Introduction of the euryhaline epibenthic hydromedusa Vallentinia gabriellae Vannucci Mendes, 1948 (Hydrozoa: Limnomedusae) to Indian waters

IF 1.1 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY
Hari Praved, K. B. Neethu, P. H. Praved, K. V. Neethu, Annette F. Govindarajan, S. Nandan, B. Aneesh, P. Jayachandran
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Abstract

Abstract The epibenthic euryhaline hydromedusa Vallentinia gabriellae Vannucci Mendes, 1948 is an olindiid species native to tropical Atlantic waters. Here, we describe the cryptic introduction of this species in an estuary along the coast of Kerala, in southwestern India. This study records the existence of V. gabriellae outside of Atlantic waters for the first time and documents its geographical range expansion. Our identification was based on a combined morphological and DNA barcoding assessment using the COI and 28S markers. Although we noted some morphological differences between our specimens and those from their native range, our findings were conclusive. We suggest that phenotypic plasticity may result from differences such as prey availability between the native and introduced habitats. V. gabriellae medusae are epibenthic and cling to a variety of hard and soft substrates, including bivalves. Our specimens were associated with the invasive fouling mussel Mytella strigata, and we suggest that V. gabriellae could have been transported along with these mussels to the Kerala coast.
泛盐底栖水生水母valentinia gabriellae Vannucci Mendes, 1948引进印度水域(水生动物:Limnomedusae)
摘要表海底广盐水藻Vallentinia gabriellae Vannucci Mendes,1948是一种原产于热带大西洋水域的olindiid物种。在这里,我们描述了该物种在印度西南部喀拉拉邦海岸河口的神秘引入。这项研究首次记录了V.gabriellae在大西洋水域外的存在,并记录了其地理范围的扩大。我们的鉴定是基于使用COI和28S标记的形态学和DNA条形码联合评估。尽管我们注意到我们的标本与它们的本土标本之间存在一些形态学差异,但我们的发现是决定性的。我们认为表型可塑性可能是由于原生栖息地和引入栖息地之间的猎物可用性等差异造成的。M.gabriellae medusae是表海底生物,附着在各种坚硬和柔软的基质上,包括双壳类。我们的标本与入侵污染贻贝Mytella strigata有关,我们认为V.gabriellae可能与这些贻贝一起被运送到喀拉拉邦海岸。
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来源期刊
CiteScore
2.30
自引率
8.30%
发文量
68
审稿时长
3-8 weeks
期刊介绍: JMBA is an international journal, publishing original research on all aspects of marine biology. It includes pioneering work taking place today on major issues concerning marine organisms and their environment. Subjects covered include: ecological surveys and population studies of marine communities; physiology and experimental biology; taxonomy, morphology and life history of marine animals and plants; and chemical and physical oceanographic work. Included with 2010 online subscriptions: Marine Biodiversity Records.
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