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Extreme plasticity in life-history strategy allows a migratory predator (jumbo squid) to cope with a changing climate.
Hydro-acoustic data, reveal that squid biomass in this study area nearly doubled between 2010 and 2011, primarily due to a large increase in small squid that were not susceptible to the fishery, indicating a climate-driven switch in size-at-maturity may allow D. gigas to rapidly adapt to and cope with El Niño.
Reproductive biology in two species of deep-sea squids
The data and the literature data show that the so-called “synchronous ovulation” probably occurs in all deepwater squids.
Spermatophore implantation in Rossia moelleri Steenstrup, 1856 (Sepiolidae; Cephalopoda)
The autonomous implantation process of spermatangia of R. moelleri does not have a purely mechanical basis but necessitates an additional, probably chemical mechanism or a combination of these two.
Vampire squid: detritivores in the oxygen minimum zone
- H. Hoving, B. Robison
- Biology, MedicineProceedings of the Royal Society B: Biological…
- 22 November 2012
Investigations on the feeding ecology and behaviour of Vampyroteuthis reveal a unique adaptation that allows these animals to spend most of their life at depths where oxygen concentrations are very low, but where predators are few and typical cephalopod food is scarce.
Reproductive system and the spermatophoric reaction of the mesopelagic squid Octopoteuthis sicula (Rüppell 1844) (Cephalopoda: Octopoteuthidae) from southern African waters
Reproductive features of the poorly known oceanic squid Octopoteuthis sicula are described and quantified to gain insight into the reproductive biology of the species and shows female-biased sexual size dimorphism.
Reproductive system of the giant squid Architeuthis in South African waters
The reproductive system is described from 15 giant squid Architeuthis sp., collected between 1972 and 2002 in South African waters. Distinctive features of the mate reproductive system are the long…
Brooding and sperm storage by the deep-sea squid Bathyteuthis berryi (Cephalopoda: Decapodiformes)
- S. Bush, H. Hoving, C. Huffard, B. Robison, L. Zeidberg
- BiologyJournal of the Marine Biological Association of…
- 23 February 2012
Some potential costs and benefits of post-spawning egg care are presented, a strategy that is now known for two families of deep-dwelling squids, but may turn out to be more common with the increasing exploration of the deep sea.
Female reproductive biology, and age of deep-sea squid Histioteuthis miranda from southern Africa
Data on female reproductive strategy and male and female length-weight relationships and age are presented for the mesopelagic squid Histioteuthis miranda, indicating that eggs are spawned at once or over a short period.
Vampire squid reproductive strategy is unique among coleoid cephalopods
It is reported that vampire squid (Vampyroteuthis infernalis) show evidence of multiple reproductive cycles, and this combination of reproductive traits is different from that of any other extant coleoid cephalopod.
Getting Under the Skin: Autonomous Implantation of Squid Spermatophores
Here, through on board observation of freshly caught deep-sea squid, it is shown for the first time that spermatophores have an autonomous mechanism that enables them to migrate into body tissue.