Related Papers
A mechanical piston action may assist pelvic–pectoral fin antagonism in tree-climbing fish
Saifullah Hidayat
Egyptian Journal of Aquatic Biology and Fisheries
Mudskipper Fish as a Bio-indicator for Heavy Metals Pollution in a Coastal Wetland
2020 •
Rizmi Yunita
Fish and Fisheries
Adaptations of amphibious fish for surviving life out of water
2005 •
Martin Sayer
There are a small number of fish species, both marine and freshwater, that exhibit a truly amphibious habit that includes periods of aerial exposure. The duration of emersion is reflected in the level of physical and physiological adaptation to an amphibious lifestyle. Fish that are only briefly out of water retain predominantly aquatic attributes whereas there are semi-terrestrial species that are highly adapted to prolonged periods in the aerial habitat. Desiccation is the main stressor for amphibious fish and it cannot be prevented by physiological means. Instead, amphibious fish resist excessive water loss by means of cutaneous modification and behavioural response. The more terrestrially adapted fish species can tolerate considerable water loss and may employ evaporation to aid thermoregulation. The amphibious habit is limited to fish species that can respire aerially. Aerial respiration is usually achieved through modification to existing aquatic pathways. Freshwater air-breathers may respire via the skin or gills but some also have specialized branchial diverticula. Marine species utilize a range of adaptations that may include modified gills, specialized buccopharyngeal epithelia, the intestine and the skin. Areas of enhanced respiratory activity are typified by increased vascularization that permits enhanced perfusion during aerial exposure. As with other adaptations the mode of nitrogenous elimination is related to the typical durations of emersion experienced by the fish. Intertidal species exposed on a regular cycle, and which may retain some contact with water, tend to remain ammoniotelic while reducing excretion rates in order to prevent excessive water loss. Amphibious fish that inhabit environments where emersion is less predictable than the intertidal, can store nitrogen during the state of emersion with some conversion to ureotelism or have been shown to tolerate high ammonia levels in the blood. Finally, the more amphibious fish are more adapted to moving on land and seeing in air. Structural modifications to the pectoral, pelvic, dorsal and anal fins, combined with a well-developed musculature permit effective support and movement on land. For vision in air, there is a general trend for fish to possess close-set, moveable, protruberant eyes set high on the head with various physical adaptations to the structure of the eye to allow for accurate vision in both air and water.
Mudskippers (Literature Review)
david clayton
Hydrobiologia
Ecomorphological adaptation in three mudskippers (Teleostei: Gobioidei: Gobiidae) from the Persian Gulf and the Gulf of Oman
2017 •
Ainhoa Agorreta
Histological study on the skin structure in two mudskippers, Periophthalmus waltoni and Boleophthalmus dussumieri in relation to their terrestrial life
Ashraf Jazayeri
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 ...
BEHAVIOUR AND SEXUAL DIMORPHISM OF THE BLUE MUDSKIPPER, SCARTELAOS HISTOPHORUS (PISCES: GOBIIDAE)
Ian Tibbetts, Kathy Townsend
There is a lack of knowledge of basic ecological and behavioural aspects of these amphibious gobies (Townsend & Tibbetts, 1995). This study sets out to comprehensively document and analyse the behaviours of Scartelaos histophorus while exposed at low tide and to investigate the possible sexual differentiation in both the behaviour and anatomy of this species. Study of the behaviours of S. histophorus identified feeding, crawling and resting as the most common behaviours. S. histophorus are territorial; resident animals were observed to defend their territory from both conspecifics and fiddler crabs. Physical factors such as tide, weather and temperature influence behaviours exhibited by S. histophorus. Rolling increased significantly with increased temperature, clear weather and during midday. Resting increased significantly during late afternoon relative to morning and midday. Proportion of time spent skipping was affected by tide, temperature and time of day. Sexual dimorphism and sex-specific behaviours were observed in S. histophorus. Males have white eyes and are larger; while females have black eye borders, are smaller and possess white lateral patches on the body. Significant differences were found between the feeding, crawling, social and agonistic behaviours of males and females. One behaviour - tail stands was performed only by males.
Marine biology
Multivariate characterisation of the habitats of seven species of Malayan mudskippers (Gobiidae: Oxudercinae)
2009 •
Hakan Bozdoğan
IOP Conference Series: Earth and Environmental Science
Diversity and behaviour of mudskippers of Tanjung Piai, Pontian, Johor
lili tokiman
This paper describes an effort to study the diversity and behaviour of mudskippers occurring in the RAMSAR site Tanjung Piai, Pontian, Johor. Ten species from four genera of mudskippers were reported here. They are all members of the family Gobiidae and subfamily Oxudercinae. The most species rich genus was Periophthalmus (five species) followed by Baleophthalmus and Oxuderces (two species each). The fourth genus Periophthalmodon was represented by one species. Indication is that Malaysia may harbour 19 species representing 12 genera. The giant mudskipper, Periophthalmodon schlosseri was found at all level and stages of the intertidal zones. Being the largest in size of approximately 20cm, Periophthalmodon schloserii also shows interesting courting and mating behaviour and tree climbing. Baleophthalmus boddarti and Scartelaos histophorus are two other common species. This paper illustrates the different species at Tanjung Piai with photographs and endeavours to make notes of their p...
Journal of Morphology
Gross and fine anatomy of the respiratory vasculature of the mudskipper, Periophthalmodon schlosseri (Gobiidae: Oxudercinae)
2011 •
Dr Mazlan Abd Ghaffar
