I am very interested in the biology of my local fisheries and others. Seasonal variation in abundance dose not imply general trends and it is often the enlightenment by dedicated researches which provide information about sustainability in the long term. I found the this link to work undertaken by Australia's premier research organisation, the CSIRO focusing on the life cycle of the Ornate Rock Lobster. On the southern Queensland coast we get very large lobster which clearly don't undergo this migration and live locally to terminal moult (Crustaceans undergo a specific number of shedding of the shell which allows growth). I believe spearfishing is the most sustainable harvesting method and encourage other members of the community to become informed of the biology of target species in order to strengthen our political power to allow more effective lobbying. FYI that is a Cyrano 110 in the photo and once terminal moult is reached the individual is unable to further contribute to its population as matting occurs after moulting. I also hope this video gives others an insight into our Human diversity, something most of us could improve on.
https://youtu.be/XbM5ZMBBmrc
https://youtu.be/XbM5ZMBBmrc
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