Classification / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335); gracilifur: Specific name derived from Latin 'gracilis', slender, and 'fur', thief; in reference to its slender body and paedophagous diet, it steals fry from buccal cavities of mouthbrooding cichlids; specific name noun in apposition (Ref. 127594).
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি সমুদতলে ভাসমান বেনথোপেলাজিক. Tropical
Africa: Lake Edward system (Ref. 127594).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 10.3 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 127594)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় কাঁটা (মোট ) : 15; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 9 - 10; পায়ূ কাঁটা : 3; পায়ূর নরম পাখনা্তুন্ড: 8 - 9; কশেরুকা : 29 - 30. Diagnosis: Haplochromis gracilifur differs from all other known paedophages from Lake Edward by its shorter premaxillary pedicel, 18.1-21.6% of head length vs. 21.6-29.1%, smaller number of lower lateral line scales, 7-9 vs. 9-15, exceptionally 7, and bicuspid outer teeth with long minor cusps (Ref. 127594). It resembles H. molossus and H. taurinus by its rounded jaws and small lachrymal bones; it differs from both by its more slender body, 30.2-34.8% of standard length vs. 33.5-38.6% and 33.9-40.1%, respectively; it is further distinct from H. taurinus by its shorter lower jaws, 42.4-44.7% of head length vs. 44.5-51.3%, and smaller eyes, 29.0-32.3% of head length vs. 32.9-40.2%; from H. molossus by its more slender jaws, 61.9-69.4% of lower jaw length vs. 67.0-87.0%, steeper gape inclination, 40-50° vs. 20-30°, and more gentle snout inclination, 10-20° vs. 45-55° (Ref. 127594). In addition, it has more outer teeth in upper jaw than H. relictidens and fewer than H. paradoxus, 26-35 vs. 16-26 and 36-65, respectively; clearly distinct from both by its smaller lachrymal bones, 13.7-14.3% of head length vs. 15.8-18.4% and 14.7-21.5%, respectively; further separated from H. relictidens by lower jaws rounded, whereas pointed in latter (Ref. 127594). Males of H. gracilifur have bright red flanks with two horizontal stripes vs. different colour patterns in all other paedophages (Ref. 127594).
This species has a paedophagous diet (Ref. 127594).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Vranken, N., M. Van Steenberge and J. Snoeks, 2019. Grasping ecological opportunities: not one but five paedophagous species of Haplochromis (Teleostei: Cichlidae) in the Lake Edward system. Hydrobiologia 832(1):105-134. (Ref. 127594)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00674 - 0.03099), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): উচ্চ, সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৫ মাস (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
