| 词条 | Rock greenling |
| 释义 |
| name = | image = Fish4016 - Flickr - NOAA Photo Library.jpg | image2 = Hexagrammos lagocephalus drawing.jpg | image_width = 240px | regnum = Animalia | phylum = Chordata | classis = Actinopterygii | ordo = Scorpaeniformes | familia = Hexagrammidae | genus = Hexagrammos | species = H. lagocephalus | binomial = Hexagrammos lagocephalus | binomial_authority = (Pallas, 1810) }}Hexagrammos lagocephalus is a colorful marine fish with the common name rock greenling in the greenling family.[1][2] It is sometimes known as fringed greenling and erroneously as the red rock trout.[3] AppearanceThe fish is maroon, with blue spot that fades to bright red.[1] The color pattern helps it blend in with its natural environment. It grows to up to 24 in (60 cm) long.[2] Most adult have blue mouths,[4] while the young have bright red eyes.[3] BehaviorThe species is usually solitary, but not aggressive, which has led to easy husbandry in public aquaria. It is sometimes cryptic, however, and often elusive to divers and spear fishermen, as they prefer living among the rock in the heavy surge.[3] DietH. lagocephalus is a generalized feeder, eating everything from invertebrates such as crabs and isopods to fish eggs and algae. When young, the fish eat zooplankton. RangeThe rock greenling's natural distribution is along the Pacific Coast from Alaska's Bering Sea to the coast of southern California. Its habitat of choice is rocky shoreline.[2] Sometimes,though, they can be found in tidepools and sandy areas.[3] Economic valueThough not commonly commercially fished like the related lingcod, they are a popular gamefish. Most live among areas impossible to fish by commercial boats.[3] They are commonly caught by sport fishers off exposed rocky shores.[4] References1. ^1 {{cite book |title=The Audubon Society Field Guide to North American Fishes, Whales & Dolphins |publisher=Chanticleer Press |year=1983 |page=725}} 2. ^1 2 {{cite book |title=Pacific Coast Inshore Fishes |publisher=Sea Challengers |year=1981 |page=50}} 3. ^1 2 3 4 {{cite book |title=Coastal Fishes of the Pacific Northwest |publisher=Harbour Publishing CO. LTD. |year=1986 |page=128}} 4. ^1 {{cite book |title=Peterson Field Guide: Pacific Coast Fishes |publisher=Houghton Mifflin Company |year=1983 |pages=155–156}} External links
5 : Hexagrammos|Fish of the Pacific Ocean|Western North American coastal fauna|Fish described in 1810|Taxa named by Peter Simon Pallas |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。