Comparison of the oral cavity architecture in surgeonfishes (Acanthuridae, Teleostei), with emphasis on the taste buds and jaw “retention plates”

Fishelson, Lev; Delarea, Y.

doi:10.1007/s10641-013-0139-1

Cited by 21 publications

(19 citation statements)

References 30 publications

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“…There is a plethora of data showing the adaptability of the taste system in fishes. Variability in oral TB morphology, abundance and localisation in ecologically different fish species clearly illustrates the selective pressure of the environment on taste system characteristics (Atkinson et al ., ; Devitsina, ; Fishelson et al, ; Fishelson & Delarea, ; Gomahr et al, ; Gon et al, ; Yashpal et al, ). The presence of external TBs, their density and distribution pattern are other examples of ecomorphological adaptations related to fish feeding habits and habitat.…”

Section: The Anatomy and Physiology Of The Taste System In Fishesmentioning

confidence: 99%

The taste system in fishes and the effects of environmental variables

Kasumyan

2019

Journal of Fish Biology

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The adaptability of the taste system in fish has led to a large variety in taste bud morphology, abundance and distribution, as well as in taste physiology characteristics in closely related species with different modes of life and feeding ecology. However, the modifications evoked in the sense of taste, or gustation, particularly during ontogeny when fishes are subject to different environmental variables, remain poorly studied. This review paper focusses on current knowledge to show how plastic and resistant the taste system in fishes is to various external factors, linked to other sensory inputs and shifts in physiological state of individuals. Ambient water temperature is fundamental to many aspects of fish biology and taste preferences are stable to many substances, however, the taste‐cell turnover rate strongly depends on water temperature. Taste preferences are stable within water salinity, which gives rise to the possibility that the taste system in anadromous and catadromous fishes will only change minimally after their migration to a new environment. Food‐taste selectivity is linked to fish diet and to individual feeding experience as well as the motivation to feed evoked by attractive (water extracts of food) and repellent (alarm pheromone) odours. In contrast, starvation leads to loss of aversion to many deterrent substances, which explains the consumption by starving fishes of new objects, previously refused or just occasionally consumed. Food hardness can significantly modify the final feeding decision to swallow or to reject a grasped and highly palatable food item. Heavy metals, detergents, aromatic hydrocarbons and other water contaminants have the strongest and quickest negative effects on structure and function of taste system in fish and depress taste perception and ability of fishes to respond adequately to taste stimuli after short exposures. Owing to phenotypic plasticity, the taste system can proliferate and partially restore the ability of fishes to respond to food odour after a complete loss of olfaction. In general, the taste system, especially its functionality, is regarded as stable over the life of a fish despite any alteration in their environment and such resistance is vital for maintaining physiological homeostasis.

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Section: The Anatomy and Physiology Of The Taste System In Fishesmentioning

confidence: 99%

The taste system in fishes and the effects of environmental variables

Kasumyan

2019

Journal of Fish Biology

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“…; Montgomery & Galzin ; Purcell & Bellwood ; Choat et al . , ; Green & Bellwood ; Fishelson & Delarea ), with less focus on characterizing their microbiome (Macdonald & Monteleone ; Round & Mazmanian ; Turnbaugh et al . ; Wu et al .…”

Section: Introductionmentioning

confidence: 99%

Diet strongly influences the gut microbiota of surgeonfishes

2015

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Intestinal tracts are among the most densely populated microbial ecosystems. Gut microbiota and their influence on the host have been well characterized in terrestrial vertebrates but much less so in fish. This is especially true for coral reef fishes, which are among the most abundant groups of vertebrates on earth. Surgeonfishes (family: Acanthuridae) are part of a large and diverse family of reef fish that display a wide range of feeding behaviours, which in turn has a strong impact on the reef ecology. Here, we studied the composition of the gut microbiota of nine surgeonfish and three nonsurgeonfish species from the Red Sea. High-throughput pyrosequencing results showed that members of the phylum Firmicutes, especially of the genus Epulopiscium, were dominant in the gut microbiota of seven surgeonfishes. Even so, there were large inter- and intraspecies differences in the diversity of surgeonfish microbiota. Replicates of the same host species shared only a small number of operational taxonomic units (OTUs), although these accounted for most of the sequences. There was a statistically significant correlation between the phylogeny of the host and their gut microbiota, but the two were not completely congruent. Notably, the gut microbiota of three nonsurgeonfish species clustered with some surgeonfish species. The microbiota of the macro- and microalgavores was distinct, while the microbiota of the others (carnivores, omnivores and detritivores) seemed to be transient and dynamic. Despite some anomalies, both host phylogeny and diet were important drivers for the intestinal microbial community structure of surgeonfishes from the Red Sea.

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“…Several studies applied on the surface architecture of the oropharyngeal cavity of many fishes, the taste buds scattered inside it and the teeth which presented (Abbate et al, ; Abbate, Guerrera, Montalbano, Ciriaco, & Germanà, ; El Bakary, ; Elgendy, Alsafy, & Tanekhy, ; Fishelson & Delarea, ; Gamal, Elsheikh, & Nasr, ; Guerrera et al, ), Nevertheless, the information about the surface architecture of the oropharyngeal cavity of Bagrus Bayad is scarce, so in our study we gave concern to the surface of the oropharyngeal cavity using gross anatomy and SEM.…”

Section: Introductionmentioning

confidence: 99%

Gross morphology and scanning electron microscopy of the Bagrus Bayad (Forskal, 1775) oropharyngeal cavity with emphasis to teeth‐food adaptation

Alsafy

Bassuoni

Hanafy

2018

Microscopy Res & Technique

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Bagrus Bayad (Forskal, 1775) is a bottom feeder fish feeds on different food items. Its oral cavity anatomy has many types of teeth adapted to the capacity and varieties of feeding. The aim of the present study was to use the gross anatomy and scanning electron microscopy to identify the anatomical characteristic, especially of the teeth and taste buds distributed on the roof and floor of the oropharyngeal cavity. The results clarified that Bagrus Bayad has two types of teeth; curved pointed and blunt teeth of different sizes. The teeth appeared on epithelial protrusions. The pharyngeal region had upper and lower pharyngeal teeth, the upper arranged into two oval prominences while the lower ones arranged into two triangular areas. The higher number of the pointed teeth is prove the carnivorous nature of the Bagrus Bayad. Three types of taste bud (I, II, & III) were found in the oropharyngeal cavity. The tongue present in the floor and free from teeth and characterized by the presence of taste bud type I and II. Many microridges of different arrangement observed on the surface epithelium of oropharyngeal cavity. The upper and lower valve characterized by the microridges, pores and taste buds. The knowledge of the nature of the oropharyngeal cavity of the Bagrus Bayad helps in identifying new and better methods for feeding in aquaculture.

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Comparison of the oral cavity architecture in surgeonfishes (Acanthuridae, Teleostei), with emphasis on the taste buds and jaw “retention plates”

Cited by 21 publications

References 30 publications

The taste system in fishes and the effects of environmental variables

The taste system in fishes and the effects of environmental variables

Diet strongly influences the gut microbiota of surgeonfishes

Gross morphology and scanning electron microscopy of the Bagrus Bayad (Forskal, 1775) oropharyngeal cavity with emphasis to teeth‐food adaptation

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