Advertisements

Category: Abalone

This category covers different species of abalone in regard to reproduction and culture

Seed production of red abalone (Haliotis rufescens) in Monterey region – California (USA) – Video

Video description: Peter Hain (USA) and Abdel Rahman El Gamal (Founder of the video channel) I filmed this video during my visit to this facility on 22 January 2015 where I received a warm welcome from Mr. Peter Hain, the manager of the facility who toured me around the facility. This facility is located in …

Continue reading

Advertisements

Permanent link to this article: http://fishconsult.org/?p=15673

Use of gonad color in abalone sexing

The inserted pictures belong to Omani abalone, Haliotis mariae. In the absence of external signs of sexual dimorphism for the shell structure, the sexing of abalone cannot be done based on the external differentiation and is only determined through the visual inspection of gonads which could be seen if the foot and mantle are forced …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=15107

Commercial culture of abalone in South Africa

Photos’ credit: Hussein El Ghobashy (Egypt) Review: Abdel Rahman El Gamal (Founder of the website)     The inserted pictures were taken in a commercial abalone farm in South Africa. The farm which is the first abalone farm in South Africa is located at Hermanus which is a seaside town southeast of Cape Town, Western …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=13936

Scallop ranching – Video

  This video was filmed in deep sea water in Scotland Video credit: Grant Campbell (Scot-Hatch Ltd, Scotland) Review: Abdel Rahman El Gamal (Founder of the video channel)   The scallop shown in this video is king scallop which is produced through “Scallop ranching” in Scotland. The scallop ranching has launched as a result of …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=12894

Napping Sea Lion in the territory of an abalone farm (Monterey, USA)

          During my visit to the abalone farm in Monterey, California, I took this picture for this napping sea lion. The abalone grow-out cages are located in the water several meters under the napping animal who reached the farm along with the morning high tide leaving the animal behind in the …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=12445

Nursed red abalone while grazing on sea lettuce (Ulva sp.)

Credit: Peter Hain (Monterey, USA) Red abalone, Haliotis rufescensis an important fishery resource in California, where several hatcheries are producing juveniles of this species. This picture has been taken in a nursing tank in one of those hatcheries located in Monterey region, California. Diatom is the starting feed for baby abalone. As abalones grow on the …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=12442

The day of abalone in Monterey, California)

                  Dear Friends,Yesterday (Wednesday, 22 January) was a long field visit which lasted 14 hours since I left Campbell where we stay to Monterey where the abalone projects exist and back to Campbell. The rich information gained through the visit would justify the lengthy hours spent. When …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=12249

Abalone crawling – Video

Source: www.fishconsult.org The specimen shown in this video is Omani abalone, Haliotis mariae. In nature and in situations of abundant algae supply, the adult abalone tends to stay in their location, waiting for their food to of the algae to be drifted to them by water currents. However, if food turns scarce, abalone crawls over …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=10480

Sexing and reproductive habits of abalone with a special emphasis on Omani abalone

Abalones are dioecious (separate male and female sex) as abalones develop their eggs and sperm in gonads located under the soft skin visible between the foot and the shell. There is no sexual dimorphism of the shell structure and so the sexing of abalone cannot be done based on the external differentiation and is only …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=10413

Red abalone, Haliotis rufescens (Distribution, biology, utilization and conservation)

Photo credit: Oscar Del Valle Ayala  (Peru)  Via: Wilder Rodriguez Arteaga (Peru) Review: Abdel Rahman El Gamal (Founder of the website) Introduction: The red abalone, Haliotis rufescens, is a snail-like, univalve species of a very large edible sea snail; it is a marine gastropod mollusk in the family Haliotidae. Historically, red abalone has been the …

Continue reading

Permanent link to this article: http://fishconsult.org/?p=7858

Load more

%d bloggers like this: