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Overview |
Main identification features
- dorsal fin continuous
- back speckled
- dorsal fin and tail fin spotted
Head large, deep, bluntly rounded to oblique at front; lower jaw short, broad, without projecting knob; both lips with fleshy flaps, 12-21 on top lip; eyes not stalked, top corner of operculum with fringe of 8-17 slender flaps; dorsal fin continuous, origin usually behind anal fin origin, VIII-XII, 28-34 (usually 31); anal II, 35-41 (usually 38); tail base without notch underneath; pectoral broad-based, long, 14-16 (usually 15) rays; tail fin with 10 branched rays; lateral line continuous, bends under 6th-8th dorsal spine; scales smooth, head and belly scaleless; lateral line scales 48-56, 33-39 on straight part.
Color variable; upper body light tan to brownish, flecked, without strongly defined bars or blotches; white below, abdomen and side of head silvery; either 4-5 indistinct bars between eyes and dorsal fin, or spotted, or with dense reticulations; inside mouth pigmented; dorsal and tail and upper pectoral shaded to spotted; juveniles with 12-14 bars on upper back, series of distinct blotches just above midline of side.
Size: 16.5 cm.
Habitat: beaches and sandy areas.
Depth: 0.5-15 m.
Central Baja California and the Gulf of California to Panama, and the Galapagos.
Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 15 m.
Depth Range Min: 0.5 m.
Diet: mobile benthic crustacea (shrimps/crabs); mobile benthic gastropods/bivalves; bony fishes; mobile benthic worms.
Eastern Pacific Range: Northern limit=32; Southern limit=-2; Western limit=-115; Eastern limit=-79; Latitudinal range=34; Longitudinal range=36.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Sand & gravel; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 16.5 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); TEP endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;
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Names |
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Links to other sites |
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References |
- Dawson, C.E., 1976., Studies on eastern Pacific sand stargazers. 3. Dactylagnus and Myxodagnus with description of a new species and subspecies., Copeia, 1976(1):13-43.
- Doyle, K. D., 1998., Phylogeny of the sand stargazers (Dactyloscopidae: Blennioidei)., Copeia, 1998:76-96.
- Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo . Derechos reservados de los autores y Conservación Internacional.
- Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398.
- Gill, T.N., 1863., On the limits and affinity of the family of leptoscopoids., Proc. Acad. Nat. Sci. Phila., 15:501-506.
- Jordan , D.S. and Gilbert, C.H., 1883., Catalogue of the fishes collected by Mr. John Xantus at Cape San Lucas, which are now in the United States National Museum, with descriptions of eight new species., Proc. U.S. Nat. Mus., 5(1882):353-371.
- Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26.
- Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
- Osburn , R. C. and Nichols, J. T., 1916., Shore Fishes Collected by the 'Albatross' Expedition in Lower California with Descriptions of New Species., Bull. Amer. Mus. Nat. Hist., 35:139-181.
- Ricker, K.E., 1959., Mexican shore and pelagic fishes collected from Acapulco to Cape San Lucas during the 1957 cruise of the "Marijean"., Univ. Brit. Columbia Inst. Fish., Mus. Contrib., 3:18pp.
- Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.
- Villareal-Cavazos, A., Reyes-Bonilla, H., Bermúdez-Almada, B. and Arizpe-Covarrubias, O., 2000., Los peces del arrecife de Cabo Pulmo, Golfo de California, México: Lista sistemática y aspectos de abundancia y biogeografía., Rev. Biol. Trop., 48:413-424.
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Acknowledgements |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Dactylagnus&speciesname=mundus ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Dactylagnus&speciesname=mundus http://192.134.151.83/Summary/speciesSummary.php?genusname=Dactylagnus&speciesname=mundus ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Dactylagnus&speciesname=mundus https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Dactylagnus&speciesname=mundus ---> https://fishbase.mnhn.fr/summary/Dactylagnus-mundus.html
Dactylagnus mundus, Giant sand stargazer : fisheries
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Dactylagnus mundus
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Robertson, R.
Teleostei (teleosts) >
Blenniiformes
(Blennies) >
Dactyloscopidae
(Sand stargazers)
Etymology:
Dactylagnus:
Greek, daktyleys, -eos = a kind of grey mullet + Latin, agnus = pure, chaste (Ref.
45335
)
.
More on author:
Gill
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 15 m (Ref.
28023
), usually 0 - 5 m (Ref.
28023
). Tropical
Eastern Central Pacific: Pacific coast of Baja California and the northern Gulf of California to Panama. Also the Galapagos Islands.
Length at first maturity / Size / Weight / Age
Maturity: L
m
 
?
, range 7 - ? cm
Max length : 15.0 cm SL male/unsexed; (Ref.
28023
)
Sand dweller on protected beaches and near-shore sites in less than 5 m.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Grove, J.S. and R.J. Lavenberg
, 1997. The fishes of the Galápagos Islands. Stanford University Press, Stanford, 863 p. (Ref.
28023
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
25 May 2007
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
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Estimates based on models
Preferred temperature (Ref.
123201
): 20.8 - 28.8, mean 24.4 °C (based on 191 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 5.3 ±0.8 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
Price category (Ref.
80766
):
Unknown
.
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Updated: 2024-04-18 02:41:54 gmt
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