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首页> 外文期刊>Marine biology >Untangling the effects of size, habitat and invertebrate biodiversity on parasite prevalence in the Caribbean spiny lobster
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Untangling the effects of size, habitat and invertebrate biodiversity on parasite prevalence in the Caribbean spiny lobster

机译：弄清加勒比刺龙虾的大小，栖息地和无脊椎动物生物多样性对寄生虫流行的影响

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摘要

The spiny lobster Panulirus argus is an important benthic mesopredator and a major fishing resource across the Wider Caribbean region. This species is host to the pathogenic virus PaV1 and metacercariae of Cymatocarpus solearis, a digenean trematode whose first intermediate host remains unknown. Previous studies found that the probability of infection with PaV1 was higher in juvenile lobsters and in densely vegetated habitats (suggesting that marine vegetation can be an environmental reservoir for PaV1), whereas the probability of infection with C. solearis was higher for larger lobsters and in poorly vegetated habitats. To increase insight into the role of habitat and body size in the ecology of lobster diseases, the presence of both C. solearis and PaV1 in P. argus was investigated across three contrasting zones in Bahia de la Ascension, Mexico (19 degrees 35 ' 27 '' N, 87 degrees 38 ' 06 '' W): reef, lagoon and shallow habitat. Additionally, habitat complexity, cover of benthic components, and macroinvertebrate biodiversity were characterized in each zone. Consistent with previous studies, probability of infection with PaV1 (both at a clinical and infective level) decreased with increasing lobster size and was highest in the seagrass-rich lagoon, supporting the idea that marine vegetation could be an environmental reservoir for PaV1. In contrast, the probability of infection with C. solearis increased significantly with lobster size but did not vary with zone, suggesting no relationship with benthic substrate type. However, based on results of macroinvertebrate diversity, the gastropods Cerithium litteratum and Tegula fasciata are put forward as potential candidates for the first intermediate hosts of C. solearis.
机译：多刺龙虾Panulirus argus是整个加勒比海地区的重要底栖中捕蝇器和主要捕捞资源。该物种是致病性病毒PaV1和比目鱼Cymatocarpus solearis的meta尾的宿主，Cymatocarpus solearis是一种双基因吸虫，其第一个中间宿主仍然未知。先前的研究发现，在幼龙虾和植被茂密的生境中，PaV1感染的可能性更高（这表明海洋植被可能是PaV1的环境蓄水库），而在大龙虾和大龙虾中，比目鱼的感染可能性更高。植被差的栖息地。为了更深入地了解生境和体型在龙虾疾病生态中的作用，在墨西哥巴伊亚德拉升天的三个对比区（19度35'27 ''N，87度38'06''W）：礁石，泻湖和浅层栖息地。此外，在每个区域都对生境的复杂性，底栖生物的覆盖以及大型无脊椎动物的生物多样性进行了表征。与以前的研究一致，PaV1的感染概率（在临床和感染水平上）都随着龙虾大小的增加而降低，并且在富含海草的泻湖中最高，这支持了海洋植被可能是PaV1的环境蓄水库的想法。相比之下，比目鱼的感染率随龙虾大小而显着增加，但不随区域而变化，表明与底栖底物类型无关。然而，基于大型无脊椎动物多样性的结果，提出了腹足纲Cerithium litteratum和Tegula fasciata作为潜在的C. solearis中间寄主。

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  • 来源
    《Marine biology》 |2019年第9期|113.1-113.15|共15页
  • 作者

    Davies Charlotte E.; Briones-Fourzan Patricia; Lozano-Alvarez Enrique;

  • 作者单位

    Univ Nacl Autonoma Mexico Unidad Acad Sistemas Arrecifales Inst Ciencias Mar & Limnol Puerto Morelos 77580 Quintana Roo Mexico|Swansea Univ Coll Sci Dept Biosci Singleton Pk Swansea SA2 8PP W Glam Wales;

    Univ Nacl Autonoma Mexico Unidad Acad Sistemas Arrecifales Inst Ciencias Mar & Limnol Puerto Morelos 77580 Quintana Roo Mexico;

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