Editing Marine worm (section)

==Environmental niches==
Marine worms are known to inhabit many different environments, having been found in both fresh and saltwater habitats globally.{{citation needed|date=October 2022}}

Some marine worms are [[Tube worm (body plan)|tube worms]], of which the [[giant tube worm]] lives in waters near underwater [[volcanoes]] and can withstand temperatures up to 90&nbsp;°C (194&nbsp;°F). They share this space with fellow polychaetas known as "pompeii worms" that can resist 105&nbsp;°C waters coming out of vents for short periods of time, making them one of the most heat resistant animals ever recorded (Islam and Schulze-Makuch,2007).<ref name=":0">{{Cite journal |last1=Igawa |first1=Momoko |last2=Kato |first2=Makoto |date=2017-09-20 |editor-last=Thuesen |editor-first=Erik V. |title=A new species of hermit crab, Diogenes heteropsammicola (Crustacea, Decapoda, Anomura, Diogenidae), replaces a mutualistic sipunculan in a walking coral symbiosis |journal=PLOS ONE |language=en |volume=12 |issue=9 |pages=e0184311 |doi=10.1371/journal.pone.0184311 |issn=1932-6203 |pmc=5606932 |pmid=28931020|doi-access=free }}</ref>

Some worms can live in extremely deep [[oceanic trench]]es, such as in the Pacific Ocean off the [[Galápagos Islands]].<ref>{{Cite web |title=Giant tubeworm • MBARI |url=https://www.mbari.org/animal/giant-tubeworm/ |access-date=2023-11-06 |website=MBARI |language=en-US}}</ref>

Marine deep sea polychaetes under the genus ''Osedax'' will colonize at whale falls in many different oceans, using a symbiont that can digest the bones within the carcasses (Jones et al,2007) This earned them the common name of "boneworms," and they are speculated to be a keystone species of these types of environments due to lack of organisms in whale falls without observed ''Osedax'' worms. These whale falls remain undigested for many more years than those observed with marine worm cultivations.<ref>{{Cite journal |last1=Jones |first1=William J |last2=Johnson |first2=Shannon B |last3=Rouse |first3=Greg W |last4=Vrijenhoek |first4=Robert C |date=2008-02-22 |title=Marine worms (genus Osedax ) colonize cow bones |journal=Proceedings of the Royal Society B: Biological Sciences |language=en |volume=275 |issue=1633 |pages=387–391 |doi=10.1098/rspb.2007.1437 |pmid=18077256 |pmc=2596828 |issn=0962-8452}}</ref>

In recent years, marine worms (especially those found in the ocean) have been observed ingesting microplastic particles found in the oceans. This trend is concerning many scientists, as marine worms act as an important food source for many fish and wading birds. Marine worms are often [[Keystone Species|keystone species]] in an ecosystem, and the introduction of plastic in the oceans not only diminishes the growth rates of the marine worms, but also affects the food chain of that ecosystem.<ref>{{cite web |title=Limnology and Oceanography |url=https://aslo.org/page/limnology-&-oceanography |work=The Association for the Sciences of Limnology and Oceanography}}</ref>