News
Announcing the winner of Scubaverse.com’s Video of the Year 2015
Over the year there have been many very good entries into Scubaverse.com’s monthly Underwater Video Contests as well as one or two that although lacking in filming and editing experience, have nevertheless shown a great love of diving as well as a passion for the marine life encountered. It’s been a pleasure watching them all.
Making underwater videos is not as easy as one may first think. There are many disciplines to go through. First of all being a competent diver, although not crucial, is an advantage. Being able to concentrate on filming subjects while being able to dive on automatic is a definite bonus. There are occasions when inexperienced divers get carried away with shooting video, or even taking still photos, and get caught short by lack of air or ignoring possible decompression times. This does not mean the novice diver shouldn’t take video, but in doing so they must concentrate harder on keeping their dive profile safe. It is often all too tempting to swim off into the blue after a Dolphin or Manta only to discover that you are now caught in a current and can’t get back to the boat or reef. Another important skill to have is good buoyancy control so you don’t damage coral or kick up sediment when trying to get close to animals.
In the end, is it all worth it? Yes of course. The pure thrill of getting close to and capturing on video some fantastic marine animal and watching its behaviour is intoxicating.
But it’s when you are with your subject that the next stages of discipline kick in. Holding the camera steady while taking the shots. Often quite hard to do, especially in a swell or fast current. Is the image in focus and sharp? Is the exposure and colour balance right? How is the framing? All questions I continually ask myself as I shoot any video sequence. What’s the animal going to do next, and am I ready? Then when I have a good image secured in the camera, I have to think how is this going to fit in my sequence when I come to edit.
Of course most of this can be ignored simply by shooting with automatic cameras such as GoPro and just letting it run on its own throughout the entire dive. But oh how I feel for the poor partners back on shore that have to sit through hours of wobbly out of focus video and then say “That was nice dear.”
The only reason I mention all this is that I want the reader to have an idea just how much effort has gone into each video submitted in our monthly underwater video contest and how well the overall winner has done.
Along with myself, we had guest judges who kindly gave their time to look at each video and help choose the winner. Sven Harms and Yvette Trinh from SeaLife cameras and lights, and Dave Glanfield from Ocean Leisure Cameras. As judging can often be very subjective we decide to pick a winner by completing a point card system where different aspects of video making were given scores out of five. These were, composition, technical quality, overall feel to the film, narration, story telling, music choice and many more. Seventeen categories in all. Then the marks were added up and the winner declared.
The winner of Scubaverse.com’s Video of the Year 2015 is Matthias Lebo, with his winning film ‘The Four Kings’.
Congratulations Matthias – a worthy winner indeed. Your Scubapro Travel Kit is on its way to you.
Here is Scubaverse.com’s Video of the Year 2015:
You can enter Scubaverse.com’s Video of the Month Contest here. The contest generally runs from the 5th to the 25th of each month.
Marine Life & Conservation Blogs
Creature Feature: Undulate Ray
In this series, the Shark Trust will be sharing amazing facts about different species of sharks and what you can do to help protect them.
This month we’re looking at the Undulate Ray. Easily identified by its beautiful, ornate pattern, the Undulate Ray gets its name from the undulating patterns of lines and spots on its dorsal side.
This skate is usually found on sandy or muddy sea floors, down to about 200 m deep, although it is more commonly found shallower. They can grow up to 90 cm total length. Depending on the size of the individual, their diet can range from shrimps to crabs.
Although sometimes called the Undulate Ray, this is actually a species of skate, meaning that, as all true skates do, they lay eggs. The eggs are contained in keratin eggcases – the same material that our hair and nails are made up of! These eggcases are also commonly called mermaid’s purses and can be found washed up on beaches all around the UK. If you find one, be sure to take a picture and upload your find to the Great Eggcase Hunt – the Shark Trust’s flagship citizen science project.
It is worth noting that on the south coasts, these eggcases can be confused with those of the Spotted Ray, especially as they look very similar and the ranges overlap, so we sometimes informally refer to them as ‘Spundulates’.
Scientific Name: Raja undulata
Family: Rajidae
Maximum Size: 90cm (total length)
Diet: shrimps and crabs
Distribution: found around the eastern Atlantic and in the Mediterranean Sea.
Habitat: shelf waters down to 200m deep.
Conservation Status : As a commercially exploited species, the Undulate Ray is a recovering species in some areas. The good thing is that they have some of the most comprehensive management measures of almost any elasmobranch species, with both minimum and maximum landing sizes as well as a closed season. Additionally, targeting is entirely prohibited in some areas. They are also often caught as bycatch in various fisheries – in some areas they can be landed whilst in others they must be discarded.
IUCN Red List Status: Endangered
For more great shark information and conservation visit the Shark Trust Website
Image Credits: Banner – Sheila Openshaw; Illustration – Marc Dando
Blogs
Guarding Against Coral Invaders
Protecting (Dutch) Caribbean Reefs from Unomia stolonifera
Recent reports highlight the concerning spread of the invasive soft coral, Unomia stolonifera, currently devastating Venezuela’s marine ecosystems and detected in Cuba. With the potential threat of its expansion to the (Dutch) Caribbean islands, urgent action and awareness are essential to safeguard marine biodiversity and local economies from possible catastrophic consequences.
Invasive species are animals or plants from another region of the world that don’t belong in their new environment. These species can have major ecological effects by decimating native flora or fauna. They can also cause large economic losses and impact human health. Invasive species also pose a significant threat to marine ecosystems worldwide, including the Dutch Caribbean. Among these invaders is the octocoral species Unomia stolonifera or “Pulsing Xenia”, originally from the Indo-Pacific. With its rapid growth and lack of natural predators, this species can outcompete native species and disrupt fragile marine habitats such as seagrass beds and coral reefs.
Background
The invasive soft coral U. stolonifera was first identified in 2014, off the coast of Venezuela. It is believed to have been introduced via the illegal aquarium trade. Since this species can reproduce sexually and asexually (or fragment), even small pieces can regenerate to spread. Once introduced it quickly took over shallow reefs and hard substrate at depths of 0-50 meters, outcompeting local corals and seagrass for space. Follow on surveys found that this coral species exhibited average percentage cover as high as 80%, vastly outcompeting native corals. In highly colonized areas, fish are disappearing due to loss of habitats.
In 2022, during a survey conducted in Cuba by the University of Havana, an unknown octocoral was discovered which was later identified as the invasive Unomia stolonifera. It is suspected that the coral larvae arrived in ballast water from fossil fuel ships originating from Venezuela, as nearby sites adjacent to Venezuelan ports have been heavily affected by the invasion.
How to help
Prevention through continuous monitoring, particularly in high-risk areas such as marine harbors and oil facilities, is paramount. Early detection plays a pivotal role in mitigating the threat posed by Unomia stolonifera.
The public’s involvement and awareness are also vital. Local communities, recreational divers, tourists, and all stakeholders are urged to participate in early detection efforts by reporting sightings (photo, location and date) of this invasive coral to their respective Protected Area Management Organization (PMO’s)- the Fundacion Parke Nacional Aruba (FPNA), STINAPA Bonaire, CARMABI Curaçao , Saba Conservation Foundation (SCF), Nature Foundation St. Maarten (NFSXM) and St. Eustatius National Parks (STENAPA). If an invaded area is confirmed, follow the recommendations by the local PMO’s.
Keys to Success
Despite the challenges, early detection is key to mitigating the threat posed by Unomia stolonifera. With continued vigilance, research, and community engagement, there is hope for containing this potential issue before it becomes a major threat.
About the DCNA
The Dutch Caribbean Nature Alliance (DCNA) supports (science) communication and outreach in the Dutch Caribbean region by making nature related (scientific) information more widely available through amongst others the Dutch Caribbean Biodiversity Database, DCNA’s news platform BioNews and through the press. This article contains the results from several scientific studies but the studies themselves are not DCNA studies. No rights can be derived from the content. DCNA is not liable for the content and the in(direct) impacts resulting from publishing this article.
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