Climbing upstream: Multi-scale structural characterization and underwater adhesion of the Pulin river loach (Sinogastromyzon puliensis)

Chuang, Yung-Chieh; Chang, Hsu‐Kai; Liu, Guanlin; Chen, Po‐Yu

doi:10.1016/j.jmbbm.2017.01.029

Cited by 37 publications

(42 citation statements)

References 24 publications

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“…These results parallel those of climbing trials from juvenile gobies of the same species, in which climbing performance typically improved on surfaces coated with sand, compared with smooth surfaces (Blob et al, 2006). Other species of adhesive fishes, such as river loaches and clingfishes, also attach to rough substrates as well as (or better than) they do to smooth substrates (Chuang et al, 2017;. This may suggest that among fishes using suction adhesion, attachment is enhanced on complex substrates which possess some element of roughness.…”

Section: Resultssupporting

confidence: 63%

“…Active control may be necessary to allow adjustments that could promote performance across a wider range of surfaces in nature. Further studies should expand the variety of rough substrates that are tested to find the limits of passive adhesion and determine which substrates gobies prefer to climb (Chuang et al, 2017;Wainwright et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

“…Attachment mechanisms are commonly utilized by plants and animals, including invertebrates (Gorb et al, 2019;Kier and Smith, 2006;Smith, 1991;Zhou et al, 2014), mammals (Riskin and Fenton, 2001;Thewissen and Etnier, 1995), reptiles (Autumn et al, 2000;Russell, 2017), amphibians (Endlein et al, 2013;Kappl et al, 2016) and fishes (Chuang et al, 2017;Ditsche and Summers, 2019;. These mechanisms are diverse and may incorporate intermolecular forces including van der Waals forces (Autumn et al, 2002), wet adhesion through capillarity or Stefan adhesion (Federle et al, 2006;Wicaksono et al, 2016), friction or interlocking structures (Naylor and Higham, 2019), and/or suction Maie et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Sticking to it: testing passive pull-off forces in waterfall-climbing fishes across challenging substrates

Palecek

Schoenfuss

Blob

2020

Journal of Experimental Biology

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The pelvic sucker of Hawaiian waterfall climbing gobies allows these fishes to attach to substrates while climbing waterfalls tens to hundreds of meters tall. Climbing ability varies by species and may be further modulated by the physical characteristics of the waterfall substrate. In this study, we investigated the influence of surface wettability (hydrophobic versus hydrophilic surface charges) and substrate roughness on the passive adhesive system of four species of gobies with different climbing abilities. Overall, passive adhesive performance varied by species and substrate, with the strongest climbers showing the highest shear pull-off forces, particularly on rough surfaces. Thus, differences in passive adhesive performance may help to explain the ability of some species to migrate further upstream than others and contribute to their ability to invade new habitats.

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Section: Resultssupporting

confidence: 63%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sticking to it: testing passive pull-off forces in waterfall-climbing fishes across challenging substrates

Palecek

Schoenfuss

Blob

2020

Journal of Experimental Biology

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“…Torrential hillstreams, characterized by high flow velocities, abundant oxygen content, relatively low temperature and plentiful rocky substrates, contain many tenaciously rheophilic creature assemblages (e.g., algae, larvae of insects, isopods, snails and fishes) adapted to this rigorous environment (Arens, 1994; Lujan & Conway, 2015). To live this turbulent life, many morphological and physiological solutions share convergent or divergent evolution among these species, which is basically driven by a series of genetic modifications (Arens, 1994; Chuang et al, 2017). Scrutinizing how these species cope with the rigorous environment will provide significant understanding of the genetic basis and evolutionary mechanism of these adaptive traits.…”

Section: Introductionmentioning

confidence: 99%

Genome of the butterfly hillstream loach provides insights into adaptations to torrential mountain stream life

Deng

Meng

Fang

et al. 2021

Molecular Ecology Resources

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Butterfly hillstream loach (Beaufortia kweichowensis), a benthic fish in the torrential mountain streams, possesses a totally flat ventrum, flattened craniofacial and body skeletons, and enlarged paired fins covered by substantially small keratinous structures. However, little is known about the genetic basis of these specialized morphological adaptations. Here we present a 448.52-Mb genome assembly with contig N50 length of 5.53 Mb by integrating Illumina short-read sequencing, Nanopore long-read sequencing and HiC-based chromatin map. Demographic history reconstruction of the butterfly hillstream loach reveals that the population dynamics is correlated with the different stages of uplifting of the Tibetan Plateau. Comparative genomic analysis finds evidence of six keratin genes in butterfly hillstream loach evolving under positive selection. Within these genes, two keratin genes exhibit species-specific and divergent amino acid changes, suggesting a role in the formation of the unculi. Additionally, a series of positively selected genes, rapid evolving genes, specific variant genes and expanded gene families are found, including genes related to Hedgehog, Notch and BMP pathways, which may be involved in craniofacial development. These findings may have important implications for understanding the genetic basis of phenotypic adaptation to torrential mountain stream life.

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“…13,14 The suckershaped structure in the abdomen of gastromyzontidae can form an effective vacuum negative pressure, which is beneficial to its adsorption and movement on the smooth stone. [15][16][17] Octopus is a common mollusk in the ocean. It has a large number of suckers on its tentacle.…”

Section: Introductionmentioning

confidence: 99%

Design, experiment and adsorption mechanism analysis of bionic sucker based on octopus sucker

Cong

Kun

2019

Proc Inst Mech Eng H

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The vacuum chuck is widely used in industrial and daily life. By observing the macroscopic and microscopic morphology of octopus sucker, it is found that the sucker surface has concave–convex continuous wave shape with large number of non-smooth morphologies. The sealing mechanism of octopus sucker is analyzed according to its surface morphology before and after adsorption, and the non-smooth morphology is found to greatly enhance the adsorption. Based on the bionics theory, the non-smooth surface morphology of octopus sucker is applied to improve the sucker adsorption. And the bionic suckers with three types of grooves are designed. According to the model of standard and bionic suckers, the sucker entities are obtained by the method of three-dimensional printing and casting. And the tensile tests of suckers are carried out. The stress of suckers is analyzed by finite element method, and the sealing mechanism is discussed. According to the test results, the bionic sucker has larger adsorption force. And the ring sucker possesses the best adsorption performance. Compared with the standard sucker, the maximum adsorption force of the bionic sucker is increased by 12.2% in the air and 25.2% underwater. The adsorption force of bionic sucker becomes larger with the increase in the groove number; when the groove number increases to a certain extent, the adsorption force becomes smaller. The deformation of non-smooth morphology during adsorption makes the bionic sucker have a larger contact area. That is the reason why the bionic sucker has good adsorption performance. The bionic design of sucker can provide a new method to improve its adsorption.

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Climbing upstream: Multi-scale structural characterization and underwater adhesion of the Pulin river loach (Sinogastromyzon puliensis)

Cited by 37 publications

References 24 publications

Sticking to it: testing passive pull-off forces in waterfall-climbing fishes across challenging substrates

Sticking to it: testing passive pull-off forces in waterfall-climbing fishes across challenging substrates

Genome of the butterfly hillstream loach provides insights into adaptations to torrential mountain stream life

Design, experiment and adsorption mechanism analysis of bionic sucker based on octopus sucker

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