Deep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.

Octopuses typically have a single reproductive period and then they die (semelparity). Once a clutch of fertilized eggs has been produced, the female protects and tends them until they hatch. In most shallow-water species this period of parental care can last from 1 to 3 months, but very little is k...

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Autores principales:	Bruce Robison, Brad Seibel, Jeffrey Drazen
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ee81e391ec3c4462a6e6d1101b23fc88
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spelling	oai:doaj.org-article:ee81e391ec3c4462a6e6d1101b23fc882021-11-25T06:06:43ZDeep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.1932-620310.1371/journal.pone.0103437https://doaj.org/article/ee81e391ec3c4462a6e6d1101b23fc882014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25075745/?tool=EBIhttps://doaj.org/toc/1932-6203Octopuses typically have a single reproductive period and then they die (semelparity). Once a clutch of fertilized eggs has been produced, the female protects and tends them until they hatch. In most shallow-water species this period of parental care can last from 1 to 3 months, but very little is known about the brooding of deep-living species. In the cold, dark waters of the deep ocean, metabolic processes are often slower than their counterparts at shallower depths. Extrapolations from data on shallow-water octopus species suggest that lower temperatures would prolong embryonic development periods. Likewise, laboratory studies have linked lower temperatures to longer brooding periods in cephalopods, but direct evidence has not been available. We found an opportunity to directly measure the brooding period of the deep-sea octopus Graneledone boreopacifica, in its natural habitat. At 53 months, it is by far the longest egg-brooding period ever reported for any animal species. These surprising results emphasize the selective value of prolonged embryonic development in order to produce competitive hatchlings. They also extend the known boundaries of physiological adaptations for life in the deep sea.Bruce RobisonBrad SeibelJeffrey DrazenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 7, p e103437 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bruce Robison Brad Seibel Jeffrey Drazen Deep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.
description	Octopuses typically have a single reproductive period and then they die (semelparity). Once a clutch of fertilized eggs has been produced, the female protects and tends them until they hatch. In most shallow-water species this period of parental care can last from 1 to 3 months, but very little is known about the brooding of deep-living species. In the cold, dark waters of the deep ocean, metabolic processes are often slower than their counterparts at shallower depths. Extrapolations from data on shallow-water octopus species suggest that lower temperatures would prolong embryonic development periods. Likewise, laboratory studies have linked lower temperatures to longer brooding periods in cephalopods, but direct evidence has not been available. We found an opportunity to directly measure the brooding period of the deep-sea octopus Graneledone boreopacifica, in its natural habitat. At 53 months, it is by far the longest egg-brooding period ever reported for any animal species. These surprising results emphasize the selective value of prolonged embryonic development in order to produce competitive hatchlings. They also extend the known boundaries of physiological adaptations for life in the deep sea.
format	article
author	Bruce Robison Brad Seibel Jeffrey Drazen
author_facet	Bruce Robison Brad Seibel Jeffrey Drazen
author_sort	Bruce Robison
title	Deep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.
title_short	Deep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.
title_full	Deep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.
title_fullStr	Deep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.
title_full_unstemmed	Deep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.
title_sort	deep-sea octopus (graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/ee81e391ec3c4462a6e6d1101b23fc88
work_keys_str_mv	AT brucerobison deepseaoctopusgraneledoneboreopacificaconductsthelongestknowneggbroodingperiodofanyanimal AT bradseibel deepseaoctopusgraneledoneboreopacificaconductsthelongestknowneggbroodingperiodofanyanimal AT jeffreydrazen deepseaoctopusgraneledoneboreopacificaconductsthelongestknowneggbroodingperiodofanyanimal
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Deep-sea octopus (Graneledone boreopacifica) conducts the longest-known egg-brooding period of any animal.

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