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Volume 14
Issue 5
10.3390/d14050393
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Article

Early Development of the Endemic Delminichthys krbavensis (Leuciscidae, Cypriniformes) from a Karstic Field in Croatia

by
Zoran Marčić
1,
Ana Jerković
1,
Marko Ćaleta
2,
Ivana Buj
1,
Davor Zanella
1,
Sven Horvatić
1 and
Perica Mustafić
1,*
1
Department of Zoology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
2
Faculty of Teacher Education, University of Zagreb, 10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Diversity 2022, 14(5), 393; https://doi.org/10.3390/d14050393
Submission received: 31 March 2022 / Revised: 9 May 2022 / Accepted: 12 May 2022 / Published: 16 May 2022
(This article belongs to the Special Issue Biodiversity in Karst Landscapes)
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Abstract

This is the first report of the early development for the endemic Krbava minnow Delminichthys krbavensis from a karstic field in Croatia, and the first report of any species of the genus Delminichthys. The description is based on basic morphometric measures and meristic counts during a 48-day observation of embryos and larvae acquired from successful spawning and rearing in an aquarium. The mean total length of larvae at the time of hatching was 3.12 mm. Mouth opening and independent feeding and intestinal function were observed after day 11 post-hatching (PH) at which time the yolk sac was completely absorbed in all individuals. Flexion of the urostyle began after day 18 PH and was completed by day 23 PH. Pectoral fins developed on day 7 PH, pelvic fins begin to develop by day 44 PH and the formation of caudal, dorsal and anal fin was complete by day 48 PH, when individuals presented the full set of soft rays. Understanding its early development is particularly valuable in assessing the environmental impacts on this endangered species and is essential for its effective monitoring and conservation.
Keywords: ontogeny; Krbava minnow; endangered species ontogeny; Krbava minnow; endangered species

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MDPI and ACS Style

Marčić, Z.; Jerković, A.; Ćaleta, M.; Buj, I.; Zanella, D.; Horvatić, S.; Mustafić, P. Early Development of the Endemic Delminichthys krbavensis (Leuciscidae, Cypriniformes) from a Karstic Field in Croatia. Diversity 2022, 14, 393. https://doi.org/10.3390/d14050393

AMA Style

Marčić Z, Jerković A, Ćaleta M, Buj I, Zanella D, Horvatić S, Mustafić P. Early Development of the Endemic Delminichthys krbavensis (Leuciscidae, Cypriniformes) from a Karstic Field in Croatia. Diversity. 2022; 14(5):393. https://doi.org/10.3390/d14050393

Chicago/Turabian Style

Marčić, Zoran, Ana Jerković, Marko Ćaleta, Ivana Buj, Davor Zanella, Sven Horvatić, and Perica Mustafić. 2022. "Early Development of the Endemic Delminichthys krbavensis (Leuciscidae, Cypriniformes) from a Karstic Field in Croatia" Diversity 14, no. 5: 393. https://doi.org/10.3390/d14050393

APA Style

Marčić, Z., Jerković, A., Ćaleta, M., Buj, I., Zanella, D., Horvatić, S., & Mustafić, P. (2022). Early Development of the Endemic Delminichthys krbavensis (Leuciscidae, Cypriniformes) from a Karstic Field in Croatia. Diversity, 14(5), 393. https://doi.org/10.3390/d14050393

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