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Greatest shoal on Earth The sardine run is a natural phenomenon deeply ingrained in the South African cultural heritage, and while it is well known to many of the general public, it is still poorly understood from an ecological perspective. The sardine run is defined as the annual north-eastward migration of a small and variable […]

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Edible, exploited, endemic alikreukel

Edible, exploited, endemic alikreukel The South African marine resources have been exploited for subsistence purposes for thousands of years, but recently with rapid population growth, and a high concentration of people moving into coastal areas, the exploitation has intensified. Many subsistence fisheries are focused on intertidal and estuarine invertebrates, with the alikreukel Turbo sarmaticus being […]

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White Steenbras

White steenbras The white steenbras Lithognathus lithognathus is a slow-growing, long-lived, late maturing, and estuarine-dependent species endemic to South Africa. White steenbras is an important recreational and subsistence shore and estuarine fishery species, particularly in the southern and south-eastern coastal regions of South Africa. They can attain 25-30 years of age, and grow over 130cm […]

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Endangered Species Day

Endangered Species Day International Endangered Species Day is celebrated every third Friday in May, and this year it fell on 19th May. Endangered Species Day is a chance for us to recognize and appreciate the conservation efforts being put in by a number of organisations, men, and women around the world working to protect our […]

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May research blog!

May research blog: The elasmobranch egg case project continues to progress smoothly. Despite having dropped our surveys to only once a month, we still haven’t been able to totally process through our backlog, though we are steadily moving through it. There will be a big celebration once we have conquered the mountain of egg cases! […]

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The world’s largest ling fish

The world’s largest living fish We had an interesting visitor into the Knysna lagoon recently, a whale shark Rhincodon typus. Whale sharks are very large, slow-moving filter-feeders which have a circumpolar distribution through all tropical and warm water, between 30°N and 35°S. The distribution of whale sharks is temperature dependent, and they are rarely sighted […]

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Our first Research Blog for 2017!!!

Our first research blog for 2017!!! The ORCA Foundation team has hit the ground running this year, busy both outdoors and in! Despite the volunteer program being closed for a number of weeks, ORCA staff maintained the elasmobranch egg case project. Surveys were continued, and egg cases were collected. Now with the volunteer program back […]

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October research blog!!

October research blog. Well somehow October has passed us by and we are left with 3 weeks of the volunteer program. It has once again been a bit of a scramble to stay on top of the elasmobranch egg case project, which is currently sitting at 3918 egg cases. We have definitely seen an increase […]

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