This book is the travel log of capturing Hirondellea gigas. H. gigas is one of the creatures living in the deepest region of the ocean. It also lives in the Challenger Deep of the Mariana Trench, deepest point in the ocean. It is adapted to high-pressure, nutrient-poor environments. Its adaptation mechanism remains shrouded in mystery. People who love deep-sea creatures, including scientists, are interested in their ecology. However, there are many obstacles to approaching the Abyss, including the means and the cost. This book shows how to capture H. gigas without using submersible or scientific research vessel. Lots of photographs including H. gigas, deep-sea floor, and deep-sea fishes. 
 
This is a rare record of the capture of a deep-sea organism outside of a marine research institute. No scientific knowledge is required at all. Everyone, from children to adults, will enjoy reading this book.
 
Author: Hideki Kobayashi Ph.D.
 
Publication
Kobayashi Hideki, et al. The Hadal Amphipod Hirondellea gigas Possessing a Unique Cellulase for Digesting Wooden Debris Buried in the Deepest Seafloor. PLOS ONE 7(8): e42727 (2012).
 
Kobayashi Hideki, et. al. Polysaccharide hydrolase of the hadal zone amphipods Hirondellea gigas. Bioscience, Biotechnology, and Biochemistry, 82(7), 1123-1133 (2018).
 
Kobayashi Hideki, et al. An aluminum shield enables the amphipod Hirondellea gigas to inhabit deep-sea environments. PLOS ONE 14(4): e0206710 (2019)