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首页> 外文期刊>Marine biology >Unveiling the diet of the thermophilic starfish Ophidiaster ophidianus (Echinodermata: Asteroidea) combining visual observation and stable isotopes analysis
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Unveiling the diet of the thermophilic starfish Ophidiaster ophidianus (Echinodermata: Asteroidea) combining visual observation and stable isotopes analysis

机译：揭示嗜热海星的饮食，渗透性蛋白蛋白蛋白酶（Echinodermata：Asteroidea）结合了视觉观察和稳定同位素分析

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摘要

The starfish Ophidiaster ophidianus is an Atlanto-Mediterranean species protected under the EU's Habitat Directive. Despite the wide distribution and the current range of expansion of this thermophilic species in the northern Mediterranean Sea, nothing is known about its diet. Using field observations and delta C-13 and delta N-15 Stable Isotopes Analysis (SIA), the feeding habits of O. ophidianus were explored in two Mediterranean rocky reef areas located in the southern Tyrrhenian (Ustica Island, Italy) and the eastern Adriatic Sea (Molunat, Croatia). According to field observations, O. ophidianus preys mainly on crustose coralline algae (CCA) and the keratose sponge Ircinia variabilis in both areas. SIA confirmed the role of CCA in the diet of O. ophidianus but not that of the sponge and highlighted a not negligible role played by other sessile invertebrates, such us small gastropods and small sedentary worms. It was concluded that O. ophidianus is a facultative herbivore in Mediterranean rocky reefs.
机译：海星Ophidiaster Ophidianus是亚特兰托 - 地中海物种，受到欧盟的栖息地指令受保护。尽管北部地中海北部的这种嗜热物种的目前的分布广泛和目前的扩张，但它的饮食也不知道。使用田间观察和δC-13和Delta N-15稳定同位素分析（SIA），O. Ophidianus的饲养习惯在位于Tyrrhenian（Ustica Island，意大利）和东部亚德里亚特的两位地中海岩石礁地区海（Molunat，克罗地亚）。根据田间观察，O. Ophidianus Preys主要在甲壳素藻类（CCA）和角蛋黄酱中的角蛋黄酱中的两个区域。 SIA证实了CCA在O. Ophidianus的饮食中的作用，而不是海绵的饮食，并强调了其他术式无脊椎动物，这些小型美食和小型久坐蠕虫的不可忽略的作用。得出的结论是，O. Ophidianus是地中海岩石礁石的伴侣食草动物。

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  • 来源
    《Marine biology》 |2020年第7期|93.1-93.11|共11页
  • 作者

    Di Trapani Francesco; Agnetta Davide; Bonaviri Chiara; Badalamenti Fabio; Gianguzza Paola;

  • 作者单位

    Univ Palermo CoNISMa Dept Earth & Marine Sci Archirafi 18 I-90123 Palermo Italy;

    Natl Inst Oceanog & Appl Geophys OGS Via Beirut 2-4 I-34151 Trieste Italy;

    Univ Palermo CoNISMa Dept Earth & Marine Sci Archirafi 18 I-90123 Palermo Italy;

    CNR IAS Lungomare Cristoforo Colombo I-90149 Palermo Italy;

    Univ Palermo CoNISMa Dept Earth & Marine Sci Archirafi 18 I-90123 Palermo Italy;

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