
''Pagrus'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of marine
ray-finned fish
Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...
es belonging to the
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Sparidae
Sparidae is a family of ray-finned fishes belonging to the order Spariformes, the seabreams and porgies, although they were traditionally classified in the order Perciformes. The over 150 species are found in shallow and deep marine waters in t ...
, which includes the seabreams and porgies. These fishes are found in the Western Pacific Ocean, Atlantic Ocean and Mediterranean Sea. They are esteemed food fishes which are targeted by commercial fisheries and are grown in aquaculture.
Taxonomy
''Pagrus'' was first proposed as a genus in 1816 by the French
zoologist
Zoology ( , ) is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. Zoology is one ...
Georges Cuvier
Jean Léopold Nicolas Frédéric, baron Cuvier (23 August 1769 – 13 May 1832), known as Georges Cuvier (; ), was a French natural history, naturalist and zoology, zoologist, sometimes referred to as the "founding father of paleontology". Cuv ...
with ''Sparus pagrus'' as its
type species
In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...
by absolute
tautonymy
A tautonym is a scientific name of a species in which both parts of the name have the same spelling, such as ''Rattus rattus''. The first part of the name is the name of the genus and the second part is referred to as the ''specific epithet'' in ...
,
[ ''Sparus pagrus'' was first described by ]Carl Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...
in the 10th edition of ''Systema Naturae'' with its type locality given as the Mediterranean Sea of southern Europe. This genus is placed in the family Sparidae within the order
Order, ORDER or Orders may refer to:
* A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
...
Spariformes
Spariformes is an order of ray-finned fishes consisting of six families within the series Percomorpha.
Taxonomy
Spariformes was first used as a taxonomic term in 1860 by the Dutch physician, herpetologist and ichthyologist Pieter Bleeker. Trad ...
by the 5th edition of ''Fishes of the World
''Fishes of the World'' is a standard reference for the systematics of fishes. It was first written in 1976 by the American ichthyologist Joseph S. Nelson (1937–2011). Now in its fifth edition (2016), the work is a comprehensive overview of t ...
''. Some authorities classify this genus in the subfamily Sparinae, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae.[
]
Species
''Pagrus'' contains at least six described species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
:
*''Pagrus africanus
''Pagrus'' is a genus of marine ray-finned fishes belonging to the family Sparidae, which includes the seabreams and porgies. These fishes are found in the Western Pacific Ocean, Atlantic Ocean and Mediterranean Sea. They are esteemed food fish ...
'' ( Akazaki, 1962) (Southern common seabream)
*''Pagrus auratus
The Australasian snapper (''Pagrus auratus'') or silver seabream is a species of porgie found in coastal waters of Australia, Philippines, Indonesia, mainland China, Taiwan, Japan and New Zealand. Its distribution areas in the Northern and South ...
'' ( Forster, 1801) (Silver seabream or Australasian snapper)
*''Pagrus auriga
''Pagrus'' is a genus of marine ray-finned fishes belonging to the Family (biology), family Sparidae, which includes the seabreams and porgies. These fishes are found in the Western Pacific Ocean, Atlantic Ocean and Mediterranean Sea. They are ...
'' (Valenciennes
Valenciennes (, also , , ; ; or ; ) is a communes of France, commune in the Nord (French department), Nord Departments of France, department, Hauts-de-France, France.
It lies on the Scheldt () river. Although the city and region experienced ...
, 1843) (Redbanded seabream )
*''Pagrus caeruleostictus
''Pagrus'' is a genus of marine ray-finned fishes belonging to the family Sparidae, which includes the seabreams and porgies. These fishes are found in the Western Pacific Ocean, Atlantic Ocean and Mediterranean Sea. They are esteemed food fish ...
'' (Valenciennes, 1830) (Bluespotted seabream)
*''Pagrus major
''Pagrus major'', the red seabream, red pargo, red porgy or silver seabream, is a species of marine ray-finned fish in the family Sparidae, which includes the seabreams and porgies. This species is found in the Western Pacific Ocean. The fish ha ...
'' (Temminck
Coenraad Jacob Temminck (; 31 March 1778 – 30 January 1858) was a Dutch patrician, zoologist and museum director.
Biography
Coenraad Jacob Temminck was born on 31 March 1778 in Amsterdam in the Dutch Republic. From his father, Jacob ...
& Schlegel
Schlegel is a German occupational surname. Notable people with the surname include:
* Anthony Schlegel (born 1981), American football player
* August Wilhelm Schlegel (1767–1845), German poet, brother of Friedrich
* Brad Schlegel (born 1968), C ...
, 1843) (Red seabream )
*''Pagrus pagrus
The red porgy (''Pagrus pagrus''), also known as the common seabream or Couch's bream, is a species of marine ray-finned fish in the family Sparidae. It is found in shallow waters on either side of the Atlantic Ocean, being present on the western ...
'' (Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...
, 1758) (Common seabream or red porgy)
''Catalog of Fishes
Catalog of Fishes is a comprehensive on-line database and reference work on the scientific names of fish species and genera. It is global in its scope and is hosted by the California Academy of Sciences. It has been compiled and is continuously up ...
'' recognises five species within the genus as it classifies ''P. auratus'' in the monospecific genus
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...
''Chrysophrys
The Australasian snapper (''Pagrus auratus'') or silver seabream is a species of porgie found in coastal waters of Australia, Philippines, Indonesia, mainland China, Taiwan, Japan and New Zealand. Its distribution areas in the Northern and South ...
'' Quoy & Gaimard
Joseph Paul Gaimard (31 January 1793 – 10 December 1858) was a French naval surgeon and naturalist.
Biography
Gaimard was born at Saint-Zacharie on January 31, 1793. He studied medicine at the naval medical school in Toulon, subsequent ...
, 1824.[ This is not followed by '']FishBase
FishBase is a global species database of fish species (specifically finfish). It is the largest and most extensively accessed online database on adult finfish on the web. ''[ but is accepted by other authorities.]
Etymology
''Pagrus'' is tautonymous from ''Sparus pagrus'', the name ''pagrus'' comes from a Greek
Greek may refer to:
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group
*Greek language, a branch of the Indo-European language family
**Proto-Greek language, the assumed last common ancestor of all kno ...
word for seabreams that dates at least to the time of Aristotle
Aristotle (; 384–322 BC) was an Ancient Greek philosophy, Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, a ...
.
Characteristics
''Pagrus'' seabreams are characterised by having oblong, compressed bodies with deep heads which have rounded dorsal profiles. The rear nostril is oblong, the front nostril is a slit. The moderately protrusible mouth is small, horizontal and the end of the maxilla is overlapped by the suborbital bone. There are two rows of teeth in the jaws, the front row is made up of between 6 and 6 sharp, canine-like
In mammalian oral anatomy, the canine teeth, also called cuspids, dogteeth, eye teeth, vampire teeth, or fangs, are the relatively long, pointed teeth. In the context of the upper jaw, they are also known as ''fangs''. They can appear more fla ...
teeth with molar-like teeth to the rear of them. The margin of the preoperculum
This glossary of ichthyology is a list of definitions of terms and concepts used in ichthyology, the study of fishes.
A
B
C
...
is smooth. The dorsal fin
A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found ...
is low and is supported by 12 spines while the anal fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported o ...
is short-based and is supported by 3 short spines and 8 soft rays> The long pectoral fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish aquatic locomotion, swim. Apart from the tail or caudal fin, fish fins have no direct connection with the vertebral column ...
s are clearly longer than the pelvic fin
Pelvic fins or ventral fins are paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the other being the laterally positioned pectoral fins). The pelvic fins are homologous to the hi ...
s. The cheeks and gill cover
The operculum is a series of bones found in bony fish and Chimaera, chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding.
Anatomy
The opercular series contain ...
s are scaled but there are no scales on the snout or between the eyes and the mouth. There are between 48 and 60 scales in the lateral line
The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelia ...
and there no large blotch at its origin. The largest species in the genus is ''P. auratus'' with a maximum published total length
Fish measurement is the measuring of individual fish and various parts of their anatomies, for data used in many areas of ichthyology, including taxonomy and fishery biology.
Overall length
Standard length (SL) is the length of a fish measured f ...
of , while the smallest is ''P. africanus'' with a maximum published total length of .[
]
Distribution and habitat
''Pagrus'' seabreams are found in the Atlantic Ocean, where ''P. pagrus'' occurs on both sides of the Ocean and in the Mediterranean, while the eastern Atlantic and the Mediterranean Sea have two other native species, ''P. auriga'' and ''P. caeruleostictus''. ''P. africanus'' is found in the eastern Atlantic Ocean off West Africa. The remaining two species are found in the Western Pacific Ocean.[ However, ''P. major'' has been introduced into the Mediterranean probably as a result of escapes from ]aquaculture
Aquaculture (less commonly spelled aquiculture), also known as aquafarming, is the controlled cultivation ("farming") of aquatic organisms such as fish, crustaceans, mollusks, algae and other organisms of value such as aquatic plants (e.g. Nelu ...
. These fishes prefer hard bottoms but may be found in estuaries.[
]
Biology
''Pagrus'' seabreams are carnivores, using their crushingh molars to feed on molluscs and crustaceans but they have also been found to eat softer bodied prey such as cephalopods and fishes.[ ''P. pagrus'' and ''P. caeruleostictus'' are at least partial ]protogynous hermaphrodite
Sequential hermaphroditism (called dichogamy in botany) is one of the two types of hermaphroditism, the other type being simultaneous hermaphroditism. It occurs when the organism's sex changes at some point in its life. A sequential hermaphrodite ...
s.
Fisheries
''Pagrus'' seabreams are valued as food fishes, as well as being used to produce fish meal and fish oil, and are targeted by fisheries wherever they occur. They are also used in aquaculture in both Japan and the Mediterranean.[
]
References
{{Authority control
Marine fish genera
Eocene genus first appearances
Taxa named by Georges Cuvier
Taxonomy articles created by Polbot
Spariform fish genera