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This is a 10-minute, 10-episode podcast about misunderstood or unknown wildlife.
Summary: How do Aba aba make more Aba aba? Join Kiersten to find out about the reproductive behavior of Gymnarchus niloticus.
For my hearing impaired followers, a complete transcript of this podcast follows the show notes on Podbean
Show Notes:
“Abundance, Distribution, Morphometric, Feeding Evaluation and the Reproductive Strategies of Gymnarchus niloticus in the Lower River Niger at Agenebode, Edo State Nigeria,” by Mo Agbugui, Fe Abhulimen, and Ao Adeniyi. J. Apple. Sci. Environ. Manage Vol. 25 (8). 1371-1377, August 2021.
“Gymnarchus niloticus Cuvier, 1829
“Some Ecological Factors of the Tropical Floodplain Influencing the Breeding and Conservation of Gymnarchus niloticus (Cuvier 1829): A Review,” by Oladosu O. O., Oladosu G. A. And Hart A. I.
Music written and performed by Katherine Camp
Transcript
(Piano music plays)
Kiersten - This is Ten Things I Like About…a ten minute, ten episode podcast about unknown or misunderstood wildlife.
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Kiersten - Welcome to Ten Things I Like About… This is a podcast about misunderstood or unknown creatures in nature. Some we’ll find right out side our doors and some are continents away but all are fascinating.
This podcast will focus ten, ten minute episodes on different animals and their amazing characteristics. Please join me on this extraordinary journey, you won’t regret it.
Episode three of Aba aba is here and we are talking about reproduction. The end of episode two hinted at reproduction kicking off with the rainy season so that’s where we’ll begin. Join me for the third thing I like about Aba abas, reproduction.
It all begins when two Aba aba love each other, no really, it all begins with the rainy season. In the continent of Africa many animals rely on the abundance of the rainy season. This season brings rain that is a necessary resource for survival of all living things, as well as flooding the rivers. Flooded rivers overflow into flood plains where food becomes abundant. Terrestrial invertebrates are often caught off guard and drown leaving them to be consumed by aquatic carnivores, like the Aba aba. The Aba aba already lives in the water but when those waters rise nutrients increase and aquatic vegetation gets thicker. Then it’s time to start looking for a mate.
In studies performed in the Lower River Niger, two breeding peaks were observed. One from May to July, the other from October to January. The breeding behavior of Gymnarchus niloticus is heavily dependent on the flooding of the rivers. Beyond the food resources that increase at this time the aquatic plants that increase are important for the nest making of the Aba aba.
Now, the males of the species are the ones that make the nests. This is not uncommon in fish na the Aba aba is no exception. Their nests can be pretty big, but that is not a surprise for a fish that can get 5 feet in length. The male Aba aba makes a nest with uprooted aquatic plants. He pulls up the plants himself and weaves them into a floating nest that can be 1 meter, or 39 inches, in width. The perimeter of the nest is molded with the mud from the roots of the plants. It is expertly woven. It will be anchored to other plants and have an opening through which the male can enter and depart when needed. A little bit of the top of the nest will stick out of the surface of the water. If the nest becomes dislodged the male will remain with it as it floats down the river.
Inside the plants the male will create a bubble nest. This portion of the nest is made of air bubbles and this is where the eggs will be nestled.
The nest is important for several reasons: The first is to attract a mate. The ladies are attracted by large, well made nests, so the gentlemen will take their time picking the right plants for just the right nest. A few studies have indicated that they prefer plants in Family Poaceae, which are the grasses. The oblong leaves of the grass are perfect for weaving. We have to remember that this animal is wea
Ten Things I Like About... Podcast
This is a 10-minute, 10-episode podcast about misunderstood or unknown wildlife.