The sea holds all the secrets of the origin of life on Earth. For most of the animals, terrestrial habitat evolved after spending life in sea millions of years ago. Marine animals are used for research and development because of their connection with the evolution of animals.
Marine biology is the field of science dealing with the study of marine life species and other organisms found in the sea. Marine biology is more about classifying species on the basis of the environment rather than taxonomy since various species live on land and various live in the sea. The marine biologists understand the fertilization of oocyte and then observe it to the phase where it becomes independent of reproducing on its own.
They use laboratories in order to sequence the molecules in the sample and obtain information. The researchers collaborate with others in other to understand the sequencing. Development never stops from happening. It continues evolving and establishing new discoveries.
THE RESEARCH WORK IN PROGRESS:
There are various researches being carried out in the field of developmental biology in marine life. This is happening in order to unveil the mysteries of the deep sea and understand the evolution of marine species.
Research work is being carried out in order to know the molecular and cellular mechanisms that take place during ascidian embryogenesis in order to shape up the tail.
Research is carried out to understand molecular mechanisms that take place inside ascidian embryos for germline segregation.
Researchers want to understand the importance and role of calcium signalling during the process of fertilization and oocyte maturation.
Researchers want to understand the oocyte meiotic maturation along with light-induced spawning in hydrozoans jellyfishes.
There is another work being carried out to understand the evolutionary and developmental analysis of embryogenesis. This is being carried out in reference to the comparison between direct and indirect development that takes place in sea urchins.
The researchers also want to understand the structure of gene regulation networks and their function.
Developmental biology of marine life basically deals with the understanding of the molecular and cellular mechanisms which leads to development of the marine life species right from oocyte maturation to fertilization. It also deals with understanding the evolutionary processes.
Techniques like molecular biology, micro-manipulation, live imaging etc are being used to focus on the discovery of marine life species. By using such techniques, the scientists are able to understand the evolution and developmental processes that shape up the marine life species.
RUBY SEADRAGON- A STUDY IN DEVELOPMENTAL BIOLOGY OF MARINE LIFE
The scientists at the Scripps Institution of Oceanography, San Diego stumbled upon a new species of seadragon. The anatomical research tools along with DNA were used in order to examine the tissue samples by Western Australia Museum. The researchers noticed that it was significantly different from the two known species of seadragon and forwarded their request for a full specimen and pictures.
On examining, they found that the animal was different from others since it has red shade. Leafy seadragon is known for its orange tint and common seadragons for their yellow or purple tint. They realised that the ruby red colour made it different from the existing two species and called in ‘Ruby Seadragon’ or Phyllopteryx new sea.
The powerful DNA tools are helping it in discovering more species and the discovery of a new species give an indication that there is so much more left to be discovered. A rotating 3D model of the seadragon was constructed by using a computer tomography and assembling the 5000 X-ray slices. After investigating the matter further, the team of researchers could find another Ruby seadragon sample that had been kept in Australian National Fish Collection.
The researchers realised that more than 150 years ago, the two specimens were discovered. This discovery made them realise that ocean has a lot of depths left to be explored. There are a plethora of new specimens waiting to be seen in ocean exploration. The determination of the physiological status of the marine life species along with the development of the biological sensors is the need of the hour. There is little to no information available when it comes to physiology, cell biology, molecular biology etc of the organisms.
The understanding of developmental biology in marine life will help in understanding the physiological basis for reproduction, speciation, development, nutrition, growth along with other vital information. They can later be used for elucidating the fundamental questions related to the function of cells, organs, tissues, and entire organisms. This further helps in human health and medical research. The cellular immunity (as discovered in starfish), biochemical mechanisms that control fertilization, and other such mechanisms were first discovered in marine species only. Further research would help in diagnosis, treatment and cure of a disease.