Talk:Marine habitat

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A fact from Marine habitat appeared on Wikipedia's Main Page in the Did you know column on 28 April 2011 (check views). The text of the entry was as follows:

Did you know... that the umbrella mouth gulper (pictured) lives in deep sea marine habitats where it swallows fish much larger than itself?

A record of the entry may be seen at Wikipedia:Recent additions/2011/April.

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Section sizes

Section size for Marine habitat (32 sections)
Section name	Byte count	Section total
(Top)	2,594	2,594
Overview	8,064	8,064
Ocean currents	3,660	3,660
Topography	46	46
Biomass	1,704	1,704
Coastal	7,871	31,855
Intertidal	648	648
Sandy shores	3,466	3,466
Rocky shores	1,598	1,598
Mudflats	660	660
Mangrove forests and salt marshes	2,395	2,395
Estuaries	3,842	3,842
Kelp forests	5,210	5,210
Seagrass meadows	2,575	2,575
Reefs	1,364	3,590
Rocky reefs	57	57
Coral reefs	2,169	2,169
Surface waters	362	5,409
Surface microlayer	2,942	2,942
Epipelagic zone	2,105	2,105
Open ocean	801	5,986
Deep sea	5,185	5,185
Sea floor	85	1,303
Vents and seeps	302	302
Trenches	752	752
Seamounts	164	164
Anthropogenic impacts	8,068	8,068
Gallery	1,181	1,181
See also	232	232
References	697	1,540
Sources	843	843
External links	457	457
Total	72,099	72,099

This article was the subject of a Wiki Education Foundation-supported course assignment, between 10 January 2022 and 6 May 2022. Further details are available on the course page. Student editor(s): Annsli.Hilton, Dallas.hooks, Aleah.ostrat, Ethanmoss10 (article contribs). Peer reviewers: Peytonw27, Mmurdockgcsu, MRR1993, Ethanmoss10.

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NASA's idea[edit]

We currently say By volume, the ocean provides about 99 percent of the living space on the planet, sourced to NASA. The writer is counting the sea three-dimensionally but the land two-dimensionally. (Or nearly so, since otherwise it would be 100 percent.) Alternatively, they may just be dividing the figure of 3% (the amount of water that is freshwater) by three because the land covers about one third of the Earth's surface. This makes even less sense, and reminds me of the bellboy problem.

If we apply the logic of the NASA writeup to its end, why not count the sky? So much of the ocean is completely devoid of life that it is comparable to the vast areas of open sky. Since we have found birds flying at 10km above the surface, I declare the sky the largest habitat on Earth by far.

I've come to dislike back-and-forth arguments in articles, since it just belays the important points of the writing, so I don't really want to add the sky argument in right now. But perhaps we don't need to bring up the unfair 3D vs 2D comparison in the first place; it should be on point enough to just mention that the ocean is larger by surface area than the land and freshwater habitats combined. Thoughts? —Soap— 17:58, 13 October 2019 (UTC)[reply]

I found something that actually makes the claim even stronger, so the problems with NASA's claim are moot. At least to me, they are ... the article doesn't say anymore that the ocean contains 99% of the Earth's "living space", but that they contain more than 99% of the world's liquid water. —Soap— 01:30, 14 October 2019 (UTC)[reply]