Abstract

The Caribbean spiny lobster, Panulirus argus (Latreille, 1804), is an important resource in the Western Atlantic Ocean, Caribbean Sea, and Gulf of Mexico. A nemertean egg predator of P. argus, Carcinonemertes conanobrieniSimpson, Ambrosio & Baeza, 2017, was recorded in Florida in 2017 and Colombia in 2018. This study sought to investigate the presence of C. conanobrieni in P. argus in Saint Kitts and Nevis, eastern Caribbean Sea. Nemerteans were observed in the brood masses of P. argus. Molecular techniques confirmed its presence in the P. argus population on Saint Kitts. Egg, juvenile, and adult stages of C. conanobrieni and of an undescribed Carcinonemertes sp. were found in the brood masses of 27 of 31 (87%) ovigerous P. argus. Differences in the shape of the nemertean egg masses (string versus spherical arrangement) were confirmed as two distinct species of Carcinonemertes Coe, 1902 using molecular analyses. The juvenile stage of the undescribed Carcinonemertes sp. was detected in the gills of 72 of 320 (23%) of the P. argus individuals from Saint Kitts. The prevalence of branchial nemertean infestation was not significantly different among male and female P. argus. Female lobsters with ovaries in early stages of gonadal maturation were more likely to have branchial nemerteans relative to those with ovaries in late stages of maturation, suggestive of nemertean migration from gills to egg mass once the host oviposits. This is the first report of C. conanobrieni in the Caribbean spiny lobster from the eastern Caribbean, which is approximately 1,300 miles from Florida and 1,000 miles from Colombia. This is also the first report of an undescribed nemertean worm in P. argus. The high prevalence of Carcinonemertes spp. in P. argus raises concern for the extent to which these egg predators may be impacting P. argus in Saint Kitts, an important fishery on the island.

中文翻译：

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西印度群岛圣基茨的两种Carcinonemertes Coe，1902年（Nemertea：Carcinonemertidae）感染了加勒比刺龙虾Panulirus argus（Latreille，1804年）（Decapoda：Achelata：Palinuridae）。

摘要

加勒比多刺龙虾Panulirus argus（Latreille，1804）是西大西洋，加勒比海和墨西哥湾的重要资源。的纽形蛋捕食P.乌鳢，Carcinonemertes conanobrieni辛普森，安布罗西奥和巴埃萨，2017年，被记录在佛罗里达州在2017年和哥伦比亚2018年该研究旨在调查的存在C. conanobrieni在P.乌鳢圣基茨和尼维斯，东加勒比海。纽虫在育雏群众观察P.乌鳢。分子技术证实了它存在于圣基茨的阿古斯丁香种群中。C. conanobrieni的卵，幼年和成年阶段和未描述的Carcinonemertes sp。在31个（87％）产卵的阿古斯青霉的孵化肿块中被发现。在纽形动物卵块（字符串的形状的差异相对于球形布置）被确认为两个不同的物种Carcinonemertes使用分子分析科，1902。未描述的Carcinonemertes sp。的少年阶段。在圣基茨的320个阿格斯体育中有72个（被检出（占23％）。男性和女性P. argus的分支性nemertean感染的患病率没有显着差异。与性腺成熟后期相比，在性腺成熟早期阶段具有卵巢的雌性龙虾更可能具有branch状线虫，这表明一旦宿主产卵，则从mer类到卵团的线性迁移。这是C. conanobrieni在加勒比东部多刺龙虾中的首次报道，该龙虾距佛罗里达州约1300英里，距哥伦比亚约1000英里。这也是阿格斯体育中未描述的nemertean蠕虫的首次报道。Carcinonemertes spp的流行率很高。在P. ARGUS提高了对这些蛋大鳄可能影响的程度的关注P.阿格斯在圣基茨岛上一个重要的渔业。