Histological study on the skin structure in two mudskippers, Periophthalmus waltoni and Boleophthalmus dussumieri in relation to their terrestrial life

Abstract

Microscopic structure of skin in two amphibious mudskipper fish; Boleophthalmus dussumieri Valenciennes, 1837 (B. dussumeri) and Periophthalmus waltoni Koumans, 1941 (P. waltoni) were investigated in relation to their lifestyle. The general structure of skin is the same among the two species. Epidermis in B. dussumeri was thicker significantly than P. waltoni. The dermal bulges were only well developed in the skin of B. dussumeri. Mucous cells were absent in the epidermis of P. waltoni but present in B. dussumeri. Both B. dussumeri and P. waltoni have well-developed swollen middle cells as a shared epidermal feature. The thickness of the middle cell layer of the epidermis in B. dussumeri was significantly greater than in P. waltoni. Capillaries in the dorsal and ventral parts of the body are more closely distributed to the epidermal surface in P. waltoni than in B. dussumeri. The diffusion distance in the dorsal epidermis of P. waltoni was less than that in the ventral epidermis of B. dussumeri. A comparative examination of the skin of mudskipper species suggests that, due to the more terrestrial lifestyle adopted by P. waltoni, the skin contributes more to respiration.

Epidermal modifications in a hill stream catfish, Hara hara in relation to its natural habitat: A scanning electron microscope and histochemical investigation

“…Significant progress has been made in recent years in our knowledge of teleost fish skin focusing on surface architecture, histology, histochemistry and fluorescence microscopy. These include Cyprinus carpio (DePasquale, 2018), Hippoglossus hippoglossus (Alves et al, 2018), Chaca chaca (Mistri et al, 2018a, 2018b), Rhinogobius brunneus (Kim et al, 2022), Periophthalmus waltoni and Boleophthalmus dussumieri (Dorostghoal et al, 2022).…”

Histopathological Assessment in Liver and Kidney of Boleophthalmus pectinirostris Collected from The Kuala Tambangan Estuaryof South Kalimantan, Indonesia

“…(Genten et al, 2009;Chinnah et al, 2021;Dorostghoal, 2022). The percentage of damage was calculated from the weight average of histopathological change scores from 5 different fields, viewing each organ with the Manja Roenigk Histopathology Scoring model.…”