Ostracoda (Arthropoda, Crustacea) in a Miocene oxygen minimum zone, Trinidad, West Indies: A test of the Platycopid Signal Hypothesis

Wilson, Brent; Coimbra, João Carlos; Hayek, Lee‐Ann C.

doi:10.1016/j.jsames.2014.06.003

Cited by 10 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many organisms with a calcified exoskeleton, except foraminiferans [67] and mussel Amygdalum sp., Ref. [68] avoid oxygenminimum waters, while nematodes [69][70][71][72]; polychaetes [68] and crustaceans, such as ostracods [73,74], copepods [52] and malacostracans [75,76], are adapted to live in the hypoxic conditions.…”

Section: Discussionmentioning

confidence: 99%

Unveiling the Faunal Diversity in the Water Column Adjacent to Two Seamounts in the Deep Arabian Sea Using Environmental DNA Metabarcoding

Kaliyath,

Abdulaziz,

Chekidhenkuzhiyil

et al. 2024

JMSE

View full text Add to dashboard Cite

The diversity of organisms inhabiting deep-sea ecosystems, such as seamounts, has hitherto remained under-studied. In this study, we report on the faunal diversity in the water column adjacent to the summit and periphery of two seamounts (SMS2 and SMS3) and an oxygen minimum zone site located away from the seamounts in the southeast Arabian Sea. Environmental DNA (eDNA) in the water column was metabarcoded using the Cytochrome Oxidase C subunit I (COI) gene marker and Oxford Nanopore sequencing technology. Hydrographic conditions revealed that the summits of the seamounts intersect with the core oxygen minimum zone between depths of 300 and 600 m. Comparisons of COI gene sequences with those in available databases, MIDORI and BOLD, indicated the existence of a diverse group of novel organisms in the study area. Crustaceans dominated (75–95%) in the summit and periphery of the SMS2 and the OMZ site, while Cnidaria (56–63%) and Chordata (55%), respectively, dominated the summit and periphery of SMS3. Overall, the current study highlights the broad diversity of organisms living in the water column around the seamounts and underscores the potential of eDNA for exploring them.

show abstract

Section: Discussionmentioning

confidence: 99%

Unveiling the Faunal Diversity in the Water Column Adjacent to Two Seamounts in the Deep Arabian Sea Using Environmental DNA Metabarcoding

Kaliyath,

Abdulaziz,

Chekidhenkuzhiyil

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

“…This method was used to infer oxygen levels in deep time (Whatley 1991;Boomer and Whatley 1992;Lethiers and Whatley 1994;Whatley 1995). However, the Platycopid Signal Hypothesis was not supported by a re-and new analysis because platycopids are not consistently dominant in oxygen minimum zones today (Brandão 2008;Brandão and Horne 2009) and Cytherella was found throughout a Miocene outcrop in Trinidad of varying inferred oxygen levels rather than in the oxygen minimum zone only (Wilson et al 2014). The fossil record of seep ostracods is not consistent either with the Platycopid Signal Hypothesis because percentages are low and vary from 0-18.8% (Table 1).…”

Section: Biologymentioning

confidence: 94%

Crustaceans in Cold Seep Ecosystems: Fossil Record, Geographic Distribution, Taxonomic Composition, and Biology

Klompmaker

Nyborg

Brezina

et al. 2022

Topics in Geobiology

View full text Add to dashboard Cite

This preprint has been submitted for publication in the Topics in Geobiology volume "Ancient Methane Seeps and Cognate Communities". Specimen figures are excluded in this preprint because permissions were only received for the peer-reviewed publication. Introduction Crustaceans are abundant inhabitants of today's cold seep environments (Chevaldonné and Olu 1996; Martin and Haney 2005; Karanovic and Brandão 2015), and could play an important role in structuring seep ecosystems. Cold seeps fluids provide an additional source of energy for various sulfide-and hydrocarbon-harvesting bacteria, often in symbiosis with invertebrates, attracting a variety of other organisms including crustaceans (e.g.

show abstract

“…From Central Chile, 46 outcrop samples of the Miocene Navidad Formation and El Peral Beds were examined. Previous registers (both fossil and recent) were compiled from the following bibliography: Benson (1972), Puri & Hulings (1976), Valicenti (1977, Whatley et al (1996Whatley et al ( , 1998, Coimbra et al (1999), Finger et al (2007), Wilson (2007, Meireles & Do Carmo (2011), Wilson et al (2014, Marengo (2015), and Bernasconi & Cusminsky (2020).…”

Section: Introductionmentioning

confidence: 99%

The genus Bradleya Hornibrook, 1952 (Crustacea: Ostracoda) in South America and adjacent oceanic areas, with description of a new bradleyine genus

BERGUE,

COIMBRA

2023

An. Acad. Bras. Ciênc.

View full text Add to dashboard Cite

The ostracod genus Bradleya Hornibrook is an important taxon of Cenozoic assemblages, occurring practically in all oceanic regions. The wide distribution both in shallow and deep waters turns Bradleya interesting for studies involving phylogeny and paleoceanography. The present work aims at the study of fossil and recent species in South America and adjacent regions, based on bibliographic review and the restudy of samples from the Brazilian continental margin, the Navidad Formation (lower Miocene) and El Peral Beds (meso-upper Miocene), both cropping out in the Central Chile. The chronostratigraphic, (paleo)bathymetric and (paleo)zoogeographic distribution of the species is reviewed and updated. The bridge composition was studied in all species recorded and revealed to be important taxonomic character. The taxa identified were gathered into three morphological groups: two proposed previously (i.e., the dictyongroup and the arata-group) and a new one in the present work (i.e., the normani-group).The dictyon-group and the arata-group gather deep-sea species, while the normanigroup is predominantly neritic, including most of the species of Brazilian margin. Bradleya victorjaraisp. nov. is proposed for the Miocene of Chile, and Bradleya ybate (Bergue et al.) is reassigned to Rigracythere gen. nov. Questionable or misidentified species ascribed to Bradleya are briefly discussed.

show abstract

Ostracoda (Arthropoda, Crustacea) in a Miocene oxygen minimum zone, Trinidad, West Indies: A test of the Platycopid Signal Hypothesis

Cited by 10 publications

References 25 publications

Unveiling the Faunal Diversity in the Water Column Adjacent to Two Seamounts in the Deep Arabian Sea Using Environmental DNA Metabarcoding

Unveiling the Faunal Diversity in the Water Column Adjacent to Two Seamounts in the Deep Arabian Sea Using Environmental DNA Metabarcoding

Crustaceans in Cold Seep Ecosystems: Fossil Record, Geographic Distribution, Taxonomic Composition, and Biology

The genus Bradleya Hornibrook, 1952 (Crustacea: Ostracoda) in South America and adjacent oceanic areas, with description of a new bradleyine genus

Contact Info

Product

Resources

About