The prions () or whalebirds are small
petrel
Petrels are tube-nosed seabirds in the bird order Procellariiformes.
Description
The common name does not indicate relationship beyond that point, as "petrels" occur in three of the four families within that group (all except the albatross f ...
s in the
genera
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...
''
Pachyptila'' and ''
Halobaena
The blue petrel (''Halobaena caerulea'') is a small seabird in the shearwater and petrel family, Procellariidae. This small petrel is the only member of the genus ''Halobaena'', but is closely allied to the prions. It is distributed across the ...
''. They form one of the four groups within the
Procellariidae
The family Procellariidae is a group of seabirds that comprises the fulmarine petrels, the gadfly petrels, the diving petrels, the prions, and the shearwaters. This family is part of the bird order Procellariiformes (or tubenoses), which als ...
along with the
gadfly petrel
The gadfly petrels or ''Pterodroma'' are a genus of about 35 species of petrels, part of the seabird order Procellariiformes. The gadfly petrels are named for their speedy weaving flight, as if evading gadflies ( horseflies). The flight action is ...
s,
shearwater
Shearwaters are medium-sized long-winged seabirds in the petrel family Procellariidae. They have a global marine distribution, but are most common in temperate and cold waters, and are pelagic outside the breeding season.
Description
These tub ...
s and
fulmarine petrels. The name comes from the Greek ', meaning "
saw", a reference of the serrated edges of the birds' saw-like
bill
Bill(s) may refer to:
Common meanings
* Banknote, paper cash (especially in the United States)
* Bill (law), a proposed law put before a legislature
* Invoice, commercial document issued by a seller to a buyer
* Bill, a bird or animal's beak
Pla ...
.
They are found in the
Southern Ocean
The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. With a size of , it is regarded as the second-smal ...
and breed on a number of
subantarctic
The sub-Antarctic zone is a region in the Southern Hemisphere, located immediately north of the Antarctic region. This translates roughly to a latitude of between 46° and 60° south of the Equator. The subantarctic region includes many islands ...
islands. Prions grow long, and have blue-grey upper parts and white underparts. Three species of prion have flattened bills with a fringe of
lamellae
Lamella (plural lamellae) means a small plate or flake in Latin, and in English may refer to:
Biology
* Lamella (mycology), a papery rib beneath a mushroom cap
* Lamella (botany)
* Lamella (surface anatomy), a plate-like structure in an animal
* ...
that act as
strainers
A sieve, fine mesh strainer, or sift, is a device for separation process, separating wanted elements from unwanted material or for controlling the particle size distribution of a sample, using a screen such as a warp and weft, woven mesh or n ...
for
zooplankton
Zooplankton are the animal component of the planktonic community ("zoo" comes from the Greek word for ''animal''). Plankton are aquatic organisms that are unable to swim effectively against currents, and consequently drift or are carried along by ...
.
[Maynard, B. J. (2003)] All prions are marine and feed on small
crustacea
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group c ...
such as
copepod
Copepods (; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat. Some species are planktonic (inhabiting sea waters), some are benthic (living on the ocean floor), a number of species have ...
s,
ostracod
Ostracods, or ostracodes, are a class of the Crustacea (class Ostracoda), sometimes known as seed shrimp. Some 70,000 species (only 13,000 of which are extant) have been identified, grouped into several orders. They are small crustaceans, typic ...
s,
decapods, and
krill
Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name "krill" comes from the Norwegian word ', meaning "small fry of fish", which is also often attributed to species of fish.
Krill are consi ...
, as well as some
fish
Fish are Aquatic animal, aquatic, craniate, gill-bearing animals that lack Limb (anatomy), limbs with Digit (anatomy), digits. Included in this definition are the living hagfish, lampreys, and Chondrichthyes, cartilaginous and bony fish as we ...
such as
myctophid
Lanternfishes (or myctophids, from the Greek μυκτήρ ''myktḗr'', "nose" and ''ophis'', "serpent") are small mesopelagic fish of the large family Myctophidae. One of two families in the order Myctophiformes, the Myctophidae are represent ...
s and
nototheniid
: ''In some scientific literature, the term "cod icefish" is used to identify members of this family. This should not be confused with the term "icefish," which refers to the "white-blooded" fishes of the family Channichthyidae. See Icefish (disam ...
s.
List of species
* ''Pachyptila''
** ''Pachyptila turtur'',
fairy prion
The fairy prion (''Pachyptila turtur'') is a small seabird with the standard prion plumage of blue-grey upperparts with a prominent dark "M" marking and white underneath. The sexes are alike. This is a small prion of the low subantarctic and sub ...
** ''Pachyptila belcheri'',
slender-billed prion
The slender-billed prion (''Pachyptila belcheri'') or thin-billed prion, is a species of petrel, a seabird in the family Procellariidae. It is found in the southern oceans.
Taxonomy
The slender-billed prion was species description, formally ...
** ''Pachyptila crassirostris'',
fulmar prion
The fulmar prion (''Pachyptila crassirostris'') is a species of seabird in the family Procellariidae, found in the southern oceans.
Etymology
Its common name "prion" (not to be confused with the misfolded proteins of the same name) means "saw" ...
** ''Pachyptila vittata'',
broad-billed prion
** ''Pachyptila desolata'',
Antarctic prion
The Antarctic prion (''Pachyptila desolata'') also known as the dove prion, or totorore in Māori, is the largest of the prions, a genus of small petrels of the Southern Ocean.
Taxonomy
The Antarctic prion was formally described in 1789 by ...
** ''Pachyptila salvini'',
Salvin's prion
* ''Halobaena''
** ''Halobaena caerulea'',
blue petrel
The blue petrel (''Halobaena caerulea'') is a small seabird in the shearwater and petrel family, Procellariidae. This small petrel is the only member of the genus ''Halobaena'', but is closely allied to the prions. It is distributed across the So ...
In addition,
fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
remains of some hitherto undescribed prehistoric species have been found. The oldest comes from the
Late Miocene
The Late Miocene (also known as Upper Miocene) is a sub-epoch of the Miocene Epoch made up of two stages. The Tortonian and Messinian stages comprise the Late Miocene sub-epoch, which lasted from 11.63 Ma (million years ago) to 5.333 Ma.
The ...
(
Tortonian
The Tortonian is in the geologic time scale an age or stage of the late Miocene that spans the time between 11.608 ± 0.005 Ma and 7.246 ± 0.005 Ma (million years ago). It follows the Serravallian and is followed by the Messinian.
The Torto ...
, some 7 to 12 million years ago) of the
Bahía Inglesa Formation in
Chile
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the eas ...
.
Footnotes
References
*
*Cherel, Y., Bocher, P., De Broyer, C., Hobson, K.A., (2002) "Food and feeding ecology of the sympatric thin-billed ''Pachyptila belcheri'' and Antarctic ''P. desolata'' prions at Iles Kerguelen, Southern Indian Ocean" ''Marine Ecology Progress Series'' 228: 263–28
*
External links
Antarctic prion homes-in on their life mate through smell
{{DEFAULTSORT:Prion (Bird)
Pachyptila, *
Bird common names
Extant Tortonian first appearances