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- Smalleye_hammerhead abstract "The smalleye hammerhead or golden hammerhead (Sphyrna tudes) is a small species of hammerhead shark, family Sphyrnidae, common in the shallow coastal waters of the western Atlantic Ocean from Venezuela to Uruguay. It favors muddy habitats with poor visibility, reflected by its relatively small eyes. Adult males and juveniles are schooling and generally found apart from the solitary adult females. Typically reaching 1.2–1.3 m (3.9–4.3 ft) in length, this shark has a unique, bright golden color on its head, sides, and fins, which was only scientifically documented in the 1980s. As in all hammerheads, its head is flattened and laterally expanded into a hammer-shaped structure called the "cephalofoil", which in this species is wide and long with an arched front margin bearing central and lateral indentations.The yellow-orange pigments of the smalleye hammerhead seem to be acquired from the penaeid shrimp Xiphopenaeus kroyeri, the main food of juvenile sharks, and from sea catfish and their eggs, the main food of adults. The golden color may serve to conceal it from predators such as larger sharks. This species is viviparous, with the developing embryos sustained by a placental connection formed from the depleted yolk sac. Females bear litters of 5–19 pups every year following a gestation period of 10 months. Reproductive seasonality, litter size, and size at maturity vary between geographical regions. Because of its abundance, the smalleye hammerhead is an economically important bycatch of artisanal gillnet fisheries throughout its range and is utilized as food. In recent years, overfishing has caused marked declines in its numbers off Trinidad, northern Brazil, and probably elsewhere. Coupled with its low reproductive rate, this has led the International Union for Conservation of Nature (IUCN) to list it under Vulnerable.".
- Smalleye_hammerhead binomialAuthority Achille_Valenciennes.
- Smalleye_hammerhead class Chondrichthyes.
- Smalleye_hammerhead class Elasmobranchii.
- Smalleye_hammerhead conservationStatus "VU".
- Smalleye_hammerhead conservationStatusSystem "IUCN3.1".
- Smalleye_hammerhead family Hammerhead_shark.
- Smalleye_hammerhead genus Sphyrna.
- Smalleye_hammerhead kingdom Animal.
- Smalleye_hammerhead order Carcharhiniformes.
- Smalleye_hammerhead phylum Chordate.
- Smalleye_hammerhead synonym "Sphyrna bigelowi (S. Springer, 1944)".
- Smalleye_hammerhead thumbnail Sphyrna_tudes2.jpg?width=300.
- Smalleye_hammerhead wikiPageExternalLink Sphyrna-tudes.
- Smalleye_hammerhead wikiPageExternalLink d_golden_hh.htm.
- Smalleye_hammerhead wikiPageExternalLink SpeciesSummary.php?id=55029.
- Smalleye_hammerhead wikiPageExternalLink SmalleyeHammerhead.html.
- Smalleye_hammerhead wikiPageExternalLink 0.
- Smalleye_hammerhead wikiPageID "3111262".
- Smalleye_hammerhead wikiPageRevisionID "592363777".
- Smalleye_hammerhead align "left".
- Smalleye_hammerhead binomial "Sphyrna tudes".
- Smalleye_hammerhead binomialAuthority "Valenciennes, 1822".
- Smalleye_hammerhead caption "Phylogenetic tree of hammerhead sharks.".
- Smalleye_hammerhead classis Chondrichthyes.
- Smalleye_hammerhead colwidth "30".
- Smalleye_hammerhead familia Hammerhead_shark.
- Smalleye_hammerhead genus "Sphyrna".
- Smalleye_hammerhead hasPhotoCollection Smalleye_hammerhead.
- Smalleye_hammerhead imageAlt "Overhead view of a grayish shark with a hammer-shaped head and orange coloring on its head, sides, and fins".
- Smalleye_hammerhead name "Smalleye hammerhead".
- Smalleye_hammerhead ordo Carcharhiniformes.
- Smalleye_hammerhead phylum Chordate.
- Smalleye_hammerhead rangeMap "Sphyrna tudes distribution map.svg".
- Smalleye_hammerhead rangeMapAlt "World map with blue shading along the eastern coast of South America from Venezuela to Uruguay".
- Smalleye_hammerhead rangeMapCaption "Range of the smalleye hammerhead".
- Smalleye_hammerhead regnum "Animalia".
- Smalleye_hammerhead species "S. tudes".
- Smalleye_hammerhead status "VU".
- Smalleye_hammerhead statusSystem "IUCN3.1".
- Smalleye_hammerhead subclassis Elasmobranchii.
- Smalleye_hammerhead synonyms "Sphyrna bigelowi (S. Springer, 1944)".
- Smalleye_hammerhead subject Category:Sphyrnidae.
- Smalleye_hammerhead type Animal.
- Smalleye_hammerhead type Eukaryote.
- Smalleye_hammerhead type Fish.
- Smalleye_hammerhead type Species.
- Smalleye_hammerhead type Animal.
- Smalleye_hammerhead type Fish.
- Smalleye_hammerhead type Organism.
- Smalleye_hammerhead comment "The smalleye hammerhead or golden hammerhead (Sphyrna tudes) is a small species of hammerhead shark, family Sphyrnidae, common in the shallow coastal waters of the western Atlantic Ocean from Venezuela to Uruguay. It favors muddy habitats with poor visibility, reflected by its relatively small eyes. Adult males and juveniles are schooling and generally found apart from the solitary adult females.".
- Smalleye_hammerhead label "Kleinaugen-Hammerhai".
- Smalleye_hammerhead label "Requin-marteau à petits yeux".
- Smalleye_hammerhead label "Smalleye hammerhead".
- Smalleye_hammerhead label "Sphyrna tudes".
- Smalleye_hammerhead label "Малоглазая гигантская акула-молот".
- Smalleye_hammerhead label "قرش أبو مطرقة صغير العيون".
- Smalleye_hammerhead sameAs Kleinaugen-Hammerhai.
- Smalleye_hammerhead sameAs Sphyrna_tudes.
- Smalleye_hammerhead sameAs Mailu-arrain_laugingil.
- Smalleye_hammerhead sameAs Requin-marteau_à_petits_yeux.
- Smalleye_hammerhead sameAs Kleinooghamerhaai.
- Smalleye_hammerhead sameAs m.08s30r.
- Smalleye_hammerhead sameAs Q1150019.
- Smalleye_hammerhead sameAs Q1150019.
- Smalleye_hammerhead wasDerivedFrom Smalleye_hammerhead?oldid=592363777.
- Smalleye_hammerhead depiction Sphyrna_tudes2.jpg.
- Smalleye_hammerhead isPrimaryTopicOf Smalleye_hammerhead.
- Smalleye_hammerhead name "Smalleye hammerhead".
