Parasites or predators? Gastropod ectoparasites and their scleractinian host corals at Koh Tao, Gulf of Thailand, with the description of a new species

Mehrotra, Rahul; Caballer, Manuel; Kaullysing, Deepeeka; Jualaong, Suthep; Hoeksema, Bert W.

doi:10.1007/s13199-023-00967-z

Symbiosis

2024

DOI: 10.1007/s13199-023-00967-z

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Parasites or predators? Gastropod ectoparasites and their scleractinian host corals at Koh Tao, Gulf of Thailand, with the description of a new species

Rahul Mehrotra,

Manuel Caballer,

Deepeeka Kaullysing

et al.

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Cited by 3 publications

References 84 publications

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Parasitism in coral reefs: Trophic ecology of crustacean ascothoracidan parasites and their coral hosts from Malaysia

Zalota,

Savchenko,

Miroliubov

et al. 2025

Zoology

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Parasitism in coral reefs: Trophic ecology of crustacean ascothoracidan parasites and their coral hosts from Malaysia

Zalota,

Savchenko,

Miroliubov

et al. 2025

Zoology

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Trophic Structure and Isotopic Niche of Invaded Benthic Communities on Tropical Rocky Shores

Pires-Teixeira,

Neres-Lima,

Barbosa

et al. 2024

Biology

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When a species is introduced in a new location, it is common for it to establish itself when it finds favorable conditions in the receptor community with regard to interspecific interactions with native species. The azooxanthellate corals Tubastraea coccinea and Tubastraea tagusensis are invasive species introduced in the Caribbean Sea, the Gulf of Mexico, and the Brazilian Southwest Atlantic. They are successful competitors for space, have multiple reproductive modes, and have high larval dispersion and recruitment, but studies on food and trophic relationships of the genus Tubastraea are still scarce. In the present study, we used isotopic values of δ13C and δ15N to investigate trophic relationships in rocky shore communities invaded by T. tagusensis and T. coccinea corals under different oceanographic and anthropogenic contexts. Using metrics derived from the isotopic values, we show that invaded communities have a lower degree of trophic diversity, with species characterized by similar trophic ecologies while abiotic factors seem to contribute to the biotic resistance of communities exposed to invasion events. Tubastraea spp. occupy a niche space similar to that occupied by the native community of suspension feeders, sharing resources already consumed by the receptor community, which makes invading corals successful competitors for food.

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Stirring up the muck: the systematics of soft-sediment Fionidae (Nudibranchia: Aeolidina) from the tropical Indo-Pacific

Kim,

Donohoo,

Gosliner

2024

PeerJ

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The tropical Indo-Pacific aeolid nudibranchs of the Fionidae are poorly known and have not been studied in a concerted manner. Many undescribed species are found throughout the Indian and Pacific Oceans and are concentrated in the Coral Triangle. With the recent publication of a revised systematic arrangement of the Fionidae, documentation and description of new taxa of Fionidae is especially warranted. Here we describe Tenellia bughaw Kim & Gosliner sp. nov., Tenellia puti Kim & Gosliner sp. nov., Tenellia nakapila Kim & Gosliner sp. nov., Abronica payaso Kim & Gosliner, sp. nov. and Abronica turon Gosliner & Kim sp. nov. from the waters of the Coral Triangle. Their phylogenetic placement in Fionidae is reviewed using three genes: cytochrome oxidase I (COI), 16s rRNA, and histone 3 (H3) in a Bayesian and maximum likelihood framework. A redescription of Tenellia yamasui (Hamatani, 1993) is also provided to clarify its distinctiveness from T. bughaw and T. puti. This study confirms that all four known species of Abronica are characterized by having an acutely pointed curved penial stylet, thus confirming a unique morphological synapomorphy for members of this genus. A discussion on conflicts in the classification of fionid aeolid nudibranchs addresses concerns with extreme splitting based on novel innovations that emphasize evolutionary novelty over phyletic kinship. Instead, a more conservative approach is suggested, especially within the context of taxa that still have much undocumented primary diversity.

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Parasites or predators? Gastropod ectoparasites and their scleractinian host corals at Koh Tao, Gulf of Thailand, with the description of a new species

Cited by 3 publications

References 84 publications

Parasitism in coral reefs: Trophic ecology of crustacean ascothoracidan parasites and their coral hosts from Malaysia

Parasitism in coral reefs: Trophic ecology of crustacean ascothoracidan parasites and their coral hosts from Malaysia

Trophic Structure and Isotopic Niche of Invaded Benthic Communities on Tropical Rocky Shores

Stirring up the muck: the systematics of soft-sediment Fionidae (Nudibranchia: Aeolidina) from the tropical Indo-Pacific

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