| 摘要: |
| 调查了大亚湾海域13种石斑鱼（Epinephelus spp.）寄生单殖吸虫群落，结果发现有10种鱼感染单殖吸虫，占调查鱼种类的四分之三，检获单殖吸虫16种，隶属于3科5属，其中拟合片虫属（Pseudorhabdosynochus spp.）10种；除鞍带石斑（E.lanceolatus）和拟青石斑（E.fasciatomaculosus）外，8种鱼可分别感染3-7种单殖吸虫；感染单殖吸虫种类最多的是玳瑁石斑（E.quoyanus）达7种，次之是青石斑（E.awoara）和养殖的橙点石斑（E.bleekeri）均感染6种；各单殖吸虫种类中，感染强度最大的是拟合片虫（P. serrani））（棕点石斑， E.fuscoguttatus）128只/尾，次之是石斑拟合片虫（P. grouperi）（青石斑）62只/尾，接下来是斜带拟合片虫（P. coioidesis）（大斑石斑， E.macrospilos）59只/尾和杯阴拟合片虫（P. cupatus）（玳瑁石斑）49只/尾；平均密度最高的是棕点石斑上检获的拟合片虫128只/尾；在检获的16种单殖吸虫中，8种可分别寄生于2种或2种以上石斑鱼，石斑鳞盘虫（Diplectanum grouperi）和拟合片虫在6种石斑鱼上都能检获，符合广寄生单殖吸虫种特征。有5种鱼检查尾数5尾以上的，其中玳瑁石斑单殖吸虫感染率最高62.07%，其内群落的物种丰富度与宿主体长呈显著正相关。 |
| 关键词: 大亚湾 石斑鱼 单殖吸虫 群落结构 |
| DOI：10.11693/hyhz20161100256 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目，30370242号；30771659号。 |
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| THE COMMUNITY STRUCTURE OF MONOGENEANS FROM EPINEPHELUS spp. IN DAYA BAY, SOUTH CHINA SEA |
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ZENG Bi-Jian1, HUANG Jian-Rong2, YANG Ting-Bao2
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1.College of Biology and Food Engineering, Applied Ecology Laboratory, Guangdong University of Education, Guangzhou 510303, China;2.College of Life Science, Sun Yat-Sen University, Guangzhou 510275, China
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| Abstract: |
| The community structure of monogeneans in Epinephelus spp. from Daya Bay, South China Sea was studied. Thirteen species of Epinephelus spp. (12 wild species and 2 species cultured-cage) were studied, from which 16 mongenean species, belonging to 5 genera of 3 families were found in 10 species of Epinephelus spp., more than three fourth. Except for E. lanceolatus and E. fasciatomaculosus, every of 8 species of fish severally harboured 3 to 7 species of monogeneans. In the species richness:7 in E. quoyanus and 6 in E. awoara and E. Bleekeri; in intensity:128 parasites/fish for P. serrani (E. fuscoguttatus), 62 for P. grouperi (E. awoara), 59 for P. coioidesis (E. macrospilos), and 49 for P. cupatus (E. quoyanus); the most abundance is P. serrani (E. fuscoguttatus) reached at 128 parasites per fish. Among the 16 species of monogeneans, 8 could parasitize more than 2 fish species. Diplectanum grouperi and Pseudorhabdosynochus serrani were detected from 6 fish species in the study. Among 5 fish species screened for over 5 individuals, E. quoyanus was the most prevalence of 62.07%, in which the species richness of ectoparasites in E. quoyanus at infracommunity level was significantly correlated positively with the size of host. |
| Key words: Daya Bay, South China Sea Epinephelusspp. Monogenea community structure |
