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Negaprion acutidens (Rüppell, 1837)
LEMON SHARK
Sharp-toothed Shark; Sharptooth Shark; Sicklefin Lemon Shark; Aprion acutidens Rüppell, 1837; Aprionodon acutiden Rüppell, 1837; Negaprion queenslandicus Whitley, 1939; Squalus acutidens Rüppell, 1837; Aprionodon acutidens queenslandicus Whitley, 1939; Mystidens innominatus Whitley, 1944; Carcharias acutidens Rüppell, 1837

Life   Vertebrata   Fish   Carcharhinidae   Negaprion


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Following modified from Australian Faunal Directory
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http://biodiversity.org.au/afd/taxa/baaf411d-d152-4eae-b348-1837f13fcc9d/ ---> https://biodiversity.org.au/afd/taxa/baaf411d-d152-4eae-b348-1837f13fcc9d/
&pull 20q v5.145 20180528: Error 404 Not Found https://biodiversity.org.au/afd/taxa/baaf411d-d152-4eae-b348-1837f13fcc9d/

Following modified from Taiwan Biodiversity National Information Network
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Kingdom Animalia  
 Phylum Chordata  
 Class Chondrichthyes  
 Order Carcharhiniformes  
 Family Carcharhinidae  
 Genus Negaprion  
  Negaprion acutidens    (Rüppell, 1837) 
Provider: Pofeng Lee& Shoou-Jeng Joung 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Apeionodon acutidens Aprionodon acutidens Aprionodon acutidens queenslandicus Carcharias acutidens Carcharias forskalii Carcharias munzingeri Eulamia odontaspis Hemigaleops fosteri Lamiopsis temmincki Mystidens innominatus Negaprion odontaspis details
Citation: 臺灣魚類誌(沈等, 1993); 中國動物誌-圓口綱及軟骨魚綱(朱等, 2001); FAO Species Catalogue, Vol.4 Sharks of the world
Name Code: 383084
  IUCN Red List:VU  A2abcd+3bcd+4abcd      Marine     
Suggested Link    The Fish Database of Taiwan    FishBase    Discover Life    World Register of Marine Species (WoRMS)  
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Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Negaprion+acutidens&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Animal ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Negaprion+acutidens&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Animal

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Number of matches : 2
Query: SELECT * FROM img WHERE ready=1 and taxon like "Negaprion acutidens%" and (lifeform != "specimen_tag" OR lifeform != "Animal") ORDER BY taxon

Click on the thumbnail to see an enlargement

Negaprion acutidens
Negaprion acutidens
Sicklefin Lemon Shark
(shown with Echeneis naucrates )
ID: 0000 0000 0903 0505 [detail]
© 2003 Joseph Dougherty/ecology.org

Negaprion acutidens
Negaprion acutidens
Sicklefin Lemon Shark (FAO/English)
ID: 0000 0000 0903 0496 [detail]
© 2003 Joseph Dougherty/ecology.org

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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Following modified from FishBase
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Negaprion&speciesname=acutidens ---> http://www.fishbase.org/summary/Negaprion-acutidens.html
http://www.fishbase.org/summary/Negaprion-acutidens.html ---> https://www.fishbase.se/summary/Negaprion-acutidens.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Negaprion acutidens (Rüppell , 1837)

Sicklefin lemon shark Add your observation in Fish Watcher
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Negaprion acutidens   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
  More on author: Rüppell .

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; brackish; reef-associated; depth range 0 - 92 m (Ref. 244 ).   Tropical; 30°N - 32°S, 32°E - 140°W (Ref. 244 )

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: Red Sea and South Africa (including Mauritius, Seychelles, Madagascar) to Philippines, north to Viet Nam, south to Australia. Also from Palau, Marshall Islands, and Tahiti. Recorded from Taiwan (Ref. 4868 ).

Length at first maturity / Size / Weight / Age

Maturity: L m   ? , range 220 - 240 cm
Max length : 380 cm TL male/unsexed; (Ref. 5213 )

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines : 0; Anal soft rays : 0. A large, stocky, yellowish shark with a broad, blunt snout, narrow, smooth-cusped teeth in both jaws, and equal-sized dorsal fins (Ref. 5578 ). Yellowish brown above, paler below (Ref. 9997 ). With two nearly equally large dorsal fins (Ref. 37816 ).

Biology     Glossary (e.g. epibenthic)

Found on continental and insular shelves and terraces (Ref. 244 ). Common on coral reefs (Ref. 5578 ) and in shallow, sandy lagoons and turbid, mangrove swamps (Ref. 6871 ). Feeds on smaller sharks, stingrays and on benthic bony fishes (Ref. 5578 ). Viviparous (Ref. 50449 ). Dangerous if provoked (Ref. 244 ). 1 to 11 of 45 cm young are born per litter (Ref. 1602 ). Meat is utilized fresh and dried salted for human consumption, fins for shark-fin soup base, and liver oil for vitamins (Ref. 244 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Viviparous, placental (Ref. 50449 ), 1-14 per litter (Ref. 6871 ). Gestation period 10-11 months (Ref. 5578; Ref.58048 ). Size at birth about 50 to 70 cm TL (Ref. 9997 ); 45-80 cm TL (Ref.58048). Distinct pairing with embrace (Ref. 205 ). Mating and pupping take place during late spring and early summer (Ref. 37816 ).

Main reference Upload your references | References | Coordinator : Compagno, Leonard J.V. | Collaborators

Compagno, L.J.V. , 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244 )

IUCN Red List Status (Ref. 120744 )

  Endangered (EN)  (A2abcd+3bcd+4abcd); Date assessed: 30 April 2003

CITES (Ref. 118484 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 244 )




Human uses

Fisheries: commercial FAO(Publication : search ) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969 ): 24.7 - 29.1, mean 28.1 (based on 2034 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high]. Trophic Level (Ref. 69278 ):  4.1   ±0.6 se; Based on diet studies. Resilience (Ref. 120179 ):  Very Low, minimum population doubling time more than 14 years (Fec=1). Vulnerability (Ref. 59153 ):  Very high vulnerability (81 of 100) . Price category (Ref. 80766 ):   Medium .

Entered by Carpenter, Kent E. Modified by Casal, Christine Marie V. Fish Forum
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