“Where does seaweed go to look for a job?”/“The Kelp Wanted section.”

Many newspapers have a “help wanted” section. Kelp isn’t that wanted, but there’s a riddle:
 
Q: Where does seaweed go to look for a job?
A: The “Kelp Wanted” section of the newspaper.

 
The “Kelp Wanted” joke was posted on the newsgroup alt.humor.puns on November 15, 2002. The joke has been printed on an image.
 
 
Wikipedia: Kelp
Kelps are large seaweeds (algae) belonging to the brown algae (Phaeophyceae) in the order Laminariales. There are about 30 different genera.
 
Kelp grows in “underwater forests” (kelp forests) in shallow oceans, and is thought to have appeared in the Miocene, 23 to 5 million years ago.
           
Google Groups: alt.humor.puns
Puns of the Weak 11/15/02
Stan Kegel
11/15/02
(...)
Where did the seaweed find a job?
In the “Kelp Wanted” section! (Devin, ß9)
 
19 August 2008, The Gold Coast Bulletin (Southport, Queensland), “Giggles,” pg. 24:
Q. Where did the seaweed find a job?
A. In the `Kelp Wanted’ section
   
Google Books
November 2008, Boys’ Life, “Think & Grin,” pg. 68, col. 3:
Luke: Where did the seaweed find a job?
Pedro: I don’t know.
Luke: In the kelp-wanted section!
Luke Collins, Somers, N.Y.
 
Twitter
Prongo kids games‏
@Prongo
Q: Where did the seaweed find a job? A: in the “Kelp Wanted” section!
1:10 PM - 7 Jul 2009
   
Google Books
nsults Anywhere Kids Presents
Hundreds Of Kids Jokes They Can Tell Anywhere!

By Franklin Yantz
Insults Anywhere
2014
Pg. ?:
Where does seaweed go to look for a job?
The kelp wanted section.
 
Twitter
Ellen DeGeneres‏
@TheEllenShow
Where does seaweed go to look for a job? The Kelp Wanted section. #ClassicJokeFriday
5:51 PM - 20 Mar 2015
 
Google Books
1001 Kid’s Jokes
By Kay Barnham
London, UK: Arcturus Publishing
2016
Pg. ?:
Where does seaweed look for a job?
In the “Kelp Wanted” section of the newspaper.
     
Google Books
Srsly Best Jokes Ever:
Jokes for Kids

By Chantelle Grace
Racine, WI: BroadStreet Kids
2017
Pg. ?:
Where does seaweed go to look for a job?
The kelp wanted section.
 
Twitter
Bailey KING JR‏
@ukcyjgxi571
Where does seaweed go to look for a job? The Kelp Wanted section.
3:25 AM - 22 Nov 2017