Microgobius urraca, Dark-finned sand goby

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Microgobius urraca Tornabene, van Tassell & Robertson, 2012

Dark-finned sand goby
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Image of Microgobius urraca (Dark-finned sand goby)
Microgobius urraca
Female picture by Van Tassell, J.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Gobiiformes (Gobies) 鱸形目 (Gobies) > Gobiidae (Gobies) 鰕虎魚科 (Gobies) > Gobiinae
Etymology: Microgobius: Greek, mikros = small + Latin, gobius = gudgeon (Ref. 45335);  urraca: Named after the Smithsonian Tropical Research Institute’s research vessel the Urraca, which served the institute between 1994-2007; noun in apposition..

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋; 深度上下限 12 - 20 m (Ref. 91780).

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Eastern Pacific, Panama.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 6.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 91780); 6.2 cm SL (female)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 8; 背的軟條 (總數): 14; 臀棘 1; 臀鰭軟條: 14; 脊椎骨: 27. This species is distinguished from Microgobius urraca in having the following characters: lateral scale rows 67-76; patch of ctenoid scales under the pectoral fin absent; unpigmented epaxial myosepta; first dorsal fin with a distinct oval-shaped dark blotch; three blue-white stripes on a dark caudal fin. It differs from the remaining eastern Pacific congeners in the number and type of scales (pectoral- and pelvic fin base without scales; pre-anal region with small embedded cycloid scales; small scales on anterior and ventral portions of trunk, partially imbedded, and in irregular rows, becoming larger and arranged in distinct rows dorsally and posteriorly; no small patch of ctenoid scales beneath pectoral fin); D1 VII, D2 I,14; A I,14; fleshy dorsal crest poorly developed and overall color pattern (Ref. 91780).

生物學特性     字彙 (例如 epibenthic)

Found over sand or sand and leaf litter bottoms; where collections are found in the latter, this species was collected with several specimens of Ptereleotris carinata and M. erectus. Presumed to be a burrowing species (Ref. 91780).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Tornabene, L., J.L. Van Tassel and D.R. Robertson, 2012. Microgobius urraca (Teleostei: Gobiidae), a new species of goby from the tropical eastern Pacific. Zootaxa 3447:41-55. (Ref. 91780)

IUCN 瀕危狀態 (Ref. 130435)

  未評估 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

 





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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00333 - 0.01504), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.3   ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).