Eye development and the role of vision during Siberian sturgeon early ontogeny

Rodríguez, Adriana; Gisbert, Enric

doi:10.1046/j.1439-0426.2002.00406.x

Cited by 24 publications

(22 citation statements)

References 21 publications

(36 reference statements)

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“…Sturgeon are a non‐visual feeding fish (Boglione et al. ; Rodríguez & Gisbert ) that forage primarily using four sensory barbels on the ventral side of their body immediately anterior to the mouth (Peterson et al. ).…”

Section: Methodsmentioning

confidence: 99%

“…Sturgeon are thought to feed primarily on benthic invertebrates, including crustaceans, insect larvae, molluscs and isopods (Chiasson et al 1997). Sturgeon are a non-visual feeding fish (Boglione et al 1999;Rodr ıguez & Gisbert 2002) that forage primarily using four sensory barbels on the ventral side of their body immediately anterior to the mouth (Peterson et al 2007). These barbels decode the chemical composition of potential prey items, allowing them to forage without the use of sight.…”

Section: Study Speciesmentioning

confidence: 99%

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Relative Cost/Benefit Trade‐Off Between Cover‐Seeking and Escape Behaviour in an Ancestral Fish: The Importance of Structural Habitat Heterogeneity

2014

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Fleeing from predators and moving into protective habitats are two common antipredator behaviours in the animal kingdom. Surprisingly, the relative cost/benefit trade‐off of each behavioural option has rarely been examined empirically. Here, we investigate the interplay between decisions surrounding escape behaviour and rocky microhabitat occupancy in lake sturgeon, Acipenser fulvescens. In high‐risk clear‐water environments, sturgeon responded to danger by evoking an escape response and by seeking cover in rocky microhabitats. However, in low‐risk turbid environments, we found that sturgeon responded to danger by seeking cover in rocky microhabitats, but not fleeing to a significant degree. Cover‐seeking behaviour may therefore be a relatively low‐cost/high‐benefit antipredator strategy. These findings highlight the importance of structural habitat heterogeneity for prey animals in predator‐dominated landscapes.

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Section: Methodsmentioning

confidence: 99%

Section: Study Speciesmentioning

confidence: 99%

Relative Cost/Benefit Trade‐Off Between Cover‐Seeking and Escape Behaviour in an Ancestral Fish: The Importance of Structural Habitat Heterogeneity

2014

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“…Most marine fish larvae hatched from small pelagic eggs are strongly visual predators at feeding onset~Blaxter, 1986;Pankhurst & Hilder, 1998;Rodríguez & Gisbert, 2002!. Initially, the retinae of these larvae are characterized by the exclusive presence of cone photoreceptors, limiting visual function to photopic conditions in near-surface waters, in which light intensities are relatively high Blaxter, 1986;Powers & Raymond, 1990!.…”

Section: Introductionmentioning

confidence: 99%

Early development of eye and retina in lanternfish larvae

2007

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The morphological characteristics of the eyes and the retinae of lanternfish larvae of Lampanyctus crocodilus, Benthosema glaciale, and Myctophum punctatum were analyzed in pre-flexion, flexion, and post-flexion stages. Pre-flexion larvae of L. crocodilus, the species with the shallowest depth distribution, had spherical eyes located antero-laterally on a strongly laterally-compressed head, suggesting a forward binocular visual field. B. glaciale and M. punctatum larvae live deeper in the water column and had eyes elongated in the dorsal-ventral plane. The eyes of B. glaciale were prominent, projecting slightly outward from a laterally-compressed head, suggesting a strongly laterally-directed visual field. M. punctaum had stalked elongated eyes projecting from a dorso-ventrally flattened head. The eyes can be freely rotated allowing lateral, anterior and dorsally-directed vision. A prominent choroidal gland was situated beneath the ventral portion of the eye in M. punctatum and B. glaciale, while a smaller gland was present in the dorsal and ventral portions of the eye of L. crocodilus. In pre-flexion stage larvae, the retina of all three species was differentiated with numerous rod photoreceptors in the peripheral retinal areas and fewer cone photoreceptors mainly distributed in the central retina. This distribution suggests concomitant enhancement of scotopic sensitivity in the vertical visual plane and improved photopic acuity in the lateral and forward visual directions. The concurrent development of cones and rods, as observed in the pre-flexion stage of myctophid larvae, is consistent with meeting the special demands of visual planktivory in sub-surface waters. During larval development a gradual increase of ROS length was also accompanied by a progressive loss of cones that were almost totally absent in post-flexion larvae. This can be interpreted as an adaptive response to an impending deep mesopelagic adult life.

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“…"活化石"之称 (Ma, 2007;Wang et al, 2009)。它是少数具有壶腹型电感受器的硬骨鱼类之一, 在电感受器进化中占据极为重要的地位 (Gibbs & Northcutt, 2004;Hofmann et al, 2002;Song et al, 2010)。西伯利亚鲟 (Acipenser baerii Brandt) 隶属鲟形目 (Acipenseriformes) 鲟科 (Acipenseridae) 鲟属 (Acipenser), 主要分布于俄罗斯西部的鄂毕河至东部的科雷马河之间的各河流中 (Gisbert & Williot, 2002)。西伯利亚鲟头部具较为丰富的电感受器 (Gibert et al, 1999), 且适应性广、生长速度快、具有抗病能力, 现已成为我国淡水养殖的优良品种 (Lin, 2003)。近年来, 有关西伯利亚鲟的研究已有不少, 在早期发育方面, 对其早期行为学、眼睛发育已进行了较系统的研究 (Gisbert & Ruban, 2003;Rodríguez & Gisbert, 2002), 而侧线系统发育相关研究尚未见报道。本研究从形态学和组织学角度, 应用光镜和扫描电镜研究西伯利亚鲟侧线系统早期发育, 不仅对研究电感受器的起源与进化有着重要意义, 而且为人工育苗积累基础资料。 1 材料与方法 (Baker, 2008;Dupin et al, 2007); 外胚层板是由胚胎头部特定区域的外胚层增厚单独形成的, 能发育形成各种感觉细胞及其神经节, 主要包括嗅基板、听基板、三叉基板、深基板及侧线基板等 Schlosser, 2006, (Gurgens et al, 2000;Teeter et al, 1980)。西伯利亚鲟仔鱼在 9 日龄初次摄食阶段已有壶腹器官发育成熟, 用铜加热棒可能会使西伯利亚鲟出现慌乱逃窜行为, 影响其摄食及正常生长, 并导致大批量死亡。参考文献：…”

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Development of the lateral line system in juvenile Siberian sturgeon (<I>Acipenser baerii</I>)

Song

Song²

2013

Zoological Research

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Abstract:The Siberian sturgeon (Acipenser baerii Brandt), a chondrostean, occupies an important position in the evolution of the electroreceptor. In order to more fully understanding the evolution of these receptors, we examined the development of the lateral line system during early ontogeny of the Siberian sturgeon by using light and scanning electron microscopes. We detected four major events in this process: the lateral line placodal development, the sensory ridge formation, the receptor formation and the canal formation. On day 1 of post hatching, all six lateral line placodes are present and the posterior lateral line placode starts actively migrating posteriorly along the mid-line of the trunk, depositing neuromasts at intervals on the way of migration. The other lateral line placodes elongate to form sensory ridges according to its destination line pattern over the head, all containing primordial neuromasts. By day 7, ampullary organs rise from the lateral zones of the ventral of the head, though this may lag up to one week behind of that of the neuromasts. On day 9, the epidermis under the neuromast slowly invaginates, and the bony lateral line canals begin to form. Towards day 29, the epidermal cells surrounded some single openings of the ampullary organs at the ventral surface of the head, begin to migrate, and then transform into 3 to 4 aggregate openings. By this point, abundant microvilli are visible on the surface of the receptor epithelium, similar to the structure in elasmobranches and other sturgeons. On the day 57 of post hatching, the trunk canal is fully embedded into the lateral scutes. By then, the majority of ampullary organs are highly concentrated on the ventral rostrum, arranged in clusters of 3−4, distributing closely such as the shape of quincunx, thus completing the formation of the lateral line system.

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Eye development and the role of vision during Siberian sturgeon early ontogeny

Cited by 24 publications

References 21 publications

Relative Cost/Benefit Trade‐Off Between Cover‐Seeking and Escape Behaviour in an Ancestral Fish: The Importance of Structural Habitat Heterogeneity

Relative Cost/Benefit Trade‐Off Between Cover‐Seeking and Escape Behaviour in an Ancestral Fish: The Importance of Structural Habitat Heterogeneity

Early development of eye and retina in lanternfish larvae

Development of the lateral line system in juvenile Siberian sturgeon (<I>Acipenser baerii</I>)

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