Marine background noise (ocean ambient noise) includes marine environmental and technical noise. Marine dynamic noise and biological noise are also called marine environmental noise. Generally speaking, dynamic marine noise is produced by waves, ocean currents, and wind. Biological noise is produced by marine organisms, such as fish, shrimp, and mammals. […]
It is reported that “Antarctic krill (Euphausia superba) is eaten 300 million tons per year by humans,” which is impressive. Although Antarctic krill is a fantastic marine organism (according to incomplete statistics, there are about 500 million tons in the world), according to the statement that 300 million tons are […]
The extermination of the bones of extinct giant dolphin (Ankylorhiza tiedemani) Scientists have discovered the near-complete skeleton of the first extinct large dolphin in South Carolina. This 15-foot-long dolphin (Ankylorhiza tiedemani specimen) living in the Oligocene period (about 25 million years ago), it was previously known only from a fossil of […]
According to a new major study, global warming will cause cliff-like “catastrophic” biodiversity loss globally if some greenhouse gas emissions are not reduced, and some ecosystems on the planet may collapse by 2030. In other words, the earth’s ecosystem may collapse one by one in the next 10 years, and […]
Evidence for the existence of Megalodon giants in the ocean about 20 million years ago has been found in several places on Earth. These giants had been controlling the ocean for 13 million years. Megalodon is a species of shark that is reported to have become extinct about 3.5 million […]
What are Otoliths? Otoliths are calcium carbonate growths located in the inner ears of bony fishes. Otoliths provide a fish’s balance, hearing ability, and velocity control. However, Ichthyologists can study otoliths to determine the age and health of fish just as dendrochronologists study tree rings. Otolith background Since Pannella described […]
Codfish is the first commodity of international trade, and the great “geographical discovery” was also opened by it. At that time, the rich cod fishery was undoubtedly an offshore gold mine. From the beginning of the 16th century, Spanish, British, and French fishing boats embarked on an expedition to Newfoundland […]
The untold story of spermaceti oil At the beginning of the eighteenth century, London was drowning in deep darkness on the eve of prosperity. London’s darkness is not solely a metaphor but also literally – the streets at night lack light, thefts are rampant and violent crime endlessly emerges. Walking […]
Introduction Recently, the Institute of Deep-Sea Sciences and Engineering in the University of Chinese Academy of Sciences published a research paper in the journal Integrative Zoology, titled as “First live sighting of Deraniyagala’s beaked whale (Mesoplodon hotaula Deraniyagala, 1963) or ginkgo-toothed beaked whale (Mesoplodon gingkodens Nishiwaki & Kamiya, 1958) in the western […]
In terms of combating climate change and maintaining marine health, saving whales may be more important than planting trees. The whale is the largest animal in the world, it can provide fertilizer for phytoplankton, and this phytoplankton can absorb 40% of the world’s carbon dioxide. From this point of view, […]