Surface ultrastructure of the gills of the mulletsMugil curema, M. liza andM. platanus (Mugilidae, Pisces)

Eiras-Stofella, D. R.; Charvet, Patrícia; Fanta, Edith; Vianna, Ana Cristina Casagrande

doi:10.1002/1097-4687(200102)247:2<122::aid-jmor1007>3.0.co;2-5

Cited by 33 publications

(27 citation statements)

References 28 publications

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“…All muco-ciliary feeders use cilia to transport food bound in mucus, but EPS gathered from the water column is also found on structures that intercept currents and may act to retain particulate and dissolved matter (Wotton, 1994). For example, it is likely that some pelagic fish that feed using gill rakers use mucus to enhance retention of captured food particles (Eiras-Stofella et al, 2001).…”

Section: Role Statusmentioning

confidence: 49%

The utiquity and many roles of exopolymers (EPS) in aquatic systems

Wotton¹

2004

Sci. Mar.

115

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SUMMARY: Exopolymers (EPS) are produced by unicellular and multicellular organisms. They consist largely of polysaccharides that hydrate rapidly on contact with water and link to form gels. EPS have many uses: in attachment; in locomotion on substrata; as a protection against predators, pathogens and changes in physico-chemical conditions; as a means of overcoming the threat of dessication; in preventing abrasion; and in feeding. When free of organisms, some EPS form loosely associated polymer gels that are important in the development of organic matter aggregates. These aggregates, together with mucus-bound faecal pellets, play an essential role in nutrient cycling, and in the metabolism of ecosystems.Key words: EPS, exopolymers, mucus, unicellular organisms, multicellular organisms, fibrils, flocs, aggregates. RESUMEN: UBICUIDAD Y FUNCIONES DIVERSAS DE LOS EXOPOLÍMEROS (EPS) EN LOS SISTEMAS ACUÁTICOS. -Los exopolímeros (EPS)son producidos por organismos unicelulares y pluricelulares. Están constituidos fundamentalmente por polisacáridos que se hidratan rápidamente en contacto con el agua y se unen para formar geles. Los EPS tienen muchos usos; en la fijación; en la locomoción sobre sustratos; como protección contra los depredadores, los patógenos y los cambios en la condiciones fisicoquímicas; como una manera de contrarrestar el peligro de la desecación; para evitar la abrasión, y en la alimentación. Cuando se hallan libres de organismos, algunos EPS forman geles de polímeros asociados de manera laxa que son importantes para el desarrollo de agregados de materia orgánica. Estos agregados, junto con los paquetes fecales cohesionados con mucus, desempeñan un papel esencial en el ciclado de los nutrientes y en el metabolismo de los ecosistemas.

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Section: Role Statusmentioning

confidence: 49%

The utiquity and many roles of exopolymers (EPS) in aquatic systems

Wotton¹

2004

Sci. Mar.

115

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“…Selection of the BaII representing the other gill-arches of the fish was performed according to previously established methodologies in other researches (Eiras-Stofella et al, 2001;Eiras-Stofella & Fank-de-Carvalho, 2002).…”

Section: Methodsmentioning

confidence: 92%

Surface Ultrastructure of the Gills of Odontesthes bonariensis (Valenciennes, 1835)(Teleostei: Atheriniformes) from a Temperate Shallow Lake

et al. 2014

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SUMMARY:We studied the gill epithelium of juveniles of Odontesthes bonariensis using scanning electron microscopy with a particular interest in the relationship between cell morphology and the different functional aspects of gills. The specimens used were collected in Laguna de los Padres, Buenos Aires Province, Argentina. The gill filaments or primary lamellae are arranged in two rows along the convex outer face of the gill arch forming the anterior and posterior hemibranchiae. On its concave inner face, each arch supports two rows of gill rakers forming the pharyngeal region wall. The primary lamellae are lined by a stratified epithelium made up of polygonal cells with well-defined outlines and cell membrane microfolds. Several mucous and chloride cells were observed in the primary lamellae. The epithelial cells of the secondary lamellae have ill-defined outlines and few microfolds. Both the arches and gill rakers are covered by a stratified epithelium of polygonal cells, among which mucous cells and taste corpuscles are abundant. The ultrastructural analysis of gills of O. bonariensis contributes to the advancement of knowledge of the organ histophysiology and of future histopathological studies.

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“…There are great variations in the number of gill arches between the different fish species; in the present study there are three pairs of gills in the striped red mullet, as noted in the puffer fisch (Abumandour & Gewaily), however, the four pairs of gills is the common number in most teleost fishes as in the present investigation in the grey gurnard (Hughes & Grimstone, 1965;Hughes & Morgan;Hossler et al, 1985;Eiras-Stofella et al, 2001;Eiras-Stofella & Fank-de-Carvalho, 2002;Zayed & Mohamed;Cinar et al, 2009;Díaz et al, 2009;Kumari et al, 2009;Kumari et al, 2012;Alsafy;Elsheikh). However, there are five pairs of gills, but the fifth pair is ill developed and devoid from any gill filaments as noted in catfish (Zayed & Mohamed;Kumari et al, 2005;Elsheikh), in contrast, in Senegal sole (Arellano et al, 2004) reported that the fifth pair is well-developed and contains gill filaments.…”

Section: Discussionmentioning

confidence: 99%

Gill Morphology in Two Bottom Feeder Mediterranean Sea Fishes: Grey Gurnard Fish (Eutrigla gurnardus, Linnaeus, 1758) and Striped Red Mullet Fish (Mullus barbatus surmuletus, Linnaeus, 1758) by Scanning Electron Microscopy

Abumandour

El‐Bakary

2017

Int. J. Morphol.

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Morfología de las Branquias en Dos SUMMARY:The purpose of the current investigation was to describe the gill morphology of two bottom feeders Mediterranean Sea fishes: Striped red mullet fish (M. surmuletus) and grey gurnard fish (E. gurnardus) that showed the same feeding habits. The gill system of the grey gurnard consisted of four pairs of gill arches while consisted of three pairs of gill arches in the striped red mullet. Our study focused on the scanning electron microscopical (SEM) features of the gills, where some differences in the gill arches and gill rakers surface in both species were observed. Our results marked that there was an interbranchial septum carrying a four transverse elevated crest in grey gurnard while in striped red mullet carrying a median longitudinal elevated crest. There are some similar structure on the gill arch of two fishes as; no angle between a ceratobranchial part and epibranchial part and also the gill arch has a region of many longitudinal microridges demarcated the region between gill rakers and gill filaments. By SEM, in striped red mullet, the smooth surface of gill arch and gill rakers was characterized by the presence of high number of taste buds. By SEM in grey gurnard, gill raker appeared as a round short projected body with high number of curved apex spines. Furthermore, in striped red mullet, gill raker appeared as short projected body with high number of rod-like spines. Gill filaments were long at middle and short at extremities of gill arch in both species.

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Surface ultrastructure of the gills of the mulletsMugil curema, M. liza andM. platanus (Mugilidae, Pisces)

Cited by 33 publications

References 28 publications

The utiquity and many roles of exopolymers (EPS) in aquatic systems

The utiquity and many roles of exopolymers (EPS) in aquatic systems

Surface Ultrastructure of the Gills of Odontesthes bonariensis (Valenciennes, 1835)(Teleostei: Atheriniformes) from a Temperate Shallow Lake

Gill Morphology in Two Bottom Feeder Mediterranean Sea Fishes: Grey Gurnard Fish (Eutrigla gurnardus, Linnaeus, 1758) and Striped Red Mullet Fish (Mullus barbatus surmuletus, Linnaeus, 1758) by Scanning Electron Microscopy

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