Aug 23 2012
Credit: Gabriel Salvo (Chile)
This photo was taken in the fish market “Feskekorka”, Gotemburg (Sweden). Fish shown in the display includes salmon, merluza (South Pacific hake) and monkfish.
Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or more. This is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=5400
Aug 22 2012
Credit: Glenda Vélez Calabria (Colombia)
Las fotografías las tomé el 11 de agosto, 2012 a eso de las 6 am en el mercado público de Santa Marta (Colombia). (These photos were taken on 11 August, 2012 in the public market of Santa Marta (Colombia)
Las especies de que aparecen en las fotos son: (Species that appear in the photos are):
Foto 3: Picúa, sierra ó carita, camarón (great barracuda, Spanish mackarel, shrimp) Sphyraena barracuda, Scomberomorus maculatus, Pennaeus sp.
Foto 4: picúa, langosta, jurel, pargo rojo, pargo rayado (great barracuda, lobster, crevalle jack, red snapper, lane snapper) Sphyraena barracuda, Panulirus sp., Caranx hippos, Lutjanus purpureus, Lutjanus synagris
Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or more. This is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=5393
Aug 22 2012
Credit: Glenda Vélez Calabria (Colombia)
Las fotografías las tomé el 11 de agosto, 2012 a eso de las 6 am en el mercado público de Santa Marta (Colombia). (These photos were taken on 11 August, 2012 in the public market of Santa Marta (Colombia)
Las especies de que aparecen en las fotos son: (Species that appear in the photos are):
Foto 1: bagre rayado, bocachico, cojinoa, pargo rojo, tilapia roja, jurel, tilapia nilótica (striped catfish, bocachico, blue runner, red snapper, red tilapia, crevalle jack, Nile tilapia) Pseudoplatystoma fasciatum, Prochilodus magdalenae, Caranx crysos, Lutjanus purpureus, Oreochromis spp., Caranx hippos, Oreochromis niloticus.
Foto 2: bonito, pargo rojo, sierra ó carita, bocachico (Atlantic bonito, red snapper, Spanish mackarel, bocachico) Sarda sarda, lutjanus purpureus, Scomberomorus maculatus, Prochilodus magdalenae
Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or more. This is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=5386
Aug 22 2012
Retail outlets are considered a major channel for fish supply. These outlets vary in size and quality levels depending on the purchasing power of clients served by these shops which could be individually located or clustered in a fish compartment in a bigger market. Fish on the display in regard to types or size grades is largely driven by consumer preference. The two photos show a fish display in Alexandria whereas marine fish, shrimp, bivalve and crabs are more consumed compared to Cairo or the delta as tilapia and mullet are more dominant on displays. Fish species or sizes could be displayed side by side or could be placed by species in a traditional container as shown in one photo. In case the retail shops are clustered in a bigger market, there is a higher possibility to find special facilities which provide fish preparation services starting from heading, gutting or filleting and may provide more preparation and cooking as required by consumers. Similar cooking or preparation facilities could be found in scattered retails as a means of promoting the fish sale if found feasible.
Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or more. This is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=5370
Aug 19 2012
Credit: Gaves Mulaleya (Malawi)
In addition to the small-scale aquaculture which is the common type of aquaculture in Malawi, there are two middle/large-scale fish farms that have started in 2004 as shown in the two photos. The first is a cage farm in Lake Malawi while the second is a land-based semi-intensive pond culture in the Lower Shire valley. Oreochromis karongae is farmed in the cage farm while common carp and Oreochromis mossambicus are farmed in the land-based farm. The commercial aquaculture is estimated to produce by more than 3000 tons of fish per year.
Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or more. This is expected and will be appreciated
Permanent link to this article: https://fishconsult.org/?p=5309
Aug 18 2012
This project has been developed by a group of trainees who participated during 2012 in the Warm Water Fish Production training course which is hosted by the Egyptian International Centre for Agriculture (EICA) in partnership with Japan International Cooperation Agency (JICA). The proposed location of this project is the suburban area of the city of N’Gaoundéré (Cameroon). The project components include the rationality of the project as well as the chosen species (Nile tilapia, Oreochromis niloticus), water source, market study, technical aspects, layout of the project, project operation, man-power and logistics, and financial analysis. The document includes supporting diagrams. This project is a part of the training program whereas group projects are supervised by Dr. Abdel Rahman El Gamal.
Permanent link to this article: https://fishconsult.org/?p=5235
Aug 18 2012
Credit: Emmanuel Hahirwabasenga and Rwigiriza Augustin Kanimba (Rwanda)
The photos show an individually owned fish farm whereas the integration of fish farming and rabbit is practiced. The organic manure produced by rabbits is used to enhance the natural food in fish pond and hence improve the nutritional status as well as the economics of the operation. This farm is located in Nyagasambu, about 30km East of Capital city Kigali.
Permanent link to this article: https://fishconsult.org/?p=5230
Aug 18 2012
Credit: Emmanuel Hahirwabasenga and Rwigiriza Augustin Kanimba (Rwanda)
The two photos show Kigembe tilapia hatchery along with tilapia nursery ponds. The facility is situated in the southern province about 25km from the second largest capital city called Huye. The facility which is owned by the Government is responsible for the multiplication of fingerlings.
Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or more. This is expected and will be appreciated
Permanent link to this article: https://fishconsult.org/?p=5222
Aug 17 2012
This video was taken in Monterey Bay Aquarium, USA during June, 2012
Reproduction and life cycle: Moray eels show hermaproditism phenomenon where some of the morays they start males before turning into females (sequential) while others are synchronous (having both functional testes and ovaries at the same time) and can mate with either sex. The mating is triggered by the rising of water temperature whereas eggs are laid and fertilized by the sperm. Fertilized eggs hatch into leptocephalus larvae that float for about 8 months in the open ocean. Then after, they swim down as elvers to begin life on the reef and eventually become a moray eel.
Mucus secretion: Moray eels secrete protective mucus over their smooth, scaleless skin in greater quantities compared to other eels. This allows eels to swim faster around the reef without fear of abrasion. Also sand-dwelling morays can make their burrow stronger and permanent, as sand granules adhere with the mucus and attach to the sides of the burrows.
Gaping: Due to the small size of the gills, morays have to continuously open and close their mouths in a gaping fashion to maintain a flow of water and facilitate respiration.
Moray eel’s predators: The difficulty in the predation on morays is related to their nature of living in tight spaces whether in burrows or crevices in the ocean’s coral reefs. Their predators include large groupers, barracudas and sea snakes.
Conservation status: There is no much concern in regard to the conservation of moral eels. This is due –in part- to their possible ciguatera toxicity to consumers. Toxins from dinoflagellates may accumulate in the moray’s tissue through the food chain. This fact was apparently the cause of death for King Henry I of England.
References: Wikipedia, Dive the World, Natural Geographic News
Permanent link to this article: https://fishconsult.org/?p=5213
Aug 17 2012
This video was taken in Monterey Bay Aquarium, USA during June, 2012
Introduction: Moray eels belong to about 15 genera and about 200 species in the family Muraenidae. With few exceptions, the moray eels are almost exclusively marine. The size of moray eels vary significantly according to species whereas the smallest eels would measure about 12-20 cm as maximum compared to 3-4 m length for the largest (giant) eels. There is a commercial fishery for several species, but some cause ciguatera fish poisoning. Depending on species, morays may live between 6 and 36 years depending in natural systems.
Characteristics: Moral eels have a dorsal fin while pectoral and pelvic fins are absent. The head of the moray eel is large with small eyes as rely on their highly developed sense of smell which makes up for their poor eyesight. They have a wide mouth with large teeth that are designed for tearing flesh or grasping slippery prey. Moray eels are the only known animal to use pharyngeal jaws to capture and restrain prey. In regard to colors, moray eels show variety of colorations depending on species.
Distribution and Habitats: Moray eels are found worldwide in tropical and temperate seas, particularly among reefs and rocks in warm oceans. They live at depths of up to several hundred meters, where they spend most of their time concealed inside crevices and alcoves. While several species regularly are found in brackish water, very few species can be found in freshwater.
Feeding habits: Morays are carnivores and feed primarily on other fish, cephalopods, molluscs, and crustaceans. They rely on their excellent sense of smell in their hunting which takes place at night. They may also hide in their crevices waiting until their prey is close enough, and then they launch themselves from the burrow and clasp the prey with their powerful jaws.
References: Wikipedia, Dive the World, Natural Geographic News
Permanent link to this article: https://fishconsult.org/?p=5204
