Wednesday, 2 August 2017

Sardine (Eicosapentaenoic acid) dược liệu kháng HL60

Sardine (Eicosapentaenoic acid) dược liệu kháng HL60

From Wikipedia, the free encyclopedia
Sardines
Sardines are small epipelagic fish that sometimes migrate along the coast in large schools. They are an important forage fish for larger forms of marine life.
Global commercial capture of sardines in tonnes
reported by the FAO 1950–2009[1]
"Sardine" and "pilchard" are common names used to refer to various small, oily fish within the herring family of Clupeidae.[2] The term sardine was first used in English during the early 15th century and may come from the Mediterranean island of Sardinia, around which sardines were once abundant.[3][4]
The terms "sardine" and "pilchard" are not precise, and what is meant depends on the region. The United Kingdom's Sea Fish Industry Authority, for example, classifies sardines as young pilchards.[5] One criterion suggests fish shorter in length than 15 cm (6 in) are sardines, and larger fish are pilchards.[6] The FAO/WHOCodex standard for canned sardines cites 21 species that may be classed as sardines;[7] FishBase, a comprehensive database of information about fish, calls at least six species "pilchard", over a dozen just "sardine", and many more with the two basic names qualified by various adjectives.

Genera[edit]

Sardines occur in several genera

Species[edit]

This article is
one of a series on
Commercial fish
Blue walleye.jpg
Large pelagic
billfishbonito
mackerelsalmon
sharktuna

Forage
anchovyherring
menhadensardine
shadsprat

Demersal
codeelflatfish
pollockray
Mixed
carptilapia
[hide]Commercially significant species
GenusCommon nameScientific nameMax. lengthCommon lengthMax. massMax. age
years
Trophic
level
Fish
Base
FAOITISIUCN
status
cmincmingoz
SardinaEuropean pilchard*Sardina pilchardus(Walbaum, 1792)27.510.820.07.9153.05[8][9][10]
SardinopsSouth American pilchardSardinops sagax(Jenyns, 1842)39.515.620.07.949017252.43[11][12][13]
Japanese pilchard[note 1]Sardinops melanostictus(Schlegel, 1846)[15][16][17]
Californian pilchard[note 1]Sardinops caeruleus(Girard, 1854)[18][19][20]
southern African pilchard[note 1]Sardinops ocellatus(Pappe, 1854)[21][22][23]
SardinellaBali sardinellaSardinella lemuru(Bleeker, 1853)239.1207.9[24][25][26]
Brazilian sardinellaSardinella brasiliensis(Steindachner, 1879)3.10[27][28][29]
Japanese sardinellaSardinella zunasi(Bleeker, 1854)3.12[30][31][32]
Indian oil sardineSardinella longiceps(Valenciennes, 1847)2.41[33][34][35]Least Concern
[36]
Goldstripe sardinellaSardinella gibbosa(Bleeker, 1849)2.85[37][38][39]
Round sardinellaSardinella aurita(Valenciennes, 1847)3.40[40][41][42]
Madeiran sardinellaSardinella maderensis(Lowe, 1839)3.20[43][44][45]
DussumieriaRainbow sardineDussumieria acuta(Valenciennes, 1847)207.93.40[46][47][48]
The European pilchardSardina pilchardus
In the 1980s the South American pilchardSardinops sagax, was the most intensively fished species of sardine. Some major stocks declined precipitously in the 1990s (see chart below).
  1. Jump up to:a b c There are four distinct stocks in the genus Sardinops, widely separated by geography. The FAO treats these stocks as separate species, while FishBase treats them as one species, Sardinops sagax.[14]

Feeding[edit]

Sardines feed almost exclusively on zooplankton, "animal plankton", and will congregate wherever this is abundant.

Fisheries[edit]

Global capture of sardines in tonnes reported by the FAO
↑  Sardines of the Sardinops genus, 1950–2010[1]
↑  Sardines not of the Sardinops genus, 1950–2010[1]
Typically, sardines are caught with encircling nets, particularly purse seines. Many modifications of encircling nets are used, including traps or weirs. The latter are stationary enclosures composed of stakes into which schools of sardines are diverted as they swim along the coast. The fish are caught mainly at night, when they approach the surface to feed on plankton. After harvesting, the fish are submerged in brine while they are transported to shore.
Sardines are commercially fished for a variety of uses: for bait; for immediate consumption; for drying, salting, or smoking; and for reduction into fish meal or oil. The chief use of sardines is for human consumption, but fish meal is used as animal feed, while sardine oil has many uses, including the manufacture of paintvarnish and linoleum.
French sardine seiner

As food[edit]

Exhibit of a woman canning sardines at the Maine State Museum in Augusta; sardines are a component of the economy of Maine.
Sardines are commonly consumed by human beings. Fresh sardines are often grilled, pickled or smoked, or preserved in cans.
Sardines are rich in vitamins and minerals.[49] A small serving of sardines once a day can provide 13 percent of vitamin B2; roughly one-quarter of niacin; and about 150 percent of the recommended daily value of vitamin B12. All B vitamins help to support proper nervous system function and are used for energy metabolism, or converting food into energy.[50] Also, sardines are high in the major minerals such as phosphoruscalciumpotassium, and some trace minerals including iron and selenium. Sardines are also a natural source of marine omega-3 fatty acids, which may reduce the occurrence of cardiovascular disease.[51]Recent studies suggest that regular consumption of omega-3 fatty acids reduces the likelihood of developing Alzheimer's disease.[52] These fatty acids can also lower blood sugar levels.[53] They are also a good source of vitamin D,[54] calcium, vitamin B12,[55][56] and protein.
Because they are low in the food chain, sardines are very low in contaminants such as mercury, relative to other fish commonly eaten by humans.[57]

History[edit]

File:Sardines.ogv
Sardines use body-caudal fin locomotion to swim, and streamlinetheir body by holding their other fins flat against the body.
Pilchard fishing and processing became a thriving industry in Cornwall (UK) from around 1750 to around 1880, after which it went into decline. Catches varied from year to year and, in 1871 the catch was 47,000 hogsheads while in 1877 only 9,477 hogsheads. A hogshead contained 2,300 to 4,000 pilchards and, when filled with pressed pilchards, weighed 476 lbs. The pilchards were mostly exported to Roman Catholic countries such as Italy and Spain where they are known as ″fermades″. The chief market for the oil was Bristol where it is used on machinery.[58] As of 2007, however, stocks are improving[why?].[59] Since 1997, sardines from Cornwall have been sold as "Cornish sardines", and since March 2010, under EU law, Cornish sardines have Protected Geographical Status.[60] The industry has featured in numerous works of art, particularly by Stanhope Forbesand other Newlyn School artists.
In the United States, the sardine canning industry peaked in the 1950s. Since then, the industry has been on the decline. The canneries in Monterey Bay, in what was known as Cannery Row, failed in the mid-1950s. The last large sardine cannery in the United States, the Stinson Seafood plant in Prospect HarborMaine, closed its doors on 15 April 2010 after 135 years in operation.[61]
The traditional "Toast to Pilchards" refers to the lucrative export of the fish to Catholic Europe:
Here's health to the Pope, may he live to repent
 And add just six months to the term of his Lent
 And tell all his vassals from Rome to the Poles,
 There's nothing like pilchards for saving their souls![62]

In popular culture[edit]

The close packing of sardines in the can has led to the metaphorical use of their name in describing any situation where people or objects are crowded together, for instance, in a bus or subway car. This phenomenon is satirised by British poet and comic Spike Milligan in his poem 'Sardine Submarine'. In the poem, a sardine's mother describes the unfamiliar sight of a submarine to its offspring as 'a tin full of people'.[63]
'Sardines' is also the name of a children's game, where one person hides and each successive person who finds the hidden one packs into the same space until there is only one left out, who becomes the next one to hide.[64]

Menhaden (Eicosapentaenoic acid) dược liệu kháng HL60

Menhaden (Eicosapentaenoic acid) dược liệu kháng HL60

From Wikipedia, the free encyclopedia
Menhaden
Gulf menhadenBrevoortia patronus
Atlantic menhadenBrevoortia tyrannus
Pacific menhadenEthmidium maculatum
Menhaden, also known as mossbunker and bunker, are forage fish of the genera Brevoortia and Ethmidium, two genera of marine fish in the family ClupeidaeMenhaden is a blend of poghaden (pogy for short) and an Algonquian word akin to Narragansett munnawhatteaûg, derived from munnohquohteau ‘he fertilizes’, referring to their use of the fish as fertilizer.[1] It is generally thought that Pilgrims were advised by Tisquantum (also known as Squanto) to plant menhaden with their crops.[1]

Description[edit]

Menhaden are flat, have soft flesh, and a deeply forked tail. They rarely exceed 15 inches (38 cm) in length, and have a varied weight range. Gulf menhaden and Atlantic menhaden are small oily-fleshed fish, bright silver, and characterized by a series of smaller spots behind the main, Humeral spot. They tend to have larger scales than Yellowfin menhaden and Finescale menhaden. In addition, Yellowfin menhaden tail rays are a bright yellow in contrast to those of the Atlantic menhaden.

Taxonomy[edit]

This article is
one of a series on
Commercial fish
Blue walleye.jpg
Large pelagic
billfishbonito
mackerelsalmon
sharktuna

Forage
anchovyherring
menhadensardine
shadsprat

Demersal
codeelflatfish
pollockray
Mixed
carptilapia
Recent taxonomic work using DNA comparisons have organized the North American menhadens into large-scaled (Gulf and Atlantic menhaden) and small-scaled (Finescale and Yellowfin menhaden) designations.[2]
The menhaden consist of two genera and seven species:

Distribution[edit]

Ecology[edit]

Menhaden travel in large, slow-moving, and tightly-packed schools with open mouths. Filter feeders typically take into their open mouths "materials in the same proportions as they occur in ambient waters".[3] Menhaden have two main sources of food: phytoplankton and zooplankton. A menhaden’s diet varies considerably over the course of its lifetime, and is directly related to its size. The smallest menhaden, typically those under one year old, eat primarily phytoplankton. After that age, adult menhaden gradually shift to a diet comprised almost exclusively of zooplankton.[4]
Menhaden are omnivorous filter feeders, feeding by straining plankton and algae from water. Along with oysters, which filter water on the sea bed, menhaden play a key role in the food chain in estuaries and bays.[5] Atlantic menhaden are an important link between plankton and upper level predators. Because of their filter feeding abilities, "menhaden consume and redistribute a significant amount of energy within and between Chesapeake Bay and other estuaries, and the coastal ocean."[6]Because they play this role, and their abundance, menhaden are an invaluable prey species for many predatory fish, such as striped bassbluefishmackerelfloundertunadrums, and sharks. They are also a very important food source for many birds, including egretsospreysseagullsnorthern gannetspelicans, and herons.
Purse seine boats encircling a school of menhaden
In 2012 the Atlantic States Marine Fisheries Commission declared that the Atlantic menhaden was depleted due to overfishing. The decision was driven by issues with water quality in the Chesapeake Bay and failing efforts to re-introduce predator species, due to lack of menhaden on which they could feed.[1]

Human intake[edit]

Menhaden are not used directly for food. They are processed into fish oil and fish meal that are used as food ingredientsanimal feed, and dietary supplements.[5] It has a high omega-3 fat content. Fish oil made from menhaden also is used as a raw material for products such as lipstick.[7]

Fisheries[edit]

Global commercial capture of menhaden in million tonnes 1950–2010[8]
Capture of menhaden in 2010 reported by the FAO[8]
According to James Kirkley of the Virginia Institute of Marine Science (VIMS), there are two established commercial fisheries for menhaden. The first is known as a reduction fishery. The second is known as a bait fishery, which harvests menhaden for the use of both commercial and recreational fishermen. Commercial fishermen, especially crabbers in the Chesapeake Bay area, use menhaden to bait their traps or hooks. The recreational fisherman use ground menhaden chum as a fish attractant, and whole fish as bait. The total harvest is approximately 500 million fish per year.[7] Atlantic menhaden are harvested using purse seines.
Omega Protein Inc., Houston, Texas, with operations in VirginiaLouisiana, and Mississippi takes 90% of the national total menhaden harvest.[7] In December 2012, in the face of the depletion of Atlantic menhaden, the Atlantic States Marine Fisheries Commission imposed a limit on Omega's operations, "capping the total annual commercial catch at 170,800 metric tons, about 80 percent of the average harvest from the last three years."[9]