Size Relationship of the Ectoparasite Tachaea chinensis in the Host Shrimp Palaemon paucidens From Shiga Prefecture, Japan

被引：2

作者：

Khalfan, Al-Wahaibi Mohamed ^{[1
]}

Imai, Tadashi ^{[2
]}

Hashem, Shaharior ^{[3
]}

Tani, Shotaro ^{[1
]}

Saito, Hidetoshi ^{[1
]}

机构：

[1] Hiroshima Univ, Grad Sch Integrated Sci Life, Dept Bioresource Sci, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima 7398528, Japan

[2] Japan Fisheries Res & Educ Agcy, Fisheries Technol Inst, 234 Yashima Higashi, Takamatsu, Kagawa 7610111, Japan

[3] Bangladesh Agr Univ, Dept Aquaculture, Mymensingh 2202, Bangladesh

来源：

ZOOLOGICAL SCIENCE | 2022年 / 39卷 / 04期

基金：

日本学术振兴会;

关键词：

Corallanidae; Lake Biwa; Neocaridina; parasite; Isopoda; FRESH-WATER SHRIMP; SINENSIS SOLLAUD; ISOPODA CORALLANIDAE; SEASONAL OCCURRENCE; WESTERN JAPAN; THIELEMANN; INFECTION; RECORDS; PRAWNS;

D O I：

10.2108/zs220006

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Monthly sampling of freshwater shrimps infested by the corallanid ectoparasite Tachaea chinensis was conducted at an agricultural canal of the Etsura River system, Shiga Prefecture, Japan, from April 2018 through December 2019. A total of 944 Palaemon paucidens and 279 Neocaridina spp. were collected, and 203 immature T. chinensis were found attached to the carapace of these hosts. Mean prevalence was 23.1% for P. paucidens and 6.4% for Neocaridina spp. Newly hatched T. chinensis ectoparasitizing P. paucidens were detected in August 2018 (minimum body length of parasite 3.2 mm) and appeared continually until June 2019 (maximum body length of 10.3 mm) and were not observed in July. In contrast, T. chinensis on Neocaridina spp. were first detected in August of each year (with minimum body length of 2.0 mm) and were observed until September in 2018 and to November in 2019 (maximum body length of 5.8 mm). Ratios of the body length of T. chinensis to the carapace length of the host shrimp were almost constant (0.8-0.9) with the host species and parasite growth. Although infestation by early- life-stage individuals of T. chinensis was observed on both shrimp species, P. paucidens appeared to be the principal host for individuals larger than 6 mm in body length.

引用

页码：336 / 342

页数：7

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