Christian Haller- Doctor of Philosophy
- University of South Florida
Christian Haller
- Doctor of Philosophy
- University of South Florida
About
30
Publications
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Introduction
Christian holds a PhD in Marine Science, an MSc in Geoscience, and has a strong computer programming and data analytics background. He has a proficiency in one of the hottest subjects of our time: Data Science, and developing Machine Learning models.
Current institution
Publications
Publications (30)
This study documented surface distributions of live and dead foraminiferal assemblages in the low-gradient tidal marshes of the barrier island and estuarine complex of the eastern Mississippi Sound (Grand Bay, Pascagoula River, Fowl River, Dauphin Island). A total of 71,833 specimens representing 38 species were identified from a gradient of differ...
The carbonate sediments of the Western Australian shelf in the Indian Ocean host diverse assemblages of benthic foraminifera. These shelf environments are dominated by the southward-flowing Leeuwin Current, which impacts near-surface circulation and influences biogeographic ranges of Indo-Pacific warm-water foraminifera. Analyses of outer-ramp to u...
The unique macroevolutionary dataset of Aze & others has been transferred onto the TimeScale Creator visualisation platform while, as much as practicable, preserving the original unrevised content of its morphospecies and lineage evolutionary trees. This is a “Corrected Version” (not a revision), which can serve as an on-going historical case examp...
The 3000 km-long Western Australian Shelf hosts prolific Mesozoic hydrocarbon extraction provinces, which have been biostratigraphically researched for various projects offshore Barrow Island. However, little is known about the overlying late Neogene and Holocene benthic foraminifera, and how the faunal evolution is tied to the flow of the warm and...
Benthic foraminiferal assemblages from a ~300 m deep core from an outer carbonate-ramp site off Western Australia (International Ocean Discovery Program Core U1460A) were examined to reconstruct the paleoceanographic evolution of the Carnarvon Ramp and the warm surficial Leeuwin Current (LC) for the last 3.54 Ma. Of the identified 179 benthic foram...
Microfossil (benthic foraminifera) data from coastal areas were collected from state and federally managed lands within the Grand Bay National Estuarine Research Reserve and Grand Bay National Wildlife Refuge, Grand Bay, Mississippi/Alabama; federally managed lands of Bon Secour National Wildlife Refuge on Cedar Island and Little Dauphin Island, Al...
Microfossil (benthic foraminifera) and coordinate/elevation data were obtained from sediments collected in the coastal zones of Mississippi and Alabama, including marsh and estuarine environments of eastern Mississippi Sound and Mobile Bay, in order to develop a census for coastal environments and to aid in paleoenvironmental reconstruction. These...
The Waccasassa River is located in a small watershed situated along the middle section of the low-gradient, low-energy, sediment-starved Big Bend coast in west central Florida. The river mouth empties into the head of the shallow, microtidal Waccasassa Bay and the Gulf of Mexico. The lower end of the river and the surrounding coastline are dominate...
Reduction-oxidation (redox) reaction conditions, which are of great importance for the soil chemistry of coastal marshes, can be temporally dynamic. We present a transect of cores from northwest Florida wherein radical post-depositional changes in the redox regime has created atypical geochemical profiles at the bottom of the sedimentary column. Th...
Along the coastline of Western Australian (WA), a carbonate ramp stretches ca 2,500 km north to south. The poleward flowing Leeuwin Current transports warm and oligotrophic water from the Indo-Pacific Warm Pool Region (Indonesian Archipelago and surroundings) along the WA coast and shifts biogeographies of foraminifera, corals and mollusks further...
The surface distribution of foraminiferal assemblages in the eastern Mississippi Sound salt-marshes (Grand Bay, Pascagoula River, Fowl River, and eastern Dauphin Island) can be used to establish the relationship between modern foraminiferal assemblages and environmental variables, for use as analogs in paleoenvironmental interpretations of this bar...
Marshes accrete through distinct processes of organic production and sediment accumulation. Feedbacks between the two processes can create large variability in vertical accretion at daily to annual time scales. As such, short-term and/or limited-duration measurements do not adequately address marsh response to long-term-sustained pressures such as...
Studies of Holocene salt-marsh foraminiferal assemblages are providing essential data for reconstructing both sea-level and frequency of major storm events. We sampled surface sediments at 17 stations along three transects to investigate the similarity between live (rose Bengal stained) and dead (unstained) assemblages, and their small-scale spatia...
Studies of Holocene salt-marsh foraminiferal assemblages are providing essential data for reconstructing both sea-level and frequency of major storm events. We sampled surface sediments at 17 stations along three transects to investigate the similarity between live (rose Bengal stained) and dead (unstained) assemblages, and their small-scale spatia...
Micro-CT is a method to generate non-invasively insight into opaque objects. Modern computer tomography shoots digital images and computes them to three-dimensional datasets. In the past years computed microtomography began to play an increasingly important role in investigating paleontological specimens. As technical developments advance, increasi...
Benthic foraminifera are increasingly used as environmental indicators of natural and anthropogenic stress in all possible marginal marine environments. This study on living (Rose Bengal stained) foraminifera was carried out in the Eastern Bay of Seine and Seine Estuary, which is situated on the French southern shore of the English Channel. Samplin...
Benthic foraminifera are increasingly used as environmental indicators of natural and anthropogenic stress in all possible marginal marine environments. This study on living (Rose Bengal stained) foraminifera was carried out at 5 stations collected in the Eastern Bay of Seine and Seine Estuary, France. Sampling took place biannually in spring and f...
Textularia hauerii d‘Orbigny 1846, an agglutinated benthic foraminifera from the Bazaruto archipel (Southeast Africa/Mozambique/Indian Ocean) shows remarkable quantities of ilmenite grains (FeTiO3) in its test. The intergranular cement of the biserial test up to 2 mm in length mainly consists of microgranular aragonite (Makled & Langer in press). T...
