Talk:Dorsal fin

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Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 7 September 2020 and 11 December 2020. Further details are available on the course page. Student editor(s): JonA288.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 20:15, 17 January 2022 (UTC)[reply]

Wiki Education Foundation-supported course assignment

This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Joe.Perez.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 19:46, 16 January 2022 (UTC)[reply]

Standards

I just read this page for the first time. Saying that dorsal fins are infamous seems somewhat biased. Also there are a lot of sentence fragments, and other grammatical errors that make the last paragraph difficult to understand. I am not a serious editor, but someone should work to clean up this page. 70.127.68.125 (talk) 17:42, 21 February 2009 (UTC) JAHIIIWolf (non member).[reply]

I think it reads fine, now. I don't really see a problem with that mention of the "infamous dorsal sign". --Swift (talk) 22:53, 30 December 2009 (UTC)[reply]

What about discussing the material(s) that comprise dorsal fins? What exactly are they made of? Throughout the internet I've come across a lot of references to "fibrous tissue" relative to marine mammals, but this seems a little vague. Also, I know that fish have bones/cartilaginous structures called "pterygiophores" that support their dorsal fins; do marine mammals have them too? Maybe an expert could elaborate on this? From what I can tell, the dorsal fins, pectoral fins and flukes of all marine mammals are made of the same material, so it might be advisable to create a new page, or perhaps link to an existing page? - Myrddin_Wyllt 9/18/2010

Article Modification

Hello, I read the article and was wondering if the addition of a developmental section has been considered. I see that this was brought up in a previous Talk page post. I understand for teleost fish, the dorsal fin, and others, is composed of the endoskeleton and dermal finrays.^[1] Please refer to the article I have cited as a potential starting point for this addition.

Also, I'm curious if the addition of additional practical applications of the dorsal fin could be added. The article notes the use of dorsal fins to identify cetaceans, but what about potential research uses of fish dorsal fins?

Please let me know your thoughts!Joe.Perez (talk) 02:36, 11 March 2017 (UTC)==[reply]

^ Suzuki, Tohru (2003). "Differentiation of chondrocytes and scleroblasts during dorsal fin skeletogenesis in flounder larvae". Development Growth & Differentiation. 45 (no. 5-6): 435–436. doi:10.1111/j.1440-169X.2003.00711.x. {{cite journal}}: |access-date= requires |url= (help); |issue= has extra text (help)

Structure Section

Hello, I have been working on writing a structural section to add to this article. I am only adding a portion of what I have written just to see if it fits the style and plan for this page. Please let me know what else I can add, or if this section is worth writing. I am hoping to have an image up to label sections of the dorsal fin in bony fish. I appreciate any comments. Thanks!Joe.Perez (talk) 05:36, 19 April 2017 (UTC)==[reply]

Want to understand

{{help}} I read the whole article. And I didn't understand the first paragraph. Which is A dorsal fin is a fin located on the backs of various unrelated marine and freshwater vertebrates, including most fish, cetaceans (whales, dolphins, and porpoises), and the (extinct) ichthyosaurs. I want to know that what the unrelated word actually means. Should not the word be placed by a word related??? Fahim fanatic (talk) 06:24, 27 January 2018 (UTC)[reply]

Yes, it's not clear what the word "unrelated" means in that context. I've reworded the first paragraph so it is perhaps more clear (and less inaccurate). --Epipelagic (talk) 08:13, 27 January 2018 (UTC)[reply]

Discussion

Discuss. Nothing more 85.21.6.194 (talk) 21:07, 15 November 2021 (UTC)[reply]

[1] Suzuki, Tohru (2003). "Differentiation of chondrocytes and scleroblasts during dorsal fin skeletogenesis in flounder larvae". Development Growth & Differentiation. 45 (no. 5-6): 435–436. doi:10.1111/j.1440-169X.2003.00711.x. {{cite journal}}: |access-date= requires |url= (help); |issue= has extra text (help)

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