Focus on Photography
Photo of the Week "leaping bottle-nose dolphin in the Santa Barbara Channel" by Bob Crum. Photo data: Canon 7DMKII camera on manual mode, ISO 800, Tamron 16-300mm lens @77mm, aperture f/9.0 and 1/1,000th of a second shutter speed.
Photo of the Week "leaping bottle-nose dolphin in the Santa Barbara Channel" by Bob Crum. Photo data: Canon 7DMKII camera on manual mode, ISO 800, Tamron 16-300mm lens @77mm, aperture f/9.0 and 1/1,000th of a second shutter speed.
A guessing game
Bob Crum
Bob Crum

It was so exciting I hardly know where to begin but begin I must. Last Sunday, aboard Island Packer's ship the Islander, I sailed to Fry's Harbor at Santa Cruz Island, Channel Islands National Park. So many photo ops. So much frustration!

The trip from Ventura Harbor to Santa Cruz Island requires crossing the Santa Barbara channel. Though not a travel column, a little background info is pertinent.

The Santa Barbara Channel, extending from Point Conception to Cape Colnett, Baja, CA, is an incredibly diverse and biologically productive ecosystem. Flowing between two land masses creates a transition zone. This transition zone promotes large concentrations of both biomass and species diversity. The upwelling provides unusually high levels of nutrients, especially macrozooplankton, which are one of the primary driving forces behind the Channel’s biological productivity and diversity. Thus it's a vast cafeteria for many predators including dolphin which on average need to eat 20-50 pounds of fish/day. And the munchies are plentiful in the Channel.

On the way to the island, we first encountered a pod of relatively rare Risso dolphins. First time seeing these cetaceans. As described by the Monterey Bay Aquarium, “Risso dolphins, like a battered boxer, the bulky, blunt-headed Risso's dolphin bear lots of scars. Its Latin species name griseus refers to the skin's ghostly gray-white mottling—an effect enhanced with age by extensive scarring made by the teeth of its own kind or by beaks and tentacles of squid, its preferred prey.” It was not a large pod. Difficult to photograph because they were not leaping, only cruising. Dorsal fins themselves are not exciting.

Closer to the island, we encountered a huge pod of the more common bottle-nose dolphin. I confess I need more experience photographing these frolicking animals. So many dolphins over a large area it's nearly impossible to know where to point the camera. Point over there, and they leap over here. Point here, and many suddenly leap over there. An exasperating guessing game. Luck also comes to mind. It's much more challenging to accomplish than one might imagine.

On to Fry's Harbor. But first a side trip up to the Painted Cave. Oh my, what a treat! Captain Luke took the big ship a little way into the cave. Interesting! Then back to Fry's Harbor. The Islander anchors 100 yards from shore. A small motorized skiff transports us six at a time to the beach. On the way, I got a photo of an osprey up on a cliff.

On the island, a naturalist led a hike through a dense oak grove through which a small creek flowed fed by a natural spring. Two species of oaks, the imported species from the mainland with sprawling limbs being the most photogenic. In the shade, an 1860's campground used by islanders of yore.

After many island photos, time to return. A few miles later, another huge pod of bottle-nose dolphin. After another exhaustive attempt to get the 'wowza' dolphin photo, I put the camera aside and just gleefully watched the fascinating creatures. If only I had a boat!

Photographically, because of adverse glare, I used a circular polarizing filter on the lens. Also, because the boat is in constant motion, and the dolphin always moving fast, I used a fast shutter speed. Proper exposure accomplished by adjusting aperture with ISO on auto.

So many exciting photographs from which to choose, it was difficult selecting just one for the photo of the week. Ultimately I selected a photo of the bottle-nose dolphin. I need to go again!

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