Navigation Links
Deep-sea octopus has longest-known egg-brooding period
Date:7/30/2014

A deep-sea octopus protected and tended her eggs until they hatched 4.5 years later, according to a study published July 30, 2014 in the open-access journal PLOS ONE by Bruce Robison from Monterey Bay Aquarium Research Institute and colleagues.

Octopuses typically have a single reproductive period during their life, where the females protect and take care of their fertilized eggs until they hatch. Shallow-water octopuses typically care for their eggs for 1 to 3 months, but little is known about the brooding of deep-sea species. Using a remotely operated vehicle to monitor the Monterey Submarine Canyon off of central California, the authors of this study discovered a deep-sea octopus in 2007 on the seafloor at around 1400 m deep. When they returned in May 2007, the same octopus was sighted up on the rock and guarding a clutch of attached eggs. The scientists returned to the site 18 times over 53 months to monitor egg development and measure the length of her brooding period from its inception.

Each time the researchers returned, they found the same octopus clinging to the vertical rock face, arms covering her eggs. Continuous growth of the eggs led scientists to conclude that it was the same clutch throughout. About 160 eggs hatched sometime between September and October 2011, 53 months (almost 4.5 years) after the initial May 2007 sighting. At 53 months, this is by far the longest egg-brooding period ever reported for any animal species. Since these results are specific to the observation of one octopus brooding period, the authors suggest that these results may not be unique to all deep-sea species. When compared with the brooding of well-studied shallow-water species, these results indicate how little we know about the deep-sea species and the need for further studies.

Bruce Robison added, "These surprising results emphasize the importance of parental care in producing well-developed offspring that can cope with the rigors of the deep-sea habitat. Because the brooding period is temperature dependent, the results also provide a caution about the potential consequences of our changing climate."


'/>"/>

Contact: Kayla Graham
onepress@plos.org
PLOS
Source:Eurekalert  

Related biology news :

1. Hot meets cold at new deep-sea ecosystem: Hydrothermal seep
2. New species of deep-sea catshark described from the Galapagos
3. Copper chains: Study reveals Earths deep-seated hold on copper
4. Delving into the molecular mechanism behind deep-sea bacterias pressure tolerance
5. Deep-sea crabs seek food using ultraviolet vision
6. Wood on the seafloor -- an oasis for deep-sea life
7. KU Leuven lab coordinates €9m effort to find new deep-sea drugs
8. Antarcticas first whale skeleton found with nine new deep-sea species
9. Antarcticas first whale skeleton found with 9 new deep-sea species
10. Thermal limit for animal life redefined by first lab study of deep-sea vent worms
11. Successful deployment of an autonomous deep-sea explorer to search for new forms of microbial life
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Deep-sea octopus has longest-known egg-brooding period
(Date:12/16/2016)... Research and Markets has announced the addition of the ... report to their offering. ... The biometric vehicle access system market, in terms of ... 2016 to 2021. The market is estimated to be USD 442.7 ... 2021. The growth of the biometric vehicle access system market is ...
(Date:12/15/2016)... , Dec. 15, 2016   WaferGen Bio-systems, Inc. ... genomics technology company, announced today that on December 13, ... Department of The Nasdaq Stock Market LLC which acknowledged ... price of WaferGen,s common stock had been at $1.00 ... has regained compliance with Listing Rule 5550(a)(2) of the ...
(Date:12/15/2016)... AUBURN HILLS, Mich. , Dec. 15, 2016 /PRNewswire/ ... simply unlocking car doors or starting the engine. Continental ... 2017 in Las Vegas . Through ... PASE (Passive Start and Entry) and biometric elements, the ... the field of vehicle personalization and authentication. ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... , Jan. 18, 2017 The global ... USD 92.9 billion by 2025, according to a ... industry has been adaptive of the function of ... as 2002. Among the services outsourced, clinical trial ... instance, Johnson & Johnson was the first pharmaceutical ...
(Date:1/18/2017)... 2017 According to a new market research report "In ... Disease), & End User (Molecular Diagnostic Laboratories, Academic and Research Institutions) - Global ... 739.9 Million by 2021 from USD 557.1 Million in 2016, growing at a ... ... MarketsandMarkets Logo ...
(Date:1/18/2017)... ... January 18, 2017 , ... Total Orthopedics and Sports ... A-CIFT™ Solofuse-P™. The operation took place on Wednesday, January 11, 2017 at Long ... an anterior cervical discectomy and fusion on a 42 year old female who ...
(Date:1/18/2017)... ... January 18, 2017 , ... DrugDev customers ... Clinical Ops Executives (Hyatt Regency Miami, January 24-26). DrugDev will join customers including ... issues such as trial performance metrics, patient enrollment diversity, protocol optimization, and global ...
Breaking Biology Technology: