Pacific sand crab ~ 11/25/13 ~ Asilomar Beach

Pacific mole crab / Pacific sand crab

Emerita analoga

They look like delicately patterned cracked egg shells. At first, I didn't think these pics were ideal as an ID entry, but it occurred to me that I tend to see the carapaces of sand crabs more often than actual live crabs, which has been late at night while looking for grunion.  Are they nocturnal?  I'm assuming the numerous carapaces are from a mass molt, rather than a mass die-off of sand crabs, but I don't really know. I'm always amazed how the composition of wrack changes through the seasons. Here's a mixture of sand crab carapaces, various red seaweeds, and surf-grass. It's nature's compost by the sea.

ps - In the first photo, directly behind the right carapace, the out-of-focus green surf-grass is covered in pink-colored crusting red algae called Melobesia mediocrus.

surf-grass ~ 09/01/12 ~ Asilomar Beach

surf-grass

Phyllospadix scouleri (possibly P. torreyi)
Zosteraceae

I thought I'd try my hand at IDing between the two Phyllospadix spp. found along the shores of Pacific Grove. This proved to be an exercise in extensive internet searching and comparing information. SEINet states P. scouleri blades can be slightly wider than P. torreyi by up to 2.5mm, significant when they can be as small as 0.5mm. I ignored this site's information on flowering and fruiting periods, because I've found seasonal descriptions are entirely subjective across different lifeforms (e.g. Don Roberson in his Monterey Birds book states semipalmated plovers start their fall migration by late June... June, fall, seriously? And don't get me started on all the incorrect flowering periods published for coastal land plants). Jepson e-Flora states P. scouleri does not have a narrow bract base, whereas P. torreyi does. I could not find a side by side comparison to see what is considered narrow or not. The closest I could find was this University of Washington's page of P. scouleri life history. It's too bad the creators of California Biota Website don't know the difference between female spathes and male spadices, which is all new terminology for me anyways. Although, they do have beautiful pictures. What I have shown in the first picture above is a female spathe with developing fruit. MBARI has a nice summary and clearly states P. scouleri usually has 1, sometimes 2 spathes, and P. torreyi can have 1-5 spathes. Since I only found 1 spathe, I can't use that as a distinguishing factor. In the end, I'm leaning towards P. scouleri simply based on the blade width. Now after all this searching this morning, I'm daydreaming and imagining the above surf-grass could make a lovely mermaid ponytail.

grunion greeting, 2011 #3

grunion greeting
new moon, 10:45-11:30, clear skies

This was the last of our grunion greeting for the year. Admittedly, we didn't put much effort into it after only seeing 2 grunion in the past 2 years and 9 visits. In 2009, we went out a total of 15 times and were marginally successful in finding grunion. That year we didn't mind the sleep deprivation that comes from late nights on the beach, often as late as 1:00 in the morning. As our schedules have become increasingly demanding, it's been harder and harder to keep the enthusiasm going. I've submitted all my findings... er, non-findings to Dr. Karen Martin's grunion greeting study at Pepperdine University.

Despite the lack of grunion sighting success, I'm glad we participated in the study. It got us out on the beach on a regular basis, something we never would have done, let alone at night. We've been able to notice the subtle changes on and around the beach, such as the flattening out of the beach surface itself and the addition of the neon blue lights to the pub building at the commercial wharf this year. I wondered if the bright lights affected the grunion runs on this particular beach as it is so bright and reflects in the water right where we used to spot grunion.

Above is the cement structure that I've mentioned so often in previous posts. It was our marker for where to turn around on the beach and head back to the commercial wharf. I didn't like hanging around, because people were often sleeping on the beach right there in the total darkness.

giant kelp with eel-grass and surf-grass
Macrocystis pyrifera with Zostera pacifica and Phyllospadix sp.
Zosteraceae

I had never heard the term wrack before participating in this study. Thankfully we didn't have to ID it to submit reports. We only had to make a general estimation of how much was present, if at all. Generally there was very little wrack during grunion greeting nights, which I think had to do with the calm summer waves. As a side note, many sites still recognize eelgrass as all belonging to Zostera marina, which technically has skinny leaf blades of only 1.5-12mm wide, whereas Z. pacifica has wider leaf blades 12-18.5mm.

monkeyface-eel
Cebidichthys violaceus

I think the most fun was having a chance to talk with local fishermen who we wouldn't normally meet. One fisherman told me the fish was a "monkey-faced spine fish." Thanks to the power of google I found the ID. It's a prickleback, not an eel, so spine fish is a good descriptor. There's something really fascinating about how information is passed from one fisherman to another in a verbal way complete with stories (and exaggerations). There's a whole subculture to fishing. Names and such are not always correct, but when it comes down to it, all that really matters is, "Is it good to eat?" I suggested to Karen that she might consider recruiting the local fisherman for watching grunion in Monterey. They're out late at night anyways. Who knows, we may or may not go grunion greeting next year.

ps - While searching for monkeyfaces online, I found this wacky, zany fishing music blog, the kind of gotta-love-people-who-are-real-yo: The Monkeyface News.

kelp ~ 09/28/10 ~ Asilomar Beach

giant kelp with feather boa kelp
Macrocystis pyrifera with Egregia menziesii

bull kelp with surf-grass
Nereocystis luetkeana with Phyllospadix sp.
Zosteraceae

wrack

Usually, this beach is totally clear of debris with the softest sand around (the kind that squeaks beneath your feet). Asilomar is located on the ocean side of the peninsula and is often very windy and chilly; this is why we rarely stop to get our toes sandy or wet. However, the surfers in their wetsuits don't seem to mind.

I had an epiphany about the seasonal nature of the ocean and beaches while figuring out how to write this blog post. I liken the wrack as an oceanic version of the fall of the leaves back east and elsewhere in the northern hemisphere (see my list o' links of autumn leaf colors). This past Thursday morning, I noticed the sound of the waves crashing, even though we've been experiencing very warm, non-stormy weather. Yep, I know, we live less than a block away from the Monterey Bay and you would think we always hear the ocean waves... but, we don't. In fact, for most of this summer it was very calm and quiet, hence why the constant crashing noise that started last week stands out. I had always assumed the sudden appearance of wrack had to do with storms, and yet there are no storms in sight. I've been trying to look into why we have bigger waves right now, but I haven't found much online information.

ps 10/07/10 - For added reference, Wednesday, September 22, 2010 at 8:09pm PDT marked the autumnal equinox. Also, September's full moon hit its peak Thursday, September 23, 2010 at 2:17am PDT. Not only is this a harvest moon, it's a super harvest moon because of the timing all in the same night. For more information, see bigsurkate's blog post or National Geographic's daily news.

pss 10/22/10 - For a nice blog post in a similar vein as this one, read Bread on the Water.

pss 07/31/11 - While doing another post, I discovered there are actually 2 species of Phyllospadix found locally: P. torreyi and P. scouleri. There is no way I can tell the difference. I've made the changes in the embedded links. Also as a personal choice, I've decided to keep the seagrass family name of Zosteraceae, rather than list the surfgrass under the pondweed family name of Potamogetonaceae.
pss 09/22/11 - It's that time of year again. The sound of the waves woke me up. Again, no storm in sight. We've actually had very sunny days since 09/12/11. Before that it had been the usual summer coastal fog. I noticed the waves were louder sometime last week. I'm still wondering where to go to look up information about the seasonal changes of the ocean.