World Wide Studies

World Wide Studies in marine biology have turned up some interesting results in the world of marine biology. For example, world wide studies of oceanic squid of the genus Sthenoteuthis, focusing on the subtypes S. pteropus in the Atlantic Ocean along with S. oualaniensis in the Eastern Pacific Oceans and Indian Oceans yielded interesting results. Most surprising was that even in a worldwide study, the quantitative distribution of the types of squid was not uniform. Worldwide study showed the areas of the most dense concentrations of squid coincided with most dynamically active ocean zones of convergences and divergences occurring in the most active hydrological fronts.

Worldwide studies also showed that most Planktonic paralarvae live in the epipelagic zone near the pycnocline. The worldwide spatial range structure of the types of plankton the squid feed upon is rather complicated, consisting of several areas that have high squid abundance. These areas are quite scattered worldwide, geographically encompassing many different ecological parameters and requirements of the many different squid populations. While genetic exchange does exist between these different areas worldwide, these exchanges represent the super-population level of intra-species structure across worldwide studies of squid.

Most other species worldwide, especially visible in studies of S. oualaniensis, are undergoing a period of active adaptive radiation heretofore unobserved in similar populations. For example, no less than five specific S. oualaniensis were found, along with two intraspecific S. pteropus forms were all found in oceans worldwide. Some examples of the surprising adaptive radiations of worldwide squid behavior in these observed populations were a high fecundity of a maximum of 10 to 22 million oocytes, a sped-up and monocyclic life cycle of one year, rapid replacement of generations, several base variations of size and structure and a high productivity rate. While worldwide, paralarvae and juvenile squid mainly feed upon crustaceans, studies determined that food for most adult squid are micro-nektonic lantern fish.

The most surprising finding of these worldwide studies was the finding that adult Sthenoteuthis do not actually have a significant role in the food cycle of big oceanic top-predators, contrary to popular belief. Further worldwide studies of these squid are needed, as these findings have turned out to be of great interest to not just marine biologists, but the entire world. These worldwide studies function as important indicators of the varying elements of worldwide oceanic ecosystems, and help guide the world to find new potential resources for fisheries.