Natural Spawning, Early Development, and First Successful Hatchery Production of the Vermiculated Angelfish (Chaetodontoplus mesoleucus), Exploring the Influence of Temperature and Salinity.

IF 2.7 2区农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Animals Pub Date : 2025-06-04 DOI:10.3390/ani15111657

Yu-Hsuan Sun, Yu-Ru Lin, Hung-Yen Hsieh, Pei-Jie Meng

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引用次数: 0

Abstract

The marine ornamental species trade relies heavily on wild-caught specimens, including the Vermiculated angelfish (Chaetodontoplus mesoleucus). Captive breeding of this species faces challenges with limited detailed knowledge available beyond 2 days post-hatch (dph) regarding the influence of environmental factors. This study provides a detailed characterization of C. mesoleucus from early development to 381 dph. Under controlled laboratory conditions, the effect of temperature (22-37 °C) on hatching rate, deformity rate, hatching period duration, time to 50% hatch, and survival rate is investigated. Additionally, the influence of different salinities (0-38 psu) on hatching rates and larval deformity rates was also examined. The optimal incubation temperatures for high hatching rate and minimal larval deformities are found to be within 25-28 °C. A lower salinity threshold of 10 psu was established for successful hatching, and the optimal salinity range for minimizing larval deformities was 33-36 psu. These findings provide crucial baseline data and practical recommendations for optimizing hatchery protocols for C. mesoleucus, contributing to enhanced larval survival and the potential for sustainable aquaculture production, thereby reducing the pressure on wild populations.

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微孔天使鱼（Chaetodontoplus mesoleucus）的自然产卵、早期发育和首次成功孵化，探讨温度和盐度的影响。

海洋观赏物种贸易严重依赖于野生捕捞的标本，包括蛭形天使鱼（Chaetodontoplus mesoleucus）。该物种的圈养繁殖面临着挑战，因为在孵化后2天（dph）之后，有关环境因素影响的详细知识有限。本研究提供了从早期发育到381 dph的详细特征。在实验室控制条件下，研究温度（22 ~ 37℃）对孵化率、畸形率、孵化期、孵化至50%的时间和存活率的影响。此外，还研究了不同盐度（0-38 psu）对孵化率和幼虫畸形率的影响。25-28℃是高孵化率和最小幼虫畸形的最佳孵化温度。成功孵化的最低盐度阈值为10 psu，最大限度减少幼虫畸形的最佳盐度范围为33-36 psu。这些发现提供了关键的基线数据和切实可行的建议，以优化中绿梭菌的孵化方案，有助于提高幼虫存活率和可持续水产养殖生产的潜力，从而减少对野生种群的压力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Animals Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

4.90

自引率

16.70%

发文量

3015

审稿时长

20.52 days

期刊介绍： Animals (ISSN 2076-2615) is an international and interdisciplinary scholarly open access journal. It publishes original research articles, reviews, communications, and short notes that are relevant to any field of study that involves animals, including zoology, ethnozoology, animal science, animal ethics and animal welfare. However, preference will be given to those articles that provide an understanding of animals within a larger context (i.e., the animals'' interactions with the outside world, including humans). There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental details and/or method of study, must be provided for research articles. Articles submitted that involve subjecting animals to unnecessary pain or suffering will not be accepted, and all articles must be submitted with the necessary ethical approval (please refer to the Ethical Guidelines for more information).