日本新鳋（Poecilostomatoida目：鳋科），一种北美新发现的寄生桡足类动物。

Neoergasilus japonicus (Poecilostomatoida: Ergasilidae), a parasitic copepod new to North America.

作者信息

Hayden K J, Rogers W A

机构信息

Department of Fisheries and Allied Aquacultures, Alabama Agricultural Experiment Station, Auburn University, 36849-5419, USA.

出版信息

J Parasitol. 1998 Feb;84(1):88-93.

PMID:9488343

Abstract

Adult, gravid female Neoergasilus japonicus Harada, 1930 are described from several species of fish from Lee County, Alabama. Samples of bluegill Lepomis macrochirus Rafinesque (n = 25), largemouth bass Micropterus salmoides Lacépéde (n = 6), redear sunfish Lepomis microlophus Gunther (n = 5), and channel catfish Ictalurus punctatus Rafinesque (n = 1) were collected between November 1993 and May 1995. Prevalence of infection was 100% in all fish collected. The dorsal fin was the site of infection containing the highest number of parasites and the anal fin showed the highest frequency of infection. Morphological comparisons are made between this report and previous descriptions, and disparities among them are indicated. New hosts for N. japonicus include largemouth bass, channel catfish, and redear sunfish. This report is the first North American record for the genus Neoergasilus.

摘要

本文描述了采自阿拉巴马州李县几种鱼类的成年妊娠雌性日本新鱼虱（Neoergasilus japonicus Harada，1930）。1993年11月至1995年5月期间，采集了蓝鳃太阳鱼（Lepomis macrochirus Rafinesque，n = 25）、大口黑鲈（Micropterus salmoides Lacépéde，n = 6）、红耳太阳鱼（Lepomis microlophus Gunther，n = 5）和斑点叉尾鮰（Ictalurus punctatus Rafinesque，n = 1）的样本。所有采集的鱼类感染率均为100%。背鳍是感染部位，寄生虫数量最多，臀鳍感染频率最高。本报告与以往描述进行了形态学比较，并指出了它们之间的差异。日本新鱼虱的新宿主包括大口黑鲈、斑点叉尾鮰和红耳太阳鱼。本报告是新鱼虱属在北美的首次记录。