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:1/25/2016)... 2016  Glencoe Software, the world-leading supplier of image ... will provide the data management solution OMERO Plus for ... Photo - ... Phenotypic analysis measures the characteristics and behavior ... between states such as health and disease, the presence ...
(Date:1/20/2016)... , Jan. 20, 2016   MedNet Solutions , ... entire spectrum of clinical research, is pleased to announce ... significant achievements are the result of the company,s laser ... iMedNet eClinical , it,s comprehensive, easy-to-use and highly ... --> Key MedNet growth achievements in 2015 ...
(Date:1/13/2016)... , January 13, 2016 /PRNewswire/ ... announced the addition of the  "India ... Estimation & Forecast (2015-2020)"  report ... http://www.researchandmarkets.com/research/7h6hnn/india_biometrics ) has announced the addition ... Identification Market - Estimation & Forecast ...
Breaking Biology News(10 mins):
(Date:2/10/2016)...  Allergan plc (NYSE: AGN ) a leading ... , Allergan,s CEO and President, will be featured as ... the RBC Capital Markets Healthcare Conference on Tuesday, February ... York Palace Hotel in New York, NY ... can be accessed on Allergan,s Investor Relations web site ...
(Date:2/10/2016)... ... February 10, 2016 , ... LATHAM, NEW YORK... Marktech ... SPIE Photonics West conference in San Francisco’s Moscone Center from February 16-18, 2016, ... venue. , These latest InGaAs PIN diode standard packages feature a TO-46 metal ...
(Date:2/10/2016)... ... February 10, 2016 , ... Global Stem Cells Group, ... Singapore-based Global Stem Cells Network (GSCN) and its affiliate Global Medical Training ... latest adipose and bone marrow therapies. , Through the new collaboration, Global ...
(Date:2/9/2016)... , Feb. 9, 2016  Regenicin, Inc. (OTC ... specializing in the development and commercialization of regenerative ... tissues and organs, recently reported the Company,s operating ... quarter of 2016. Lonza America , ... 2015 fiscal year in the process of consummating ...
Breaking Biology Technology: