Shinyrayed Pocketbook 
Shinyrayed Pocketbook
Shinyrayed Pocketbook
US FWS
More images:
Scientific Name:
Lampsilis subangulata
Group:
Clams
Status/Date Listed as Endangered:
EN-US FWS: March 16, 1998
Area(s) Where Listed As Endangered:
Alabama, Florida, Georgia
 
Advertisement
 

The shinyrayed pocketbook is a freshwater mussel found in the Chattahoochee, Chipola, and Ochlockonee Rivers of Georgia, Florida, and Alabama. Freshwater mussels are marine mollusks that are able to move slowly through the sand, gravel, or silt of their aquatic habitat by means of a muscular foot. They have a close-fitting shell that protects them from predators and drying out when high up on the shore. The average length of this mussel is about 3.3 inches, and the shell is elliptical in shape, with a rounded top. The shell surface is light yellowish-brown and decorated with bright emerald green and black rays. The inside of the shell is white. The top of the shell of males are pointier then that of females (which are more inflated).

This mussel prefers stable medium-size to large freshwater river systems for its habitat. Young mussels are born as "glochidia" (larvae) until they undergo metamorphosis into mussels. As larvae, they develop by attaching themselves to fishes for a short life as parasites. The process is further complicated because not only do the glochidia have to find a fish, but it has to be one of several fish species for the life cycle to continue. The main host fish of this species is the largemouth bass (Micropterus salmoides) and the spotted bass (Micropterus punctulatus). As mussels, they attach themselves to the river floors and feed on phytoplankton, tiny zooplankton, and organic detritus that they are able to filter from the water using specialized regions of their shells. The water is filtered over the gills and the food particles become trapped and eventually digested. To reproduce, males release sperm into the water when the current is strong enough, allowing the sperm to travel and reach the eggs inside the shells of females. The fertilized eggs then develop into glochidia and grow inside the gill of the female until released into the water. In order to completely develop as mussels the larvae must find the host fish and attach themselves to its gills.

The main cause of decline for the shinyrayed pocketbook is habitat destruction due to deforestation. They have also been affected by siltation, dredging, channelization, impoundments, pollution, and competition with the invasive zebra mussel (a non-native mussel species). The host fish have also declined, which threatens the species ability to reproduce properly. Conservation plans include protection of its remaining habitat and the continued monitoring and study of all remaining populations.




Wikipedia Article

This article is only an excerpt. If it appears incomplete or if you wish to see article references, visit the rest of its contents here.
Wikipedia Article
Copyright Notice: This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Shinyrayed pocketbook".

Featured Article

10 Unusually White Creatures You'll Probably Never See in Real Life
Creatures with albinism and leucism are beautiful and rare animals. They have all the characteristics of others of their species except they are white in color. The lack of melanin generally results in the animal looking bleached all over, appearing white or pink. It happens in many animals ranging from squirrels to whitetail deer. Here are ten incredible and rare, white-colored creatures that you'll probably never see in real life.

Read More...


Advertisement


Endangered Species of Our Planet

Donate, Adopt, Get Involved

EEC Conservation Directory
Donate

Mailing List

Would you like to receive a notice and link when the new Creature Feature is posted?

Enter your e-mail address below:

 

Fun & Games

Are you inspired by endangered animals? Check out our games and coloring pages! More to come soon.
color endangered creatures
play hangman