Talk:Fish locomotion

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Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 21:28, 16 January 2022 (UTC)

Locomotion in water of Fish locomotion?
since fish locomotion is mainly about locomotion in water, shouldn't we include dolphin's mode of move about? And, what about the locomotion of squids, shrimps, octupuses? Xah Lee 23:00, 2005 May 5 (UTC)


 * That's a lot broader than this. An article on aquatic locomotion or locomotion in water may be appropriate. Richard001 (talk) 03:51, 25 July 2008 (UTC)

The role of scales in fish locomotion?
I observe that when salmon skin is stretched the scales become erect, presenting a very rough surface to the water. When the skin is relaxed, the scales return to become flush with the body presenting a streamlined surface. I suggest that it is not only the wiggle that propels the fish, but also the effect of this property of the skin/scales that may account for the efficiency of fish, such as the salmon, swimming up stream against powerful currents. The effect of the scales suggests a rowing motion, which could be activated by the stretching and contraction of the skin during the wiggle motion. I am totally ignorant of this subject and the literature so perhaps someone could add a better description of this, with appropriate citations, if indeed it is the case that scales play this role in locomotion? I apologise if somehwere in this article this has already been mentioned. Fenton Robb 21:53, 26 January 2007 (UTC)

I have made some enquiries about this and the following response from an expert seems pretty conclusive - "I am sorry that I am not able to provide evidence relating to your hypothesis. However it is worth bearing in mind that the skin of salmon (and other fish) is covered by a protective mucous membrane. It could be argued that this layer would prevent the scales achieving purchase against the surrounding water. In other words it might be like trying to row a boat covered in a plastic bag." Fenton Robb 18:29, 29 January 2007 (UTC)

Dolphin locomotion?
What about the movement of Cetacea? I wonder why they move their tails up and down instead of from side to side like fish. --84.189.124.169 (talk) 19:16, 2 January 2008 (UTC)


 * Although also swimming creatures, dolphins are mammals, and not a species of bony fish (Osteichthyes)! More on dolphin and marine mammal motion can be found here Srobinson55 (talk) 16:30, 28 February 2023 (UTC)

Uh.
Why isn't this just a section of Fish?--Tznkai (talk) 00:33, 14 July 2009 (UTC)

Lack of structure and explanation - effectively a stub?
Although the article has a lot of data (facts) in it there is little information (explanation, hypotheses, etc). Added to this its overall structure seems confused to me. Any information that is included in it is simply fitted into the list of data provided almost as a footnote.

Personally, I came here with a simple question in mind: How do fish manage to swim? Why don't the undulating movements of the "tail" simply cancel themselves out, or even generate a movement backward? However, this article merely itemises, irrespective of how uncommon or common these are, all (?) the many forms of locomotion that can be found in fish. It lacks any detailed explanation of the hydrodynamics of the locomotion itself (or locomotions). Here is an example of a more functional information structure for this topic:- http://www.ux1.eiu.edu/~cfruf/bio4950/fish_locomotion.htm Sadly, while it does contain a simple explanation of the mechanism of locomation itself, it fails to explain how what it terms "Push" and "Reactive Force" forces don't cancel one another out in the same way that "Lift" forces do. Page 85 of Fish Locomotion by Robert W. Blake is on Google and explains the process in a simple diagram (as with other forms of locomation eg eels).

LookingGlass (talk) 06:30, 11 September 2012 (UTC)

Requested move 30 September 2016

 * The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review. No further edits should be made to this section. 

The result of the move request was: Proposer withdrew (non-admin closure) — Andy W. ( talk  · ctb) 21:48, 5 October 2016 (UTC)

Fish locomotion → Fish movement – "Movement" is the WP:COMMONNAME for locomotion. This move will hopefully make it easier for readers to find, understand and engage with the content. Tom (LT) (talk) 23:01, 30 September 2016 (UTC)
 * Oppose My main reason for this is consistency within the encyclopaedia. There are already multiple articles titled Organism X locomotion, but I have yet to find a single article Organism X movement.  Furthermore, the word "locomotion" has a specific meaning of traveling from A to B.  "Movement" is much less specific and could include fish opening their mouths, gill movements, etc. DrChrissy (talk) 23:21, 30 September 2016 (UTC)
 * Oppose for reasons already given by DrChrissy --Epipelagic (talk) 21:39, 1 October 2016 (UTC)


 * Oppose - the subject is commonly known as Animal locomotion (see R. McNeill Alexander). It's simply what the subject is called. It's not our job to try to change it. For what it's worth, the term "fish movement" would mean either "a migration, a mass movement of a population of fish", or at the small scale "a particular movement made by a fish", neither of which are what is meant by locomotion. I also agree with DrChrissy that we have consistently used "x locomotion" in other articles, following our scientific sources, and we should not change that.Chiswick Chap (talk) 07:43, 2 October 2016 (UTC)
 * Withdraw fair points. --Tom (LT) (talk) 10:05, 2 October 2016 (UTC)


 * The above discussion is preserved as an archive of a requested move. Please do not modify it. Subsequent comments should be made in a new section on this talk page or in a move review. No further edits should be made to this section.

Repetition
The article covers some groups in more than one section. This probably requires a reorganisation. Chiswick Chap (talk) 08:15, 11 January 2017 (UTC)

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Acceleration, sustained speed and maneuverability tradeoffs

 * may be a useful source. I may come back to edit the article when I have time to research this aspect a bit more. Cheers, · · · Peter (Southwood) (talk): 08:41, 18 October 2017 (UTC)
 * The article Megalodon uses content from this source which uses the terms: axial swimming, acceleration body form, displacement swimmer, cruising body form, and explains displacement swimmer as "using drag to displace water when swimming", which does not explain much to me. Perhaps these concepts could be explained in the article. · · · Peter (Southwood) (talk): 08:51, 18 October 2017 (UTC)

S.3 Biology -uganda
Generally S.3 biology — Preceding unsigned comment added by 197.239.5.224 (talk) 14:59, 30 January 2022 (UTC)