The Aquatic Environment: Marine and Freshwater

Water covers 70% of the surface of the Earth, and serves as home to an incredible variety of living organisms. Most of that water is salty, or marine, while some is freshwater, and it is in constant motion through the hydrologic cycle. How can we describe these environments and ecosystems?

Script by Ulyana Horodyskyj

Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!

[SnappyWasHere]

Water is so important and common it’s almost like life evolved in the presence of it. But the discovery institute told me that’s just a coincidence. 😂😂😂

[jollyjokress]

Naturally evolved Estuaries are so important but most are lost to something lesser now. I hope eventually the natural ones will be returned.

[BarefootEnglish]

Thank you for these fantastic educational videos. I use your videos with my most advanced English students (ages 9 to adult) in Vietnam. They are homework assignments with written or verbal Tests.

[alexsteele-morgan]

Hi, really appreciate your content in general, but the lagoon pic (at 7.35 mins) isn’t a natural lagoon. It’s in Pembrokeshire, Wales, UK. It was a slate quarry and when that ended it was blasted to make an inlet to harbour fishing boats. Now it is a swimming spot and has hosted the world cliff diving championships. Not sure it’s an appropriate example? But I may be wrong 😊 thanks

[biscuitninja]

you are credit to science dave I have learnt a lot from you. Love your chanel

[Miradc_tv]

I love your contents so much

Am well loaded for ecology exams tomorrow 😊

[crippldhobnob]

I just left this comment to let you that read this know you are amazing, everything will be ok. Even if you right now are struggling I know you can get through it, I believe in you ❤

[mikesparrow]

Beautifully done, keep the educational lessons coming -, you’re great!

[YandreYak]

hey Dave, some new research is out there regarding the origins of water on Earth. or maybe not very new, but just discovered it this week

[RivBank-oj]

If we played these videos in class they
would actually figure out what the words mean but still forget it in three seconds

[KisakyeMaria-pt]

Thanks sir but may u do me a video while explaining the factors affecting the degree of oxygen in aquatic habitat

[nisharumman]

Great is the Creator 😊
لا إله إلا الله ❤

[Schizniit]

If you haven't had any today, drink water. Not tea, not coffee, not some kind of flavored or sugar water. Drink water. Your body will thank you.

[apertureonline]

Would you say chloride isnt found in 3 states because its bonded to sodium? The oxygen is bound to hydrogen dave. Youd be specific but limit ideas like the black sea makes people float. That excited me.

[missingnola]

Is that ebola virus in the blood animation at 1:50?

[davidpawson]

I'm recycler, reuser and currently posion ivy Dave. Apparently I'm no longer immune to the devil's vine but I'm here to hear and the sheep ain't scared.

[Vegan_Ape]

A meat-eating environmentalist is one hell of an oxymoron if I ever saw one.

Animal agriculture is one of the leading causes of species extinction, habitat destruction, and climate change. More so than all transportation combined. Yet those on top, in power, keep harping on fossil fuels. It's easier to buy an electric car than to change eating habits and take responsibility for our actions.

A new comprehensive study from Oxford University clearly shows that a vegan diet is the best for the planet (and the non-human animals)
The change is simple. Be vegan.

[Schizniit]

You know, you don't HAVE to over-complicate literally EVERY phrase. We're not gonna call you an idiot for using the more simple or more commonly used terms, so just stick with those. It makes you sound a little less pretentious which a lot of us admittedly have a problem with.

[Adam____iChad]

Professor Dave do you believe in a god