马希鱼生命早期视觉功能的发育

IF 0.9 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY Marine and Freshwater Behaviour and Physiology Pub Date : 2020-08-12 DOI:10.1080/10236244.2020.1804300
Jason T. Magnuson, J. Stieglitz, Skylar A. Garza, D. Benetti, M. Grosell, A. Roberts
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引用次数: 2

摘要

摘要:鲯鳅(Coryphaena hippurus)是一种依靠视觉来躲避捕食者和觅食的光性捕食者。对Mahi-mahi视力的研究主要集中在成人身上,对其早期视觉功能和眼睛发育的了解有限。在本研究中,从产卵的野生捕捞鱼中获得了Mahi-mahi幼鱼,并进行了视运动反应试验以评估视觉功能。在行为评估后,对视网膜层进行组织学检查,以确定发育早期眼睛形态和视力的变化。Mahi-mahi在速度增加时表现出视运动反应的能力随年龄增加而增加。此外,这与孵化后7至10天的幼虫视网膜面积和晶状体厚度的增加相对应,解剖视力(以最小可分离角测量)也有所改善。这些发现有助于进一步了解远洋鱼类早期生命阶段的视觉发育。
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Development of visual function in early life stage mahi-mahi (coryphaena hippurus)
ABSTRACT Mahi-mahi (Coryphaena hippurus) are photopic predators that rely on vision for predator avoidance and foraging behavior. Research conducted on Mahi-mahi vision has been primarily focused on adults, with limited knowledge of the visual function and eye development in early life-stages. In this study, larval Mahi-mahi were obtained from spawning wild-caught broodstock and exposed to an optomotor response assay to assess visual function. Following behavioral assessment, histological examination was conducted on the retinal layers to determine changes in eye morphology and visual acuity early in development. There was an age-dependent increase in the ability of Mahi-mahi to exhibit an optomotor response at increasing speeds. Furthermore, this corresponded to an increase in retinal area and lens thickness between 7 and 10 day post-hatch (dph) larvae, where anatomical visual acuity (measured as the minimum separable angle) also improved. These findings help further the knowledge of visual development in early life-stage pelagic fishes.
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来源期刊
Marine and Freshwater Behaviour and Physiology
Marine and Freshwater Behaviour and Physiology 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
9
审稿时长
>12 weeks
期刊介绍: Marine and Freshwater Behaviour and Physiology is devoted to the publication of papers covering field and laboratory research into all aspects of the behaviour and physiology of all marine and freshwater animals within the contexts of ecology, evolution and conservation. As the living resources of the world’s oceans, rivers and lakes are attracting increasing attention as food sources for humans and for their role in global ecology, the journal will also publish the results of research in the areas of fisheries biology and technology where the behaviour and physiology described have clear links to the contexts mentioned above. The journal will accept for publication Research Articles, Reviews, Rapid Communications and Technical Notes (see Instructions for authors for details). In addition, Editorials, Opinions and Book Reviews (invited and suggested) will also occasionally be published. Suggestions to the Editor-In-Chief for Special Issues are encouraged and will be considered on an ad hoc basis. With the goal of supporting early career researchers, the journal particularly invites submissions from graduate students and post-doctoral researchers. In addition to recognising the time constraints and logistical limitations their research often faces, and their particular need for a prompt review process, accepted articles by such researchers will be given prominence within the journal (see Instructions for authors for details).
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