{"id":4119,"date":"2015-04-01T12:00:33","date_gmt":"2015-04-01T10:00:33","guid":{"rendered":"https:\/\/wildlife-travel.com\/haie-in-suedafrika-das-citizen-science-projekt-elmo\/"},"modified":"2025-07-16T12:02:49","modified_gmt":"2025-07-16T10:02:49","slug":"sharks-in-south-africa-the-citizen-science-project-elmo","status":"publish","type":"post","link":"https:\/\/wildlife-travel.com\/en\/sharks-in-south-africa-the-citizen-science-project-elmo\/","title":{"rendered":"Sharks in South Africa \u2013 The citizen science project ELMO"},"content":{"rendered":"

Which sharks in South Africa are there?<\/p>\n

That is a good question I don\u2019t know.<\/p>\n

But a good place for advice with regard to this question is the ELMO project<\/a>. I got to know this interesting project during my three-month stay at the ORCA Foundation<\/a> in South Africa.<\/p>\n

ELMO is a citizen science project that provides long-term data about sharks, rays, skates (together the Elasmobranchs or in latin name the Elasmobranchii) and Chimaera (from the order Chimaeriformes).<\/p>\n

Both the Elasmobranchs and the Chimaera belong to the cartilaginous fishes (Chondrichthyes) as their skeleton \u2013 like the name suggests \u2013 is made of cartilage. While bone is a hard, cartilage is an elastic tissue.<\/p>\n

Referring to the initial question: Which sharks in South Africa are there?<\/p>\n

According to a study from 2015<\/a> there are about 204 different cartilaginous fishes in southern Africa (that means 17% of all cartilaginous fishes worldwide) whereas biodiversity is greater in the eastern waters with 175 species than in the west with 96 species.<\/p>\n

That is a rich biodiversity.<\/p>\n

However, 32.7% of cartilaginous fishes in southern Africa are either \u201evulnerable\u201c, \u201eendangered\u201c or \u201ecritically endangered\u201c according to the IUCN.<\/p>\n

That is more than twice as high as the global average of 15.9%.<\/p>\n

On the Website of the ELMO project is a species list<\/a> about all cartilaginous fishes in southern Africa, including sharks in South Africa.<\/p>\n

But if you want to know places where to spot sharks in South Africa, you can use the interactive map<\/a> on the ELMO website.<\/p>\n

This is a very convenient map for all shark observers, but also very important information about the distribution of sharks, rays, and skates in southern Africa.<\/p>\n

However, this map is still not complete and the ELMO project relies on the help of people that informs the team about new shark or ray sightings.<\/p>\n

This project is great, as everyone can participate!<\/p>\n

It doesn\u2019t matter wheather you are snorkeling, diving, swimming or on a beach walk.<\/p>\n

Everyone can contribute to the project.<\/p>\n

How does it work?<\/p>\n

If you spot for example a shark in South Africa you can report this information to the ELMO team.<\/p>\n

If you spot a shark in South Africa or any other cartilaginous fish and you want to report your sighting<\/a> to ELMO, provide as well information about what you were doing in that moment, and furthermore, try to identify your finding. If you do not know the species you can try to use iNaturalist<\/a> or iSpot Nature<\/a>.<\/p>\n

ELMO needs to know when and where you have seen a shark or any other cartilaginous fish, but also the weather condition (cloudy\/cloudless day, swell and\/or sight). Ideally you can provide your information together with a photo of your sighting. Even strandend sharks, rays or skates can be reported to ELMO.<\/p>\n

Another possibility to help ELMO is collecting egg cases.<\/p>\n

All rays, skates, chimaera, and some sharks are oviparous<\/a>, that means, they lay eggs. They lay their fertilized eggs on sandy ground or like sharks attach them on seaweed or rocks. The egg cases contain yolk that feeds the embryo until hatching.<\/p>\n

Empty egg cases are washed ashore after hatching.<\/p>\n

Some egg cases are washed onto the beach which you can collect and identify for the ELMO project.<\/p>\n

But if you see an egg case under water when snorkeling or diving, do not disturb the egg case. It is very likely that the egg case still contains a living embryo.<\/p>\n

There is an informative page on the ELMO project website that tells you how you can support the project with egg cases. On this website you also get support with identifying the egg cases<\/a>.<\/p>\n

Why is this important?<\/p>\n

With a growing knowledge about sharks, rays, skates and chimaera, data-based and informed decisions by scientists, politicians and other stakeholders can help to improve the protection of Elasmobranchs and Chimaera populations. If there is a decline in populations it is easier to convince politicians and other policymaker to protect these sharks, rays or skates, respectively. Thus, long-term data can support informed decisions to protect cartilaginous fishes.<\/p>\n

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