Spatial patterns and structural composition of foraminiferal assemblages from the Zanzibar Archipelago (Tanzania)

Thissen, Jens M.; Langer, Martin R.

doi:10.1127/pala/308/2017/1

Cited by 24 publications

(21 citation statements)

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“…Bolivina The holotype of Brizalina simpsoni has been described by Heron-Allen & Earland (1915) from the Quirimba Islands off northeastern Mozambique. The species has also been reported from the Red Sea (Hottinger et al, 1993;Haunold et al, 1997) and Zanzibar (Thissen & Langer, 2017). The first Mediterranean record was given by Meriç et al (2010) from the Pamuçak Cove (northwest Kuşadasi, Turkey).…”

Section: Brizalina Simpsonimentioning

confidence: 77%

“…1-2) show a distinct reticulate surface pattern as a characteristic feature of this taxon. The species has been reported from Zanzibar (Thissen & Langer, 2017) and the Red Sea by Hottinger et al (1993). Mediterranean records include Hyams (2000), Avsar et al, 2001 (not illustrated), Meriç et al (2008a;2008b), Yokeş & Meriç (2009) and Meriç et al (2014).…”

Section: Pseudolachlanella Slitellamentioning

confidence: 82%

“…1-8 1998 Pseudohauerinella dissidens ( The type locality of Pseudohauerinella dissidens is Sulphur Bay, Clarion Island (eastern Pacific, 31m depth;McCulloch, 1977). Pseudohauerinella dissidens has been recorded from the Red Sea by Hottinger et al (1993) and Piller & Haunold (1998) and from Zanzibar by Thissen & Langer (2017). The first Mediterranean record was provided by Hyams (2000) from the coast off Israel.…”

Section: Pseudohauerinella Dissidensmentioning

confidence: 96%

“…4,[30][31][32] Siphonaperta distorqueata has been described from the Marshall Islands by Cushman et al (1954). The species has been recorded from the Red Sea by Hottinger et al (1993), from around Australia by Parker (2009, and references therein), from the Chuuk Atoll (western Pacific) by Makled & Langer (2011), from the Atlantic Ocean (Fajemila & Langer, 2017) and from Zanzibar by Thissen & Langer (2017). Mediterranean records include specimens from Turkey (Alavi, 1980, as Quinqueloculina berthelotiana) and from shallow waters off Israel (Hyams, 2000;Hyams-Kaphzan et al, 2008;.…”

Section: Sigmoihauerina Bradyimentioning

confidence: 99%

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Alien and cryptogenic Foraminifera in the Mediterranean Sea: A revision of taxa as part of the EU 2020 Marine Strategy Framework Directive

2020

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The human-mediated translocation of marine alien species beyond their natural ranges started as early as people began navigating the sea and is of growing concern to nature conservation. The Mediterranean Sea is among the most severely affected areas by biological invasions, a phenomenon that has been fostered by the opening and recent extension of the Suez Canal, the transport and release of ballast water, aquaculture and aquarium trade, ichthyochory and other active or passive dispersal mechanisms. The increase of marine invasions has stimulated considerable research, but for some important groups, in particular microorganisms, data are still limited. In this paper we have reviewed the current status of marine alien foraminifera in the Mediterranean Sea. Our survey includes a comrephensive taxonomic revision of previously recognized alien taxa, and new information obtained from the fossil record and from molecular studies. Our survey and reexamination of alien benthic foraminifera yielded a total of 43 validly recognized species and two species of cryptogenic taxa and reduces the number of previous recordings. The revised list includes both larger symbiont-bearing and smaller benthic foraminifera, including 16 hyaline-perforate, 3 agglutinated and 24 porcelaneous taxa. The vast majority of alien foraminifera recorded so far have become established in the Eastern and Central Mediterranean Sea, indicative for translocation and introduction via the Suez Canal pathway. Only one species, Amphistegina lobifera, causes significant ecological impacts and fulfills the criteria to be considered as an invasive alien. This species is a prolific carbonate producer, and displays extreme forms of ecosystem invasibility with capabilities to reduce native diversity and species richness. The proliferation and rates of recently observed range extensions, track contemporary sea surface temperature increases, provide strong support for previous species distribution models, and corroborate findings that rising water temperatures, global climate change and the extension of climate belts are major drivers fueling the latitudinal range expansion of larger symbiont-bearing and smaller epiphytic foraminifera. Intensified efforts to study alien foraminifera on a molecular level, in dated cores and in ballast water are required to trace their source of origin, to identify vectors of introduction and to verify their status as true aliens.

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Section: Brizalina Simpsonimentioning

confidence: 77%

Section: Pseudolachlanella Slitellamentioning

confidence: 82%

Section: Pseudohauerinella Dissidensmentioning

confidence: 96%

Section: Sigmoihauerina Bradyimentioning

confidence: 99%

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Alien and cryptogenic Foraminifera in the Mediterranean Sea: A revision of taxa as part of the EU 2020 Marine Strategy Framework Directive

2020

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“…(); 42, Rao (); 43, Pilarczyk et al . (); 44, Clarke & Keij (); 45, Parker & Gischler (); 46, Al‐Wosabi, Mohammed, & Al‐Kadasi (); 47, Hottinger (); 48, Karisiddaiah, Veerayya, & Guptha (); 49, Thissen & Langer (); 50, Zinke et al . (); 51, Langer et al .…”

Section: Diversity and Ecological Importance Of Algal Symbiontsmentioning

confidence: 99%

Evolutionary significance of the microbial assemblages of large benthic Foraminifera

Prazeres

Renema

2018

Biological Reviews

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Large benthic Foraminifera (LBF) are major carbonate producers on coral reefs, and are hosts to a diverse symbiotic microbial community. During warm episodes in the geological past, these reef-building organisms expanded their geographical ranges as subtropical and tropical belts moved into higher latitudes. During these range-expansion periods, LBF were the most prolific carbonate producers on reefs, dominating shallow carbonate platforms over reef-building corals. Even though the fossil and modern distributions of groups of species that harbour different types of symbionts are known, the nature, mechanisms, and factors that influence their occurrence remain elusive. Furthermore, the presence of a diverse and persistent bacterial community has only recently gained attention. We examined recent advances in molecular identification of prokaryotic (i.e. bacteria) and eukaryotic (i.e. microalgae) associates, and palaeoecology, and place the partnership with bacteria and algae in the context of climate change. In critically reviewing the available fossil and modern data on symbiosis, we reveal a crucial role of microalgae in the response of LBF to ocean warming, and their capacity to colonise a variety of habitats, across both latitudes and broad depth ranges. Symbiont identity is a key factor enabling LBF to expand their geographic ranges when the sea-surface temperature increases. Our analyses showed that over the past 66 million years (My), diatom-bearing species were dominant in reef environments. The modern record shows that these species display a stable, persistent eukaryotic assemblage across their geographic distribution range, and are less dependent on symbiotic photosynthesis for survival. By contrast, dinoflagellate and chlorophytic species, which show a provincial distribution, tend to have a more flexible eukaryotic community throughout their range. This group is more dependent on their symbionts, and flexibility in their symbiosis is likely to be the driving force behind their evolutionary history, as they form a monophyletic group originating from a rhodophyte-bearing ancestor. The study of bacterial assemblages, while still in its infancy, is a promising field of study. Bacterial communities are likely to be shaped by the local environment, although a core bacterial microbiome is found in species with global distributions. Cryptic speciation is also an important factor that must be taken into consideration. As global warming intensifies, genetic divergence in hosts in addition to the range of flexibility/specificity within host-symbiont associations will be important elements in the continued evolutionary success of LBF species in a wide range of environments. Based on fossil and modern data, we conclude that the microbiome, which includes both algal and bacterial partners, is a key factor influencing the evolution of LBF. As a result, the microbiome assists LBF in colonising a wide range of habitats, and allowed them to become the most important calcifiers on shallow platforms worldwide during perio...

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Palaeobiogeography and evolutionary patterns of the larger foraminiferBorelisde Montfort (Borelidae)

Bassi

Braga

Domenico

et al. 2019

Papers in Palaeontology

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The palaeobiogeography of the alveolinoid Borelis species reveals the evolutionary patterns leading to the two extant representatives, which occur in shallow‐water tropical carbonate, coral reef‐related settings. Type material and new material of fossil Borelis species, along with Recent specimens were studied to assess their taxonomic status, species circumscriptions (based on proloculus size, occurrence of Y‐shaped septula, and the index of elongation), palaeobiogeography and evolutionary dynamics. The species dealt with here are known from exclusively fossil (B. pygmaea, B. inflata, B. philippinensis, B. melo, B. curdica), and from fossil and modern (B. pulchra, B. schlumbergeri) specimens. For the first time, fossil and Recent Borelis specimens are illustrated via micro‐computed tomography scanning images. Depending on the occurrence of Y‐shaped septula, two lineages are distinguished. Deriving from the middle–upper Eocene Borelis vonderschmitti, the first lineage includes B. inflata, B. pulchra and B. pygmaea, lacking Y‐shaped septula. The first species bearing Y‐shaped septula is the Rupelian B. philippinensis of the western Indo‐Pacific. The westward migrants of B. philippinensis into the Mediterranean gave rise to B. melo (Aquitanian–Messinian) and B. curdica (Burdigalian–Tortonian). These two species became isolated from the Indo‐Pacific by the Langhian eastern closure of the Mediterranean basin and disappeared during the Messinian Salinity Crisis. Since the Tortonian, B. schlumbergeri, which descended from B. philippinensis, has inhabited the Indo‐Pacific along with B. pulchra. From the central Pacific Ocean, B. pulchra reached the Caribbean area before the early Piacenzian closure of the Central America seaway.

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Spatial patterns and structural composition of foraminiferal assemblages from the Zanzibar Archipelago (Tanzania)

Cited by 24 publications

References 0 publications

Alien and cryptogenic Foraminifera in the Mediterranean Sea: A revision of taxa as part of the EU 2020 Marine Strategy Framework Directive

Alien and cryptogenic Foraminifera in the Mediterranean Sea: A revision of taxa as part of the EU 2020 Marine Strategy Framework Directive

Evolutionary significance of the microbial assemblages of large benthic Foraminifera

Palaeobiogeography and evolutionary patterns of the larger foraminiferBorelisde Montfort (Borelidae)

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