Hello friends! I also want to leave my contribution to the Amazing Nature community and for this we are going to study two specimens of tadpoles that belong to two different species: (Pelophylax perezi) the common frog and (Bufo bufo) common European toad, it seemed incredible to me that both species laid their eggs in the same pool of water, this thanks to the rainy days of this month! I want to state that the two individuals were extracted lifeless from the water and I also made sure that they are not species in danger of extinction, so identifying them before throwing them out of the water was a crucial step.🔬🐸
Hola amigos! quiero dejarle tambien mi contribucion a la comunidad de Amazing Nature y para ello vamos a estudiar dos ejemplares de renacuajos que pertenecen a dos especies diferentes: (Pelophylax perezi) la rana comun y (Bufo bufo) sapo comun europeo, me parecio increible que ambas especies depositaran sus huevos dentro de un mismo charco de agua, esto gracias a los dias de lluvias de este mes! quiero dejar en constancia que los dos individuos fueron extraidos sin vida del agua y me asegure tambien que no sean especies en vias de extincion por eso identificarlos antes de tirarlos del agua fue un paso crucial.🧬✍🏻
Expectations✍🏻🐸/Expectativas📕🧫
You can not calculate the time that dead organisms have been in the water so I fear that they are decomposing and I can not observe the details, something that caught my attention is that the tadpoles of (Pelophylax perezi) look for the less deep spaces of the puddle, I suppose it is also to warm their organism or get away from predators of which there are many, while the species: (Bufo bufo) I saw that it tried to camouflage itself with the mud and detritus that forms on the surface of the water to the point of almost not seeing anything!✍🏻🧬
No se puede calcular el tiempo que tienen los organismos muertos dentro del agua asi que temo que esten en descomposicion y no pueda observar los detalles, algo que capto mi atencion es que los renacuajos de (Pelophylax perezi) buscan los espacios menos profundos del charco supongo que es para tambien calentar su organismo o alejarse de deprevadores de los cuales hay muchos, mientras la especie: (Bufo bufo) vi que intentaba camuflajearse con el barro y detritus que se forma en la superfice del agua a tal punto de casi no verse nada!🔬🧪
https://es.wikipedia.org/wiki/Pelophylax_perezi: "they usually grow in somewhat deep ponds in summer or spring"
According to the comparative reference "Wikipedia," this species typically inhabits both temporary and permanent bodies of water, and that the tadpole prefers to swim in areas with vegetation and a certain depth! In my experiment, the opposite was true; there is no vegetation here and less depth, indicating that the species is not very selective when laying its eggs in the water.🧬✍🏻🧫
Segun la referencia comparativa "wikipedia" nos indica que la especie suele ocupar cuerpos de aguas tanto temporales como en sitios permanentes y que el renacuajo prefiere nadar en sitios con vegetacion y cierto nivel de profunidad! en mi experimento fue todo lo contrario aqui no hay vegetacion y menos profundidad, esto nos indica que no es muy selectiva al momento de colocar sus huevos en el agua.🤓👨🏻🏫👨🏻🔬
https://es.wikipedia.org/wiki/Pelophylax_perezi
Scientific data✍🏻🐸/Datos cientificos📕🧫
When the frog is in its "tadpole" phase, the form of gas exchange is carried out through the skin, they absorb oxygen from the water and then it comes out through the "spiracle" hole, the skin of the tadpoles is naked as we see in the photos, provided with spots and colors that become evident as they grow, on the Bufo bufo tadpoles they have characteristics similar to Pelophylax perezi but according to the bibliography: "https://www.faunaiberica.org/sapo-comun" they only reproduce in spring and their adulthood is understood at the arrival of summer.👨🏻🏫🐸
Cuando la rana esta en su fase "renacuajo" la forma de intercambio gaseoso se realiza por medio de la piel, absorben el oxigeno del agua y luego sale por el orificio "espiraculo", la piel de los renacuajos es desnuda tal y como la vemos en las fotos, provistas de manchas y colores que se van haciendo evidentes a medida que van creciendo, sobre los renacuajos de Bufo bufo presentan caracteristicas similares a Pelophylax perezi pero segun la bibliografia: "https://www.faunaiberica.org/sapo-comun" solo se reproducen en primavera y su adultez se comprende en la llegada del verano.🧫✍🏻
The difference between the larval stage and the adult stage, to be more specific, tadpoles, is that the latter are exclusively herbivorous; they feed by filtering detritus and plants from the surface of the water. If you look at the place where I threw these two specimens, there are no suspended algae anywhere; on the contrary, it is only mud and slime. Since they have a long digestive system that is longer than their body, they have the ability to filter algae more efficiently. They are capable of filtering water eight times their entire body volume in just one minute. I dissected the food that was in the digestive tract and only found organic material, not algae.🧫🧪
La diferencia entre la fase larvaria y adultos para ser mas especificos renacuajos es que estos ultimos son unicamente herbivoros, se alimentan filtrando detritos y plantas de la superficie del agua, si observas el local donde tire estos dos ejemplares no hay algas suspendidas en ningun lado y por el contrario es solo barro y lodo, al poseer un sistema digestivo largo mas extenso que su cuerpo tienen la capacidad de filtrar algas de forma mas eficiente. Son capaces de filtrar el agua 8 veces la totalidad del volumen de su cuerpo en tan solo un minuto. Hice una diseccion del alimento que estaba en el tubo digestivo y solo localice material organico sin ser algas.👨🏻🏫👨🏻🔬
https://anatomia-y-fisiologia-animal-1.webnode.mx/alimentacion-y-digestion/
As you can see in tadpoles there begins to be a differentiation between the color pattern in the eyes and their morphology, in our two individuals we see differentiated patterns in both size and color, there are scientific studies that determined that the vision of tadpoles unlike adults is very poor, in fact when there was shadow on the surface of the water they did not move and it is easy to capture them, I suppose that everything is based on the survival mechanism there are thousands or millions of them in a pool of water with a high success rate, depending on good eyesight "is optional" when many reach adulthood.🧪🧫✍🏻
Como pueden ver ya en los renacuajos comienza a existir una diferenciacion entre el patron de colores en los ojos y su morfologia, en nuestros dos individuos vemos patrones diferenciados tanto en tamano como en color, hay estudios cientificos que determinaron que la vision de los renacuajos a diferencia de los adultos es muy pobre, en realidad cuando hacia sombra sobre la superficie del agua no se movian y es facil capturarlos, supongo que todo es en base al mecanismo de supervivencia son miles o millones de ellos en un charco de agua con una tasa alta de exito, depender de una buena vista "es opcional" cuando muchos llegan a la adultez.👨🏻🏫🐸🤓
https://www.yorku.ca/news/2022/06/22/tadpoles-undergo-surprising-number-of-vision-changes-when-becoming-frogs/#:~:text=The%20eyes%20of%20tadpoles%20had,they%20live%20in%20as%20tadpoles.
https://anfibiosyreptileslarioja.blogspot.com/2015/05/identificacion-de-renacuajos.html
This reference is perfect for seeing the differences between both tadpoles. These photos correspond to the amphibian's tail-body, one darker than the other and the other with more spots. The common toad's tadpole is no more than 3 cm in size, very dark, almost black! This species develops in a month. Now about the common frog: it can grow up to 10 cm; this one here can take months or even a year to complete its adult phase.🐸🧬
esta referencia es perfecta para ver las diferencias entre ambos renacuajos, estas fotos corresponden a la cola-cuerpo del anfibio, una mas oscura que la otra y otra con mas manchas, el sapo comun su renacuajo no pasa los 3cm de tamano muy oscuro casi negro! esta especie se desarrolla en un mes. Ahora sobre la rana comun: puede crecer hasta 10cm este de aqui puede demorar meses o incluso un ano en completar hasta su fase adulto.✍🏻🧫
Finally, we are going to explain a rather interesting scientific term, the "notochord," which is an elongated structure that extends along the longitudinal axis of the embryo's body and is composed of mesodermal cells. From here, the frog's future body develops. It is cylindrical and the nervous system and vertebrae are formed.✍🏻🧬🐸
Por ultimo vamos a explicar un termino cientifico bastante interesante y se trata del "notocordo" que es una estructura alargada que se extiende sobre el eje longitudinal del cuerpo del embrio y cuya composicion es por celulas mesodermicas, a partir de aqui se desarrollara el futuro cuerpo de la rana, es cilindrica y se forma el sistema nervioso y las vertebra.📕🔬👨🏻🔬
https://www.cun.es/diccionario-medico/terminos/notocorda#:~:text=La%20notocorda%20es%20una%20estructura%20cil%C3%ADndrica%20y%20flexible%20formada%20por,nervioso%20central%20y%20las%20v%C3%A9rtebras.
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