Overview
Comprehensive Description
Biology
Holotype taken from a depth between 388 and 412 m (Ref. 26282). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
-
McEachran, J.D. and K.A. Dunn 1998 Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
http://www.fishbase.org/references/FBRefSummary.php?id=27314&speccode=10121
© FishBase
Source:
FishBase
Trusted
Distribution
Western Central Atlantic: known from the type locality, off northwestern part of Little Bahama Bank, Bahamas.
-
Eschmeyer, W.N. (ed.) 1998 Catalog of fishes. Special Publication, California Academy of Sciences, San Francisco. 3 vols. 2905 p. (Ref. 26282)
http://www.fishbase.org/references/FBRefSummary.php?id=26282&speccode=52950
© FishBase
Source:
FishBase
Trusted
Range Description
Western central Atlantic: recorded from Bahamas and southern Florida (McEachran and de Carvalho 2002).
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
Trusted
Physical Description
Type Information
Holotype for Raja bahamensis
Catalog Number: USNM 198034
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Unknown
Year Collected: 1961
Locality: N. Atlantic: Off Great Abaco, Abaco, Bahama Islands, Bahamas, Bahamian Archipelago, Atlantic
Depth (m): 411
Vessel: Silver Bay
Catalog Number: USNM 198034
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Unknown
Year Collected: 1961
Locality: N. Atlantic: Off Great Abaco, Abaco, Bahama Islands, Bahamas, Bahamian Archipelago, Atlantic
Depth (m): 411
Vessel: Silver Bay
- Holotype:
© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Trusted
Ecology
Habitat
Environment
bathydemersal; marine; depth range 388 - 412 m (Ref. 26282)
-
Eschmeyer, W.N. (ed.) 1998 Catalog of fishes. Special Publication, California Academy of Sciences, San Francisco. 3 vols. 2905 p. (Ref. 26282)
http://www.fishbase.org/references/FBRefSummary.php?id=26282&speccode=52950
© FishBase
Source:
FishBase
Trusted
Habitat and Ecology
Habitat and Ecology
Systems
Benthic along upper slope, between 366?411 m (McEachran and de Carvalho 2002). Biology is virtually unknown, but the maximum size is reported at 54 cm total length (TL) (McEachran and de Carvalho 2002).
Systems
- Marine
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
Trusted
Depth range based on 5 specimens in 1 taxon.
Water temperature and chemistry ranges based on 5 samples.
Environmental ranges
Depth range (m): 366 - 411
Temperature range (°C): 13.472 - 16.007
Nitrate (umol/L): 12.270 - 17.745
Salinity (PPS): 35.891 - 36.216
Oxygen (ml/l): 3.349 - 4.143
Phosphate (umol/l): 0.650 - 0.958
Silicate (umol/l): 4.899 - 9.876
Graphical representation
Depth range (m): 366 - 411
Temperature range (°C): 13.472 - 16.007
Nitrate (umol/L): 12.270 - 17.745
Salinity (PPS): 35.891 - 36.216
Oxygen (ml/l): 3.349 - 4.143
Phosphate (umol/l): 0.650 - 0.958
Silicate (umol/l): 4.899 - 9.876
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Water temperature and chemistry ranges based on 5 samples.
Environmental ranges
Depth range (m): 366 - 411
Temperature range (°C): 13.472 - 16.007
Nitrate (umol/L): 12.270 - 17.745
Salinity (PPS): 35.891 - 36.216
Oxygen (ml/l): 3.349 - 4.143
Phosphate (umol/l): 0.650 - 0.958
Silicate (umol/l): 4.899 - 9.876
Graphical representation
Depth range (m): 366 - 411
Temperature range (°C): 13.472 - 16.007
Nitrate (umol/L): 12.270 - 17.745
Salinity (PPS): 35.891 - 36.216
Oxygen (ml/l): 3.349 - 4.143
Phosphate (umol/l): 0.650 - 0.958
Silicate (umol/l): 4.899 - 9.876
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Trusted
Depth: 388 - 412m.
From 388 to 412 meters.
Habitat: bathydemersal.
From 388 to 412 meters.
Habitat: bathydemersal.
© FishWise Professional
Source:
FishWise Professional
Trusted
Life History and Behavior
Life Cycle
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
-
Breder, C.M. and D.E. Rosen 1966 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205)
http://www.fishbase.org/references/FBRefSummary.php?id=205&speccode=1256
© FishBase
Source:
FishBase
Trusted
Conservation
Conservation Status
IUCN Red List Assessment
Red List Category
DD
Data Deficient
Red List Criteria
Version
3.1
Year Assessed
2009
Assessor/s
McCormack, C.
Reviewer/s
Valenti, S.V. & Musick, J.A. (Shark Red List Authority)
Contributor/s
Justification
The Bahama Skate (Raja bahamensis) rare and poorly known deepwater skate found on upper slopes of the Bahamas and southern Florida at depths of 388?411 m. Attains at least 54 cm total length, but little is known about its biology. Nothing is known about the interaction of this species with fisheries and it is not possible to assess it beyond Data Deficient at present. Its bathymetric distribution may place it beyond the range of most shrimp trawling effort at present, however, the species has a very limited range and close monitoring is required.
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
Trusted
Trends
Population
Population
Population Trend
No information available.
Population Trend
Unknown
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
Trusted
Threats
Data deficient (DD)
-
IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
http://www.fishbase.org/references/FBRefSummary.php?id=57073
© FishBase
Source:
FishBase
Trusted
Major Threats
Potential bycatch of demersal trawl fisheries, although no information is currently available, and this species? bathymetric distribution may place it below most shrimp trawling effort within its range.
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
Trusted
Management
Conservation Actions
Conservation Actions
No management or conservation efforts are currently in place. Like many deeper water species more information on biology, ecology and importance in fisheries are required to further assess status and any future conservation needs. Further surveys would benefit the collection of data on the wider range of this species.
Where taken, catches require monitoring, particularly as deepwater fisheries expand worldwide. The development and implementation of management plans (national and/or regional e.g., under the FAO International Plan of Action for the Conservation and Management of Sharks: IPOA-Sharks) are required to facilitate the conservation and management of all chondrichthyan species in the region.
Where taken, catches require monitoring, particularly as deepwater fisheries expand worldwide. The development and implementation of management plans (national and/or regional e.g., under the FAO International Plan of Action for the Conservation and Management of Sharks: IPOA-Sharks) are required to facilitate the conservation and management of all chondrichthyan species in the region.
© International Union for Conservation of Nature and Natural Resources
Source:
IUCN
Trusted
