Top 10 Species Groups in Global Aquaculture 2017
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Atlantic Salmon Alert
ALERT FOR ATLANTIC SALMON IN SOUTHEAST ALASKA WATERS Please report any observations of this non-native species to the nearest ADF&G office. Over the past few years, ADF&G has verified harvests of Atlantic salmon in Southeast Alaska salt waters. Atlantic salmon are not native to the Pacific Ocean; they are raised in areas along the West Coast outside of Alaska, and their presence in Southeast Alaska waters is biologically undesirable. Anglers have reported catching Atlantic salmon in several of Southeast Alaska's freshwater systems. Alaska sport fishing regulations do not limit harvest of Atlantic salmon, but if you catch one, you can help us determine their status by bringing the entire fish to the nearest ADF&G office for biological sampling. The illustrations below will help you distinguish Atlantic salmon from native Alaska species. Irregular-shaped spots on back, dorsal fin, Small black spots Uniform spots on tail Steelhead Trout King Salmon and tail Silver Short head Square tail Small eye tail Slender lateral Thick caudal 8-12 anal fin rays Wide caudal Black mouth with profile black gums 13-19 anal fin rays Photograph courtesy of Washington Department Washington Photograph courtesy of Wildlife. of Fish and Atlantic Salmon Black x-shaped No spots on tail Caudal is slender spots above lateral or “pinched” line, large scales Large black spots on gill May, or may cover not, have spots on tail Upper lip does not Spots on tail extend past rear of 8-12 anal fin Body tapered at head and tail eye rays Tydingco. Troy Atlantic salmon photographs -
Aquaculture I
AQUACULTURE I 4. Week HIsToRy of aquaculture WEEkLy TOPICs Week Topics 1. Week What Is aquaculture? 2. Week Importance of aquaculture 3. Week Aquaculture: AnImAL pRoTEIn 4. Week HIsToRy of aquaculture 5. Week oRgAnIsation of aquaculture 6. Week Characteristics of aquaculture 7. Week pond culture 8. Week In static freshwater ponds 9. Week In brackIsH-water ponds 10. Week RUnnIng water culture 11. Week Culture In RE-circulatoRy systems (RAs) 12. Week Aquaculture In raceways, cagEs, And EnCLosures 13. Week monoculture And poLyculture 14. Week RecenT AdvAnces In Aquaculture Aquaculture consists in farming aquatic organisms. Around 500 BCE, the Romans farmed oysters and fish in Mediterranean lagoons, whereas freshwater aquaculture developed empirically some 1000 years earlier in China. Farming carp in ponds led to the complete domestication of this species in the Middle Ages, which is also when mussel farming began, following a technique that remained largely unchanged until the 20th century. https://www.alimentarium.org/en/knowledge/history-aquaculture Farming in ponds through the ages The earliest evidence of fish farming dates back to before 1000 BCE in China. The Zhou dynasty (1112-221 BCE), then the politician Fan Li, around 500 BCE, were the first to describe carp, a symbol of good luck and fortune, as being farmed for food. During the Tang dynasty, around 618, the Emperor Li, whose name means ‘carp’, forbade farming the fish that bore his name. Farmers then turned their attention to similar fish in the Cyprinidae family and developed the first form of polyculture. Liquid manure from livestock farming was also used to stimulate algae growth in ponds and make it more nutritious. -
Thailand's Shrimp Culture Growing
Foreign Fishery Developments BURMA ':.. VIET ,' . .' NAM LAOS .............. Thailand's Shrimp ...... Culture Growing THAI LAND ,... ~samut Sangkhram :. ~amut Sakorn Pond cultivation ofblacktigerprawns, khlaarea. Songkhla's National Institute '. \ \ Bangkok........· Penaeus monodon, has brought sweep ofCoastal Aquaculture (NICA) has pro , ••~ Samut prokan ing economic change over the last2 years vided the technological foundation for the to the coastal areas of Songkhla and establishment of shrimp culture in this Nakhon Si Thammarat on the Malaysian area. Since 1982, NICA has operated a Peninsula (Fig. 1). Large, vertically inte large shrimp hatchery where wild brood grated aquaculture companies and small stock are reared on high-quality feeds in .... Gulf of () VIET scale rice farmers alike have invested optimum water temperature and salinity NAM heavily in the transformation of paddy conditions. The initial buyers ofNICA' s Thailand fields into semi-intensive ponds for shrimp postlarvae (pI) were small-scale Nakhon Si Thammarat shrimp raising. Theyhave alsodeveloped shrimp farmers surrounding Songkhla • Hua Sai Songkhla an impressive infrastructure ofelectrical Lake. .. Hot Yai and water supplies, feeder roads, shrimp Andaman hatcheries, shrimp nurseries, feed mills, Background Sea cold storage, and processing plants. Thailand's shrimp culture industry is Located within an hour's drive ofSong the fastest growing in Southeast Asia. In khla's new deep-waterport, the burgeon only 5 years, Thailand has outstripped its Figure 1.-Thailand and its major shrimp ing shrimp industry will have direct competitors to become the region's num culture area. access to international markets. Despite ber one producer. Thai shrimp harvests a price slump since May 1989, expansion in 1988 reached 55,000 metric tons (t), onall fronts-production, processingand a 320 percent increase over the 13,000 t marketing-continues at a feverish pace. -
Page 1 F Fish Pathology, 46 (3), 87–90, 2011. 9 © 2011 the Japanese
魚病研究 Fish Pathology, 46 (3), 87–90, 2011. 9 © 2011 The Japanese Society of Fish Pathology Blood Fluke Infection of Cage 2 to 10 months (average of 6 months) fed with highly fat content fish, mainly chub mackerel Scomber japonicus, R eared Atlantic Bluefin Tuna A tla n tic mackerel S c o mber scombru s , European pil- Thunnus thynnus in chard C lupea pilchartus and round sardinella S a rd in e lla aurita. After this period, tunas are sacrificed in the Wes t Mediterranean floating cages a n d immediately commercialized fresh or frozen. R ocio Ruiz de Ybañez1, José Peñalver2, Among pathological problems reported in reared C arlos Martínez-Carrasco1, Laura del Río1, tuna, a blood fluke Cardicola forsteri (Digenea: 2 1 Aporocotylidae), has been pointed out as a significant Emilio María Dolores , Eduardo Berriatua risk of tuna health1). Initially identified in the Australian 1 and Pilar Muñoz * population of farmed southern BFT Thunnus maccoyii 2), this blood fluke was later reported in Atlantic BFT3–5), 1 Animal Health Department, University of Murcia, being the only one aporocotylid repo rte d s o fa r in th is Murcia 30100, Spain 2 species. Aporocotylids are parasites of marine and Livestock and Fishery Departmen t, Murcia 6) fre s h wate r fis h . Most species are located in the R egional Gov e rn men t, Murcia 30201, heart, bulbus arteriosus, ventral aorta or branchial ves- S p a in sels, although the cephalic or dorsal vessels are not uncommon habitats7). Once established, adult flukes (Recieved November 24, 2010) lay eggs whic h tra v e l to th e g ills where they lodge. -
Hormone-Induced Spawning of Cultured Tropical Finfishes
ADVANCES IN TROPICAL AQUACULTURE. Tahiti, Feb. 20 - March 4 1989 AQUACOP 1FREMER Acres de Colloque 9 pp. 519 F39 49 Hormone-induced spawning of cultured tropical finfishes C.L. MARTE Southeast Asian Fisheries Development Genie. Aquaculture Department, Tig- bauan, ILOILO, Philippines Abstract — Commercially important tropical freshwater and marine finfishes are commonly spawned with pituitary homogenate, human chorionic gonadotropin (HCG) and semi-purified fish gonadotropins. These preparations are often adminis- tered in two doses, a lower priming dose followed a few hours later by a higher resolving dose. Interval between the first and second injections may vary from 3 - 24 hours depending on the species. Variable doses are used even for the same species and may be due to variable potencies of the gonadotropin preparations. Synthetic analogues of luteinizing hormone-releasing hormone (LHRHa) are becoming widely used for inducing ovulation and spawning in a variety of teleosts. For marine species such as milkfish, mullet, sea bass, and rabbitfish, a single LHRHa injection or pellet implant appears to be effective. Multiple spawnings of sea bass have also been obtained following a single injection or pellet implant of a high dose of LHRHa. In a number of freshwater fishes such as the cyprinids, LHRHa alone however has limited efficacy. Standardized methods using LHRHa together with the dopamine antagonists pimozide, domperidone and reserpine have been developed for various species of carps. The technique may also be applicable for spawning marine teleosts that may not respond to LHRHa alone or where a high dose of the peptide is required. Although natural spawning is the preferred method for breeding cultivated fish, induced spawning may be necessary to control timing and synchrony of egg production for practical reasons. -
Activity and Food Choice of Piscivorous Perch (Perca Fluviatilis)
Freshwater Biology (2002) 47, 2370–2379 Activity and food choice of piscivorous perch (Perca fluviatilis) in a eutrophic shallow lake: a radio-telemetry study LENE JACOBSEN, SØREN BERG, MADS BROBERG, NIELS JEPSEN and CHRISTIAN SKOV Danish Institute for Fisheries Research, Department of Inland Fisheries, Vejlsøvej, Silkeborg, Denmark SUMMARY 1. Radio transmitters were implanted in large perch (27–37 cm) in a shallow lake in Denmark. Between 6 and 13 perch were tracked every 3 h for 24-h periods twice (summer) or once a month (winter) from August 1997 to July 1998. Activity levels were recorded as minimum distance moved per hour. 2. No significant differences in activity levels of individual fish were observed. 3. Highest activities were observed at daytime with peaks at dawn and dusk or midday. This diel pattern was most pronounced from October to April, whereas diel variations were less in the summer months, with no peaks occurring in midsummer. The general lack of activity at night supports the idea that perch is a visually oriented forager. 4. There was no significant relationship between daytime activity during the year and temperature or day length, but nighttime activity was correlated with temperature. In contrast with previous findings, activity levels varied little seasonally, except for high activity levels that occurred concomitantly with high temperatures in August. Instead, we found a significant relationship between the total distances moved per day and temperature, indicating that perch moved at the same average speed in the wintertime, but did so for shorter periods than in summer because of shorter day lengths. 5. -
Recirculating Aquaculture Systems in China-Current Application And
quac d A ul n tu a r e s e J i o r u e r h n Ying et al., Fish Aquac J 2015, 6:3 s i a F l Fisheries and Aquaculture Journal DOI: 10.4172/2150-3508.1000134 ISSN: 2150-3508 ResearchCommentary Article OpenOpen Access Access Recirculating Aquaculture Systems in China-Current Application and Prospects Liu Ying, Liu Baoliang, Shi Ce and Sun Guoxiang Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China For the past 20 years, aquaculture has seen a worldwide expansion RAS with independent intellectual property rights achieved from the and is the fastest growing food-producing sector in the world, with an experimental stage gradually turns to industrialization, large-scale average annual growth rate of 6-8%. World aquaculture has grown popularization and application. tremendously during the last sixty years from a production of less than a million tonne in the early 1950s to 90.43 million tonnes by 2012. Of Integrative stage (2007~2011): China has made considerable this production, 66.63 million tonnes, or 73.68%, was fish. Aquaculture progress in research and application of marine industrial aquaculture, is now fully comparable to marine capture fisheries when measured by and established the suitable development mode of China’s RAS. volume of output on global scale. The contribution from aquaculture During this period, many species, such as grouper, half-smooth to the world total fish production of capture and aquaculture in 2012 tongue sole, fugu, abalone, and sea cucumber were firstly cultured in reached 42.2%, up from 25.7% in 2000. -
Clean &Unclean Meats
Clean & Unclean Meats God expects all who desire to have a relationship with Him to live holy lives (Exodus 19:6; 1 Peter 1:15). The Bible says following God’s instructions regarding the meat we eat is one aspect of living a holy life (Leviticus 11:44-47). Modern research indicates that there are health benets to eating only the meat of animals approved by God and avoiding those He labels as unclean. Here is a summation of the clean (acceptable to eat) and unclean (not acceptable to eat) animals found in Leviticus 11 and Deuteronomy 14. For further explanation, see the LifeHopeandTruth.com article “Clean and Unclean Animals.” BIRDS CLEAN (Eggs of these birds are also clean) Chicken Prairie chicken Dove Ptarmigan Duck Quail Goose Sage grouse (sagehen) Grouse Sparrow (and all other Guinea fowl songbirds; but not those of Partridge the corvid family) Peafowl (peacock) Swan (the KJV translation of “swan” is a mistranslation) Pheasant Teal Pigeon Turkey BIRDS UNCLEAN Leviticus 11:13-19 (Eggs of these birds are also unclean) All birds of prey Cormorant (raptors) including: Crane Buzzard Crow (and all Condor other corvids) Eagle Cuckoo Ostrich Falcon Egret Parrot Kite Flamingo Pelican Hawk Glede Penguin Osprey Grosbeak Plover Owl Gull Raven Vulture Heron Roadrunner Lapwing Stork Other birds including: Loon Swallow Albatross Magpie Swi Bat Martin Water hen Bittern Ossifrage Woodpecker ANIMALS CLEAN Leviticus 11:3; Deuteronomy 14:4-6 (Milk from these animals is also clean) Addax Hart Antelope Hartebeest Beef (meat of domestic cattle) Hirola chews -
Fish Species of Saskatchewan
Introduction From the shallow, nutrient -rich potholes of the prairies to the clear, cool rock -lined waters of our province’s north, Saskatchewan can boast over 50,000 fish-bearing bodies of water. Indeed, water accounts for about one-eighth, or 80,000 square kilometers, of this province’s total surface area. As numerous and varied as these waterbodies are, so too are the types of fish that inhabit them. In total, Saskatchewan is home to 67 different fish species from 16 separate taxonomic families. Of these 67, 58 are native to Saskatchewan while the remaining nine represent species that have either been introduced to our waters or have naturally extended their range into the province. Approximately one-third of the fish species found within Saskatchewan can be classed as sportfish. These are the fish commonly sought out by anglers and are the best known. The remaining two-thirds can be grouped as minnow or rough-fish species. The focus of this booklet is primarily on the sportfish of Saskatchewan, but it also includes information about several rough-fish species as well. Descriptions provide information regarding the appearance of particular fish as well as habitat preferences and spawning and feeding behaviours. The individual species range maps are subject to change due to natural range extensions and recessions or because of changes in fisheries management. "...I shall stay him no longer than to wish him a rainy evening to read this following Discourse; and that, if he be an honest Angler, the east wind may never blow when he goes a -fishing." The Compleat Angler Izaak Walton, 1593-1683 This booklet was originally published by the Saskatchewan Watershed Authority with funds generated from the sale of angling licences and made available through the FISH AND WILDLIFE DEVELOPMENT FUND. -
Chinese Fish Price Report Issue 2/2020 Issue 2/2020 Chinese Fish Price Report
Chinese Fish Price Report Issue 2/2020 Issue 2/2020 Chinese Fish Price Report The Chinese Fish Price Report Editorial Board Editor in Chief Audun Lem Marcio Castro de Souza John Ryder Marcio Castro de Souza Contributing Editors Coordinator Maria Catalano Weiwei Wang Helga Josupeit William Griffin Contributing Partner Graphic Designer China Aquatic Products Processing and Alessia Capasso Marketing Alliance (CAPPMA) EDITORIAL OFFICE GLOBEFISH Products, Trade and Marketing Branch (NFIM) Fisheries Division, Food and Agriculture Organization of the United Nations Viale delle Terme di Caracalla 00153 Rome, Italy Tel. +39 06 5705 57227 E-mail: [email protected] www.globefish.org REGIONAL OFFICES Latin America, Caribbean Africa Arab Countries INFOPESCA, Casilla de Correo 7086, INFOPÊCHE, BP 1747 Abidjan 01, INFOSAMAK, 71, Boulevard Rahal, Julio Herrea y Obes 1296, 11200 Côte d’Ivoire El Meskini Casablanda 20 000, Morocco Montevideo, Uruguay Tel: (225) 20 21 31 98/20 21 57 75 Tel: (212) 522540856 Tel: (598) 2 9028701/29028702 E-mail: [email protected] Fax: (212) 522540855 Fax: (598) 2 9030501 [email protected] E-mail: [email protected] E-mail: [email protected] Website: www.infopeche.ci [email protected] Website: www.infopesca.org Website: www.infosamak.org Europe Asia China Eurofish, H.C. Andersens Boulevard 44-46, INFOFISH INFOYU, Room 901, No 18, Maizidian street, 1553 Copenhagen V, Denmark 1st Floor, Wisma LKIM Jalan Desaria Chaoyang District, Beijing 100125, China Tel: (+45) 333777dd Pulau Meranti, 47120 Puchong, Selangor DE -
Northern Pike Esox Lucius ILLINOIS RANGE
northern pike Esox lucius Kingdom: Animalia FEATURES Phylum: Chordata The northern pike's average life span is eight to 10 Class: Osteichthyes years. The average weight is two pounds. It may Order: Esociformes attain a maximum length of 53 inches. The fins are rounded, and all except the pectoral fins have dark Family: Esocidae spots. Scales are present on the cheek and half of ILLINOIS STATUS the gill cover. The eyes are yellow. The long, green body has yellow spots on the sides. The belly is common, native white to dark yellow. The duckbill-shaped snout is easily seen. BEHAVIORS The northern pike lives in lakes, rivers and marshes. It prefers water without strong currents and with many plants. This fish reaches maturity at age two to three years. Spawning occurs in March. The female deposits up to 150,000 eggs that are scattered in marshy areas or other shallow water areas. Eggs hatch in 12-14 days. This fish eats fishes, insects, crayfish, frogs and reptiles. ILLINOIS RANGE © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources. close up of head close up of side © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources. © Engbretson Underwater Photography adult Aquatic Habitats lakes, ponds and reservoirs; rivers and streams; marshes Woodland Habitats none Prairie and Edge Habitats none © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources.. -
Gulf Council Aquaculture Faqs
Gulf of Mexico Fishery Management Council Aquaculture Fishery Management Plan Frequently Asked Questions What is offshore aquaculture? Offshore aquaculture is the rearing of aquatic organisms in controlled environments (e.g., cages or net pens) in federally managed areas of the ocean. Federally managed areas of the Gulf of Mexico begin where state jurisdiction ends and extend 200 miles offshore, to the outer limit of the U.S. Exclusive Economic Zone (EEZ). Why conduct aquaculture offshore? Offshore aquaculture is desirable for several reasons. First, there are fewer competing uses (e.g., fishing and recreation) farther from shore. Second, the deeper water makes it a desirable location with more stable water quality characteristics for rearing fish and shellfish. The stronger waterflows offshore also mitigate environmental effects such as nutrient and organic loading. Are there currently any offshore aquaculture operations in federal waters of the United States? Currently there are no commercial finfish offshore aquaculture operations in U.S. federal waters. There are currently 25 permit holders for live rock aquaculture in the EEZ. There are also several aquaculture operations conducting research and commercial production in state waters, off the coasts of California, New Hampshire, Hawaii, Washington, Maine, and Florida. Why did the Gulf of Mexico Fishery Management Council develop a Fishery Management Plan (FMP) for regulating offshore marine aquaculture in the Gulf of Mexico? The current Federal permitting process for offshore aquaculture is of limited duration and is not intended for the large-scale production of fish, making commercial aquaculture in federal waters impracticable at this time. Offshore aquaculture could help meet consumers’ growing demand for seafood with high quality local supply, create jobs in coastal communities, help maintain working waterfronts, and reduce the nation’s dependence on seafood imports.