Haliotis cracherodii: Difference between revisions

Black abalone
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Archaeogastropoda
Family:	Haliotidae
Genus:	Haliotis
Species:	H. cracherodii
Binomial name
	Haliotis cracherodii; Leach, 1814
Synonyms
	Haliotis expansa (Talmadge, 1954); Haliotis imperforata (Dall, 1919); Haliotis rosea (Orcutt, 1900); Haliotis splendidula (Williamson, 1893);

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Revision as of 11:27, 3 January 2007

The black abalone, Haliotis cracherodii, used to be the most abundant aquatic mollusk on the Pacific Coast of North America. Now, through intense fishing and the Withering Syndrome, it has much declined in population.

Natural predators are sea otters, sea stars, fishes and octopuses.

There is a subspecies: Haliotis cracherodii californiensis, to be found around Guadalupe Island, off Baja California (Mexico).

Length

The black abalone's length can reach a maximum of 20 cm.

Description

The exterior shell is smoother than most abalones. It has a dark brown, dark green or almost black color. The interior of the shell is pink and green iridescent. The tentacles are black. There are usually five to seven open shell holes.

Habitat

Black abalones cling to rocky surfaces in high intertidal zones, up to 6 m deep.

Range

Abalones can normally be found along the West Coast of the United States, from Oregon to Baja California.

Diseases

Black abalones are subject to a chronic, progressive and lethal disease: the Withering Syndrome or abalone wasting disease, leading to mass mortality. This caused the closure in California of fishing for black abalones in 1993.

Reference

Oliver APH The Hamlyn Guide to Shells of the World, ISBN 0-600-56577-7

External links

@@ Line 1: / Line 1: @@
 {{Taxobox
 | color = pink
-| name = Black Abalone
+| name = Black abalone
 | image = Haliotis cracherodii.JPG
 | image_width = 240px
@@ Line 13: / Line 13: @@
 | binomial = ''Haliotis  cracherodii''
 | binomial_authority = [[William Elford Leach|Leach]], 1814
+| synonyms =
+*''Haliotis expansa'' <small>(Talmadge, 1954)</small>
+*''Haliotis imperforata'' <small>([[W.H. Dall|Dall]], 1919)</small>
+*''Haliotis rosea'' <small>(Orcutt, 1900)</small>
+*''Haliotis splendidula'' <small>(Williamson, 1893)</small>
 }}
-The '''Black Abalone''' ''(Haliotis  cracherodii)'' used to be the most abundant aquatic mollusk on the [[Pacific Coast]] of [[North America]]. Now, through intense [[fishing]] and the [[Withering Syndrome]], it has much declined in population.
+The '''black abalone''', ''Haliotis  cracherodii'', used to be the most abundant aquatic mollusk on the [[Pacific Coast]] of [[North America]]. Now, through intense [[fishing]] and the [[Withering Syndrome]], it has much declined in population.
 Natural predators are [[sea otter]]s, [[sea star]]s, [[fish|fishes]] and [[Octopus|octopuses]].
 There is a [[subspecies]]: ''Haliotis cracherodii californiensis'', to be found around [[Guadalupe Island]], off [[Baja California]] ([[Mexico]]).
-== Scientific synonyms ==
-*''Haliotis expansa'' (Talmadge, 1954)
-*''Haliotis imperforata'' ([[W.H. Dall|Dall]], 1919)
-*''Haliotis rosea'' (Orcutt, 1900)
-*''Haliotis splendidula'' (Williamson, 1893)
 == Length ==
-The black abalone's length can reach from 7.5 cm to a maximum of 20 cm.
+The black abalone's length can reach a maximum of 20 [[centimetre|cm]].
 == Description ==
@@ Line 36: / Line 33: @@
 == Habitat ==
-Black abalones cling to rocky surfaces in high [[intertidal]] zones, up to 6 m deep.
+Black abalones cling to rocky surfaces in high [[intertidal]] zones, up to 6 [[metre|m]] deep.
 == Range ==
-Abalones can normally be found along the West Coast of the USA, from [[Oregon]] to [[Baja California]].
+Abalones can normally be found along the West Coast of the [[United States]], from [[Oregon]] to [[Baja California]].
 == Diseases ==
-Black abalones are subject to a chronic, progressive and lethal disease:  the [[Withering Syndrome]] or Abalone wasting disease, leading to mass mortality. This caused the closure in California of fishing for black abalones in 1993.
+Black abalones are subject to a chronic, progressive and lethal disease:  the [[Withering Syndrome]] or abalone wasting disease, leading to mass mortality. This caused the closure in [[California]] of fishing for black abalones in 1993.
 == Reference ==
-The Hamlyn Guide to Shells of the World, APH Oliver  ISBN 0-600-56577-7
+* Oliver APH ''The Hamlyn Guide to Shells of the World'', ISBN 0-600-56577-7
 ==External links==
-*[http://www.gastropods.com/2/Shell_1032.html Gastropods.com]
+* [http://www.gastropods.com/2/Shell_1032.html Gastropods.com]
-*[http://www.piscoweb.org/outreach/pubs/abalone.html Withering Syndrome in Black Abalone]
+* [http://www.piscoweb.org/outreach/pubs/abalone.html Withering Syndrome in Black Abalone]
 [[Category:Gastropods]]
+[[Category:Edible molluscs]]