Exocoetus obtusirostris: Difference between revisions
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{{short description|Species of fish}} |
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{{Italic title}} |
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{{Speciesbox |
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| status = LC |
| status = LC |
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| status_system = IUCN3.1 |
| status_system = IUCN3.1 |
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| status_ref = <ref name=iucn>{{ |
| status_ref = <ref name="iucn status 20 November 2021">{{cite iucn |author=Collette, B. |author2=Singh-Renton, S. |author3=Robertson, R. |author4=Marechal, J. |author5=Aiken, K.A. |author6=Dooley, J. |author7=Oxenford, H. |author8=Pina Amargos, F. |author9=Kishore, R. |date=2015 |title=''Exocoetus obtusirostris'' |volume=2015 |page=e.T190163A15549494 |doi=10.2305/IUCN.UK.2015-4.RLTS.T190163A15549494.en |access-date=20 November 2021}}</ref> |
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| image = Exocoetus obtusirostris.jpg |
| image = Exocoetus obtusirostris.jpg |
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| image_caption = |
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| regnum = [[Animalia]] |
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| phylum = [[Chordata]] |
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| classis = [[Actinopterygii]] |
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| ordo = [[Beloniformes]] |
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| familia = [[Exocoetidae]] |
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| genus = ''[[Exocoetus]]'' |
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| species = '''''E. obtusirostris''''' |
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| synonyms =*''Exocoetus gaussianus''<small> Lampe, 1914</small> |
| synonyms =*''Exocoetus gaussianus''<small> Lampe, 1914</small> |
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*''Exocoetus holubii''<small> Steindachner, 1881</small> |
*''Exocoetus holubii''<small> Steindachner, 1881</small> |
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'''''Exocoetus obtusirostris''''', commonly known as the '''oceanic two-wing flyingfish''' or the '''blunt-snouted flyingfish''',<ref name=iucn/> is a species of [[Actinopterygii|ray-finned fish]] native to the tropical and subtropical western Atlantic Ocean. It has the ability to glide above the surface of the water to escape from [[Predation|predators]]. |
'''''Exocoetus obtusirostris''''', commonly known as the '''oceanic two-wing flyingfish''' or the '''blunt-snouted flyingfish''',<ref name="iucn status 20 November 2021" /> is a species of [[Actinopterygii|ray-finned fish]] native to the tropical and subtropical western Atlantic Ocean. It has the ability to glide above the surface of the water to escape from [[Predation|predators]]. |
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==Description== |
==Description== |
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The species can reach a length of {{convert|25|cm|in|0|abbr=on}}. It is similar in appearance to the [[Exocoetus volitans|tropical two-wing flyingfish]] (''Exocoetus volitans'') which shares much of its range, but differs in certain characteristics; the head is quite blunt, the forehead sloping steeply down in front of the eyes; the [[pectoral fin]]s extend as far as the base of the caudal fin; the origin of the anal fin is slightly in front of the origin of the dorsal fin, and the dorsal fin is colourless.<ref name=Ray>{{cite book|last1=Ray|first1=Carleton|last2=Robins|first2=C. Richard|title=A Field Guide to Atlantic Coast Fishes: North America |url=https://books.google.com/books?id=kQdQDAAAQBAJ&pg=PT121 |year=2016 |publisher=Houghton Mifflin Harcourt |isbn=978-0-544-53083-6 |page=103}}</ref> Both these two-winged species have very small pelvic fins, whereas other so called four-winged species of flyingfish have pelvic fins that extend at least as far as the origin of the anal fin.<ref name=Ray/> Like all flying-fishes, ''E. obtusirostris'' exhibits [[countershading]], being darkish blue dorsally and white ventrally.<ref>{{cite book|last1=Snyder|first1=David B.|last2=Burgess|first2=George H.|title=Marine Fishes of Florida |url=https://books.google.com/books?id=UFUjDAAAQBAJ&pg=PA99 |year=2016 |publisher=JHU Press|isbn=978-1-4214-1872-8 |page=99}}</ref> |
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==Distribution and habitat== |
==Distribution and habitat== |
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At one time '' |
At one time ''E. obtusirostris'' was considered to be a circum-global species, but the similar populations of different oceans were later split into three separate species. As now understood, it is [[Endemism|endemic]] to tropical and subtropical parts of the Atlantic Ocean. In the western Atlantic its range includes the [[Caribbean Sea]] and the [[Gulf of Mexico]] and in the eastern Atlantic it extends from [[Namibia]] to [[Madeira]], the [[Azores]] and possibly the westernmost [[Mediterranean Sea]]. It occurs in surface waters, both near the coast and in the open ocean, at depths down to about {{convert|20|m|ft|0|abbr=on}}.<ref name="iucn status 20 November 2021" /> |
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==Ecology== |
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The diet of ''E. obtusirostris'' consists of small planktonic invertebrates, mostly [[copepod]]s and [[Chaetognatha|chaetognaths]]. It is consumed by various predatory fish and by squids, dolphins and seabirds. Fish become mature when they are about {{convert|15|cm|in|0|abbr=on}} in length. The female produces a number of bundles of eggs over a period of around five days, producing an average of 10,000 eggs. All fish will die soon after breeding.<ref name="iucn status 20 November 2021" /> |
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==Status== |
==Status== |
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''Exocoetus obtusirostris'' is not the subject of |
''Exocoetus obtusirostris'' is not the subject of a fishery and no particular threats to it are known. It is common in the Gulf of Mexico but its conservation status in the eastern Atlantic Ocean and the Mediterranean Sea are less well known. The [[International Union for Conservation of Nature]] has listed its status as being of "[[Least-concern species|least concern]]".<ref name="iucn status 20 November 2021" /> |
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==References== |
==References== |
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{{Reflist}} |
{{Reflist}} |
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==External links== |
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[[Category:Exocoetidae]] |
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* {{Commons category-inline|Exocoetus obtusirostris|''Exocoetus obtusirostris''}} |
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* {{FishBase|genus=Exocoetus|species=obtusirostris}} |
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{{Taxonbar|from=Q2314553}} |
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[[Category:Exocoetus|obtusirostris]] |
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[[Category:Fish described in 1866]] |
[[Category:Fish described in 1866]] |
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[[Category:Fish of the Atlantic Ocean]] |
[[Category:Fish of the Atlantic Ocean]] |
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[[Category:Taxa named by Albert Günther]] |
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Latest revision as of 14:17, 8 March 2022
| Exocoetus obtusirostris | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Beloniformes |
| Family: | Exocoetidae |
| Genus: | Exocoetus |
| Species: | E. obtusirostris
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| Binomial name | |
| Exocoetus obtusirostris | |
| Synonyms[2] | |
| |
Exocoetus obtusirostris, commonly known as the oceanic two-wing flyingfish or the blunt-snouted flyingfish,[1] is a species of ray-finned fish native to the tropical and subtropical western Atlantic Ocean. It has the ability to glide above the surface of the water to escape from predators.
Description[edit]
The species can reach a length of 25 cm (10 in). It is similar in appearance to the tropical two-wing flyingfish (Exocoetus volitans) which shares much of its range, but differs in certain characteristics; the head is quite blunt, the forehead sloping steeply down in front of the eyes; the pectoral fins extend as far as the base of the caudal fin; the origin of the anal fin is slightly in front of the origin of the dorsal fin, and the dorsal fin is colourless.[3] Both these two-winged species have very small pelvic fins, whereas other so called four-winged species of flyingfish have pelvic fins that extend at least as far as the origin of the anal fin.[3] Like all flying-fishes, E. obtusirostris exhibits countershading, being darkish blue dorsally and white ventrally.[4]
Distribution and habitat[edit]
At one time E. obtusirostris was considered to be a circum-global species, but the similar populations of different oceans were later split into three separate species. As now understood, it is endemic to tropical and subtropical parts of the Atlantic Ocean. In the western Atlantic its range includes the Caribbean Sea and the Gulf of Mexico and in the eastern Atlantic it extends from Namibia to Madeira, the Azores and possibly the westernmost Mediterranean Sea. It occurs in surface waters, both near the coast and in the open ocean, at depths down to about 20 m (66 ft).[1]
Ecology[edit]
The diet of E. obtusirostris consists of small planktonic invertebrates, mostly copepods and chaetognaths. It is consumed by various predatory fish and by squids, dolphins and seabirds. Fish become mature when they are about 15 cm (6 in) in length. The female produces a number of bundles of eggs over a period of around five days, producing an average of 10,000 eggs. All fish will die soon after breeding.[1]
Status[edit]
Exocoetus obtusirostris is not the subject of a fishery and no particular threats to it are known. It is common in the Gulf of Mexico but its conservation status in the eastern Atlantic Ocean and the Mediterranean Sea are less well known. The International Union for Conservation of Nature has listed its status as being of "least concern".[1]
References[edit]
- ^ a b c d e Collette, B.; Singh-Renton, S.; Robertson, R.; Marechal, J.; Aiken, K.A.; Dooley, J.; Oxenford, H.; Pina Amargos, F.; Kishore, R. (2015). "Exocoetus obtusirostris". IUCN Red List of Threatened Species. 2015: e.T190163A15549494. doi:10.2305/IUCN.UK.2015-4.RLTS.T190163A15549494.en. Retrieved 20 November 2021.
- ^ a b Bailly, Nicolas (2018). "flyimg fish Günther, 1866". WoRMS. World Register of Marine Species. Retrieved 29 July 2018.
- ^ a b Ray, Carleton; Robins, C. Richard (2016). A Field Guide to Atlantic Coast Fishes: North America. Houghton Mifflin Harcourt. p. 103. ISBN 978-0-544-53083-6.
- ^ Snyder, David B.; Burgess, George H. (2016). Marine Fishes of Florida. JHU Press. p. 99. ISBN 978-1-4214-1872-8.
External links[edit]
Media related to Exocoetus obtusirostris at Wikimedia Commons- Froese, Rainer; Pauly, Daniel (eds.) (2006). "Exocoetus obtusirostris" in FishBase. April 2006 version.
