Hydropower Versus Fish

By: Jessica Robertson

With the challenge of answering the biggest environmental problems of our age comes the responsibility to simultaneously bring balance to all aspects of the planet. Unfortunately, harmony does not always exist between the various strategies for environmental improvement, but it is our responsibility to establish and preserve healthy relationships between all aspects of the environment.

One not-so-harmonious relationship is represented in the current battle between the fish population and the high-pressure dams powering the hydropower industry. Hydropower is an essential component of the new environment-focused energy industry. Renewable, clean energy is produced and stored by capturing the potential of flowing water, often with dams and turbines in rivers. However, these mechanisms are detrimental to fish in their locale.

Fast, coursing water churns powerfully around the dam area, creating a pressure change that is so dramatic that it can cause serious internal injury or death to fish. The forces can burst a fish’s swim bladder, an organ responsible for maintaining buoyancy at a particular depth; it is designed to inflate and deflate as needed, but the pressure changes in this phenomenon, known as barotrauma, simply cause too much change too fast for the swim bladder to withstand. Besides these serious internal injuries, fish can also become disoriented in the raging waters around the machinery, and they are at risk of being thrashed about by blades of the turbine.

Even with the great success and promise of hydropower, the industry is aware of the dangers to local fish populations. Hydropower is too crucial to the development of a sustainable planet to be forgotten, but, at the same time, it is intolerable that our ecosystem suffer at the hands of “clean” energy. Is hydropower truly “clean” or “sustainable” if whole populations of water-dwelling animals are lost?

The dilemma is being quickly addressed across the globe in laboratories and in real-life application. Strategies are being implemented for preventing the dangerous pressure change around the dam, making rivers again safe for their inhabitants, and making clean energy truly clean.

Connoisseurs of Comfort

By: Kate Serrano

There is always a good feeling about having pets around. Whether you are a cat or dog person, there are many ways on how pets help improve health. Pets are natural mood enhancers – just by watching a dog play or a fish swim can already make a person feel less stressed. This is the same reason why therapists prescribe a pet as a way of dealing with depression.

 Pets provide unconditional love and will listen to you talk for as long as you want to talk. Pets improve social interaction as they keep you engaged with others. A dog, for example, is a conversation waiting to happen. People stop and talk when they see someone walking a dog. And while socially uplifting, walking the dog also improves physical fitness. A good 30 minute walk or playing fetch will keep one moving, thereby meeting the minimum recommended physical activity for a day. Walking the dog also helps develop strong bones and prevent osteoporosis and painful fractures. It exposes you to sunlight, which is a good source of vitamin D. lastly, having a pet helps manage health conditions; owning a cat for example has long term health benefits.

In a study conducted for almost 20 years now, people who never owned a cat were 40% most likely to die of heart attack and have higher risks of cardiac diseases. And in another study, pet owners had lower blood pressure and heart rate than those without pets. Kids who grow up in homes with cats and dogs are less likely to develop allergies. Higher levels of immune system chemicals build a stronger immune system, keeping them healthy as they grow older.

So whether you consider having a dog, cat or even a hamster, it doesn't really matter. It’s already a good start to maintaining a healthy, happy life.

Conservation of Our Reefs

By: Kate Serrano

Many problems have plagued Philippine beaches. With the rise in globalization of the country, one cannot help but think about its altering effects to not only to locals but more importantly to the marine life down under. Over the years, the beautiful coral reefs have sadly been depleted by dynamite fishing as local fishermen regard it as a faster way of earning the big bucks. Little do they know that coral reefs serve as sanctuaries and spawning grounds of fish and other marine life? Luckily the government has taken a stand.

 The Philippine government has taken measures to get local fisher folks informed and provided aid in finding alternative ways of generating income. By educating fishermen of the important roles coral reefs play in protecting the country from typhoons and hurricanes (which have recently become a phenomenon) dynamite fishing have slowly become a thing of the past. In addition, the government has stressed out protecting coral reefs as having a positive impact on local tourism –it means more attraction for divers and snorkeling tourists; in a country where tourists abound not only because of the inexpensive travel and the hospitality of the locals, it pays to take care of natural resources.

The Philippines boasts of a vast 7,107 islands and countless majestic beaches. It takes more time repairing than taking care of each one. While we marvel at the site of a glorious sunset by the beach, the question remains – how can we make these be available for the generations to come?