Hermanus in the heart of the Cape Whale Coast of South AfricaContact Us

abalone groupThe South African abalone, Haliotis midae, is one of the largest molluscs on earth, attaining a weight of nearly 2kg and a ripe old age of 20 years.
Abalone is shellfish of the univalve family, meaning they have only one shell, unlike bivalves such as clams that consists of 2 shells. Most abalone lives in shallow waters and grows very slowly. The inner shell of an abalone, which has an iridescent green, blue or pink shine, is a source of mother-of-pearl.
abalone mother of pearl

Mother–of-Pearl is the common name for nacre. Like pearls, nacre is secreted by the shells of the mantle tissue of certain species of mollusc. It is continuously deposited on the inner surface of the shell. This nacreous layer is commonly known as mother-of-pearl. It acts both as a means to smooth the shell itself and as a defence against parasitic organisms. Mother-of-Pearl is considered highly attractive by many cultures and is often used in making jewellery or as inlays in wood furniture or guitars.
abalone diverAbalone inhibits the kelp forests of the temperate west and south coasts and reaches densities of up to 50 individuals per square meter.
Male abalone releases a cloud of sperm into the water, triggering the release of eggs by the female. For fertilization to take place, sperm and egg have to meet in the water column. Abalone reach sexual maturity at a small size, fertility is high and increase exponentially with size.
abalone juvelines in tanksThey only start spawning from 10 years and the majority are poached even before they reach this age. A 1.5 inch abalone may spawn 10 000 eggs or more t a time while an 8 inch abalone may spawn 11million or more eggs. Abalone eggs and larvae are consumed by filter feeding fish and shellfish. Crabs and lobster predate on the juvenile abalone
abalone juvenileAbalone shells are rounded or oval with a large dome towards one end. The shell has a row of respiratory pores.

The muscular foot has strong suction power permitting the abalone to clamp tightly to rocky surfaces.

 abalone concrete raceways

 What is Aquaculture?

One way of sustaining the abalone without plundering the ocean is to establish abalone farms. Abalone are naturally adapted to turbulent open sea conditions and can only be held in circulating, high-quality, well-oxygenated, fully marine salt water. In land-based abalone aquaculture, oceanic water is flushed through a system of plastic trays, or concrete raceways via pumps. This control of environmental factors optimize growth rates, whilst minimize any potential environmental impacts.

abalone 1920 postcard

Article first appeared in Marine Wildlife Magazine

Leave a comment

You are commenting as guest.

Call us and schedule your listing today! Contact Us

whale watching hermanus

WHALE WATCHING

in and around Hermanus

With countless Southern Right Whales gathering along the Whale coast every year to mate and to calve

LEARN MORE

sharkdiving43

Shark Cage Diving

One for the Bucket list

Experience the exceptional and come face to face with a great white shark! Gansbaai also known as Shark Alley…

Learn More

hermanus wine tasting

WINE TASTING

4 x Wine Routes

Hermanus is surrounded by 4 Wine routes, the Hermanus - (Hemel-and-Aarde); Stanford -, Elim - and Botriver Wine Route

LEARN MORE

hiking

Top Activities

in the Cape whale Coast

Hermanus is a spectacular seaside town with winding cliff paths, sloping green mountains, and deep blue waters.

Learn More

Stay Up To Date

Subscribe to our Monthly Newsletter. Hermanus Online Magazine on what to do, where to stay and an awesome blog

Office Locations

Hermanus Office

25 Mitchell Street, Checkers Building, Hermanus, South Africa
Phone: +27 (0) 28 312 3846
Email: CLICK HERE

Online Marketing Team

Jaydee Media
Phone: +27 (0) 28 312 3846
Email: CLICK HERE