Brown mussel | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Order: | Mytilida |
Family: | Mytilidae |
Genus: | Perna |
Species: | P. perna |
Binomial name | |
Perna perna | |
Synonyms | |
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Perna perna, the brown mussel, is an economically important mussel, a bivalve mollusc belonging to the family Mytilidae. It is harvested as a food source but is also known to harbor toxins and cause damage to marine structures. It is native to the waters of Africa, Europe, and South America and was introduced in the waters of North America. [1]
Perna perna is usually 90 mm long although it can reach sizes of up to 120 mm. The mussel is easily recognized by its brown color but its identifying characteristic is the "divided posterior retractor mussel scar". Its pitted resillal ridge also differentiates the mussel from other bivalves.
Similar species include the European mussel, Mytilus galloprovincialis , and the black mussel, Choromytilus meridionalis . The European mussel is similar in shape and color to the brown mussel and shares its native habitat on the south-western coast of Africa. [2] The European mussel is also more resistant to human disturbance such as use for baits and consumption. [3] It is out-competing the brown mussel as it is more resistant to certain parasites. The black mussel has similar shape and size although it lacks the distinguishable pitted resillal ridge. [2]
The brown mussel can also be mistaken for the more famous greenish-brown species Perna viridis , as their color and shell shape can change depending on environmental conditions. [4]
The brown mussel is native to the tropical and sub-tropical regions of the Atlantic Ocean and Western Indian Ocean . It is found in waters off the west coast of Africa and the coast of South America up to the Caribbean, as well in the East Coast of Africa and Madagascar. It is accidentally introduced as an invasive species to the coast of Texas via the boat hulls and water ballasts of ships from Venezuela. [2] Its distribution include: Chile, Peru, South Africa.
The brown mussel naturally colonizes rocky shores but can also attach to submerged man-made objects such as navigation buoys, petroleum platforms and shipwrecks. [1] The adult brown mussel can tolerate a temperature range of 10 to 30 °C and a salinity range of about 15 to 50 ppt. [2] Its colonization of the hard strata improves that surface's marine ecology. The colonization increases surface area, encouraging other marine organisms such as limpets, polychaetes, barnacles, snails and algae to settle there as well. [1]
The mussel utilizes external fertilization during the spawning season between May and October although this is also reported to occur in December. The two sexes release eggs and sperm to the water during spawning to produce veliger larvae. Fifteen hours after fertilization the larvae have well-developed hinge teeth. Ten to twelve days after fertilization the larvae undergo metamorphosis where byssal threads are secreted. The larvae then settle on rocky surfaces.
The brown mussel is a filter feeder and feeds on phytoplankton, zooplankton and suspended organic materials. It is plagued by the parasite Proctoeces maculatus and an unidentified bucephalid sporocyst which castrates both sexes. On the African coastline it is preyed upon by the whelk Nucella cingulata , lobsters, octopuses, gulls and the African black oystercatcher. On the South American coastline, it provides food for Callinectes danae , Cymatium parthenopeum , Chicoreus brevifrons , Thais haemastoma , and Menippe nodifrons . [2]
Perna perna is harvested as a food source in Africa and South America. The bivalve is considered for cultivation as it can grow quickly to the commercial size of 60 to 80 mm in just 6 or 7 months. It is also well-suited to tropical and subtropical regions. However, the mussel can harbor saxitoxin from consumed dinoflagellates. Its consumption has caused outbreaks of paralytic shellfish poisoning in Venezuela. [2]
The brown mussel is known to aggregate in such large amounts that it is able to sink navigational buoys. It also coexists with the Asian green mussel in fouling water pipes and marine equipment. It is less resistant to chlorination than Perna viridis and thus easier to control. However, it is recommended that the concentration of chlorine used for chlorination be above the tolerance level of Perna viridis, the tougher of the two biofouling mussels. [1]
Mussel is the common name used for members of several families of bivalve molluscs, from saltwater and freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval.
Bivalvia, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. The class includes the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. Shipworms bore into wood, clay, or stone and live inside these substances.
The blue mussel, also known as the common mussel, is a medium-sized edible marine bivalve mollusc in the family Mytilidae, the mussels. Blue mussels are subject to commercial use and intensive aquaculture. A species with a large range, empty shells are commonly found on beaches around the world.
Rapana venosa, common name the veined rapa whelk or Asian rapa whelk, is a species of large predatory sea snail, a marine gastropod mollusc or whelk, in the family Muricidae, the rock shells.
Atrina fragilis, the fan mussel, is a species of large saltwater clam, a marine bivalve mollusc in the family Pinnidae, the pen shells.
Perna viridis, known as the Asian green mussel, is an economically important mussel, a bivalve belonging to the family Mytilidae. It is harvested for food but is also known to harbor toxins and cause damage to submerged structures such as drainage pipes. It is native in the Asia-Pacific region but has been introduced in the Caribbean, and in the waters around Japan, North America, and South America.
The Chilean mussel or Chilean blue mussel, Mytilus chilensis, is a species of blue mussel native to the coasts of Chile from Biobío Region to Cape Horn. Genomic evidence has confirmed that the native Chilean blue mussel is genetically distinct from the Northern Hemisphere M. edulis, M. galloprovincialis and M. trossulus and also genetically different from Mytilus platensis,the other species of smooth shelled mussel from South America.
Mytilus is a cosmopolitan genus of medium to large-sized edible, mainly saltwater mussels, marine bivalve molluscs in the family Mytilidae.
Ostrea lurida, common name the Olympia oyster, after Olympia, Washington in the Puget Sound area, is a species of small, edible oyster, a marine bivalve mollusk in the family Ostreidae. This species occurs on the northern Pacific coast of North America. Over the years the role of this edible species of oyster has been partly displaced by the cultivation of non-native edible oyster species.
Modiolus modiolus, common name northern horsemussel, is a species of marine bivalve mollusk in the family Mytilidae.
Choromytilus meridionalis, the black mussel, is a species of bivalve. It is a marine mollusc in the family Mytilidae. They are part of the Phylum Mollusca which is the second-largest phylum of invertebrates with around 85,000 species. In this article, we will be discussing the taxonomy, morphology, ecology, reproduction, and distribution of Choromytilus meridionalis.
The Mediterranean mussel is a species of bivalve, a marine mollusc in the family Mytilidae. It is an invasive species in many parts of the world, and also an object of aquaculture.
Perna is a genus of mussels, marine bivalve molluscs in the family Mytilidae.
Arcinella arcinella, or the Caribbean spiny jewel box clam, spiny jewel box clam, or spiny jewel box, is a species of bivalve mollusc in the family Chamidae.
Trichomya is a monotypic genus of marine bivalve molluscs in the family Mytilidae, the mussels. The only species is Trichomya hirsuta which is endemic to southern and eastern Australia. Its common names include the hairy mussel, the greenling and the kelp greenling.
Mytilus unguiculatus, common name the Korean mussel or the hard-shelled mussel, is a species of mussel, a marine bivalve mollusc in the family Mytilidae. This species is heavily exploited as a food item via mariculture in Korea and in China. It is also a typical macrofouling organism.
Modiolus barbatus, the bearded horse mussel, is a species of "horse mussel", a marine bivalve mollusc in the family Mytilidae, the mussels.
Mytella strigata is a bivalve, commonly known as the charru mussel or charrua mussel. This species was described by Sylvanus Charles Thorp Hanley based on a specimen from the Philippines. It was found in Central and South America and by Alcide d'Orbigny, a French naturalist, in 1842, where it was assigned the synonym Mytilus charruanus. They are less than an inch long (2.5 cm), and range from brown to black in color.