Boleophthalmus boddarti

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Boleophthalmus boddarti

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gobiiformes
Family: Oxudercidae
Genus: Boleophthalmus
Species:
B. boddarti
Binomial name
Boleophthalmus boddarti
(Pallas, 1770)
Synonyms

Gobius boddarti

Boleophthalmus boddarti, commonly known as Boddart's goggle-eyed goby, is a species of mudskipper native to the Indo-Pacific, and the type species of the genus Boleophthalmus.[2]

In Vietnam, this species is called "Cá Bống Sao", which means "star sky goby".

Taxonomy

Etymology

The specific epithet, boddarti, is in reference to Pierre Boddaërt, who collected the holotype for the species.[3][4]

Description

Like other mudskippers, Boleophthalmus boddarti is capable of

tidal flats in its native range at low tide. The fish is boldly patterned, with rows of blue spots along its flanks and cheeks, as well as dark bands running down its body.[5]

Anatomy

B. boddarti has fused pelvic fins, as in its fin rays are interconnected and merged with its skin, which aid in its walking across the mudflats it lives in. Its large pelvic ray fin bone structure provides B. boddarti with a sitting pad for stability in semi-terrestrial substrate and cushion for landing after hopping. The pelvic fins can also flatten into a slightly concave shape when it makes impact to further cushion its landing. Similarly to other mudskippers, B. boddarti has moist skin with

capillaries near the surface in dermal bulges that allow it to perform cutaneous respiration, although it has been observed to have less mucous-secreting cells than more terrestrial species of mudskipper such as Periophthalmus variabilis, on account of it living primarily in aquatic areas and thus having greater access to moisture.[6]

Distribution

B. boddarti occurs across the Indo-Pacific region, ranging from India in the west to Papua New Guinea in the east, with additional populations found on the coastline of China in the north and Sulaibikhat Bay in the Persian Gulf off the coast of Kuwait.[2][7] Populations in Malaysia and Sumatra are sympatric with the closely related species Boleophthalmus pectinirostris.[8] In India, the species is sympatric with the similarly-related Boleophthalmus dussumieri.[3]

Behaviour

Territoriality

Individuals of B. boddarti are noticeably territorial, and will fight with others of their species to defend their burrows at low tide, raising their dorsal fins as a

threat display. Males will also use their tail to jump into the air with their dorsal fins raised as part of a courting ritual to attract females to their burrows during the breeding season.[5]

Diet

Boleophthalmus boddarti is primarily herbivorous, and browses on

benthic crustaceans, polychaete worms, fish eggs and copepods.[1]

Reproduction

Male B. boddarti jump to attract females to spawn in their burrows.

Relationship with humans

As food

B. boddarti is edible, and is occasionally caught and eaten, though it isn't targeted by commercial fisheries. The species is sometimes found on sale at markets in the vicinity of its native range.[1] It is commercially important in Vietnam[9] and Thailand.[3]

Status and conservation

B. boddarti was evaluated as being of Least Concern in 2021, as the species occupies a wide range without significant fragmentation. While a definitive population size for the species is unknown, B. boddarti is believed to be relatively abundant according to recent surveying. The main threat to this species in its native range is water pollution.[1]

References

  1. ^ a b c d "Boleophthalmus boddarti". IUCN Red List. Retrieved 27 February 2023.
  2. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2023). "Boleophthalmus boddarti" in FishBase. February 2023 version.
  3. ^ a b c d e Polgar, Gianluca (7 May 2013). "The mudskipper - Boleophthalmus boddarti". www.mudskipper.it. Retrieved 26 February 2023.
  4. ^ Cuvier, Georges; Valenciennes (1828). Histoire naturelle des poissons. Paris: Chez F. G. Levrault.
  5. ^ a b Baker, Nick. "Blue-spotted Mudskipper - Boleophthalmus boddarti". www.ecologyasia.com. Retrieved 25 February 2023.
  6. S2CID 255611621
    .
  7. .
  8. ^ Polgar, Gianluca (1 June 2014). "The mudskipper - Boleophthalmus pectinirostris". www.mudskipper.it. Retrieved 15 February 2023.
  9. ^
    ISSN 0866-7160
    .
  10. ^ Chandran, Rejani; Jaiswar, A. K.; Jahageerdar, Shrinivas; Poojary, Nalini; Chakraborty, S. K. (26 November 2014). "Reproductive Biology of Boleophthalmus boddartii". J. Indian Fish. Assoc. 41: 57–69.