Friday 17 May
Bermuda cave amphipod (Pseudoniphargus grandimanus)
Bermuda cave amphipod fact file
- Find out more
- Print factsheet
Bermuda cave amphipod description
- Total male body length: 6.5 - 8 mm (2)
Bermuda cave amphipod biology
The fact that large adults, but notably no specimens carrying eggs, have been found further from the sea coast than juveniles could indicate a dependence on anchialine/marine habitats for reproduction, and also that juveniles migrate inland to mature (3).
Nothing else is known of this Bermuda cave amphipod’s biology.Top
Bermuda cave amphipod range
Recorded from wells, waterworks and cave waters in Hamilton, St. George’s, Devonshire, Paget, Smith’s and Warwick Parishes, Bermuda, including Church, Wonderland, Admiral’s and Government Quarry Caves (2).Top
Bermuda cave amphipod habitat
Found in a wide range of anchialine limestone cave and groundwater habitats throughout the entire salinity range, although most frequently in low salinity areas. Juveniles are found far closer (11-180 m) to the sea coast than adults (147-853 m) (2).Top
Bermuda cave amphipod status
Classified as Critically Endangered (CR) on the IUCN Red List 2006 (1).Top
Bermuda cave amphipod threats
The threats to this species are unknown.Top
Bermuda cave amphipod conservation
There are currently no conservation measures underway targeting this species.Top
Find out more
For more information on this atyid shrimp see:
- Anchialine Caves and Cave Fauna of the World:
AuthenticationThis information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact: firstname.lastname@example.orgTop
- A species belonging to the Amphipoda order.
- Coastal bodies of standing waters that have no surface connections to the ocean but display both tidal fluctuations and salinity ranges characteristic of fresh and brackish waters, indicating the presence of subsurface connections to the watertable and ocean.
- Central, forward-projecting and occasionally long spine between the eyes of crustaceans.
- The concentration of dissolved salt in water.
- IUCN Red List (January, 2007)
- Anchialine Caves and Cave Fauna of the World (February, 2007)
- Stock, J.H., Holsinger, J.R., Sket, B. and Iliffe, T.M. (1986) Two new species of Pseudoniphargus (Amphipoda), in Bermudian groundwaters. Zoologica Scripta, 15(3): 237 - 249.
MyARKive offers the scrapbook feature to signed-up members, allowing you to organize your favourite ARKive images and videos and share them with friends.
Terms and Conditions of Use of Materials
Copyright in this website and materials contained on this website (Material) belongs to Wildscreen or its licensors.
Visitors to this website (End Users) are entitled to:
- view the contents of, and Material on, the website;
- download and retain copies of the Material on their personal systems in digital form in low resolution for their own personal use;
- teachers, lecturers and students may incorporate the Material in their educational material (including, but not limited to, their lesson plans, presentations, worksheets and projects) in hard copy and digital format for use within a registered educational establishment, provided that the integrity of the Material is maintained and that copyright ownership and authorship is appropriately acknowledged by the End User.
End Users shall not copy or otherwise extract, alter or manipulate Material other than as permitted in these Terms and Conditions of Use of Materials.
Additional use of flagged material
Green flagged material
Certain Material on this website (Licence 4 Material) displays a green flag next to the Material and is available for not-for-profit conservation or educational use. This material may be used by End Users, who are individuals or organisations that are in our opinion not-for-profit, for their not-for-profit conservation or not-for-profit educational purposes. Low resolution, watermarked images may be copied from this website by such End Users for such purposes. If you require high resolution or non-watermarked versions of the Material, please contact Wildscreen with details of your proposed use.
Creative commons material
Certain Material on this website has been licensed to Wildscreen under a Creative Commons Licence. These images are clearly marked with the Creative Commons buttons and may be used by End Users only in the way allowed by the specific Creative Commons Licence under which they have been submitted. Please see http://creativecommons.org for details.
Any other use
Please contact the copyright owners directly (copyright and contact details are shown for each media item) to negotiate terms and conditions for any use of Material other than those expressly permitted above. Please note that many of the contributors to ARKive are commercial operators and may request a fee for such use.
Save as permitted above, no person or organisation is permitted to incorporate any copyright material from this website into any other work or publication in any format (this includes but is not limited to: websites, Apps, CDs, DVDs, intranets, extranets, signage, digital communications or on printed materials for external or other distribution). Use of the Material for promotional, administrative or for-profit purposes is not permitted.