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"oceans"
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Jacques Perrin presents oceans
Offers a comprehensive guide to the world's oceans, focusing on various forms of sea life around the world and the threats they face from pollution and global warming, as well as a behind-the-scenes glimpse of practical film-making under demanding and difficult conditions.
Book
Correction: Photosymbiont associations persisted in planktic foraminifera during early Eocene hyperthermals at Shatsky Rise (Pacific Ocean)
[This corrects the article DOI: 10.1371/journal.pone.0267636.].[This corrects the article DOI: 10.1371/journal.pone.0267636.].
Journal Article
Estuarine and coastal hydrography and sediment transport
\"A practical guide to the latest remote and in situ techniques used to measure sediments, quantify seabed characteristics, and understand physical properties of water and sediments and transport mechanisms in estuaries and coastal waters. Covering a broad range of topics from global reference frames and bathymetric surveying methods to the use of remote sensing for determining surface-water variables, enough background is included to explain how each technology functions. The advantages and disadvantages of each technology are explained, and a review of recent fieldwork experiments demonstrates how modern methods apply in real-life estuarine and coastal campaigns. Clear explanations of physical processes show links between different disciplines, making the book ideal for students and researchers in the environmental sciences, marine biology, chemistry and geology, whose work relies on an understanding of the physical environment and the way it is changing as a result of climate change, engineering and other influences\"-- Provided by publisher.
Book
Increase in ocean acidity variability and extremes under increasing atmospheric CO.sub.2
Ocean acidity extreme events are short-term periods of relatively high [H.sup.+ ] concentrations. The uptake of anthropogenic CO.sub.2 emissions by the ocean is expected to lead to more frequent and intense ocean acidity extreme events, not only due to changes in the long-term mean but also due to changes in short-term variability. Here, we use daily mean output from a five-member ensemble simulation of a comprehensive Earth system model under low- and high-CO.sub.2 -emission scenarios to quantify historical and future changes in ocean acidity extreme events. When defining extremes relative to a fixed preindustrial baseline, the projected increase in mean [H.sup.+ ] causes the entire surface ocean to reach a near-permanent acidity extreme state by 2030 under both the low- and high-CO.sub.2 -emission scenarios. When defining extremes relative to a shifting baseline (i.e., neglecting the changes in mean [H.sup.+ ]), ocean acidity extremes are also projected to increase because of the simulated increase in [H.sup.+ ] variability; e.g., the number of days with extremely high surface [H.sup.+ ] conditions is projected to increase by a factor of 14 by the end of the 21st century under the high-CO.sub.2 -emission scenario relative to preindustrial levels. Furthermore, the duration of individual extreme events is projected to triple, and the maximal intensity and the volume extent in the upper 200 m are projected to quintuple. Similar changes are projected in the thermocline. Under the low-emission scenario, the increases in ocean acidity extreme-event characteristics are substantially reduced. At the surface, the increases in [H.sup.+ ] variability are mainly driven by increases in [H.sup.+ ] seasonality, whereas changes in thermocline [H.sup.+ ] variability are more influenced by interannual variability. Increases in [H.sup.+ ] variability arise predominantly from increases in the sensitivity of [H.sup.+ ] to variations in its drivers (i.e., carbon, alkalinity, and temperature) due to the increase in oceanic anthropogenic carbon. The projected increase in [H.sup.+ ] variability and extremes may enhance the risk of detrimental impacts on marine organisms, especially for those that are adapted to a more stable environment.
Journal Article
Great explorers
\"Discover the stories of explorers -- the most ancient to the modern day -- from the deepest depths of the ocean to the highest mountains in the world. In this book you'll find true stories about Marco Polo's Silk Road, Edmund Hillary and Tenzing Norgay's conquest of Everest, and Buzz Aldrin and Neil Armstrong's trip to the moon, and much more. Learn all about the explorers who discovered the unknown and made the world the place we know today\"--Provided by publisher.
Book
The curious world of seahorses : the life and lore of a marine marvel
\"In this entertaining and informative book, science writer Till Hein shares the most tantalizing findings from the world of seahorses, opening up some of the secrets of these magical creatures of the sea. He reveals their intriguing biological features, such as their unique prehensile tails, their fins, and their lack of a stomach (seahorses only have intestines!). He speaks to experts about the fossil record of prehistoric seahorses, and examines their unique hunting strategy involving suction through their tubular (and toothless) snout. But the most unique aspect of the seahorses is their reproductive cycle, as it is the male of the species who becomes pregnant. Seahorses have become icons in feminist and transgender male communities for the way they can reshape human cultural notions of masculinity and fatherhood. Endlessly fascinating and charmingly approachable, The Curious World of Seahorses will captivate any reader looking to learn more about one of the most incredible creatures on Earth.\"-- Provided by publisher.
Book
Biogeochemical layering and transformation of particulate organic carbon in the Tropical Northwestern Pacific Ocean inferred from delta.sup.13C
Particulate organic carbon (POC) serves as the main carrier of the biological pump and determines its transmission efficiency, yet the transformation processes of POC remain incompletely understood. This study reports the vertical distribution of POC, dissolved inorganic carbon (DIC), [delta].sup.13 C-POC, and [delta].sup.13 C-DIC in the tropical Northwestern Pacific Ocean (TNPO). The research identified three distinct biogeochemical layers governing POC transformation: the POC rapid synthesis-degradation layer (RSDL, 0-300 m), the net degradation layer (NDL, 300-1000 m), and the stable layer (SL, 1000-2000 m). From the top to the bottom of the RSDL, [delta].sup.13 C-POC values decreased by an average of 2.23 0/00, while the carbon-to-nitrogen (C:N) ratios increased by an average of 2.3:1, indicating the selective degradation of POC. In the NDL, [delta].sup.13 C-POC and [delta].sup.13 C-DIC exhibited a significant negative correlation (r=0.43, p<0.05), indicating a net transformation of POC to DIC. In the SL, POC proved to be resistant to degradation, with POC exhibiting the highest C:N (15:1 on average) and the lowest [delta].sup.13 C-POC values (average -27.71 0/00).
Journal Article
Dive in! : exploring our connection with the ocean
\"Part of the nonfiction Orca Footprints series for middle readers, with color photographs throughout. Find out why the ocean matters, why it is an amazing place and what you can do to keep it that way.\"-- Provided by publisher.
Book
AMERICAN BADGER
We report an observation of an AMERICAN BADGER (TAXIDEA TAXUS) SWIMMING ashore from the Pacific Ocean near El Campito, Baja California, Mexico. The individual emerged from the surf and immediately moved inland. This record represents the first recorded instance of an American badger swimming in ocean waters.
Journal Article