Classification / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlinae
Etymology: Crenicichla: Latin, crenulatus = cut, clipped + Greek, kichle = wrasse (Ref. 45335); ploegi: Named in honor of the Dutch ichthyologist Alex Ploeg (Ref. 119086).
Eponymy: Dr Alex A Ploeg (d: 2014) was a Dutch ichthyologist who was Secretary General of Ornamental Fish International (2004–2014) and Secretary General of the European Pet Organization (2006–2014). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Tropical
South America, Brazil
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 19.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 119086); 11.6 cm SL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 18 - 20; Μαλακές ραχιαίες ακτίνες (συνολικά) : 13 - 15; Εδρικές άκανθες: 3; Μαλακές εδρικές ακτίνες: 9 - 12. Diagnosis: Crenicichla ploegi is placed in the C. saxatilis species group by having a humeral blotch even in the smallest specimens observed, less than 80 scales in the E1 row (58–71), dimorphic males with many light dots scattered on the flank, and infraorbital series with very slender lacrimal bone and 5 separate post-lacrimal tubular infraorbitals; distinguished from all other species of the C. saxatilis group by the presence of dark spots and vermiculations on snout, interorbital area and dorsally on head in many adults up to 146.6 mm SL vs. dark markings absent or present only in juveniles but absent in adults (head uniformly dark gray in adults from 80 mm SL), and by the presence of a deep and strongly pigmented lateral band present in both juveniles and adults, occupying a depth of 4–6 horizontal scale rows vs. lateral band narrower, occupying a depth of 2–3 horizontal scale rows, and conspicuous only in juveniles and smaller specimens, faded or absent in larger specimens; Crenicichla ploegi is more elongate (body depth 17.8–21.7% SL) and has more scales in the E1 row (58–71 scales) than C. brasiliensis, C. britskii, C. frenata, C. isbrueckeri, C. labrina, C. lepidota, C.proteus, C. santosi, C. saxatilis and C. semicincta (body depth more than 21% SL, and fewer than 56 scales in the E1 row); Crenicichla ploegi differs from C. alta, C. albopunctata, C. anthurus, C. coppenamensis, C. pydanielae and C. sipaliwini by having the humeral blotch situated almost entirely below the anterior branch of the lateral line vs. humeral blotch with center on the level of the anterior branch of the lateral line (Ref. 119086).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Varella, H.R., M.V. Loeb, Lima F.C.T. and S.O. Kullander, 2018. Crenicichla ploegi, a new species of pike-cichlid of the C. saxatilis group from the Rio Juruena and upper Rio Paraguai basins in Brazil, with an updated diagnosis and biogeographical comments on the group (Teleostei: Cichlidae). Zootaxa 4377(3):361-386 (Ref. 119086)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00338 - 0.01626), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).
