Predation by the nudibranch Tritonia odhneri (Opisthobranchia: Tritoniidae) on octocorals from the South Atlantic Ocean

García-Matucheski, Stella; Muniain, Claudia

doi:10.1007/s12526-010-0063-y

Cited by 19 publications

(7 citation statements)

References 22 publications

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“…Members of the family Tritoniidae feed almost exclusively on octocorals, including sea pens, alcyonarian soft corals, and gorgonians, sometimes being cryptic in shape and colouration upon them (García-Matucheski and Muniain 2011). In the SO, Tritonia species feed mostly on alcyonarian soft corals (Schrödl 2003;Wägele 1995;García-Matucheski and Muniain 2011). Here, we found soft-coral sclerites in the gut contents of both T. challengeriana and T. dantarti.…”

Section: The Colouration Issuementioning

confidence: 56%

Orange is the new white: taxonomic revision of Antarctic Tritonia species (Gastropoda: Nudibranchia)

Rossi

Ávila

Moles

2020

Preprint

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Among nudibranch molluscs, the family Tritoniidae gathers taxa with unclear phylogenetic position, such as some species of the genus Tritonia Cuvier, 1798. Currently, 35 valid species belong to this genus and only three of them are found in the Southern Ocean, namely T. challengeriana Bergh, 1884, T. dantarti Ballesteros & Avila, 2006, and T. vorax (Odhner, 1926). In this study, we shed light on the long-term discussed systematics and taxonomy of Antarctic Tritonia species using morpho-anatomical and molecular techniques. Samples from the Weddell Sea and Bouvet Island were dissected and prepared for scanning electron microscopy. The three molecular markers COI, 16S, and H3 were sequenced and analysed through maximum likelihood and Bayesian methods. The phylogenetic analyses and species delimitation tests clearly distinguished two species, T. challengeriana and T. dantarti, being widely-spread in the Southern Ocean, and endemic to Bouvet Island, respectively. Coloration seemed to be an unreliable character to differentiate among species since molecular data revealed both species can either have orange or white colour-morphotypes. This variability could be explained by pigment sequestration from the soft coral species they feed on. Morphological analyses reveal differences between Antarctic and Magellanic specimens of T. challengeriana, thus, we suggest the resurrection of T. antarctica Martens & Pfeffer, 1886 to encompass exclusively the Antarctic species. To progress further, additional molecular data from Magellanic specimens are required to definitely resolve their taxonomy and systematics. Key words: Phylogenetic analyses, Southern Ocean, species delimitation tests, Tritoniidae taxonomy.

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Section: The Colouration Issuementioning

confidence: 56%

Orange is the new white: taxonomic revision of Antarctic Tritonia species (Gastropoda: Nudibranchia)

Rossi

Ávila

Moles

2020

Preprint

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“…A tritoniid species (Mollusca: Nudibranchia) and the gastropod Simnia spelta consistently associated with both E. gazella and Leptogorgia lusitanica, and seem to have a close dependence with these particular habitats. The association of these taxa has been previously reported, as they are well-known octocoral predators (Oliverio et al, 2009;García-Matucheski and Muniain, 2011). Therefore, this relationship may be disrupted if the gorgonian gardens' degrade, with consequences for the populations of both predator species.…”

Section: Discussionmentioning

confidence: 80%

Temporal variability in epifaunal assemblages associated with temperate gorgonian gardens

Dias

Cúrdia

Cunha

et al. 2015

Marine Environmental Research

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPTThe present study is one of the few that investigate the temporal variability of 2 epifaunal assemblages associated with coral species, particularly the octocorals 3 Eunicella gazella and Leptogorgia lusitanica in south Portugal. The results suggest 4 time rather than colony size as a primary driver of the ecological patterns of these 5 assemblages, which were dominated by amphipods, molluscs and polychaetes. 6Temporal variability was linked to changes in environmental parameters, namely 7 temperature, chlorophyll a and particulate organic carbon. Hence, temporal variability 8 must be taken into account for the design of future biodiversity assessment studies, as 9 different patterns may be observed depending on the sampling time. Associated 10 epifaunal assemblages were consistently dominated by resident species (i.e. species 11 present in all sampling periods) and a peak of rare species was observed in the 12 transition from spring to summer following the increase of seawater temperature. 13Turnover was particularly high in the transition between the spring and summer 14 periods. In both hosts, turnover was higher in the small sized colonies, which 15 generally harboured less diverse and less abundant assemblages which also differed 16 from those inhabiting larger size colonies. The high levels of diversity associated with 17 gorgonian colonies highlights the need for the conservation of this priority habitat. 18

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“…In line with Table 1 Taxa ranked according to frequency of their representation in articles dealing with corals or reefs in the journal Marine Biodiversity and its predecessor Senckenbergiana maritima (1969-present) Cnidaria, Coelentera (28): Grasshoff (1979Grasshoff ( , 1985Grasshoff ( , 1989, Grasshoff and Zibrowius (1983), Türkay and Schuhmacher (1985), Kleemann (1986Kleemann ( , 1990, Lawniczak (1987), Dullo and Hecht (1990), Heiss et al (1993), Fabricius (1996), Heiss et al (1999), Camillo et al (2011), García-Matucheski and Muniain (2011, Aharonovich and Benayahu (2012), Carranza et al (2012), Grossowicz and Benayahu (2012), Hoeksema (2012), Hoeksema and Waheed (2012), van der Meij and Reijnen (2012), Davies et al (2013), Kamezaki et al (2013), , Santodomingo et al (2013), van der Meij and Hoeksema (2013), Waheed and Hoeksema (2013), Yeemin et al (2013) Mollusca (7): Kleemann (1986Kleemann ( , 1990, García-Matucheski and Muniain (2011), Harrison and Smith (2012), Hui et al (2012), van der Meij and Reijnen (2012), Chavanich et al (2013) Crustacea (6): Türkay and Schuhmacher (1985), Senn and Glasstetter (1989), Burukovsky (2000), White (2012White ( , 2013, van der Meij and Hoeksema (2013) Chordata, Vertebrata, Pisces (4): Fishelson (1989)…”

Section: The Conference Papersmentioning

confidence: 99%

Editorial: corals, reefs and marine biodiversity

Hoeksema

Meij

2013

Mar Biodiv

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Predation by the nudibranch Tritonia odhneri (Opisthobranchia: Tritoniidae) on octocorals from the South Atlantic Ocean

Cited by 19 publications

References 22 publications

Orange is the new white: taxonomic revision of Antarctic Tritonia species (Gastropoda: Nudibranchia)

Orange is the new white: taxonomic revision of Antarctic Tritonia species (Gastropoda: Nudibranchia)

Temporal variability in epifaunal assemblages associated with temperate gorgonian gardens

Editorial: corals, reefs and marine biodiversity

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