Aug 31, 2016 – Cannibalism is not so unusual in the deep sea, especially for squid, but until recently the diet of Gonatus squid was largely unknown. Remotely operated vehicle observations of these squid in their natural habitat have enabled scientists to learn a great deal more about their feeding behavior.
Aug 30, 2013 – Many deep-sea animals such as anglerfish use parts of their body as lures to attract prey. Some deep-sea squids may use this strategy as well. In a recent paper, researchers associated with MBARI describe a deep-sea squid that appears to use a different method to lure prey—its tentacle tips flap and flutter as if swimming on their own.
Sept 26, 2012 – In the 100 years since marine biologists hauled the first vampire squid up from the depths of the sea, perhaps a dozen scientific papers have been published on this mysterious animal, but no one has been able to figure out exactly what it eats. A new paper by MBARI Postdoctoral Fellow Henk-Jan Hoving and Senior Scientist Bruce Robison shows for the first time that the vampire squid uses two thread-like filaments to capture bits of organic debris that sink down from the ocean surface into the deep sea.
Most of the squid we know as “calamari” are shallow-water species that live near the shore. These species have short lives. Once they mature, after about a year, they experience a single brief breeding period then die. But many more squid species live in deep water and the details of their lives, particularly their mating behavior, are shrouded in mystery.
The world’s oceans harbor a wide variety of squid, from 10-centimeter-long market squid to the elusive giant squid, which may grow to over 20 meters in length. Based on decades of observations, marine biologists assumed that all of these species of squids laid their eggs in clusters on the sea floor, where the eggs developed and hatched without any help from their parents.
Market squid (Loligo opalescens) are currently the largest commercial fishery in California, yet scientists know little about the early life history of these heavily-fished animals. A new research technique developed by MBARI postdoctoral fellow Louis Zeidberg promises to help fill this information gap.