Filling gaps in the life history of the snapping shrimp Alpheus petronioi: morphology of the first post-embryonic stages reared in laboratory

IF 1 4区 生物学 Q4 ECOLOGY Marine Biology Research Pub Date : 2022-11-26 DOI:10.1080/17451000.2023.2173782
R. A. Pescinelli, R. C. Costa
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Abstract

ABSTRACT Larval characteristics play an important role in life history, phylogenetic and systematic studies. The morphology of the first post-embryonic stages (zoeae I–III) of the snapping shrimp Alpheus petronioi were described in detail and illustrated based on laboratory-hatched larvae. The morphological characteristics of the species were compared with available descriptions of other Alpheus species with known first zoeal stages. We provided a combination of characteristics useful for the diagnosis of the early zoeal stages of A. petronioi. The species can be separated from the first zoeal stage of the other species of the genus using the following structures: basial endite of maxillule with 2 stout spines (both without rows of spinules), and 2 small plumose setae; endopod of maxillule with 1 terminal denticulate seta, 1 short terminal simple seta and 1 subterminal spine; basial endite of maxilla bilobed, with 4 and 5 simple setae on proximal and distal lobe, respectively and basis of second maxilliped with 5 (3 strong and 2 slender) simple setae arranged (2 + 2 + 1). This is the first study on the biology of A. petronioi after its description, adding new information on its life history.
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填补岩尖跳虾生活史上的空白:实验室饲养的胚胎后第一阶段的形态学
幼虫特征在生命史、系统发育和系统研究中起着重要作用。根据实验室孵化的幼虫,详细描述并说明了岩羊角虾胚胎后第一阶段(zoeae I–III)的形态。将该物种的形态特征与其他已知第一阶段的Alpheus物种的现有描述进行了比较。我们提供了一个有用的特征组合,以诊断早期的岩耳a.zoeal阶段。该物种可以使用以下结构从该属其他物种的第一个胚胎期中分离出来:上颌骨的基序茎,有2个粗壮的刺(都没有成排的刺),和2个小的羽状刚毛;上颌骨内足具1顶生细齿刚毛,1短顶生单刚毛和1顶下棘;上颌骨的基端,近叶和远叶分别有4和5个简单刚毛,第二上颌骨的基底有5个(3个强壮和2个细长)简单刚毛排列(2 + 2. + 1) 。这是对岩石A.petronioi进行描述后的首次生物学研究,为其生命史增添了新的信息。
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来源期刊
Marine Biology Research
Marine Biology Research 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
55
审稿时长
6-12 weeks
期刊介绍: Marine Biology Research (MBRJ) provides a worldwide forum for key information, ideas and discussion on all areas of marine biology and biological oceanography. Founded in 2005 as a merger of two Scandinavian journals, Sarsia and Ophelia, MBRJ is based today at the Institute of Marine Research, Bergen, Norway. The Journal’s scope encompasses basic and applied research from all oceans and marine habitats and on all marine organisms, the main criterium for acceptance being quality.
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