Talk:Dolphin/Archive 5

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Archive 5

Captivity map

Dolphin#Controversy could use a map showing where around the world dolphins are held. I was inspired by [1] but can't find a readably large version. -- Beland (talk) 03:05, 31 July 2019 (UTC)

And why would you need a map? I do not understand. DolphinLover300 (talk) 21:17, 16 April 2021 (UTC)

edit : I see it now, any autoconfirmed can help 🐬DolphinLover🐬 (talk) 22:21, 21 April 2021 (UTC)

edit : I am auto confirmed 🐬DolphinLover🐬 (talk) 22:24, 21 April 2021 (UTC)

I agree a map definitely helped.Rustyboy23 (talk) 22:01, 24 April 2021 (UTC)

yeah @Rustyboy23 🐬DolphinLover🐬 (talk) 02:18, 2 May 2021 (UTC)

Dolphin#Controversy could also use the attention of someone who knows what they’re doing to weed out all the stuff about orcas. Mr Larrington (talk) 11:11, 23 April 2022 (UTC)

Semi-protected edit request on 20 December 2021

I request that you guys put in a Roque Sevilla file!!!!!!!!!!!!!!!!!! 81.111.116.88 (talk) 15:58, 20 December 2021 (UTC)

 Question: What does "Roque Sevilla" have to do with dolphins exactly?

Also, welcome to Wikipedia!

WinterWarp (talk) 16:08, 20 December 2021 (UTC)

 Not done: it's not clear what changes you want to be made. Please mention the specific changes in a "change X to Y" format and provide a reliable source if appropriate. ScottishFinnishRadish (talk) 16:50, 20 December 2021 (UTC)

Scope

I removed the "infobox" providing a taxonomy of cetaceans from the page, not for the first time. The page also contains a tree arrangement and other data found in articles whose scope is a taxon, albeit under a common name. I am about to remove those as well. The scope of this page is a common name, which requires little more than a disambiguation page. ~ cygnis insignis 13:46, 1 March 2022 (UTC)

Black Sea die off in the current Russian/Ukrainian war

This could be of interest to improving the human threats part of the article. Apparently, the heavy Russian submarine sonar and missile firings in the current 2022 Russian invasion of Ukraine is having a deleterious effect on Black Sea dolphins. More than 5,000 dolphins die in Black Sea as a result of Russia’s war, Kyiv Independent, 20 July 2022. N2e (talk) 01:05, 21 July 2022 (UTC)

That's very specific (like I'm sure the Gulf Wars affected local dolphin populations), and I'd say leave that discussion at Black Sea bottlenose dolphin Dunkleosteus77 (talk) 01:17, 21 July 2022 (UTC)

Content about the impacts of climate change

I notice neither the article not the talk page archive mentions the words "climate change" yet. My proposal is to move a text block (or a shortened version of it) from its current location at effects of climate change on oceans to here. The text block was added in 2021 by a new user (User:Joellescott) who hasn't edit again since then, see this edit. This is the text block:

Dolphins are marine mammals with broad geographic extent, making them susceptible to climate change in various ways. The most common effect of climate change on dolphins is the increasing water temperatures across the globe. This has caused a large variety of dolphin species to experience range shifts, in which the species move from their typical geographic region to warmer waters.

In California, the 1982-83 El Niño warming event caused the near-bottom spawning market squid to leave southern California, which caused their predator, the pilot whale, to also leave. As the market squid returned six years later, Risso's dolphins came to feed on the squid. Bottlenose dolphins expanded their range from southern to central California, and stayed even after the warming event subsided. The Pacific white-sided dolphin has had a decline in population in the southwest Gulf of California, the southern boundary of their distribution. In the 1980s they were abundant with group sizes up to 200 across the entire cool season. Then, in the 2000s, only two groups were recorded with sizes of 20 and 30, and only across the central cool season. This decline was not related to a decline of other marine mammals or prey, so it was concluded to have been caused by climate change as it occurred during a period of warming. Additionally, the Pacific white-sided dolphin had an increase in occurrence on the west coast of Canada from 1984 to 1998.

In the Mediterranean, sea surface temperatures have increased, as well as salinity, upwelling intensity, and sea levels. Because of this, prey resources have been reduced causing a steep decline in the short-beaked common dolphin Mediterranean subpopulation, which was deemed endangered in 2003. This species now only exists in the Alboran Sea, due to its high productivity, distinct ecosystem, and differing conditions from the rest of the Mediterranean.

In northwest Europe, many dolphin species have experienced range shifts from the region's typically colder waters. Warm water dolphins, like the short-beaked common dolphin and striped dolphin, have expanded north of western Britain and into the northern North Sea, even in the winter, which may displace the white-beaked and Atlantic white-sided dolphin that are in that region. The white-beaked dolphin has shown an increase in the southern North Sea since the 1960s because of this. The rough-toothed dolphin and Atlantic spotted dolphin may move to northwest Europe. In northwest Scotland, white-beaked dolphins (local to the colder waters of the North Atlantic) have decreased while common dolphins (local to warmer waters) have increased from 1992 to 2003. Additionally, Fraser's dolphin, found in tropical waters, was recorded in the UK for the first time in 1996.

River dolphins are highly affected by climate change as high evaporation rates, increased water temperatures, decreased precipitation, and increased acidification occur. River dolphins typically have a higher densities when rivers have a lox index of freshwater degradation and better water quality. Specifically looking at the Ganges river dolphin, the high evaporation rates and increased flooding on the plains may lead to more human river regulation, decreasing the dolphin population.

As warmer waters lead to a decrease in dolphin prey, this led to other causes of dolphin population decrease. In the case of bottlenose dolphins, mullet populations decrease due to increasing water temperatures, which leads to a decrease in the dolphins' health and thus their population. At the Shark Bay World Heritage Area in Western Australia, the local Indo-Pacific bottlenose dolphin population had a significant decline after a marine heatwave in 2011. This heatwave caused a decrease in prey, which led to a decline in dolphin reproductive rates as female dolphins could not get enough nutrients to sustain a calf. The resultant decrease in fish population due to warming waters has also influenced humans to see dolphins as fishing competitors or even bait. Humans use dusky dolphins as bait or are killed off because they consume the same fish humans eat and sell for profit. In the central Brazilian Amazon alone, approximately 600 pink river dolphins are killed each year to be used as bait. Another side effect of increasing water temperatures is the increase in toxic algae blooms, which has caused a mass die-off of bottlenose dolphins.   

Some of this is probably too detailed but overall I think some content on the impacts of climate change on dolphins would be WP:DUE. Comments? EMsmile (talk) 10:03, 19 October 2022 (UTC)

P.S. I've just left a similar comment on the talk page of pinniped (seals) as there is also a text block that should be moved to there, in my opinion. - Compare also with polar bear#Climate change which already has good content about climate change (not surprisingly, as polar bears are often "the face" of climate change...) EMsmile (talk) 10:06, 19 October 2022 (UTC)

This article (and pinniped) both need something, I agree. I'm a little concerned about the size of the addition, so if you can find some good ways to cut it down some would probably be best, but I wouldn't be opposed to pasting this whole block in and having the editors-at-large have at it. I see it needs some copyediting, but again, that can be worked post-insertion. - UtherSRG (talk) 10:55, 19 October 2022 (UTC)

However, I am concerned that we may be losing some attribution by copying this whole-cloth from another article. Hrm... Now that I think that, perhaps add a sumarry of this and use a {{main}} section heading to point to this whole text in the climate change article? - UtherSRG (talk) 10:57, 19 October 2022 (UTC)

Hi UtherSRG: An alternative could be to create a little article effects of climate change on dolphins and then to have a short summary and link to it from dolphins. - Or set it up similarly to the section at polar bear: polar bear#Climate change, i.e. without a sub-article but good summary style. EMsmile (talk) 11:41, 19 October 2022 (UTC)

I've moved the content from effects of climate change on oceans to here now, as per talk page suggestion above. It might need condensing, perhaps move some content to the relevant sub-articles on specific dolphin species, like river dolphins? Is it OK if I leave this up to the people watching this page? EMsmile (talk) 09:32, 21 October 2022 (UTC)

References

EMsmile (talk) 10:03, 19 October 2022 (UTC)

Semi-protected edit request on 16 January 2023

I would like to correct some mistakes Subbbbbbbb (talk) 16:59, 16 January 2023 (UTC)

Please read the instructions at WP:ER. You're going to need to be more specific. OhNoitsJamie ^Talk 17:03, 16 January 2023 (UTC)

 Not done: it's not clear what changes you want to be made. Please mention the specific changes in a "change X to Y" format and provide a reliable source if appropriate. UtherSRG (talk) 17:15, 16 January 2023 (UTC)

Edit

Please remove the word, “are” as I was unable to edit:

This term has often been applied in the US, mainly in the fishing industry, to all small cetaceans (dolphins and porpoises) are considered to be porpoises,[8] while the fish dorado is called dolphin fish.[9 67.161.204.22 (talk) 23:12, 13 June 2023 (UTC)

Edit request

In https://en.wikipedia.org/wiki/Dolphin#Controversy

> Tião had suffered harassment by human visitors, including attempts to stick ice cream sticks down her blowhole.

Change second to last word "her" to "his".

See also https://en.wikipedia.org/wiki/Ti%C3%A3o_(dolphin) 2A02:2454:259:CA00:BC3C:35F:5732:1785 (talk) 00:55, 25 June 2023 (UTC)

No taxobox

There should be one for more information and to see conservation status. 70.26.116.60 (talk) 16:33, 28 June 2023 (UTC)

Semi-protected edit request on 15 July 2023

I wish to edit the dolphin page Nascarfan8891 (talk) 03:45, 15 July 2023 (UTC)

 Not done: this is not the right page to request additional user rights. You may reopen this request with the specific changes to be made and someone may add them for you, or if you have an account, you can wait until you are autoconfirmed and edit the page yourself. Xan747 (talk) 03:50, 15 July 2023 (UTC)

Semi-protected edit request on 15 July 2023 (3)

I wish to make en edit on the dolphin page Nascarfan8891 (talk) 03:51, 15 July 2023 (UTC)

 Not done: it's not clear what changes you want to be made. Please mention the specific changes in a "change X to Y" format and provide a reliable source if appropriate. LilianaUwU ^{(talk / contributions)} 03:52, 15 July 2023 (UTC)

Longevity of Orcas in captivity - information needs updating

A section discussing the longevity of orcas states that most captive orcas live into their 20s, but that two orcas, Corky II and Lolita are in their 40s. This information is very old as Corky II is well into her 50s and Lolita is deceased. The information is nearly a decade old and needs updating. 73.204.233.33 (talk) 02:35, 1 March 2024 (UTC)