Environmental controls on benthic foraminiferal and thecamoebian associations in a New Zealand tidal inlet

Abstract

Other| April 01, 1996 Environmental controls on benthic foraminiferal and thecamoebian associations in a New Zealand tidal inlet B. W. Hayward; B. W. Hayward Auckland Institute and Museum, Auckland, New Zealand Search for other works by this author on: GSW Google Scholar H. Grenfell; H. Grenfell Search for other works by this author on: GSW Google Scholar G. Cairns; G. Cairns Search for other works by this author on: GSW Google Scholar A. Smith A. Smith Search for other works by this author on: GSW Google Scholar Author and Article Information B. W. Hayward Auckland Institute and Museum, Auckland, New Zealand H. Grenfell G. Cairns A. Smith Publisher: Cushman Foundation for Foraminiferal Research First Online: 03 Mar 2017 Online ISSN: 1943-264X Print ISSN: 0096-1191 GeoRef, Copyright 2004, American Geological Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences (SIRIS), Lower Hutt, New Zealand Journal of Foraminiferal Research (1996) 26 (2): 150–171. https://doi.org/10.2113/gsjfr.26.2.150 Article history First Online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation B. W. Hayward, H. Grenfell, G. Cairns, A. Smith; Environmental controls on benthic foraminiferal and thecamoebian associations in a New Zealand tidal inlet. Journal of Foraminiferal Research 1996;; 26 (2): 150–171. doi: https://doi.org/10.2113/gsjfr.26.2.150 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyJournal of Foraminiferal Research Search Advanced Search Abstract Census data on benthic foraminiferal and thecamoebian tests in 52 surface sediment samples from Purakanui Inlet, Otago, New Zealand, are analyzed by cluster and correspondence analyses. Faunas are grouped into 10 sample associations with the following characterizing species: A) Trochammina inflata - at or above mean high water level in high salt meadow, salt marsh or grass; B) Jadammina macrescens/Trochammina inflata - at or above mean high-water level on the edge of high salt meadow; C) Trochamminita salsa in sandy soil at around mean high-water spring, possibly influenced by fresh groundwater seepage; D) Pontigulasia compressa/Trochamminita salsa/Difflugia capreolata - at high tide level in the bed of the main freshwater stream flowing into the inlet; E) Haplophragmoides wilberti - in salt marsh and grass at mean high-water level on the edge of the inlet; F) Miliammina fusca - in Sarcocornia muddy low salt meadow and sandy mud flats between mid and high tide levels; G) Elphidium excavatum - over a wide area of tidal sand flats in the upper and middle parts of the inlet; H) Ammonia beccarii/Elphidium excavatum - in three areas of tidal sand flat in association with G, but with slightly lower salinity and nutrients; I) Elphidium excavatum/Haynesina depressula - intertidally and subtidally around the inner end of the entrance channel in the vicinity of the flood tide sand delta; J) Zeaflorilus parri - intertidally and subtidally in the shallow, current swept entrance to the inlet. These correlate closely with the 8 species associations produced by cluster analysis. Canonical correspondence analysis indicates that the following factors in decreasing order of importance are most influential in determining the faunal distribution: tidal exposure, salinity, percentage of mud, proximity of the open sea, organic carbon, phosphate and intertidal vegetation type. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.