| 翻訳と辞書 |
| Pogonias cromis ： ウィキペディア英語版 |
Black drum
The black drum (''Pogonias cromis'') is a saltwater fish similar to its cousin, the red drum. It is the only species in the genus ''Pogonias''. Though most specimens are generally found in the 5-30 lb (2–14 kg) range, the black drum is well known as the largest of all the drum family with some specimens reaching excesses of 90 lb (40 kg). The world record black drum was just over 113 lb (51 kg). They are often black and/or gray in color with juvenile fish having distinctive dark stripes over a gray body. Their teeth are rounded and they have powerful jaws capable of crushing oysters and other shellfish. It is recommended those over 15 lb pounds (7 kg) should be released. Black drum are capable of producing tones between 100 Hz and 500 Hz when performing mating calls.
==Habits, distribution, and characteristics==
The black drum is usually found in or near brackish waters. Larger, older fish are more commonly found in the saltier areas of an estuary (closer to the ocean) near oyster beds or other plentiful food sources. Juvenile fish have 4 to 5 bold vertical black bars on a light background and can be mistaken for Sheepshead at first glance, but are distinguished on closer inspection because sheepshead have teeth and black drum have chin barbells. These stripes usually fade to dull grey as the fish grow from 12 in to 24 in in length. Juvenile fish are more commonly found in less salty areas and relate more strongly to structure and cover. In the western Atlantic, black drum are found from Nova Scotia to Florida, the Gulf of Mexico, the Antilles (uncommon), and the southern Caribbean coast; also from the Orinoco delta to Argentina.〔Pogonias cromis, Froese, R. and D. Pauly. Editors. 2009.FishBase. World Wide Web electronic publication. www.fishbase.org, version (07/2009). http://www.fishbase.org/Summary/SpeciesSummary.php?id=425〕 They are common between the Delaware Bay and Florida coasts, and most abundant along the Texas coast. After reaching maturity by the end of their second year, black drum spawn in and around estuarine waters. In Texas, most spawning takes place in February and March.〔Black Drum. Species Profiles: Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates (Gulf of Mexico). US Department of the Interior Fish and Wildlife Service and US Army Corps of Engineers Coastal Ecology Group, Biological Report 82(11.51), 1986〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Black drum」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|