نتایج جستجو برای: benthic foraminifera
تعداد نتایج: 15528 فیلتر نتایج به سال:
Deep-sea floors represent one of the largest and most complex ecosystems on Earth but remain essentially unexplored. The vastness and remoteness of this ecosystem make deep-sea sampling difficult, hampering traditional taxonomic observations and diversity assessment. This problem is particularly true in the case of the deep-sea meiofauna, which largely comprises small-sized, fragile, and diffic...
The possible effects of environmental factors on the dimorphic mode of reproduction in benthic foraminifera have been reported in the literature. Published observations based on field samples have indicated an inverse relationship between the ratio of microspheric/megalospheric forms and temperature or salinity. These findings imply their potential use in palaeoclimatic studies. Two experiments...
The impact of an asteroid at the end of the Cretaceous caused mass extinctions in the oceans. A rapid collapse in surface to deepocean carbon isotope gradients suggests that transfer of organic matter to the deep sea via the biological pump was severely perturbed. However, this view has been challenged by the survival of deep-sea benthic organisms dependent on surface-derived food and uncertain...
The species diversity of benthic foraminifera at four abyssal working areas in the Labrador Sea, Basin, and Southwest Azores is documented. One hundred fifty taxa (forty-three not assigned to a species) were found their was recorded. twenty-four (fifteen illustrated with optical and/or SEM (Scanning Electron Microscope) images on twelve plates. material sampled during RV Sonne cruise SO286 as p...
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