Size, weight, and diet of the invasive lionfish Pterois volitans (Linnaeus, 1758) on the southern coast of Veracruz, Gulf of Mexico

IF 0.5 4区生物学 Q4 MARINE & FRESHWATER BIOLOGY

Ciencias Marinas Pub Date : 2020-03-24 DOI:10.7773/cm.v46i1.3012

R. Aguilar‐Medrano

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引用次数: 4

Abstract

espanolLa invasion del pez leon del Indo-Pacifico Pterois volitans ha producido impactos perjudiciales sobre la biodiversidad regional y las pesquerias de zonas invadidas. Para comprender el efecto que puede tener el pez leon en las comunidades nativas, es necesario conocer sus habitos alimenticios. Los objetivos de este estudio fueron documentar nuevos registros de distribucion de P. volitans a lo largo de la costa sur de Veracruz (Mexico), documentar los habitos alimenticios de los especimenes recolectados y determinar si existia una relacion entre la dieta, la talla y el peso de estos especimenes. La densidad de P. volitans en nuestra area de estudio fue baja. La composicion de la dieta de esta especie consistio en peces oseos (95.40%), crustaceos (4.20%) y moluscos (0.36%). La talla y el peso del pez leon estuvieron positivamente correlacionados. No encontramos diferencias estadisticas entre la dieta y los grupos de talla/peso; sin embargo, los especimenes de menor talla, aparentemente, tuvieron una dieta mas variada que los especimenes de mayor talla. EnglishThe invasion of the Indo-Pacific lionfish Pterois volitans has produced detrimental impacts on the regional biodiversity and fisheries of invaded ranges. To understand the effect this lionfish may have on the native fish communities, it is necessary to understand its feeding habits. The objectives of this study were to report new distribution records of P. volitans along the southern coast of Veracruz (Mexico), to document the feeding habits of the collected specimens, and to determine if there was a relationship between the diet, size, and weight of those specimens. The density of P. volitans in our study area was low. Diet composition for this species consisted of bony fishes (95.40%), crustaceans (4.20%), and mollusks (0.36%). Lionfish size and weight were positively correlated. We did not find statistical differences between the diet and the size/weight groupings; however, the smaller specimens seemingly had a more varied diet than the larger specimens.

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墨西哥湾韦拉克鲁斯州南部海岸入侵狮子鱼Pterois volians（林奈，1758）的大小、重量和饮食

西班牙入侵印度-太平洋凤尾鱼对被入侵地区的区域生物多样性和渔业产生了有害影响。为了了解狮子鱼对当地社区的影响，有必要了解它们的饮食习惯。这项研究的目的是记录墨西哥韦拉克鲁斯南海岸P.volitans分布的新记录，记录收集的标本的饮食习惯，并确定这些标本的饮食、大小和重量之间是否存在关系。我们研究地区的P.volitans密度较低。该物种的饮食组成由骨鱼（95.40%）、甲壳类动物（4.20%）和软体动物（0.36%）组成。狮子鱼的大小和体重呈正相关。我们发现饮食和身高/体重组之间没有统计学差异；然而，较小的标本显然比较大的标本饮食更多样化。印度-太平洋狮鱼翼龙Volitans的入侵对入侵地区的区域生物多样性和渔业产生了有害影响。为了了解这种狮子鱼可能对当地鱼类社区的影响，有必要了解其觅食习惯。这项研究的目的是报告墨西哥韦拉克鲁斯南海岸P.Volitans的新分布记录，记录所收集标本的摄食习惯，并确定这些标本的饮食、大小和体重之间是否存在关系。我们研究区的P.volitans密度较低。该物种的饮食组成由骨鱼（95.40%）、甲壳类动物（4.20%）和软体动物（0.36%）组成。狮子鱼的大小和体重呈正相关。我们没有发现饮食与大小/体重组之间的统计差异；然而，较小的标本的饮食似乎比较大的标本多样化。

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

Ciencias Marinas 生物-海洋与淡水生物学

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： A bilingual open-access publication, Ciencias Marinas (CM) is an international peer-reviewed journal that contains original research findings in all areas of marine science. It is published quarterly by the Autonomous University of Baja California, Mexico, and all its contents are publicly available on our journal website. Though a limited number of copies are still printed, the journal is mainly distributed in its electronic format. CM was conceived in 1973 as part of an academic project aimed to entice local researchers to publicly disclose their findings by adopting the culture of peer-review publishing. This academic project evolved into an international journal after accepting papers from researchers in the United States and, eventually, other parts of the world. Because of the diversity in authorship, CM issues were initially published in either Spanish or English, and occasionally in both languages. It was not until 1984 when CM included both language versions of all its contents, and it then became the fully bilingual journal it still is today. At CM we believe our inclusive format allows us not only to address a wider range of submissions from international authors but also to make published findings available to a wider international audience. So whether you are looking for information on the redfish in Icelandic waters or the physical and biological properties of the Gulf of California, feel free to peruse CM contents. You may find them to provide source material for your research.