Deep squid Deep sea vampire squid live long and breed repeatedly like fish, in stark contrast to all other known squid species that die after only a single breeding season. The discovery suggests that the life patterns of coastal and shallow-water organisms may not apply to deep-sea species, say researchers, led by Dr Henk-Jan Hoving from GEOMAR Helmholtz Centre for Ocean Research in Germany. He and colleagues reviewed vampire squid collections from the 1960s and 1970s at the Santa Barbara Museum of Natural History and noticed that many of the 43 females in the collection had spawned, but were in a reproductive resting phase. By reconstructing the spawning history of many of the specimens, the researchers found that the largest female had released at least 3800 eggs, but even though her reproductive system was in a resting state (that is, she had no ripe or developing eggs) she had another 6500 oocytes in store for future spawning events. The researchers believe that it may be as long as a month, suggesting a life span of more than eight years.


The findings are published today in Current Biology.Slow paceVampire squid live in low oxygen environments in the open ocean at depths between 500 and 3000 metres, where they feed on zooplankton and falling detritus.
Hoving and colleagues say that the vampire squid's slow mode of life may not enable them to gather enough energy-rich food to support a single mass breeding event, so after spawning they return to a gonadal resting phase presumably to start accumulating energy for a new reproductive cycle.
Other researchers came from the Centre for Environment, Fisheries and Aquaculture Science in the UK and the Monterey Bay Aquarium and Research Institute (MBARI). By clicking 'Send to a friend' you agree ABC Online is not responsible for the content contained in your email message. A vampire bachelor party is no different — except the men are drinking Blissky (whiskey-flavored synthetic blood).


But we need to do more research to better understand the animals that live in the largest habitat of the planet, the water column of the deep sea," he says.
And no one can throw a party quite like Jack, the illegitimate son of the legendary Casanova. Her investigation uncovers more than she wants to know, especially about this modern-day Casanova.



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