Biología y ecología del pez león (Pterois volitans) en el Parque Nacional Natural Corales de Profundidad, Caribe colombiano

Q4 Agricultural and Biological Sciences

Boletin de Investigaciones Marinas y Costeras Pub Date : 2022-06-14 DOI:10.25268/bimc.invemar.2022.51.1.1087

Adolfo Sanjuan Muñoz, Diana Bustos-Montes, C. Polo-Silva, Alejandro Henao-Castro, Milena Marrugo, Antonio Delgado-Huertas, Dolors Vinyoles-Cartanya, A. Acero P.

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引用次数: 4

Abstract

Lionfish was studied in the mesophotic environment. 237 specimens were observed, most in the upper mesophotic zone. Males were larger than females and differences between sexes in growth models were found. Sixteen prey items were identified, the most important being the teleost families Acanthuridae and Monacanthidae, and the crustacean Penaeidae. The mean of δ13C was -17.08 ± 0.36 ‰ and δ15N was 8.68 ± 0.46 ‰, with no differences between sexes. Lionfish occupies a less extensive isotopic niche in mesophotic environment than in shallow sectors; there is an isotopic niche overlap between sexes. Likewise, lionfish has specialized trophic habits. All specimens were mature and in females regression phase predominated. In females, condition factor (CF), gonadosomatic index (GSI) and hepatosomatic index (HSI) increased with gonadal development, reaching peak in the active spawning phase, and decreasing in regression. Males had a condition factor similar to spawning females, but IGS and IHS were lower

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哥伦比亚加勒比地区深珊瑚自然国家公园狮子鱼(Pterois volitans)的生物学和生态学

在中生环境中对狮子鱼进行了研究。共观察到237个标本，大部分位于上层中生带。雄性比雌性大，在生长模型中发现了性别差异。确定了16种猎物，其中最重要的是硬骨鱼科、棘鱼科和斑鱼科，以及甲壳类动物Penaeidae。δ13C平均值为-17.08±0.36‰，δ15N平均值为8.68±0.46‰，性别间无差异。狮子鱼在中生环境中的同位素生态位不如在浅层环境中广泛；两性之间存在同位素生态位重叠。同样，狮子鱼也有特殊的营养习性。所有标本均为成熟标本，以女性回归期为主。在雌性中，条件因子（CF）、性腺体指数（GSI）和肝体指数（HSI）随着性腺发育而增加，在活跃产卵期达到峰值，在衰退期下降。雄性的条件因子与产卵的雌性相似，但IGS和IHS较低

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来源期刊

Boletin de Investigaciones Marinas y Costeras Environmental Science-Water Science and Technology

CiteScore

0.70

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0.00%

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