Lythrypnus dalli
| Lythrypnus dalli | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gobiiformes |
| Family: | Gobiidae |
| Genus: | Lythrypnus |
| Species: | L. dalli
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| Binomial name | |
| Lythrypnus dalli (C. H. Gilbert, 1890)
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| Synonyms | |
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Lythrypnus dalli, commonly known as the blue-banded goby or Catalina goby, is a species of goby. It is native to the eastern Pacific where it is found from Monterey Bay, California to northern Peru, including the Gulf of California.[1] It can be found in coastal waters at depths of from 0 to 76 metres (0 to 249 ft) with rocky substrates in which there are crevices for concealment. It is also known to hide amongst the spines of sea urchins. It is a bidirectional hermaphrodite and capable of rapidly switching sexes.[2] Having a size advantage and certain behavioral interactions can indicate which individual changes sex.[3]This species can reach a length of 6.4 centimetres (2.5 in) TL. It can also be found in the aquarium trade.[4] The specific name honours the malacologist William Healey Dall (1845-1927), who when trawling for specimens off Catalina Harbour, California, caught one of the type specimens.[5] The blue-banded goby (Lythrypnus dalli) is a small fish found in shallow coastal waters of Southern California, commonly inhabiting eelgrass beds and rocky reefs. Known for its vibrant blue stripes, it exhibits both simultaneous and sequential hermaphroditism, with larger females more likely to transition to male roles. The Blue Band Goby, Lythrypnus dalli, exhibits protandrous and protogynous sex changes, allowing individuals to adapt their sex based on social status within their populations.[6] These fish can switch between male and female reproductive functions depending on reproductive success, allowing for flexible adaptation to environmental conditions.This occurs when a male is eliminated from his territory by predation or when numerous females come together on a territory that is not occupied by a male. [7] Research has shown that males have higher androgen receptor (AR) levels, which are linked to male-specific courtship behaviors and sexual selection, enhancing their display vigor.
References
[edit]- ^ a b Van Tassell, J.; Lea, R. & Bearez, P. (2010). "Lythrypnus dalli". The IUCN Red List of Threatened Species. 2010: e.T183363A8100277. doi:10.2305/IUCN.UK.2010-3.RLTS.T183363A8100277.en.
- ^ Maxfield, Jessica M.; Cole, Kathleen S. (2019-11-01). "Structural changes in the ovotestis of the bidirectional hermaphrodite, the blue-banded goby (Lythrypnus dalli), during transition from ova production to sperm production". Environmental Biology of Fishes. 102 (11): 1393–1404. Bibcode:2019EnvBF.102.1393M. doi:10.1007/s10641-019-00914-2. ISSN 1573-5133.
- ^ Rodgers, E. W., Drane, S., & Grober, M. S. (2005). Sex Reversal in Pairs of Lythrypnus dalli: Behavioral and Morphological Changes. Biological Bulletin, 208(2), 120–126. https://doi.org/10.2307/3593120.
- ^ Froese, Rainer; Pauly, Daniel (eds.). "Lythrypnus dalli". FishBase. June 2013 version.
- ^ Christopher Scharpf; Kenneth J. Lazara (14 July 2018). "Order GOBIIFORMES: Family GOBIIDAE (I-p)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 3 September 2018.
- ^ Rodgers, E. W.; Earley, R. L.; Grober, M. S. (June 2007). "Social status determines sexual phenotype in the bi-directional sex changing bluebanded goby Lythrypnus dalli". Journal of Fish Biology. 70 (6): 1660–1668. Bibcode:2007JFBio..70.1660R. doi:10.1111/j.1095-8649.2007.01427.x. ISSN 0022-1112.
- ^ (Chin et al., 2022c).
External links
[edit]
- Photos of Lythrypnus dalli on Sealife Collection
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