The Biogeography of the Oceans

So far in my studies of biogeography, we've mainly looked at how life distributes and structures itself on land. Today we're changing that by taking a deep dive into the many similarities and differences between terrestrial and marine environments.

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Sources / Further Reading

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[CuriousArchive]

The way you render maps and images is next level. This would be an amazing start to a marine biogeography class!

[hadogenes]

I'm studying marine biology at university right now and I think this video might be single-handedly the best thing I've ever seen in terms of how much understanding it gives of the ocean. The maps looks fantastic, the video is well explained and excellently produced. I cannot give this video higher praise and I will be sending this to everyone I know who is doing marine biology too.
Love your channel, I subscribed to you patreon just because of how amazing this video is.

[oryanraday]

Turns out today is a good day. We have an atlas pro upload!

[Trash_Boat]

A significant factor that was neglected is the salinity of regions in the worlds oceans. It’s not constant at all. Places like the Red Sea have a significant degree of endemism in the organisms that live there due to the significantly greater salinity in its waters than the rest of the surrounding oceans. I just thought that was neat. It probably isn’t significant enough to make it it’s own realm though. Great video as always this one was spectacular! Congrats on 1, 000, 000 subscribers too :))) you’ve earned it!

[thumbus]

Your videos have given me more knowledge about geography than most classes I’ve taken. I can’t understate how much I appreciate your channel and everything you do. Keep up the good work!

[cinemaipswich]

As an Australian, I find the marine realm profound. Walking from a topical rain forest, down to a sandy beach, then out to coral reefs is one the most wonderful experiences of my life. I remember it was mid-winter's day, yet it was warm and enveloping paradise.

[doanrademeyer]

Im currently a geography teacher, i love this content so much, and this guy is invaluable

[MrAntaresFr]

Just an idea... I think you might have underestimated the role of ocean currents to link/seperate biogeographic zones of oceans. Although currents are "invisible", they are a still physical connections/barriers, and even powerful ones, acting like highways! It can explain why north-american/european temperate zones and south-american/african tropical zones are connected accross Atlantic. This may also explain why the huge tropical indo-pacific coral kingdom is divided into 3 realms: at least, one influenced by indian ocean currents and one influenced by pacific ocean curents. It is also a determinant factor for the isolation of Antarctica.

I also read articles saying that ocean currents can explain the relative homogeneity accross the planet and the persistence in time for the deep sea ceatures.

[Pwndbythnb]

Aside from physical barriers, salinity, currents and temperature plays a major role in separating oceanic populations. It's like how a desert can seperate species despite it being connected by land and you could "simply" walk through it.

[jojogh]

It's amazing how in every video, you not only present everything absolutely understandable and descriptive, you also find out new things that 1: people definitely didn't know yet and 2: you often are the first person to find out such things!
Love your videos!

[Terra-YT]

Wow Atlas Pro this might be my favourite video of yours yet. You're a total inspiration and actually because of seeing your success I've decided to start making videos too! Keep grinding, your hard work clearly pays off!

[vitaminluke]

Certain keystone species make these realms feel more concrete. E.g. the temperate North Atlantic realm has atlantic salmon from NY to France, while the Pacific salmon species range from Japan to California. I'm sure the other realms all have some charismatic species or clade that can be used as a sort of mascot.

[janstreffing]

Great video! Small correction on the origin of ice floating in the Arctic: While some of it might come in via Snowfall on land -> Glaciers -> Calving -> Icebergs, the majority is actually sea water freezing at ~-1.8°C depending on salt concentration. The two forms of ice also look visually quite different. The ice from Icebergs looks like floating mountains of ice, while sea ice, especially the fresh kind in spring is found in large nearly flat sheets.

[yourlostcarkeys]

I'd love to get a softcopy of the map you showed throughout the video, that would be absolutely amazing.

[alexfarnworth]

This is so random and unrelated, but I'm doing Uni assessments right now, its 9pm on a Wednesday and I've got 2500 words to type on a subject I haven't studied for due at 3pm tomorrow. I'm gonna be awake all night. But the last time I had to do this I watched one of your videos and for some reason it encouraged me to not only stick with it and complete my task but I done it to a good standard.
I'm not great with keeping my work up to date hence why I'm here again but this video has given me some hope I can pull it off once again :). I don't get a lot of hope especially when I'm all alone at night in the middle of winter so I'm glad this channel is here. Sorry it's got no relation to the video but I just had to say something to someone, somewhere.

[shoam]

The first time I learned / got a hint that you were still in school / college, my mind was blown. Here was someone who was teaching me knowledge I've never been taught, or never had come across from, in a totally novel way.

Seriously, almost all of your videos have an insight I never would have known otherwise. I can understand why a certain aspect of the world / universe is that way, and even use them to explain to others causes of things which on the surface seems unrelated..

[iamleoooo]

I am tremendously grateful for you to be on YouTube. You are really one of a kind. Since i like geography and zoology a lot i feel very lucky to find your channel. This makes me wonder why has no one ever really make biogeography documentary yet?

[stevejohnson]

Ocean residents do move around. It's getting more and more common for marine life to wash up on shore far far away from where it should be. Also there is the coelacanth. Rediscovered as a living being off the coast of South Africa now known to live in the south Pacific as well. An amazing video. I wish there were more of you.

[justdavedoindavestuff]

That was super interesting, bro. Being a past aquarist, it made some things make a lot more sense. I thank you for your efforts. 🙂

[osteoclast]

This channel is a gem. As someone who has a broad interest in natural sciences, it is great to have access to educational content that goes further than what I learned in high school. I decided to go with medicine for my career bc I want to have a job and money lol . I could minor in geography or something but I don't have time for that. After uni documentaries seem too dumbed down and dramatized, so I watch YouTube instead. The problem is that educational YouTube channels all tend to cover similar, small pieces of information (that do make a click worthy title) without going into the basic concepts, that you would learn in college/uni, that are important for actually understanding those small interesting tidbits. When you understand the basic mechanisms everything just makes sense. That's why this channel is so good.