Manta Matcher

{{Short description|Manta ray photo identification database}}

{{Infobox organization

| status = nonprofit

| purpose = Online citizen science database to identify and track manta rays

| parent_organization = Marine Megafauna Foundation, WildMe

| website = https://www.mantamatcher.org

}}

Manta Matcher is a global online database for manta rays.{{cite journal|last1=Town|first1=Christopher|last2=Marshall|first2=Andrea|last3=Nutthaporn|first3=Sebastien|title=Manta Matcher: automated photographic identification of manta rays using keypoint features|journal=Ecology and Evolution|date=2013|volume=3|issue=7|pages=1902–1914|doi=10.1002/ECE3.587|pmid=23919138|pmc=3728933|bibcode=2013EcoEv...3.1902T }}

Creation

It is one of the Wildbook Web applications developed by Wild Me, a 501(c)(3) not-for-profit organization in the United States, and was created in partnership with Andrea Marshall of the Marine Megafauna Foundation.

File:Giant oceanic manta ray.jpg

Manta rays have unique spot patterning on their undersides, which allows for individual identification.{{cite journal|last1=Marshall|first1=A.D.|last2=Dudgeon|first2=C.L.|last3=Bennett|first3=M.B.|title=Size and structure of a photographically identified population of manta rays Manta alfredi in southern Mozambique|journal=Marine Biology|date=2011|volume=158|issue=5|pages=1111–1124|doi=10.1007/s00227-011-1634-6|bibcode=2011MarBi.158.1111M |s2cid=86204140}} Scuba divers around the world can photograph mantas{{cite web|title=Photographing Mantas|url=http://www.mantamatcher.org/photographing.jsp|website=mantamatcher.org}} and upload their manta identification photographs to the Manta Matcher website,{{cite web|title=Participate: Report an Encounter|url=http://mantamatcher.org/submit.jsp|website=mantamatcher.org}} supporting global research and conservation efforts.

Identification of rays

Manta Matcher is a pattern-matching software that eases researcher workload; key spot pattern features are extracted using a scale-invariant feature transform (SIFT) algorithm,{{cite journal|last1=Town|first1=Christopher|last2=Marshall|first2=Andrea|last3=Nutthaporn|first3=Sebastien|title=Manta Matcher: automated photographic identification of manta rays using keypoint features|journal=Ecology and Evolution|date=2013|volume=3|issue=7|pages=1902–1914|doi=10.1002/ECE3.587|pmid=23919138|pmc=3728933|bibcode=2013EcoEv...3.1902T }} which can cope with complications presented by highly variable spot patterns and low contrast photographs.

Purpose and research supported

This citizen science tool is free to use by researchers worldwide. Manta Matcher represents a global initiative to centralize manta ray sightings and facilitate research on these vulnerable species through collaborative studies, including the cross-referencing of regional databases.{{Cite web |last=Steinhoff |first=Nane |date=2023-01-10 |title=First international migration of manta rays confirmed |url=https://oceanographicmagazine.com/news/first-international-migration-of-manta-rays-confirmed/ |access-date=2023-02-09 |website=Oceanographic |language=en-GB}}

Manta Matcher has already supported research{{cite journal|last1=Germanov|first1=Elitza|last2=Marshall|first2=Andrea|title=Running the Gauntlet: regional movement patterns of Manta alfredi through a complex of parks and fisheries|journal=PLOS ONE|date=2014|volume=9|issue=10|page=e110071|doi=10.1371/journal.pone.0110071|pmid=25337865|pmc=4206290|bibcode=2014PLoSO...9k0071G|doi-access=free}} that contributed to the listing of reef mantas (Manta alfredi) on Appendix 1 of the Convention on Migratory Species in November 2014.{{cite news|title=31 Species of Migratory Animals Given UN Protection|url=http://www.smh.com.au/environment/conservation/31-species-of-migratory-animals-given-un-protection-20141110-11js7y.html|publisher=Sydney Morning Herald|date=November 10, 2014}}

References

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