nimet breadcrumb-navigoinnissa
Etheostoma lepidum és una espècie de peix de la família dels pèrcids i de l'ordre dels perciformes.
Els mascles poden assolir els 6,6 cm de longitud total.[2]
Es troba a Nord-amèrica: Texas i Nou Mèxic.[2]
The greenthroat darter (Etheostoma lepidum) is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is found in Colorado, Guadalupe and Nueces River drainages in Texas; and in Pecos River system in New Mexico.[2]
Macrohabitat: Basically a spring-run species.[3] Mesohabitat: Scarce or absent from very eurythermal locations.[3] Occurs in a variety of non-turbid stream habitats with substrates from bedrock to silt covered (Platania 1980). A typical riffle species occurring over gravel and rubble, especially when aquatic vegetation is present. It also lives in spring areas, sometimes in cool vegetated pools.[4] Largest populations occur in vegetated rocky riffles.[5][6][7][8] Species benthic after hatching.[6][9]
October or November through May, with populations in stenothermal environments having a longer spawning season than those in more eurythermal environments.[6][3] In the Colorado River, Texas, spawning occurs November – May;[10] in the South Concho River, Texas, spawning occurs October – May.[11] Hubbs (1985)[3] reported marked drop in reproductive activity when water temperature was raised from 20 to 23 °C.
Eggs laid on vegetation,[12] or on the underside of rocks.[6]
In the South Concho River, TX, eggs averaged 1.3 mm in diameter, and increased in number with female size; average number of eggs in females examined was 74, with a range of about 15–200.[11] In aquaria, spawning was observed at approximately 15–25 °C; over a 63-day period, a pair of Etheostoma lepidum laid 13 batches of eggs; numbers of eggs laid ranged from 47 to 109, totaling 1,115.[12] Optimal temperature for egg production apparently 20–23 °C; a female held at this temperature range was observed to produce eggs, in the laboratory environment, over a period of at least 251 days.[6] Egg incubation success is low above 24 degrees C.[13] At 28 degrees C, eggs hatch in 4–5 days, and hatch in about 40 days at 9 °C. Hubbs (1985)[3] noted that no difference in egg production could be correlated with daylength.
The greenthroat darter (Etheostoma lepidum) is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is found in Colorado, Guadalupe and Nueces River drainages in Texas; and in Pecos River system in New Mexico.
Etheostoma lepidum es una especie de peces de la familia Percidae en el orden de los Perciformes.
Los machos pueden llegar alcanzar los 6,6 cm de longitud total.[1]
Se encuentran en Norteamérica: Texas y Nuevo México.
Etheostoma lepidum Etheostoma generoko animalia da. Arrainen barruko Percidae familian sailkatzen da.
Etheostoma lepidum Etheostoma generoko animalia da. Arrainen barruko Percidae familian sailkatzen da.
Etheostoma lepidum is een straalvinnige vissensoort uit de familie van de echte baarzen (Percidae).[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1853 door Baird & Girard.
Bronnen, noten en/of referenties
麗鏢鱸為輻鰭魚綱鱸形目鱸亞目河鱸科的其中一種，分布於美國德克薩斯州科羅拉多河、Guadalupe河、Nueces河及新墨西哥州的Pecos河流域，體長可達6.6公分，棲息在礫石底質的溪流。
这是一篇與鱸形目相關的小作品。你可以通过编辑或修订扩充其内容。 