Recent Marsh Foraminifera from the East Coast of South America: Comparison to the Northern Hemisphere

Scott, David B.; Schnack, Enrique J.; Ferrero, Laura; Espinosa, Marcela A.; Barbosa, Cátia F

doi:10.1007/978-94-011-3350-0_25

Cited by 53 publications

(37 citation statements)

References 11 publications

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“…This association occurs in similar brackish, high-tidal environments throughout New Zealand (Hayward & Hollis 1994), and on both coasts of the Americas (Scott et al 1990;Jennings & Nelson 1992;Scott et al 1996). Stations : 11,21,23,24,25,26,27,29,45,54, 56 = 11 Dominant species associations : 3, 4 Secondary species associations : 1, 2 Depth : mid tide to 2 m Sediment: muddy, gravelly fine sand to fine sandy mud Environment: intertidal channels in mangrove swamp, tidal mud flats, and subtidal channels Localities : Rangitopuni Estuary, upper Waitemata Harbour, and Pollen Island Diversity : a = 1-7; H = 1.4-2.4; E = 0.68-0.84 This association occurs in muddy fine sand and sandy mud in slightly brackish conditions throughout a large part (subtidal channels up to MHW) of the lower Rangitopuni Estuary and also in mid-tidal channels through the mangroves on Pollen Island (Fig.…”

Section: Association H: Haplophragmoides Wilbertimentioning

confidence: 89%

Foraminiferal associations in the upper Waitemata Harbour, Auckland, New Zealand

Hayward¹,

Grenfell²,

Pullin³

et al. 1997

Journal of the Royal Society of New Zealand

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Census data on 68 benthic foraminiferal tests in 56 seafloor sediment samples from the upper Waitemata Harbour, Auckland, New Zealand (36° 50 S, 174° 40 E) are analysed by Cluster Analysis. The faunal samples, taken from extreme high tide to 8 m depth, and from strongly brackish to normal marine salinities, are grouped into 7 associations. Characterising species of each association are found by calculating Association Scores for each species, based on its mean abundance, relative abundance, fidelity, persistence, and dominance within each association.The foraminiferal associations are: JE, Jadammina macrescens-Elphidium excavatum f. clavata -high tidal, sandy mud, in salt meadow and dwarf mangrove swamp, with near normal marine salinity; Tn, Trochammina inflata -around mean high water springs in salt marsh and salt meadow, with variable salinity; M, Miliammina fuscasubtidal channels and intertidal mud banks, mangrove swamp, and salt marsh with reduced salinity; H, Haplophragmoides wilberti -above mean high water, in salt meadow and salt marsh, with slightly reduced salinity; Tr, Trochamminita salsaintertidal sandy mud banks at head of estuary, with lowest salinity; AM, Ammonia beccarii-Miliammina fusca -intertidal and shallow subtidal mud fiats and channels, with near normal marine to slightly reduced salinity; A, Ammonia beccarii -intertidal and subtidal (to 8 m+ depth) muddy sand, with near normal marine to slightly reduced salinity.In the cluster analysis dendrogram of samples, the first-order division produces a three-way split of: (1) near-normal marine salinity agglutinated associations (JE,Tn); (2) low-salinity, agglutinated associations (M,H,Tr); and (3) near-normal marine salinity, calcareous associations (AM,A). The dominant foraminiferal species are grouped by cluster analysis into five species associations; these correlate closely with the sample associations. There is an overall trend of increasing species diversity from brackish to saline and from intertidal to subtidal. This study supports earlier conclusions that salinity and tidal exposure are the two most influential factors in determining foraminiferal distribution patterns in sheltered tidal harbours and estuaries.A common species in the near-normal salinity subtidal channels, Siphogenerina striata, may have been introduced into the harbour with foreign shipping.Keywords: Foraminifera; benthic foraminiferal associations; ecological distribution; Waitemata Harbour; Rangitopuni Estuary; Pollen Island; Auckland; New Zealand; Cluster Analysis; species diversity INTRODUCTIONKnowledge of the ecological distribution of shallow-water benthic foraminifera (Protista, Protozoa) has application in studies of both modern and fossil environments.This study is the fifth part of a six-part programme aimed at documenting the ecological distribution patterns of modern shallow-water (brackish and inner shelf) foraminifera around New Zealand. The programme consists of six quantitative studies -two in each of the * Auckland Institute and Museum, Private Bag 92 01...

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Section: Association H: Haplophragmoides Wilbertimentioning

confidence: 89%

Foraminiferal associations in the upper Waitemata Harbour, Auckland, New Zealand

Hayward¹,

Grenfell²,

Pullin³

et al. 1997

Journal of the Royal Society of New Zealand

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“…Additionally, B. pseudomacrescens has recently been found living associated with damp, rotting leaf litter close to the upper tidal limit in the River Cur, near Southampton, U.K (Murray and Alve, unpublished data). In the work of Scott et al (1990) , 1997). Balticammina pseudomacrescens should be a more low salinity species than J. macrescens (De Rijk, 1995;De Rijk and Troelstra, 1997).…”

Section: Marsh Assemblagesmentioning

confidence: 99%

“…The relative importance of salinity versus elevation above mean sea level for the distribution of marsh species is a matter of current debate (e.g., Scott and Medioli, 1980;Scott et al, 1990;De Rijk, 1995;De Rijk and Troelstra, 1997). In the SkagerrakKattegat area, the tides are too small to allow investigations about the importance of elevation.…”

Section: Marsh Assemblagesmentioning

confidence: 99%

Marginal marine environments of the Skagerrak and Kattegat: a baseline study of living (stained) benthic foraminiferal ecology

Alve

Murray

1999

Palaeogeography, Palaeoclimatology, Palaeoecology

171

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“…In summer it is worth noting the ephemeral occurrence of P. ipohalina at SCM, where it is subdominant to J. macrescens (20.8 and 75%, respectively). Polysaccammina ipohalina is a high marsh species (or upper mangrove, Barbosa et al, 2005), usually representing a minor component in estuarine systems (Scott, 1976b;Scott et al, 1990). It was firstly described by Scott (1976b) in San Dieguito Marsh, California, associated with a few other species, especially J. macrescens polystoma and T. inflata.…”

Section: Middle Estuarymentioning

confidence: 99%

“…In the living assemblage, its occurrence seems limited to the lower marsh zone, at the sheltered marine lagoon in the inlet (LG). Discorinopsis aguayoi is regarded as an indicator of landlocked marine/brackish ponds, mangrove marshes (Javaux and Scott, 2003) and high marsh in warm temperate environments (Scott, 1976a;Scott et al, 1990). Despite being very well documented by the latter authors, D. aguayoi was never mentioned as an epiphytic species.…”

Section: Middle Estuarymentioning

confidence: 99%

Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal)

Camacho

Moura

Connor

et al. 2015

Palaeontologia Electronica

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Recent Marsh Foraminifera from the East Coast of South America: Comparison to the Northern Hemisphere

Cited by 53 publications

References 11 publications

Foraminiferal associations in the upper Waitemata Harbour, Auckland, New Zealand

Foraminiferal associations in the upper Waitemata Harbour, Auckland, New Zealand

Marginal marine environments of the Skagerrak and Kattegat: a baseline study of living (stained) benthic foraminiferal ecology

Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal)

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