Wednesday, August 13, 2008

Again?!?!?!?

Our beaches are closed yet again because of a sewage spill. Almost the entire shoreline is affected.

The curretn spill comes from leaking pipes in Watts. These pipes dumped 20,000 gallons of raw sewage into Compton Creek, which is a major tributary of the Los Angeles River. The LA River, of course, is the largest source of water and sediment on our beaches, and poor water quality there has a huge impact on the Long Beach coast.

Would tearing down the breakwater help in this situation? Perhaps, though indirectly. Increased water circulation at the beach might help flush out the sewage once it lands in our front door.

However, we might get a bigger bang-for-the-buck by improving upstream sewage infrastructure so spills like these happen less often.

Read the story in today's LA Times.

In the meantime, here's a photo of our beach in happier, more festive times:

Sunny beach day in Long Beach, with Pride in the distance

Monday, June 30, 2008

Return to Golden Shores

I made a quick trip back to Golden Shores to see if I could get any better "action shots" of birds in the wild.

And what a day it was!

Lots of foraging snowy egrets:
Snowy egret, Egretta thula-Landing 3

A great blue heron:
Great blue heron, Ardea herodias_0036

Quite a few caspian terns:
Caspian terns

It's great to watch these guys hover and dive for fish!
Hovering tern and egret, Port in background
(The industrial areas of the harbor make quite a backdrop for Golden Shores!)


A juvenile black-crowned night heron was hanging out in a nearby tree:
Juvenile black-crowned night heron, Nycticorax nycticorax
They do look kind of awkward perched like that, but they are quite at home there! Most of these wading birds start there lives in tree-bound rookeries. They nest in huge aggregations of multiple species. In fact, most of the herons and egrets you see were born in just a small number of areas. Protecting these few trees--even in highly urbanized areas--is critical to preserving the species for vast parts of the globe.

The highlight of the day was (for me!) an osprey that was soaring up the LA River!
Osprey_0092

These sea-eagles (as they are sometimes called) feed extensively on fish, and so few of the other birds took notice of this guy, as he was no threat to them.

Osprey at Golden Shores wetlands
In this photo, you can see how little the snowy egret cares about the osprey flying within a few feet of him!

Wednesday, May 21, 2008

Brief notes from Rainbow Lagoon

Remember how I derided Rainbow Lagoon for being overhyped as a natural area?

Well, this little park has surprised me again. I was walking from downtown Pine to the Long Beach Gay Pride celebration, when I noticed a huge school of bass swimming in the shallows!

School of fish in Rainbow Lagoon

Consultation with my ichthyological buddies have indicated that this was a school of mixed species, including sand bass (Paralabrax nebulifer, top) kelp bass (Paralabrax clathratus, bottom):
Closeup of fish in Rainbow Lagoon

There may have been other species as well!

In deeper (and, sadly, unphotographable) water, I saw a huge flatfish--almost certainly a California halibut (Paralichthys californicus). Definitely keep an eye out for these monsters next time you're by the lagoon!

Where did these fish come from? Did they swim in naturally with the tides? Or (I suspect) were they stocked by the Aquarium as a way of brining the ocean closer to the public?

If anyone knows, send me an email!

Tuesday, May 13, 2008

Dominguez Gap Wetlands

Long time, no post fellow Long Beachistanis!

Sorry about the cold shoulder... I've been--distracted. By things. Plus, there weren't too many wildernesses left to explore in Long Beach!

All that changed this past weekend, though. We have a brand new wetland!

The Dominguez Gap Wetlands were officially opened to the public this May.

Dominguez Gap Wetlands

These wetlands are located along the LA River south of Del Amo Boulevard, adjoining DeForest Park. But unlike DeForest, this isn't techinically a "park" and it isn't managed by the Long Beach Parks Department. Instead, it's managed by the LA County Department of Public Works.

Adjacent to the park, you can see the confluence of Compton Creek and the LA River:
Confluence of Compton Creek and the Los Angeles River

These wetlands aren't at all natural--they were constructed and serve a variety of purposes. Specifically, the wetlands are designed to treat stormwater (removing nutrients and metals before it enters the LA River and the Pacific Ocean. It will also help recharge the groundwater in the area. In addition, the wetland provides habitat for wildlife. And wetland-dependent wildlife is desparate for real estate in southern LA County! (You can learn more about constructed treatment wetlands in this PDF from the EPA).

Dominguez Gap Wetlands
As you can see, the wetlands are built so that water enters individual cells. In each cell, nutrients and pollutants are removed, before passing on to the next cell. As the water moves through the wetland, more and more pollutants are removed.

Rushes at the Dominguez Gap Wetlands
Tules and other wetland plants separate the cells.

The slopes of Dominguez Gap are flowering with a riot of colors right now.
Mixed flock (yellow-headed blackbirds, red-winged blackbirds, tricolored blackbirds starlings) among yellow lupines
The yellow spikes of flowers are false-lupines (Thermopsis macrophylla). In addition, poppies, sages, chia, and limnanthus were flowering profusely.

Hummingbird sage
This hummingbird sage (Salvia spathacea) is more typical of oak-woodland habitat.

The landscapers were clearly going for more of a "grassland" than coastal sage-scrub, which may have been more appropriate. But I'm sure they had their reasons. No doubt the appearance of the wetlands will change drastically as the plants duke it out with each other (and the inevitable invasion of mustards and other weeds). Sapling cottonwoods and sycamores may eventually tower over the whole park.

The plants may have been utterly delicious to these caterpillars:
CaterpillarsFuzzerpillar

Not sure which species they were, but there were hundreds of them on the trails!
Perhaps some would turn into mourning cloaks, like this one I saw:
Mourning cloak


Needless to say, the birds weren't letting the abundance go to waste, as this mockingbird shows us:
Defending the worm

The birdlife was fantastic. I saw huge flocks of blackbirds, including red-winged, tricolored, and yellow-headed blackbirds.

Red-winged blackbird, Agelaius phoeniceus
Red-winged blackbirds (Agelaius phoeniceus) are common birds in marshes, and will probably do well at Dominguez Gap. Their songs are beautiful and evocative.

Tricolored blackbird, Agelaius tricolor
Tricolored blackbirds (Agelaius tricolor) are much rarer (in fact, they are species of special concern in California). They have similar wings (with white replacing the yellow on the epaulets), but the black is also much glossier.

Flock of yellow-headed blackbirds, Xanthocephalus xanthocephalus_0112
Yellow-headed blackbirds (Xanthocephalus xanthocephalus) were new to me! They traveled in the largest flocks (which included the other species of blackbirds, as well as a few starlings). Very cool-looking creatures!

Some other neat birds at this park:

American goldfinch (Carduelis tristis)
American goldfinch (Carduelis tristis)

Lesser goldfinch (Carduelis psaltria)
Lesser goldfinch (Carduelis psaltria). It's distinguished from the American goldfinch by its larger black cap.

Juvenile double-crested cormorant (Phalacrocorax auritus)
Double-crested cormorant (Phalacrocorax auritus)

Mallard family
A mother mallard and ducklings!

Long Beach Cowboys
Oh, and cowboys!

Saturday, September 22, 2007

Los Cerritos Wetlands--what's new?

Wedding venues and wedding vendorsCommunityWalk Map - Los Cerrtios Wetlands


I haven't yet written up a post for the Los Cerritos wetlands, in east Long Beach, because access to this site is restricted, and I haven't yet had the opportunity.

But I have been keeping abreast of the news concerning this parcel, perhaps the only original wetland remaining in Long Beach (certainly the only one of any significant size).

Located on the Cerritos Channel (a tributary of the San Gabriel River), the Los Cerritos Wetlands are the subject of great controversy. The current ownership is a patchwork of city and state agencies, although the balance is privately held by the Bixby Company. The wetlands themselves are off-limits to development.

The fate of the upland areas, however, are in jeopardy. These areas are, of course, former wetlands. And there are plans to restore the marsh to recreate a portion of the extensive marshes that once existed in southeast Long Beach and northern Orange County. This project would rival in scale the restoration of the Bolsa Chica wetlands in Huntington Beach, and represent perhaps the only opportunity for such a large-scale wetland restoration.

The Home Depot has other plans, of course. They would like to build a large store in the center of these wetlands.

Supporters of the project point out that there currently no large hardware stores in the City of Long Beach, convienently ignoring the two Home Depots and the Lowe's Hardware in Signal Hill (that munchkin to our city donut). No Long Beach resident has to drive more than three miles to one of these stores. (Don't believe me? Check out this map on google.)

Our City Council supports this project, of course. Even though Long Beach residents have many nearby big-box stores to patronize, the sales taxes (an important source of revenue since Prop 13 dried up revenue from property taxes) go to Signal Hill, not us. Even our normally progressive and environmentally foreward thinking councilmembers (I'm specifically referring to 2nd District rep Suja Lowenthall here) voted to support the draft Environmental Impact Report. This joke of a document claimes to find "less than signfiicant" impacts to noise, traffic, aesthetics, historic resources, and natural resources. (Access the documents here.)

Fortunately, the California Coastal Commission isn't buying it. Staff at the Commission ruled that by accepting the EIR, the City allowed this area, zoned for industrial uses (it's currently a tank farm for oil extraction), allowed commercial development and violated open space requirements determined by the Local Coastal Program. If the Commission accepts the staff's findings (which they often do, unless outside pressure is applied), they will have to draft a new EIR mitigating loss to biological and other resources.

Read about it in the Press Telegram here.

Wednesday, August 22, 2007

Rainbow Lagoon

CommunityWalk Map - Rainbow Lagoon


I debated whether or not to include Rainbow Lagoon as a natural area. No doubt, the interpretive signs around the lagoon tells you that it is a haven for wildlife. There is half a truth to what they say. But that means that there is also a big fat half-lie too.

There is very little natural habitat here. The upland areas are mostly covered with lawns and non-native palm trees. It's a very urban park here, and there isn't to support wildlife here.

In the last century, most of this area was open ocean. The semi-circular Rainbow Pier was created in the 1920s, along with the Long Beach Municipal Auditorium. Soon after, the City began filling in the open water behind the pier. With the decline of Long Beach's downtown in the 1970s and 1980s, the City undertook aggressive revitalization plans, which included massive filling of the area behind the pier, to create the modern-day landscape.

Thus, Rainbow Lagoon is the vestige of the sheltered cove that was once protected by Rainbow Pier.

Oceanic salt water fills Rainbow Lagoon via underground pipes and culverts. This keeps a marine, but wave-free environmnent. In some ways, this is similar to natural lagoons (such as Malibu Lagoon) where waves are cut off by natural sand bars, which come and go with the seasons. In a natural state, this still water would be conducive the establishment of salt marsh plants, like Spartina foliosa. However, there are none to be found here.


In contrast to a natural lagoon, Rainbow Lagoon is paved with concrete and in general has a very hard "edge" which prevents the establishment of plants. As you can see in the picture above, there is no gradual shift from deep to shallow water; these gradients normally create a variety of depths, which are essential to a diverse fish community with species of different sizes. The far edge in the photograph is rocky, which adds a little diversity. But the hard substrate again does not allow plants to establish. No doubt the plant-free environment is an intentional component of the park management, as such plants could create nuissances in such an urban environment.



The blunted tidal inputs creates other problems for the lagoon: lack of oxygen. Wave energy and fresh inputs of ocean water would normally keep the oxygen levels high. Making matters worse, the concrete lining makes the water heat up in the sun, further depleting oxygen. To prevent oxygen levels from getting too low (which would result in massive fish-kills), water is agitated and circulated by fountains. These fountains also improve the aesthetics of the park.



The dense urban surroundings contribute a lot of pollution to the park, but vigilant maintenance keeps out most litter. Still, a lot of the junk that winds up in the lagoon contributes nutrients, like nitrate. These nutrients promote algae growth, which can be unsightly, odorous, and further deplete oxygen (remember: algae and other plants only produce oxygen when they are photosynthesizing--at night they consume oxygen, just like most living things).






The park is much more welcoming for human inhabitants than wildlife. There is a beautiful winding path that take you over colorful bridges, and paddle boats to take you over the water. It is a lovely park, just not wondeful for wildlife, notwithstanding this semi-informative interpretive sign:

More than a pond


And, in the end, the park is far better than a sterile lawn in terms of wildlife. I came across a green heron (Butorides viriscens) catching a small fish in the lagoon! These guys aren't exactly rare, but nor are they that commonly seen.

Get ready for Coastal Cleanup Day 2007

Shipwrecked
Trash on our beautiful beach


Sunday, September 15, 2007 is California's Coastal Cleanup Day.

Why not devote half an hour to making Long Beach a more beautiful place? All you have to do is show up, and pick up trash you find along the beach.

Something is going on at nearly every stretch of the beach in Long Beach. In addition, there are inland sites along the Los Angeles River, and at the ponds in El Dorado Park. Remember: Trash anywhere on the strees in Long Beach will eventually wind up on the coast! So you can clean up the coast anywhere in the City. I'll post details about exact locations once they are known.

Coastal Cleanup Day is organized by the California Coastal Comission.

I participated in this event in 2006 at Alamitos Beach. So what did I think of it?

-Yes, it's kind of futile to think that one day of cleaning will have much of an impact. In fact, the beach didn't look any cleaner immediately after we finished.
-Some people don't quite get it. Some jerk dumped piles of moldy bread on the beach, and none of the volunteers thought it was littering until I pointed out to them that food on the beach attracts lots of rats.
-It's a great experience in self-education. There is FAR more litter on our beach than you might ever expect. And yes, it is all harmful to wildlife.
-It's a great public eductaion. If a man or woman sees hundreds of people cleaning up the beach, they may realize that the beach is something to value. Usually, people are ashamed to think someone else is cleaning up after them, and they will be more responsible with their own trash.
-They ask you to tally up all the pieces of trash you pick up. I think it's a waste of time and stupid. But for some people, it makes the task fun. I "guestimated" my numbers at the end. How many cigarette butts did you pick up? Eight billion?

By the way, they usually have awesome signs for the event. Last year's featured these cool wildlife cards:


The Cig-Egrett



The Spork Crab