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Science as Leisure

Liz Marchio

I am a trained ichthyologist interested in what gets people interested in natural history, biological sciences, and science careers. My passion is to find out what fuels curiosity for the natural world.

Biology-related serious leisure activities can impact people's interest in ecology, biology, and natural history. Do these activities promote biological understanding? If so, how does that progress and to what level does it progress to? 

If you're interested in a starting a dialogue, please feel free to contact me. If you're curious about how I got here, my story can be found on the About Me page.


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Academic Papers: Aquarium Species v1

As an academic I need to stay on top of my field. To do this, I subscribe to updates through Google Scholar.

This subscription allows me to send myself new publications on papers I *should* find relevant. 

I get a lot of new papers I can't really use but know others who may find the material interesting, even if it is just the abstract. So, I am going to try to post some links to BRAND NEW information on aquarium species of fish, mainly. 

If you're interested in more information on each paper, please contact me

Here is v1:

1: Evaluation of decompression and venting and its affect on stress and mortality in the Yellow Tang (Zebrasoma flavescens). Click here for the abstract. 

marchio yellow tang fish aquarium

2: The relationship between the numbers of spot, sex and size of the spotted barb, Puntius binotatus was investigated in order to develop a phenotypic sex identification method for the broodstock management of this species.  Click here for the paper (I think this will work) 

marchio barb aquarium fish

3: Ecological and Evolutionary Applications for Environmental Sex Reversal of Fish DNA. Click here for the abstract.


3: Barcoding in Pencilfishes (Lebiasinidae: Nannostomus) Reveals Cryptic Diversity across the Brazilian Amazon. Click here for the PAPER! Yes, open access! 

Photo by  Rachel O'Leary

4: Growth of mycotal fungus on carp eggs in differing environments. Click here for the PAPER!



Well, I hope this was helpful! Please give me feedback in the comments or via e-mail

Starting an Aquarium uses SCIENCE!

I've told people how I became a scientist and that a lot of it has to do with keeping aquariums.

science bitch.jpg

So... What does science have to do with keeping an aquarium?! 

Here is a teeny, tiny illustration of this phenomenon:

First of all, an aquarium is an ecosystem. Period. Accepting this is absolutely a key to success- if you cannot think of the aquarium or "tank" as a small slice of a wild counterpart (ocean, swamp, river, etc.), you're going to fail over and over.

Aquariums are biological recreations of the real world. 

Sometimes aquarists accidentally accept this fact. They may not recognize the hobby as "science" or that utilizing science will help them succeed; however, interestingly they actually use the scientific method of falsification in order to obtain success- another form of science in the hobby! Simply put, falsification is hypothesis testing: You make a prediction and if it fails, you know that's not right and you alter your prediction and try something else. Eventually you get a billion and one ways of doing something wrong and you forge a tiny little path into success. If aquarists stick to falsification long enough (have enough cash to blow, are stubborn, etc.), they eventually "accept" the ecosystem phenomena, whether they know it or not.

The hobby, accepted as science or not, utilizes it to just keep fish alive in an aquarium.

Other times, repetitive failure ends in quitting the hobby. And, of course, it's not this simple... understanding the hobby as science won't immediately make you succeed at keeping fish in a tank, but I bet it will get you there faster. Part of the hobby is figuring it out, taking chances, doing something crazy and seeing how it works. Failure keeps it challenging.

As I said, the hobby uses science just to keep fish alive in an aquarium. Another important and major science-understanding obstacle of keeping an aquarium is what aquarists call, "The Cycle". This concept may strike fear into a newbie- there are a lot of big, strange words. In the end, this cycle is the core of keeping aquatic animals alive in captive environments. The concept is important and its utilization essential

nitrogen cycle.png

The cycle is basically answering "where does the poop go?". Maybe when you flush the toilet, you never think about your own "creation" and where it goes... but when you keep an aquarium, you not only have to think about poop (a lot), you have to physically remove it with your mouth. 

Wait, what?? With your mouth? 

Yep. Well, it is one way to remove waste from an aquarium. And, technically, you aren't removing poop; you're removing nitrate (see image above). 

As you can see, just getting an aquarium started takes you through a lot of science concepts and can accidentally make you more science literate.

I'll post more science-phenomena about aquariums in another installment. I hope this was informative and enjoyable. Have a bone to pick with me about this? Please send me an e-mail and let's talk. 

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