Morphological description and molecular characterization of Gnathia jimmybuffetti sp. nov. (Crustacea, Isopoda, Gnathiidae): the first new gnathiid in 100 years from the Floridian ecoregion

IF 1.5 4区地球科学 Q3 MARINE & FRESHWATER BIOLOGY

Bulletin of Marine Science Pub Date : 2023-01-01 DOI:10.5343/bms.2023.0040

A. Erasmus, K. A. Hadfield, P. Sikkel, Nico J. Smit

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Abstract

Gnathia jimmybuffetti sp. nov. is described from the Florida Keys. Morphological characterization of the male, female, and juvenile, as well as the life cycle development of the female is examined. The male of this new species is distinguished from other species from the Tropical Northwestern Atlantic marine province by the slightly produced frontal margin; absent mediofrontal process; single, strong, conical superior frontolateral process, with 2 pairs of long simple setae; and rounded inferior frontolateral process, the weak distally curved mandible with weakly convex dentate blade. In addition, molecular characterization for three life stages, (males, females, and praniza), is provided, as well as evidence for linking host DNA to juvenile stages. This paper contributes to our understanding of the gnathiid biodiversity of the Tropical Atlantic realm, specifically the Floridian ecoregion. Furthermore, this paper validates the methods of extracting and identifying host DNA from the gnathiid blood meal.

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(甲壳纲等足目Gnathia jimmybuffetti sp. 11 .):佛罗里达地区100年来首次发现的新Gnathia

来自佛罗里达群岛的Gnathia jimmybuffetti。形态特征的雄性，雌性，和少年，以及生命周期发育的雌性进行了检查。这个新种的雄性与来自热带西北大西洋海洋省的其他种类的区别在于它的额缘略生;中额突缺失;单根，强壮，圆锥形的上正面突起，具2对长单刚毛;和圆形下额外侧突，弱远端弯曲下颌骨弱凸齿叶片。此外，提供了三个生命阶段(雄性、雌性和雌性)的分子特征，以及将宿主DNA与幼年阶段联系起来的证据。这篇论文有助于我们对热带大西洋地区，特别是佛罗里达生态区的啮齿目生物多样性的理解。此外，本文还验证了从牙颌目血粉中提取和鉴定宿主DNA的方法。

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来源期刊

Bulletin of Marine Science 地学-海洋学

CiteScore

2.90

自引率

6.70%

发文量

审稿时长

6-12 weeks

期刊介绍： The Bulletin of Marine Science is a hybrid open access journal dedicated to the dissemination of research dealing with the waters of the world’s oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine policy, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, meteorology, and physical oceanography. In most regular issues the Bulletin features separate sections on new taxa, coral reefs, and novel research gear, instrument, device, or system with potential to advance marine research (“Research Tools in Marine Science”). Additionally, the Bulletin publishes informative stand-alone artwork with accompany text in its section "Portraits of Marine Science."