple. 🦀 . . . . #uwmacro  #uwphoto  #uwphotography  #underwaternerdland  #underwaterphotography  #underwaterlicious  #underwaterwednesday  #underwatermacro  #underwater_world_  #olympustg4  #lembehstrait  #indonesia  #diving  #plongee  #tauchen  #buceo  #macro  #macromood  #marinebio  #crustaceans  #crustacés  #crustacean  #crab  #crabs  #crabsofinstagram  #duiken  #instagood  #scubagram 
This is my #50thpost on #Instagram. I'd like to dedicate this to a special kind of #scubadiving: the #nightdive. Always a bit weird to enter the ocean in complete darkness, but it is so rewarding and cool because you always find a surprise. I recorded this small #squid around Kawe, #RajaAmpat. 🦑
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#50th #50thinstapost #my50thpost #nightdiving #scubagram #underwater_world_ #underwaternerdland #underwaterphotography #uwmacro #uwphoto #blackwater #cephalopod #uwphotography #marinebiology #rajaampatdiving #westpapua #indonesiadiving #instagood #underwaterlicious #underwaterlife #paditv #apeks #olympustg4 #sealife
This is my #50thpost  on #Instagram . I'd like to dedicate this to a special kind of #scubadiving : the #nightdive . Always a bit weird to enter the ocean in complete darkness, but it is so rewarding and cool because you always find a surprise. I recorded this small #squid  around Kawe, #RajaAmpat . 🦑 . . . . #50th  #50thinstapost  #my50thpost  #nightdiving  #scubagram  #underwater_world_  #underwaternerdland  #underwaterphotography  #uwmacro  #uwphoto  #blackwater  #cephalopod  #uwphotography  #marinebiology  #rajaampatdiving  #westpapua  #indonesiadiving  #instagood  #underwaterlicious  #underwaterlife  #paditv  #apeks  #olympustg4  #sealife 
Flabellina exoptata - probably the most widespread aeolid #nudibranch of tropical waters. I really like the coloring here. Typically, they are about 30mm long. I took this shot at #Nudi Retreat, #Lembeh. 🐌
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#nudibranquio #nudibranchs #nudibranchia #nudibranch_ia #seaslug #seaslugs #underwater_world_ #underwaternerdland #uwpics #uwmacro #macrophotography #instagood #underwaterphotography #underwaterart #marinebiology #lembehstrait #muckdiving #muckdive #scubagram #scubadiving #duiken #tauchen #plonger #buceo #olympus #lembehisland #lembehdiving #scubadiving
Flabellina exoptata - probably the most widespread aeolid #nudibranch  of tropical waters. I really like the coloring here. Typically, they are about 30mm long. I took this shot at #Nudi  Retreat, #Lembeh . 🐌 . . . . #nudibranquio  #nudibranchs  #nudibranchia  #nudibranch_ia  #seaslug  #seaslugs  #underwater_world_  #underwaternerdland  #uwpics  #uwmacro  #macrophotography  #instagood  #underwaterphotography  #underwaterart  #marinebiology  #lembehstrait  #muckdiving  #muckdive  #scubagram  #scubadiving  #duiken  #tauchen  #plonger  #buceo  #olympus  #lembehisland  #lembehdiving  #scubadiving 
Crinoids crazy in #RajaAmpat! #Crinoid is a greek derivate meaning "form of a lily". This is why they are also called sea lilies if they are attached to the bottom by a stem. Most of the time though, they are freely moving - and this is when we call them feather stars. They are widespread from shallow waters to depths of up to 9000m. Oh and their anus is located next to the mouth.🐚
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#underwaternerdland #underwater_world_ #uwphotography #uwphoto #rajaampatisland #rajaampattrip #wayag #wayagisland #diving #duiken #plongée #tauchen #buceo #marinebiology #olympustg4 #instagood #scubagram #indonesiadiving #scuba #coral #corals #coralreef #saveourreefs #saveouroceans #marineconservation #crinoids #crinoidea #dreamvacay
Crinoids crazy in #RajaAmpat ! #Crinoid  is a greek derivate meaning "form of a lily". This is why they are also called sea lilies if they are attached to the bottom by a stem. Most of the time though, they are freely moving - and this is when we call them feather stars. They are widespread from shallow waters to depths of up to 9000m. Oh and their anus is located next to the mouth.🐚 . . . . #underwaternerdland  #underwater_world_  #uwphotography  #uwphoto  #rajaampatisland  #rajaampattrip  #wayag  #wayagisland  #diving  #duiken  #plongée  #tauchen  #buceo  #marinebiology  #olympustg4  #instagood  #scubagram  #indonesiadiving  #scuba  #coral  #corals  #coralreef  #saveourreefs  #saveouroceans  #marineconservation  #crinoids  #crinoidea  #dreamvacay 
Some #commensal #shrimps from #Lembeh. Marine #commensalism is a kind of relationship between two organisms - like #corals and shrimps - where one organism benefits from the other without affecting it.🦐
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#video #videogram #videography #macrovideo #macrovideography #lembehstrait #crustacés #crustacea #crustaceans #crustacean #shrimp #uwmacro #underwater_world_ #underwaternerdland #instagood #tauchen #diving #plonger #buceo #scubagram #paditv #scubadiving #muckdiving #muckdive #indonesiadiving
Some #commensal  #shrimps  from #Lembeh . Marine #commensalism  is a kind of relationship between two organisms - like #corals  and shrimps - where one organism benefits from the other without affecting it.🦐 . . . . #video  #videogram  #videography  #macrovideo  #macrovideography  #lembehstrait  #crustacés  #crustacea  #crustaceans  #crustacean  #shrimp  #uwmacro  #underwater_world_  #underwaternerdland  #instagood  #tauchen  #diving  #plonger  #buceo  #scubagram  #paditv  #scubadiving  #muckdiving  #muckdive  #indonesiadiving 
Chelidonura electra - a headshield slug rather than a classic #nudibranch. Found this one on a nightdive around #KriIsland, #RajaAmpat. Its name apparently comes from the Greek goddess Electra, meaning "shining headshield slug". 🐌
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#nudibranquio #nudibranchs #seaslug #seaslugs #instagood #uwmacro #uwphoto #macro #olympustg4 #tg4 #marinelife #nudis #westpapua #headshieldslug #nightdive #marinecritters #underwater_world_ #underwaterphotography #underwaterphoto #diving #plongée #tauchen #buceo #weirdanimal #lifemovie #scubagram #underwaternerdland
Chelidonura electra - a headshield slug rather than a classic #nudibranch . Found this one on a nightdive around #KriIsland , #RajaAmpat . Its name apparently comes from the Greek goddess Electra, meaning "shining headshield slug". 🐌 . . . . #nudibranquio  #nudibranchs  #seaslug  #seaslugs  #instagood  #uwmacro  #uwphoto  #macro  #olympustg4  #tg4  #marinelife  #nudis  #westpapua  #headshieldslug  #nightdive  #marinecritters  #underwater_world_  #underwaterphotography  #underwaterphoto  #diving  #plongée  #tauchen  #buceo  #weirdanimal  #lifemovie  #scubagram  #underwaternerdland 
It's #flatsharkfriday! #Mantas are relatives of sharks. I've encountered these oceanic manta rays (#Manta birostris, up to 7m wingspan) at Blue Magic, Dampier Strait, #RajaAmpat. Like whales, they sometimes breach for no apparent reason. A very special animal.🦈
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#mantaray #mantarays #giantmantaray #giantmanta #underwater_world_ #underwaternerdland #underwaterphotography #uwphoto #kri #kriisland #papuadiving #westpapua #westpapuan #diving #instagood #duiken #tauchen #plongee #indonesiadiving #underwaterlife #underwaterlicious #instavideo #videogram
It's #flatsharkfriday ! #Mantas  are relatives of sharks. I've encountered these oceanic manta rays (#Manta  birostris, up to 7m wingspan) at Blue Magic, Dampier Strait, #RajaAmpat . Like whales, they sometimes breach for no apparent reason. A very special animal.🦈 . . . . #mantaray  #mantarays  #giantmantaray  #giantmanta  #underwater_world_  #underwaternerdland  #underwaterphotography  #uwphoto  #kri  #kriisland  #papuadiving  #westpapua  #westpapuan  #diving  #instagood  #duiken  #tauchen  #plongee  #indonesiadiving  #underwaterlife  #underwaterlicious  #instavideo  #videogram 
Caloria indica, a very colorful #nudibranch that looks quite like Flabellina exoptata. A closer look reveals the differences in the coloration, the aeolids and the rhinophores. Pic taken at Police Pier, #Lembeh.🐌
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#nudi #nudibranquio #nudibranchs #nudibranchia #nudibranch_ia #seaslug #seaslugs #underwater_world_ #underwaternerdland #uwpics #uwmacro #macrophotography #instagood #underwaterphotography #underwaterart #marinebiology #lembehstrait #muckdiving #muckdive #scubagram #scubadiving #duiken #tauchen #plonger #buceo #olympus #lembehisland
Caloria indica, a very colorful #nudibranch  that looks quite like Flabellina exoptata. A closer look reveals the differences in the coloration, the aeolids and the rhinophores. Pic taken at Police Pier, #Lembeh .🐌 . . . . #nudi  #nudibranquio  #nudibranchs  #nudibranchia  #nudibranch_ia  #seaslug  #seaslugs  #underwater_world_  #underwaternerdland  #uwpics  #uwmacro  #macrophotography  #instagood  #underwaterphotography  #underwaterart  #marinebiology  #lembehstrait  #muckdiving  #muckdive  #scubagram  #scubadiving  #duiken  #tauchen  #plonger  #buceo  #olympus  #lembehisland 
I've recorded this beautiful Elysia marginata #nudi at #dampierstrait, #rajaampat. This one is about 45mm in size. They belong to the clade of #heterobranchia - that means that they breathe differently than other #seaslugs and #nudibranchs . 🐌
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#uwpics #instagood #scubagram #uwmacro #uwphoto #underwaternerdland #underwatermacro #underwaterphotography #nudibranquio #nudibranchia #nudis #nudibranch #nudibranch_ia #thebarefootwalker #underwater_world_ #olympustg4 #tauchen #duiken #plonger #diving #scubadiving #bestpics #seaslug
I've recorded this beautiful Elysia marginata #nudi  at #dampierstrait , #rajaampat . This one is about 45mm in size. They belong to the clade of #heterobranchia  - that means that they breathe differently than other #seaslugs  and #nudibranchs  . 🐌 . . . . #uwpics  #instagood  #scubagram  #uwmacro  #uwphoto  #underwaternerdland  #underwatermacro  #underwaterphotography  #nudibranquio  #nudibranchia  #nudis  #nudibranch  #nudibranch_ia  #thebarefootwalker  #underwater_world_  #olympustg4  #tauchen  #duiken  #plonger  #diving  #scubadiving  #bestpics  #seaslug