Underwater Photography 18/365 “Elegans Nudibranch”

“Elegans Nudibranch” Project Picture 18/365

Elegans Nudibranch-18/365

Nikon D90   Nikkor 60mm   1/60   f/18.0   ISO 200

This nudibranch is the largest doridacea in the Mediterranean but can also be found in the Atlantic. Nudibranchs are always very colourful and toxic, they obtain their toxicity from the sponges they eat, this one particularly eats Ircinias or Dysideas. As they are usually very small, with exemptions like this Hypselodoris Picta or one I showed you on an earlier post the Swiss Cow “Discodoris Atromaculata”, one good way to find them is by looking for their favourite food.

As I explained on the Swiss Cow post ,nudibranch means naked gills, so when taking pictures of them you should try to have in focus their rinophores and/or their  gills, (gils are not shown in this one).

Another thing to bear in mind to avoid blowing up some parts of the image is that some nudibranchs can be translucent or reflective so their skin has two different exposures one in the skin and the other one in the marks. The solution is to make several shots,trying different strobe positions placing them further away, closing down the aperture or increasing the shutter speed.

Este nudibranquio es el mayor del genero doridacea en el Mediterráneo y también se puede encontrar en el Atlántico. Los nudibranquios son siempre muy coloridos y tóxicos, obtienen su toxicidad de las esponjas con que se alimentan, este en concreto come  Ircinias o Dysideas. Como suelen ser animales muy pequeños, con excepciones como este Hypselodoris Picta o uno del que ya he hablado anteriormente la vaquita suiza “Discodoris Atromaculata”, una buena forma de encontrarlos es localizando sus esponjas favoritas.

Como expliqué en el post de la vaquita suiza, nudibranquio significa branquias desnudas, por lo que al hacerles fotos es recomendable que estén bien enfocados o sus rinoforos o sus branquias, si están los dos mejor, en esta foto las branquias no aparecen.

Otra cosa a tener en cuenta para no quemar la imagen es que algunos nudibranquios  como el de hoy son translúcidos por lo que su piel tiene dos exposiciones diferentes, una en la piel y otra en las manchas.La solución es hacer varias tomas,retrasando la posición del flash, cerrando un poco la apertura o usando velocidades más altas.

Underwater Photography 17/365 “Flying Chromis”

Underwater Photography 16/365 “Striped Red Mullet Portrait”

Underwater Photography 15/365 “Mysterious Moray Eel”

365 Days of Underwater Photography Project

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