10 reasons why data center should change water cooling pipe location

Open Letter to Mr. James Connaughton
Chief Executive Officer
Nautilus Data Technologies

Dear  Mr. Connaughton,

The Alameda City Council has granted you approval of moving forward with your data storage facility at Alameda Point.  Please reconsider the route for discharging warm water from the cooling system.  Instead of heading south under the Bay Trail and through the harbor near the ferry maintenance facility, send the water discharge pipe north to the Oakland Estuary.

As someone who was instrumental in protecting large tracts of the Pacific Ocean during your tenure as environmental advisor to President George W. Bush, I believe the alternative route will appeal to your marine conservation values. Continue reading “10 reasons why data center should change water cooling pipe location”

Great Egret stalks a lizard

Great Egrets are commonly seen wading along a shoreline, in marshes and wetlands waiting for fish to come near before catching them with a quick thrust of its bill.

Great Egrets primarily eat small fish.  However, their diet can also include reptiles such as lizards, amphibians, birds, small mammals, shrimp, worms, dragonflies, beetles, water bugs, and grasshoppers.

This particular Great Egret decided to stroll into the old campground at Alameda Point in search of food.  It walked slowly up to a Rosemary bush and stood there for about five minutes, occasionally making slight head movements, before plunging its head into the bush to catch a lizard.

After holding the lizard in its bill for a few minutes, it gulped down the lizard and proceeded very slowly to another bush.

Continue reading “Great Egret stalks a lizard”

Birds on the rocks – 2018

Pelican and cormorant on top of jetty at entrance to Seaplane Lagoon.
California Brown Pelican, juvenile, one or two years old, as indicated by all brown head, with Cormorant on Seaplane Lagoon jetty.

Continue reading “Birds on the rocks – 2018”

Osprey Family Thrives in Face of Adversity

Ospreys returned again this year to nest at Alameda Point’s Seaplane Lagoon.  But midway through the rearing process, the female became the sole provider and protector of her three chicks, after the male became entangled in fishing line.  Such osprey single parenting is unheard of.

Male osprey with fishing line and bobber. Credit: Phil Dauber.

Continue reading “Osprey Family Thrives in Face of Adversity”

Bottlenose dolphins visit Breakwater at Alameda Point

Bottlenose dolphins do not usually come to mind when thinking of wildlife at Alameda Point.  In fact, only three have been observed there in recent years, and those sightings were from canoes and kayaks.  But on July 24, two more dolphins were observed with two regulars meandering around next to Breakwater Island.  The standalone rock wall, or breakwater, is visible from Pier 3 where the USS Hornet Museum is berthed.

The first-time visitors were from Monterey Bay and identified by researchers with Golden Gate Cetacean Research (GGCR).  The group tracks the dolphins using a catalog of 91 dolphins showing individual markings, some with names. Continue reading “Bottlenose dolphins visit Breakwater at Alameda Point”

Great Egret fishing at Breakwater Beach

Photos of a Great Egret foraging for Yellowfin Gobies in the shallow mudflat next to Breakwater Beach at the southeast corner of Alameda Point.  After catching a Goby, the Egret would then have to fling the little fish into the air to maneuver the fish back to its mouth.  Photos are from Friday, February 9, 2018.

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Harbor seal numbers spike during herring spawning

Alameda Point’s harbor seal population fluctuates between single digits and 50 during most of the year on the specially-built harbor seal float.  But when the Pacific herring arrive in the winter to lay their eggs, many more seals arrive to feast on the herring, causing a sudden spike.  Last winter, a spike in seal numbers to a record 70 came on January 5, 2017, in the midst of the herring run.  This winter, the herring arrived sooner, in December, and so did more harbor seals, causing a spike to a new record of 73 on Christmas Eve and Christmas Day.

In the brief time span since the new harbor seal float was set in place, local monitors have assumed that it was simply the colder water temperatures that enticed greater numbers of seals to use the float in the winter.  But in fact, they discovered it’s not the full story.

It turns out that dropping water temperature indeed has an effect, but the effect is on the herring.  Ideal water temperature for herring spawning is between 50 and 53.6 degrees Fahrenheit.  The water temperature at Alameda Point dropped below 54 degrees the afternoon of December 16 and continued dropping another 2.3 degrees, according to data collected by the National Oceanic and Atmospheric Administration.  This brought on the herring run and, in turn, the voracious seals.

National Oceanic and Atmospheric Administration graph of water temperatures at Alameda Point between December 15, 2017, and January 5, 2018, with harbor seal graph added by Alameda Point Harbor Seal Monitors. Click on image to enlarge.

Continue reading “Harbor seal numbers spike during herring spawning”