Tegillarca granosa: Difference between revisions

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'''Tegillarca granosa''' is a species of [[bivalve]] belonging to the family [[Arcidae]]. This species is also commonly known as the [[Blood Cockle]] or [[Blood Clam]] because of the red haemoglobin liquid inside the soft tissues. It is a popular seafood in Southeast Asia and is consumed in many other parts of the world.
{{Short description|Species of ark clam}}
{{Taxobox
| name = Tegillarca granosa
| image = Tegillarca_granosa.jpg
| image_caption = Tegillarca granosa, commonly known as the blood clam
| regnum = [[Animalia]]
| phylum = [[Mollusca]]
| classis = [[Bivalvia]]
| ordo = [[Arcida]]
| familia = [[Arcidae]]
| genus = ''[[Tegillarca]]''
| species = '''''T. granosa'''''
| binomial = ''Tegillarca granosa''
| binomial_authority = ([[Linnaeus]], 1758)
}}


== Description ==
'''''Tegillarca granosa''''', commonly known as the '''blood clam''', is a species of ark clam found in the intertidal zones of the Indo-Pacific region. It is notable for its reddish blood, which contains hemoglobin, a characteristic that is unusual among bivalve mollusks.
Tegillarca granosa is a relatively large bivalve species, with a maximum shell length of approximately 5 cm. The shell is solid and heavy, with a rounded shape and a slightly inflated appearance. The exterior of the shell is typically a dull grey or brown colour, while the interior is often a shiny white or cream colour.


== Distribution and Habitat ==
==Description==
Tegillarca granosa is widely distributed in the coastal areas of the Indo-Pacific region, including the coasts of India, Southeast Asia, Japan, and northern Australia. It inhabits intertidal zones and prefers sandy or muddy substrates. The species is tolerant of a wide range of salinities and temperatures, which contributes to its wide distribution.
''Tegillarca granosa'' has a robust, thick shell with a rounded, somewhat triangular shape. The shell surface is covered with concentric ridges and is typically white to gray in color. The interior of the shell is smooth and white. The clam's blood is red due to the presence of hemoglobin, which is rare among bivalves.


== Ecology and Behaviour ==
==Distribution and Habitat==
Tegillarca granosa is a filter feeder, extracting plankton and other small organisms from the water column. It is also known to be a deposit feeder, ingesting sediment and extracting organic matter. The species has a relatively slow growth rate and a long lifespan, with individuals known to live for up to 30 years.
''Tegillarca granosa'' is distributed widely across the Indo-Pacific region, including the coasts of [[India]], [[China]], [[Japan]], [[Korea]], and [[Southeast Asia]]. It inhabits intertidal mudflats and estuaries, where it burrows into the sediment.


== Human Use ==
==Ecology==
Tegillarca granosa is harvested for food in many parts of its range. It is a popular seafood in Southeast Asia, where it is often steamed, boiled, or used in soups. However, the species has been associated with several foodborne illnesses, due to its habit of ingesting sediment and the potential for bioaccumulation of harmful substances.
The blood clam is a filter feeder, drawing in water through its siphons and filtering out plankton and organic particles. It plays a significant role in the ecosystem by contributing to the nutrient cycle and providing a food source for predators such as birds and fish.


== Conservation ==
==Human Use==
While Tegillarca granosa is not currently listed as threatened or endangered, overharvesting and habitat degradation pose significant threats to the species. Efforts are being made to manage and conserve populations of this species, including the establishment of protected areas and the implementation of sustainable harvesting practices.
''Tegillarca granosa'' is harvested for food in many parts of Asia. It is considered a delicacy in countries like China and is often consumed raw or cooked. However, the consumption of raw blood clams has been associated with health risks due to the potential presence of pathogens such as [[Hepatitis A]] and [[Hepatitis E]] viruses.
 
==Conservation==
While ''Tegillarca granosa'' is not currently listed as endangered, overharvesting and habitat destruction pose threats to its populations. Sustainable harvesting practices and habitat conservation are important for maintaining healthy populations of this species.
 
==Gallery==
[[File:Tegillarca_granosa_shell.jpg|thumb|left|Shell of ''Tegillarca granosa'']]
[[File:Tegillarca_granosa_habitat.jpg|thumb|right|Intertidal habitat of ''Tegillarca granosa'']]
 
==Related pages==
* [[Bivalvia]]
* [[Arcidae]]
* [[Mollusca]]


[[Category:Bivalves]]
[[Category:Arcidae]]
[[Category:Arcidae]]
[[Category:Seafood]]
[[Category:Bivalves of Asia]]
{{Bivalve-stub}}
[[Category:Edible molluscs]]
{{food-stub}}
<gallery>
File:Tegillarca_granosa_(MNHN-IM-2009-2370).jpeg|Tegillarca granosa
File:Tegillarca_granosa_01.jpg|Tegillarca granosa
File:Tegillarca_granosa_02.jpg|Tegillarca granosa
File:Anhai_Bay_-_DSCF8875.JPG|Anhai Bay
File:Blood_cockle_total_production_thousand_tonnes_1950-2022.svg|Blood cockle total production (thousand tonnes) 1950-2022
File:Kkomak_(Tegillarca_granosa).jpg|Kkomak (Tegillarca granosa)
File:Kkomak_(Tegillarca_granosa)_2.jpg|Kkomak (Tegillarca granosa)
File:Kkomak-muchim.jpg|Kkomak-muchim
</gallery>

Revision as of 17:43, 18 February 2025

Species of ark clam



Tegillarca granosa, commonly known as the blood clam, is a species of ark clam found in the intertidal zones of the Indo-Pacific region. It is notable for its reddish blood, which contains hemoglobin, a characteristic that is unusual among bivalve mollusks.

Description

Tegillarca granosa has a robust, thick shell with a rounded, somewhat triangular shape. The shell surface is covered with concentric ridges and is typically white to gray in color. The interior of the shell is smooth and white. The clam's blood is red due to the presence of hemoglobin, which is rare among bivalves.

Distribution and Habitat

Tegillarca granosa is distributed widely across the Indo-Pacific region, including the coasts of India, China, Japan, Korea, and Southeast Asia. It inhabits intertidal mudflats and estuaries, where it burrows into the sediment.

Ecology

The blood clam is a filter feeder, drawing in water through its siphons and filtering out plankton and organic particles. It plays a significant role in the ecosystem by contributing to the nutrient cycle and providing a food source for predators such as birds and fish.

Human Use

Tegillarca granosa is harvested for food in many parts of Asia. It is considered a delicacy in countries like China and is often consumed raw or cooked. However, the consumption of raw blood clams has been associated with health risks due to the potential presence of pathogens such as Hepatitis A and Hepatitis E viruses.

Conservation

While Tegillarca granosa is not currently listed as endangered, overharvesting and habitat destruction pose threats to its populations. Sustainable harvesting practices and habitat conservation are important for maintaining healthy populations of this species.

Gallery

File:Tegillarca granosa shell.jpg
Shell of Tegillarca granosa
File:Tegillarca granosa habitat.jpg
Intertidal habitat of Tegillarca granosa

Related pages