Classification / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Cheirodontinae
Etymology: Serrapinnus: Latin, serran, serranus, saw and a fish of genus Serranus + Latin, pinna = spiny, thorn (Ref. 45335); potiguar: The name refers to 'potiguar', a term traditionally used in Brazil to refer to someone born in the Rio Grande do Norte State. An adjective..
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
; स्वच्छ जल, अलवण जल बेनथोपिलाजिक. Tropical
South America: Rio Ceará-Mirim basin, Rio Grande do Norte State, Brazil.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.2 cm SL पुल्लिंग / अलिंग; (Ref. 96867)
Short description
आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय सौफट रेज़ (सम्पूर्ण): 11. Serrapinnus potiguar can be diagnosed from all congeners by the shape and arrangement of the ventral procurrent caudal-fin rays of mature males, where the hypertrophied elements are scimitar-shaped and arranged in a semi-circle through the ventral profile of the caudal peduncle (vs. hypertrophied elements rod-shaped or pointed distally, arranged parallel to each other). It differs further by having 5 cusps in the premaxillary and dentary teeth (vs. 7 to 9 in S. calliurus, S. micropterus, and S. piaba, 9 to 11 in S. sterbai, and 10 to 12 in S. gracilis and S. littoris), terminal mouth (vs. slightly superior mouth in S. microdon), an incomplete lateral line (vs. complete lateral line in S. heterodon), dorsal fin mostly hyaline (vs. dorsal fin with an anterior and proximal dark blotch in S. notomelas), and by lacking black spot in the posteroventral region of the abdomen (vs. present in S. kriegi) (Ref. 96867).
The type locality, the rio Ceará-Mirim, is characterized by clear and transparent water, sandy
bottom high depth 1.2 m, slow to moderate water current and dense floating and submerse vegetation. Sympatric and synotopic with Compsura heterura, Serrapinnus heterodon and S. piaba in the type locality. Feeds mainly on vegetal matter and algae, but also takes insects and microcrustaceans (Ref. 96867).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
Jerep, F.C. and L.R. Malabarba, 2014. A new species of Serrapinnus Malabarba, 1998 (Characidae: Cheirodontinae) from Rio Grande do Norte State, northeastern Brazil. Neotrop. Ichthyol. 12(2):301-308. (Ref. 96867)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
अधिक जानकारी
आम नामउपशब्दचपायचयपरभक्षीईकोटोकसीकोलौजीपुनरुत्पत्तिपरिपक्व अवधिमछलीऔ का अंडे देनाSpawning aggregationFecundityअंडेEgg development
Age/Sizeबाढ़Length-weightLength-lengthLength-frequenciesमौरफोमैटरिक्सआकृति विज्ञानलार्वालारवल गतिकीभर्तीबहुतायतBRUVS
संदर्भजलीयकृषिजलीयकृषि रूपरेखाखींचआनुवंशिकीElectrophoresesहैरेटिबिलटीबीमारीप्रक्रमणNutrientsMass conversion
सहयोगीयोतस्वीरेStamps, Coins Misc.ध्वनिसिगुयटिरारफ्तारतैरने के प्रकारगिल क्षेत्रOtolithsदिमागदृष्टि
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00540 - 0.03529), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.6 ±0.5 se; based on size and trophs of closest relatives
लौटाव (Ref.
120179): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
