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Gerres oblongus Cuvier, 1830
Largebodied Silverbiddy; Slender-bodied Silver-biddy; Gerres macrosoma Bleeker, 1854

Life   Vertebrata   Fish   Gerreidae   Gerres

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Kingdom Animalia  
 Phylum Chordata  
 Class Actinopterygii  
 Order Perciformes  
 Family Gerreidae  
 Genus Gerres  
  Gerres oblongus    Cuvier, 1830 
Provider: Kwang-Tsao Shao 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Equla oblongus Gerres gigas Gerres macrosoma   details
Citation: 臺灣魚類誌(沈等, 1993)
Character: Body compressed, elongate, slender, its depth 3.1 to 3.4 times in standard length; anterodorsal profile very slightly convex. Snout long, subequal to eye diameter. Fin spines slender; Second dorsal fin spine longest, 19-26% fo SL (mean 23%); second anal-fin spine short, about 2/3 length of base of anal fin, even shorter in smaller fish; pectoral fins short, tip of depressed fins reaching almost to or just past level of anus; caudal fin very deeply forked, but lobes not exceptionally long, longest caudal-fin ray about 1/3 standard length. Scales on lateral line 44 to 46 to base of caudal fin; 5.5 to 6 scales between lateral line and base of fifth dorsal-fin spineBody silvery, blue dorsally in life, but lilac brown in some market specimens; up to 5 columns of horizontally elongated spots on sides of trunk appearing as faint bars in some cases; dusky tip to dorsal fin, other fins pale. 
Habitat: Prefers coralline areas. Migrates to specific sandy areas near outer reef edge to spawn in late afternoons during full moon. Feeds on small benthic organisms living on sandy bottoms. In Palau, migrates to specific sandy spots near the outer reef edge to s 
Distribution: Indo-Pacific: Red Sea and East Africa to Samoa, north to Ryukyu Islands, south to New Caledonia; east to Tonga. It is a common species in Taiwan except eastern part. 
Utility: Marketed fresh. 
Name Code: 381684
  IUCN Red List:LC       Marine     
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Updated: 2020-01-22 22:28:16 gmt
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