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Thermal influence on the embryonic development and hatching rate of the flameback pygmy angelfish Centropyge aurantonotus eggs

Published online by Cambridge University Press:  11 October 2019

Raoani Cruz Mendonça Open the ORCID record for Raoani Cruz Mendonça [Opens in a new window] ,
Sarah Pittigliani Ikebata ,
Sérgio Leandro Araújo-Silva ,
João Vitor Azevedo Manhães  and
Mônica Yumi Tsuzuki
Raoani Cruz Mendonça*
Affiliation:
Laboratory of Marine Fishes and Ornamentals (LAPOM), Aquaculture Department, Agricultural Sciences Center (CCA), Federal University of Santa Catarina (UFSC), Rodovia Admar Gonzaga, 1346 Bairro Itacorubi, Florianópolis, SC, CEP 88034-001, Brazil
Sarah Pittigliani Ikebata
Affiliation:
Laboratory of Marine Fishes and Ornamentals (LAPOM), Aquaculture Department, Agricultural Sciences Center (CCA), Federal University of Santa Catarina (UFSC), Rodovia Admar Gonzaga, 1346 Bairro Itacorubi, Florianópolis, SC, CEP 88034-001, Brazil
Sérgio Leandro Araújo-Silva
Affiliation:
Laboratory of Marine Fishes and Ornamentals (LAPOM), Aquaculture Department, Agricultural Sciences Center (CCA), Federal University of Santa Catarina (UFSC), Rodovia Admar Gonzaga, 1346 Bairro Itacorubi, Florianópolis, SC, CEP 88034-001, Brazil
João Vitor Azevedo Manhães
Affiliation:
Laboratory of Marine Fishes (LAPMAR), Aquaculture Department, Agricultural Sciences Center (CCA), Federal University of Santa Catarina (UFSC), Rodovia Admar Gonzaga, 1346 Bairro Itacorubi, Florianópolis, SC, CEP 88034-001, Brazil
Mônica Yumi Tsuzuki
Affiliation:
Laboratory of Marine Fishes and Ornamentals (LAPOM), Aquaculture Department, Agricultural Sciences Center (CCA), Federal University of Santa Catarina (UFSC), Rodovia Admar Gonzaga, 1346 Bairro Itacorubi, Florianópolis, SC, CEP 88034-001, Brazil
*
Address for correspondence: Raoani Cruz Mendonça. Laboratory of Marine Fishes and Ornamentals (LAPOM), Aquaculture Department, Agricultural Sciences Center (CCA), Federal University of Santa Catarina (UFSC), Rodovia Admar Gonzaga, 1346 Bairro Itacorubi, Florianópolis, SC, CEP 88034-001, Brazil. Tel: +55 48 99978 7620. E-mail: [email protected]
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Summary

The flameback pygmy angelfish Centropyge aurantonotus, highly appreciated and valued by the aquarium market, is heavily harvested and traded. Temperature is one of the abiotic factors that has the most influence on fish development, especially in the early stages of life. For captive production, it is essential to know the appropriate environmental parameters for each species. In this sense, this study aimed to evaluate the influence of temperature on the embryonic development and hatching rates of C. aurantonotus incubated at six different temperatures (20, 22, 24, 26, 28, 30°C). Embryonic development events were very similar in terms of morphological and chronological characteristics compared with other species of the genus Centropyge. Incubation time was inversely proportional to temperature. The treatment at 22°C required twice the time of that required by 30°C treatment for hatching to occur. The best incubation temperature range was 24–28°C. Values below 22°C and at 30°C showed lower hatching rates compared with other treatments. Based on these results, the recommended temperature at which to incubate C. aurantonotus eggs is between 24–28°C.

Keywords

EmbryoIncubation timeOrnamental fishOntogenyWater temperature
Type
Short Communication
Information
Zygote , Volume 28 , Issue 1 , February 2020 , pp. 80 - 82
Copyright
© Cambridge University Press 2019 

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