Saturday: Boat or shore dives in the morning (early); night dive at Simon’s Town jetty at 7.00 pm
Its been a while since I have seen Muizenberg this clean, not that I go there all that often, but I do think we are going to have really good visibility in False Bay by Saturday and plan to start really early. At this point I have yet to decide on whether to shore dive or boat dive but will make that decision early tomorrow, so please text me your preference.
Diversnight takes place on Saturday evening. We will be diving off the jetty in Simon’s Town (note change of location), meeting at 7.00 pm. We need to be in the water at the hour of 8.16 pm (2016!) for our efforts to count towards the official Diversnight aims of, uh, night diving around the world at the same time. There’s a facebook event here, and the official event page here.
Please let me know by 5 pm tomorrow if you’re coming so that I can give the jettymaster the approximate number of divers to expect. If you need any gear, you need to tell me by tomorrow as well please.
Sunday: Early morning double tank dive, location to be confirmed
Conditions last weekend were pretty good. Not much wind or swell and decent visibility. The wind and swell for the weekend ahead look great with very little of either. False Bay, on the other hand, looks a little messy from some humping south easterly wind today.
The wind dies tomorrow and stays away for the weekend. I don’t doubt that both False Bay and the Atlantic will offer decent diving if you take the time to check before you choose. I plan to launch on Sunday as early as possible for a double tank dive somewhere clean. I have family arriving at midday from abroad and want to be done by then. If you are up for a early dive let me know and I will add you to the list.
The Shark Spotters mobile app is available – search for Shark Spotters in the Apple app store or Google Play store and download it for free!
The weather for warm, sunny diving is here – almost! As I’m sure you noticed, we had a day or two of temperatures in the high twenties which is my kind of weather. False Bay has been pleasant this week, with some visibility and not much swell to go with the sunny days. It won’t be quite that warm this weekend but conditions will definitely be worth diving.
We will shore dive at Long Beachon Saturday and launch for boat dives from the Simon’s Town jettyon Sunday. Both boat dives will be to a maximum depth of 18 metres as they will be first boat dives for a few students. Sites will be chosen on the day.
The cold front seems to have passed by and the second one that was meant to arrive tomorrow seems now to be giving us a miss. We had 40 mm of rain at home on Thursday, for which we are grateful. The break in the weather means there is a good chance some diving might happen this weekend!
I am going to shore dive on Saturday at Long Beach and launch on Sunday, the first dive being to the Brunswick, meeting on the jetty in Simon’s Town at 10.00am. The second dive will be at 12.30, the location weather and viz dependent.
I know we are barely past the halfway mark of winter, but the last few warm and pleasant days have got me wishing summer was here.
Some swell and lots of south easterly wind are in the forecast for Saturday, so Sunday will be the better option for diving. We will aim for a later start to see how well False Bay fares during Saturday’s onslaught. If we decide to launch the boat it will be from the Simon’s Town Jetty at 9.30 and 12.00 and the most likely sites will be Photographer’s Reef and Roman Rock.
If the conditions aren’t boat-worthy on Sunday, we’ll shore dive at Long Beach.
This entails providing a straight course for the swimmer so as to minimise the distance swum, and keeping an eye on them to ensure that they don’t get too cold or show any other symptoms of hypothermia or distress. It requires communication with race control by radio, and a bit of boat and swimmer dodging in the early stages of the race when the water is thick with activity.
There was a 3.5 metre swell on the day, which made the ride out to the island a bit bumpy. As soon as we were in the shelter of the island, however, the sea was flattened as the swell diverted around the island. The water remained calm until we got quite close to shore, at which point the swell picked up. The final stretch from the rocks at Big Bay to the beach must have been very hairy for the swimmers!
Our swimmer, Maryna, swam in a wetsuit. She was part of the Lighthouse Swim relay team we supported last year. The water was relatively warm (13-16 degrees) clear at the island, and we could see kelp and quite far down into the sea. Great red streaks of water, probably an algae bloom, were filled with sea jellies (which stung Maryna, but she continued strongly). These were replaced by murky green water close to the shore, where the swell had lifted the sand particles into the water column.
It was a good day out, and always a pleasure to see Table Mountain in its majesty from the water.
It’s not uncommon to come across marine wildlife – seabirds, seals, turtles – apparently in distress. This is not always the case, so before you mount a complex and dangerous rescue mission, or try to provide help where none is needed, it may be wise to get an expert on the telephone to help you determine whether it really is necessary. Fortunately there is a range of 24-hour wildlife hotlines to choose from, depending on what species you are dealing with.
Seals with plastic or fishing line around their necks should be reported to the Two Oceans Aquarium (if the seal was spotted around Cape Town harbour or the Waterfront), or, more generally to the SPCA Wildlife Unit on +27 (0) 21 700 4158/4159, or +27 (0) 83 326 1604 after hours and on weekends. Unfortunately the odds are your seal is probably not going to get the help it needs if it isn’t in the port of Cape Town or at the Waterfront; this doesn’t mean you shouldn’t do your darndest to advocate on its behalf.
You can help to deal with this problem at its source by retrieving any loops of plastic that you see floating in the water when you’re on a boat. Hout Bay harbour is a particular cesspit of plastic pollution, and with a nearby seal colony it’s a recipe for disaster. Cutting through any closed loops on plastic items (such as beer can holders) that you recycle or dispose of yourself also ensures that should the plastic end up in the wild, it won’t entangle an animal.
Seals found lying on the beach are usually not in trouble. Juvenile seals may rest for long periods – a couple of days at a time – on shore, and the most important thing to do is not to disturb them. They don’t need to be kept wet, they don’t need to be fed, and they can inflict a nasty bite. Encourage other members of the public to give the animal a wide berth, particularly if they have dogs. Lead by example. If the animal appears visibly unwell (fitting, for example) or is bleeding, then call the SPCA Wildlife Unit for a chat about what course of action is best.
Seabirds are most often found entangled in fishing line or plastic, pierced by fishing hooks, or, in the event of an oil spill, with oiled feathers. It is important to get help if possible, particularly for oiled birds.
SANCCOB has a 24 hour rescue centre which can be reached on +27 (0)21 557 6155 or +27 (0) 78 638 3731 (after hours & weekends). Their website provides the following advice to would-be seabird rescuers:
What to do when you have found an injured/sick/oiled seabird:
If you are unable to handle the seabird, SANCCOB will send out a unit to collect the bird.
If you approach any seabird, please approach with care. Some seabirds such as Cape Gannets and African Penguins have sharp beaks.
Have with you a towel, or blanket and wear protection over your hands and eyes. Use a towel/blanket to throw over the bird to catch it, ensuring that the bird is able to breathe.
If you have a large box ensure that there are holes for air before you place the injured/sick marine bird.
During the autumn and winter months, juvenile and sub-adult sea turtles sometimes strand on Western Cape beaches. These animals are often shocked by the cold and in poor shape – they do not typically occur in Cape waters but are washed down in eddies of the Agulhas current.
Do not put the turtle back in the sea or into water. It is probably weak, dehydrated and hypothermic, and is likely to drown. Keep it dry, and call the Two Oceans Aquarium for further instructions and assistance. The aquarium rehabilitates and releases the turtles in warmer water when they are healthy.
The City of Cape Town would like ocean users to report whale carcasses before they end up on the beach. This is mostly for public safety and resource allocation purposes, but if we can do anything to keep a whale carcass out at sea (or on a secluded non-swimming beach), it serves a conservation purpose as well. There’s a phone number you can use to do this – read more here.
If you come across a current or imminent live whale or dolphin stranding, contact the NSRI on +27 (0) 21 449 3500 immediately. They will activate the relevant authorities. Try to bear in mind that these events often do not end well for the animals concerned, as they are often sick or disoriented and impossible to assist. Be a help, not a hindrance, and obey whatever instructions you are given by the NSRI, SanParks, or whoever comes to take charge.
A free-swimming but entangled whale should be immediately reported to the NSRI as well – they will activate the South African Whale Disentanglement Network. Do not attempt to assist the whale yourself – this could be fatal for you (not the whale) – rather make a note of the direction it is swimming, and its precise location, and whatever other helpful information you can provide. Whale entanglements seem to be increasing in frequency around False Bay in particular, as more experimental fisheries are approved. (If this worries you, you could write a letter to DAFF about it.)
Here are a few ways for Capetonians to save the ocean. Some through direct action, and others through support for scientific research that enables policy makers and conservationists to make good decisions about which species and habitats need protection.
I’ll update this list as new projects are brought to my attention. If you know of an opportunity for ordinary citizens to make a difference for marine science and/or conservation, let me know and I’ll add it here.
The Spot the Sevengill Shark project has a facebook page where you can submit images of broadnose sevengill cowsharks taken in False Bay and surrounds. The unique markings on these sharks enable repeat identification from well-composed images. Information about the sex, general appearance and behaviour of these sharks is also useful. There’s some information about the research project here. This is also a great project to follow (on facebook) to keep up to date with the tagging studies that are currently being done on this population of sharks.
For a more global flavour, you can check out the Sevengill Shark Identification Project. It operates mostly in the San Diego area in the USA, but accepts sevengill cowshark sightings from locations around the world, including from South Africa. Their facebook page recently celebrated the first logged sighting from False Bay.
You can either report the sighting via the Shark Spotters website, or you can call or text +27 (0) 78 174 4244. Provide as much information as possible, obviously including the location where you saw the shark, and when. If you have a photo or video, that’s a bonus!
Sharks and rays
The ELMO (South African Elasmobranch Monitoring) project collects reports of elasmobranch (shark and ray) sightings along the South African coastline. For the avid beachcomber, their database includes egg cases. The data collected is available to any interested party for their own projects, and can assist conservationists and politicians to make good decisions in order to protect species that need it.
The ELMO website is full of excellent information, including identification guides for egg cases and elasmobranchs, and a handling guide for live animals (aimed at fishermen, not people who are grabby – don’t be like that). You can submit your sightings online.
Upload photographs of the marine species you see to the iSpot, SAJellyWatch, or one of the Avian Demography Unit’s project pages. These observations are a help to researchers tracking species distribution – for example, as part of climate change and invasive species research.