Diversity and composition of the copepod communities associated with megafauna around a cold seep in the Gulf of Mexico with remarks on species biogeography

Plum, Christoph; Gollner, Sabine; Martinez-Arbizu, Pedro; Bright, Monika

doi:10.1007/s12526-014-0310-8

Cited by 18 publications

(12 citation statements)

References 48 publications

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“…A group of calanoid copepods belonging to the family Spinocalanidae is found in swarms over hydrocarbon seeps of hydrothermal vents and cold seeps (Ivanenko et al 2007a). Fifty-five copepod species associated with tubeworm and mussel aggregations around a hydrocarbon seep in the Green Canyon of the Gulf of Mexico were identified, most of which were new to science (Plum et al 2015). At cold seeps, foundation species (such as tubeworms and mussels) may shape the community abundance and composition of associated copepods (Bright et al 2010;Plum et al 2015).…”

Section: Meiofauna From Cold Seepsmentioning

confidence: 99%

“…Only a few nematode species, typical of hypoxic/anoxic sediments, were more abundant under this carcass (Fonseca et al 2011). Among copepods associated with sunken wood, Xylora bathyalis is also found living in hydrothermal vents and cold seeps (Hicks 1988;Cuvelier et al 2014;Plum et al 2015). Copepods living on carcasses are poorly studied.…”

Section: Meiofauna From Carcasses and Sunken Woodsmentioning

confidence: 99%

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Characteristics of meiofauna in extreme marine ecosystems: a review

et al. 2017

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Extreme marine environments cover more than 50% of the Earth's surface and offer many opportunities for investigating the biological responses and adaptations of organisms to stressful life conditions. Extreme marine environments are sometimes associated with ephemeral and unstable ecosystems, but can host abundant, often endemic and welladapted meiofaunal species. In this review, we present an integrated view of the biodiversity, ecology and physiological responses of marine meiofauna inhabiting several extreme marine environments (mangroves, submarine caves, Polar ecosystems, hypersaline areas, hypoxic/anoxic environments, hydrothermal vents, cold seeps, carcasses/sunken woods, deep-sea canyons, deep hypersaline anoxic basins [DHABs] and hadal zones). Foraminiferans, nematodes and copepods are abundant in almost all of these habitats and are dominant in deep-sea ecosystems. The presence and dominance of some other taxa that are normally less common may be typical of certain extreme conditions. Kinorhynchs are particularly well adapted to cold seeps and other environments that experience drastic changes in salinity, rotifers are well represented in polar ecosystems and loriciferans seem to be the only metazoan able to survive multiple stressors in DHABs. As well as natural processes, human activities may generate stressful conditions, including deoxygenation, acidification and rises in temperature. The behaviour and physiology of different meiofaunal taxa, such as some foraminiferans, nematode and copepod species, can provide vital information on how organisms may respond to these challenges and can provide a warning signal of anthropogenic impacts. From an evolutionary perspective, the discovery of new meiofauna taxa from extreme environments very often sheds light on phylogenetic relationships, while understanding how meiofaunal organisms are able to survive or even flourish in these conditions can explain evolutionary pathways. Finally, there are multiple potential economic benefits to be gained from ecological, biological, physiological and evolutionary studies of meiofauna in extreme environments. Despite all the advantages offered by meiofauna studies from extreme environments, there is still an urgent need to foster meiofauna research in terms of composition, ecology, biology and physiology focusing on extreme environments.

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Section: Meiofauna From Cold Seepsmentioning

confidence: 99%

Section: Meiofauna From Carcasses and Sunken Woodsmentioning

confidence: 99%

Characteristics of meiofauna in extreme marine ecosystems: a review

et al. 2017

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“…Nonetheless, assessing species compositions for certain areas in ecological studies (e.g., Gollner et al, 2010;George et al, 2014;Plum et al, 2015;Schmidt and Martínez Arbizu, 2015) is very important and identifications are still mostly carried out by morphology only. Most studies do not focus only on single sampling sites but on various sites with several sample replicates.…”

Section: Introductionmentioning

confidence: 99%

Effects of Sample Fixation on Specimen Identification in Biodiversity Assemblies Based on Proteomic Data (MALDI-TOF)

Rossel

Arbizu

2018

Front. Mar. Sci.

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Recently, MALDI-TOF mass spectrometry has been used to reliably identify taxonomically difficult harpacticoid copepods from sediment samples. In agreement with former studies, a negative impact of short storage periods was stated. Other studies reported inferior mass spectra quality from samples fixated in varying ethanol concentrations. Therefore, sediment samples from a mudflat sampling site in the North Sea were stored under different temperature conditions to explore possible storage effects. Samples were fixated with either 70 or 100% ethanol and specimens were measured using MALDI-TOF mass spectrometry after 1, 2, 3, 5, 7, and 12 weeks. The changes in number of peaks per species and the ability to identify specimens based on mass spectra were analyzed quality measurements. We show that storage temperature had a major impact on data quality, as for some species a loss of up to 50% of mass peaks and an increase of failed measurements to over 70% was observed. However, the effect of different ethanol concentrations on data quality was negligible. Concluding from these results, storage of metazoan samples in general and, particularly, of sediment samples at low temperatures of around −25 • C is recommended to receive high-quality mass spectra for specimen identification.

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“…This morphological character is often observed in epibenthic or shallow-water epiphytic species associated with hard substrata (Boxshall and Halsey 2004). In addition, species with this character have already been reported from different reduced deep-sea ecosystems in association with organic substrata and large engineer species (Hicks 1988, Gollner et al 2006, Ivanenko et al 2012, Sarrazin et al 2015, Plum et al 2015.…”

Section: Overall Compositionmentioning

confidence: 87%

“…Currently, there are more than 80 species described from hydrothermal vents, belonging to five different orders, namely the Calanoida, Cyclopoida, Harpacticoida, Poecilostomatoida and Siphonostomatoida, of which the latter contains more than 50 species (Heptner and Ivanenko 2002, Ivanenko and Defaye 2004, Ivanenko et al 2011. Previous findings of non-endemic copepod species in association with engineer species at different reduced ecosystems pose questions about the mechanisms for the colonization of hydrothermal vents and their connectivity on larger scales (Heptner and Ivanenko 2002, Ivanenko et al 2012, Sarrazin et al 2015, Plum et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Copepod colonization of organic and inorganic substrata at a deep-sea hydrothermal vent site on the Mid-Atlantic Ridge

Plum

Pradillon

Fujiwara

et al. 2017

Deep Sea Research Part II: Topical Studies in Oceanography

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Cite this article as: Christoph Plum, Florence Pradillon, Yoshihiro Fujiwara and Jozée Sarrazin, Copepod colonization of organic and inorganic substrata at a deep-sea hydrothermal vent site on the Mid-Atlantic Ridge, Deep-Sea Research Part II, http://dx. AbstractThe few existing studies on deep-sea hydrothermal vent copepods indicate low connectivity with surrounding environments and reveal high endemism among vents. However, the finding of non-endemic copepod species in association with engineer species at different reduced ecosystems poses questions about the dispersal of copepods and the colonization of hydrothermal vents as well as their ecological connectivity.The objective of this study is to understand copepod colonization patterns at a hydrothermal vent site in response to environmental factors such as temperature and fluid flow as well as the presence of different types of substrata. To address this objective, an in situ experiment was deployed using both organic (woods, pig bones) and inorganic (slates) substrata along a gradient of hydrothermal activity at the Lucky Strike vent field (Eiffel Tower, Mid-Atlantic Ridge). The substrata were deployed in 2011 during the MoMARSAT cruise and were recovered after two years in 2013.Overall, copepod density showed significant differences between substrata types, but was similar among different hydrothermal activity regimes. Highest densities were observed on woods at sites with moderate or low fluid input, whereas bones were the most densely 2 colonized substrata at the 2 sites with higher hydrothermal influence. Although differences in copepod diversity were not significant, the observed trends revealed overall increasing diversity with decreasing temperature and fluid input. Slates showed highest diversity compared to the organic substrata. Temperature and fluid input had a significant influence on copepod community composition, resulting in higher similarity among stations with relatively high and low fluid inputs, respectively. While vent-specialists such as dirivultids and the tegastid Smacigastes micheli dominated substrata at high vent activity, the experiment demonstrated increasing abundance and dominance of non-vent taxa with decreasing temperature and fluid input. Effects of the substratum type on community composition were not significant, although at sites with moderate or low fluid input, woods exhibited distinctive communities with high densities and relative abundance of the taxon Nitocrella sp.. In conclusion, copepod colonization and species composition were mainly influenced by hydrothermal fluid input and temperature rather than the type of substratum. The outcome of this study provides fundamental knowledge to better understand copepod colonization at hydrothermal vents.

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Diversity and composition of the copepod communities associated with megafauna around a cold seep in the Gulf of Mexico with remarks on species biogeography

Cited by 18 publications

References 48 publications

Characteristics of meiofauna in extreme marine ecosystems: a review

Characteristics of meiofauna in extreme marine ecosystems: a review

Effects of Sample Fixation on Specimen Identification in Biodiversity Assemblies Based on Proteomic Data (MALDI-TOF)

Copepod colonization of organic and inorganic substrata at a deep-sea hydrothermal vent site on the Mid-Atlantic Ridge

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