Monday, April 27, 2026

Weedy

These are a few more photos from the low tide on Stories Beach last week. Mostly seaweeds, in this  batch.

Sea lettuce, Ulva sp. and a small kelp. The kelp holdfasts dig into the rock, penetrating (and making) cracks. The tiny "fingers", called haptera, secrete a glue that hardens on contact with sea water.

This area of the beach is thickly coated with a good mix of  seaweeds; sea lettuce, kelps, rockweed,  sargassum, an almost black,wiry, tough fiber, little yellowish, bubble-like sacs, and a spaghetti-like red alga. With the occasional fragment of Turkish towel and eelgrass. The crow had been digging through it all.

New sargassum stems. And fragments of sea lettuce; it's everywhere.

More seaweed-coated rocks.

Tidepool on the edge of the seaweedy area. Mostly sea lettuce here.

Tomorrow: things in holes.

~~~~~~~~~~~~~

Estas son fotos de un area de la zona intermareal que está cubierta de algas marinas.

  1. Lechuga marina, Ulva sp., y quelpo. Esta alga marina no tiene raices, pero se adhiere a la roca con un disco de adhesión, que penetra las grietas en la roca con estructuras parecidas a dedos finitos, llamadas hapteras. Al ponerse en contacto con una superficie sólida, producen un pegamento que se endurece en agua salada.
  2. Esta area de la playa está cubierta con una gran variedad de algas: Ulva sp. (lechuga marina); Fucus sp.; Sargassum muticum; una fibra dura, como alambres, casi negra; unas bolsitas amarillas; un alga roja parecida a espagueti; y fragmentos de toalla Turka y Zostera marina. El  cuervo había estado escarbando entre las piedras.
  3. Sargassum muticum.
  4. Otras rocas cubiertas de algas.
  5. Y una poza mareal donde termina el alga y empieza la arena.
Para mañana, animales escondidos.

No comments:

Post a Comment

I'm having to moderate all comments because Blogger seems to have a problem notifying me. Sorry about that. I will review them several times daily, though, until this issue is fixed.

Also, I have word verification on, because I found out that not only do I get spam without it, but it gets passed on to anyone commenting in that thread. Not cool!

Powered By Blogger