Touch Receptors in Fishes with Special Reference to the Moray Eels (Gymnothorax vicinus and G. moringa)

Bardach, John E.; Loewenthal, Lois A.

doi:10.2307/1440170

Cited by 15 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…scapha are located on relatively large papillae, each surrounded by an indented rim. Touch receptors on other fish species have a similar form (Bardach & Lowenthal, 1961) and it is probable that the large papillae found in the mouth of A . scapha function as touch receptors as well as taste receptors.…”

Section: Sensory Systemsmentioning

confidence: 98%

Morphological and sensory specializations of five New Zealand flatfish species, in relation to feeding behaviour

Livingston

1987

Journal of Fish Biology

View full text Add to dashboard Cite

The morphology of the feeding apparatus and sensory systems of flatfish species Rhombosoleu plebeiu (Richardson, 1843). Rhombosolea leporinu Gunther, 1862, Pelrorhumphus novuezeelandiue Gunther, 1862, Pelorreris flavilutus Waite, 191 1 (f. Pleuronectidae) and Arnoglossus scuphu (Forster, in Bloch & Schneider, 1801) (f. Bothidae) are described. The four pleuronectid species have asymmetric jaws and non-toothed gill rakers typical of benthic-feeding flatfish, while the bothid has symmetric jaws and toothed gill rakers typical of midwater-feeding flatfish. R. plebeia, R. leporinu and P. novuezeelundiue have extensive external taste bud systems which facilitate non-visual prey location. External tastebuds are lacking in P.fluvilurus and A. scuphu; however, these two species have relatively large, prominent eyes which facilitate visual prey location. The lateral line is well-developed in all five species, but R . plebeiu. R. Ieporinu and particularly P. novuezeelundiae have additional free neuromasts on their blind sides, which probably assist in prey location.The feeding habits of these flatfish species closely reflect their morphological and sensory specializations. A detailed feeding study in Wellington Harbour, New Zealand showed that R. plebeiu, R. leporinu and P. novuezeelundiue have closely overlapping diets consisting of largely sedentary or inactive invertebrates living in the bottom sediments. In contrast, P.j?avilurus and A. scupha have specialized diets of one or two species only. While the latter two species differ in that P.Juvilurus is a benthic feeder and A. scuphu is pelagic feeder, both are visual feeders and therefore more specialist than the other three species.

show abstract

Section: Sensory Systemsmentioning

confidence: 98%

Morphological and sensory specializations of five New Zealand flatfish species, in relation to feeding behaviour

Livingston

1987

Journal of Fish Biology

View full text Add to dashboard Cite

show abstract

“…Strain receptors in fish fins are able to sense hydrodynamic loading and contact with surrounding surfaces within a cluttered environment [18][19][20]. Additionally, moray eels use 'touch-corpuscles' in addition to free nerve endings to search out appropriate prey items [21]. Importantly, however, the tactile receptors in moray eels are not homologous to touch receptors found in other vertebrates, as indicated by phylogenetic distribution and differing in both anatomy and function.…”

Section: Introductionmentioning

confidence: 99%

Knowing when to stick: touch receptors found in the remora adhesive disc

et al. 2020

View full text Add to dashboard Cite

Remoras are fishes that piggyback onto larger marine fauna via an adhesive disc to increase locomotor efficiency, likelihood of finding mates and access to prey. Attaching rapidly to a large, fast-moving host is no easy task, and while research to date has focused on how the disc supports adhesion, no attention has been paid to how or if remoras are able to sense attachment. We identified push-rod-like mechanoreceptor complexes embedded in the soft lip of the remora adhesive disc that are known in other organisms to respond to touch and shear forces. This is, to our knowledge, the first time such mechanoreceptor complexes are described in fishes as they were only known previously in monotremes. The presence of push-rod-like mechanoreceptor complexes suggests not only that fishes may be able to sense their environment in ways not heretofore described but that specialized tactile mechanoreceptor complexes may be a more basal vertebrate feature than previously thought.

show abstract

“…al. 1959, Bardach & Loewenthal 1961. We believe that this generally also applies to G. ocellatus, since during a very dark moonless night dive, fish baits tightly sealed inside clear plastic bags failed to attract sand morays before opened.…”

Section: Discussionmentioning

confidence: 94%

“…The biology of the central and south west Atlantic morays dwelling in clear water reefs is relatively well known (e. g., Bardach et al 1959, Bardach & Loewenthal 1961, Dubin 1982, Abrams & Schein 1986. However very little is known about the biology of G. ocellatus, an abundant species over mud/sand bottoms (Carvalho-Filho 1999).…”

Section: Introductionmentioning

confidence: 99%

Activity, habitat utilization, feeding behaviour, and diet of the sand moray Gymnothorax ocellatus (Anguilliformes, Muraenidae) in the south western Atlantic

Santos¹,

Castro

2003

Biota Neotrop.

View full text Add to dashboard Cite

Activity, habitat utilization, feeding behaviour, and diet of the sand moray Gymnothorax ocellatus (Anguilliformes, Muraenidae) in the South western Atlantic.The sand moray Gymnothorax ocellatus is a nocturnal predator from the western South Atlantic that actively forages on the bottom, preying mostly on crustaceans (mainly shrimps and crabs) and ray-finned fishes, which are located primarily by the sense of smell. The individuals stay stationary during the day, almost always being hidden in individual tunnels dug by animals other than the morays in the muddy sand bottom.Key words: Muraenidae; Gymnothorax ocellatus; habitat use; feeding behaviour; diet. ResumoAtividade, utilização do habitat, comportamento alimentar, e dieta da moréia-de-areia Gymnothorax ocellatus (Anguilliformes, Muraenidae) no Atlântico sudoeste.A moréia-de-areia Gymnothorax ocellatus é um predador noturno do Atlântico ocidental que forrageia ativamente o fundo, predando principalmente crustáceos (em especial camarões e siris) e peixes actinopterígios, os quais são localizados principalmente pelo olfato. Os indivíduos permanecem inativos durante o dia, quase sempre escondidos em túneis individuais escavados por outros animais, que não moréias, em substrato areno-lodoso. Palavras

show abstract

Touch Receptors in Fishes with Special Reference to the Moray Eels (Gymnothorax vicinus and G. moringa)

Cited by 15 publications

References 0 publications

Morphological and sensory specializations of five New Zealand flatfish species, in relation to feeding behaviour

Morphological and sensory specializations of five New Zealand flatfish species, in relation to feeding behaviour

Knowing when to stick: touch receptors found in the remora adhesive disc

Activity, habitat utilization, feeding behaviour, and diet of the sand moray Gymnothorax ocellatus (Anguilliformes, Muraenidae) in the south western Atlantic

Contact Info

Product

Resources

About