Dynamics of soundscape in a shallow water marine environment: A study of the habitat of the Indo-Pacific humpback dolphin

2015 ◽  
Vol 137 (5) ◽  
pp. 2939-2949 ◽  
Author(s):  
Shane Guan ◽  
Tzu-Hao Lin ◽  
Lien-Siang Chou ◽  
Joseph Vignola ◽  
John Judge ◽  
...  
2020 ◽  
Vol 649 ◽  
pp. 125-140
Author(s):  
DS Goldsworthy ◽  
BJ Saunders ◽  
JRC Parker ◽  
ES Harvey

Bioregional categorisation of the Australian marine environment is essential to conserve and manage entire ecosystems, including the biota and associated habitats. It is important that these regions are optimally positioned to effectively plan for the protection of distinct assemblages. Recent climatic variation and changes to the marine environment in Southwest Australia (SWA) have resulted in shifts in species ranges and changes to the composition of marine assemblages. The goal of this study was to determine if the current bioregionalisation of SWA accurately represents the present distribution of shallow-water reef fishes across 2000 km of its subtropical and temperate coastline. Data was collected in 2015 using diver-operated underwater stereo-video surveys from 7 regions between Port Gregory (north of Geraldton) to the east of Esperance. This study indicated that (1) the shallow-water reef fish of SWA formed 4 distinct assemblages along the coast: one Midwestern, one Central and 2 Southern Assemblages; (2) differences between these fish assemblages were primarily driven by sea surface temperature, Ecklonia radiata cover, non-E. radiata (canopy) cover, understorey algae cover, reef type and reef height; and (3) each of the 4 assemblages were characterised by a high number of short-range Australian and Western Australian endemic species. The findings from this study suggest that 4, rather than the existing 3 bioregions would more effectively capture the shallow-water reef fish assemblage patterns, with boundaries having shifted southwards likely associated with ocean warming.


1967 ◽  
Vol 104 (6) ◽  
pp. 585-607 ◽  
Author(s):  
John McManus

AbstractThe Lettereeneen fault, a newly recognized structure, brings the Mweelrea and Maumtrasna Groups of the Partry Series (Caradocian-Llandeilian age) into contact. The stratigraphy of the Mweelrea Group, of red bed facies, is followed from the presence of welded tuff horizons; no such markers exist in the Maumtrasna Group which lies unconformably upon the former.Sedimentary structures of shallow water origin occur in each group. Three types of conglomerate recognized in the area are examined. The immature feldspathic sandstones increase in arkosity upwards.A proluvial or proluvio-marine environment of deposition is suggested, with debris derived from an eastward extension of the metamorphosed Dalradian rocks of the Connemara Cordillera and foothills of sedimentary and volcanic rocks.


1950 ◽  
Vol 87 (3) ◽  
pp. 175-180 ◽  
Author(s):  
M. H. Khan

AbstractForaminiferal evidence in the past has been held to suggest that the Gault is a deep sea deposit—a view which conflicts with the belief held by many on geological and other palaeontological grounds that the Gault was laid down in fairly shallow water. This contradiction is due to a misinterpretation of the foraminiferal evidence which, in the opinion of the writer, favours a temperate, relatively shallow marine environment for the deposition of the Gault, at least in South-East of England.


2014 ◽  
Vol 135 (4) ◽  
pp. 2369-2369 ◽  
Author(s):  
Shane Guan ◽  
Tzu-Hao Lin ◽  
Lien-Siang Chou ◽  
Joseph F. Vignola

1988 ◽  
Vol 62 (6) ◽  
pp. 945-958 ◽  
Author(s):  
Robert A. Linder ◽  
J. Wyatt Durham ◽  
William N. Orr

The echinoids Salenia cascadensis n. sp., Stomechinus? dissimilaris n. sp., Glyptocidaris sp., Arbacia abiquaensis n. sp., Lytechinus baldwini n. sp., Gagaria crenularis n. sp., and Kewia marquamensis n. sp. occur in the Late Oligocene (Chattian) Scotts Mills Formation near Silverton, Oregon, just north of 45°N latitude. The echinoids occur in shallow-water sediments deposited among basaltic sea stacks along a rockbound, storm-dominated marginal marine environment. Except for Kewia, these occurrences mark a more northerly limit for these genera in the northeastern Pacific and add to their stratigraphic range.


2015 ◽  
Vol 18 (4) ◽  
pp. 84-101
Author(s):  
Thanh Thi Ngoc Nguyen ◽  
Luan Thi Bui

Interpretation of wireline logging data supported to recover the sedimentary environment of block 102 of Song Hong basin. It inchided in determination of the spatial distribution of source, reservoir and cap rocks and an indispensable part in oil exploration of this area. Resulted wireline logging data showed some sedimentary environment units as the following The late Oligocene was delta environment. It was identified as forming delta plain, swamp to lacustrine. The middle Miocene had changed to shallow water marine environment, which formed the shoreface, tidal flat, lagoon and channel. The lower Miocene was aluvial environment that changed into fluvial and coastal plain.


2020 ◽  
Vol 27 (1-2) ◽  
Author(s):  
Ruzena Gregorova ◽  
Pavla Tomanová Petrová ◽  
Helena Gilíková ◽  
Slavomír Nehyba ◽  
Rostislav Brzobohatý ◽  
...  

The fossil assemblages of the foraminifers, bryozoans, molluscs, corals, decapods, sharks and teleosteans were analysed from the Litenčice sand pit in the middle part of the Carpathian Foredeep. The section can be assigned to the Karpatian Stage of the Central Paratethys regional stratigraphy (uppermost Lower Miocene) on the basis of species Uvigerina graciliformis Papp et Turn., Lampanyctus carpaticus (Brz.) and Agapilia pachii (Hoern.). Rich and diversified assemblages indicate mainly shallow water marine environment. Foraminifers and molluscs indicate salinity perturbations. Bryozoans and also molluscs document environment with relatively high dynamics and depth of water about 100 m. Foraminifers, fishes and sharks represent deeper water taxa and indicate a possible reworking of shallow-water elements. The studied sands and gravels of the Holešov Member of the Kroměříž Formation are interpreted as sediments of gravitational currents, more precisely dense turbidity currents (high-density turbidity currents) in the sense of Lowe (1982). The deposition environment can probably be placed on the submarine slope of the coarse-grained delta of the Gilbert type (so-called foresets). This study provided evidence of a number of fossil groups that occur at the site.


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