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Duncan Murrell - A Whale of a Time

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Duncan Murrell - A Whale of a Time

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  • Puerto-Princesa-festivals32.tif
  • The most controversial logging in the Tongass has involved the roadless areas. Southeast Alaska is an extensive landscape, with communities scattered across the archipelago on different islands, isolated from each other and the mainland road system. The road system that exists in the region is in place because of the resource extraction history in the region, primarily established by the Forest Service to enable timber harvest. Once in place, these roads serve to connect local communities and visitors to recreation, hunting, fishing, and subsistence opportunities long into the future. However, installing roads in the vast wilderness areas of the Tongass is also a point of controversy for many in the American public, as reflected in the roadless area conservation movement, which has opposed further road construction on the grounds that it would promote habitat fragmentation, diminish wildlife populations and damage salmon spawning streams; they argue that existing roads are sufficient. <br />
Native Corporation Lands were designated by the Alaska Native Claims Settlement Act of 1971 (ANCSA). This Act conveyed approximately 44,000,000 acres (180,000 km2) of Federal land in Alaska to private native corporations which were created under the ANCSA. 632,000 acres (2,560 km2) of those lands were hand-picked old growth areas of the Tongass and are still surrounded by public National Forest land. These lands are now private and under the management of Sealaska, one of the native regional corporations created under the ANCSA. <br />
Transference of public National Forest land to a privately owned corporation removes it from protection by Federal law and allows the owners to use the land in whatever way they see fit without regard to the effects of the use on surrounding lands and ecosystems. This fact has caused much controversy involving the business interests of Native Regional Corporations and the personal interests of local Native and non-Native residents of Southeastern Alaska.
    Alaska-Tongass-National-Forest2.jpg
  • Here is one member of the “Fantastic Five”, as I dubbed them, feeding on the Morris Reef. It clearly illustrates the moment when the whale shuts its jaws very quickly and firmly, and any water contained is forcefully ejected out through the baleen plates, and any prey is trapped inside its mouth. Also clearly visible are the distinctive bumps or “tubercles” on the rostrum of a humpback whale that are found on no other species of whale. Each tubercle has a small hair or “vibrissae”, that probably act like whiskers as sensory organs for detecting their prey.
    Alaska-humpbackwhale-bubblenet10.jpg
  • This photo was taken near the Tlingit village of Kake on Kupreanof Island and illustrates the problems of the practice of clear-cut logging that persisted during the 1980s and 90s when I was based in Southeast Alaska. The extent of clear-cutting was much worse around native communities because the Alaska Native Claims Settlement Act of 1971 (ANCSA) awarded approximately 148,500,000 acres (601,000 km2) of Federal land in Alaska to private native corporations which were created under ANCSA. Transference of public National Forest land to a privately owned corporation removes it from protection by Federal law and allows the owners to use the land in whatever way they see fit without regard to the effects of the use on surrounding lands and ecosystems. This fact has caused much controversy involving the business interests of Native Regional Corporations and the personal interests of local Natives and non-Native residents of Southeastern Alaska, such as subsistence hunting and tourism.
    Alaska-humpbackwhale-bubblenet6.jpg
  • This is just before its distended throat contracts and the water is forced through its baleen plates as seen in the next photo. Clearly visible are the distinctive bumps or “tubercles” on the rostrum of a humpback whale that are found on no other species of whale. Each tubercle has a small hair or “vibrissae”, that probably act like whiskers as sensory organs for detecting their prey.
    Alaska-humpbackwhale-bubblenet9.jpg
  • This was the place where I observed and photographed their spectacular cooperative feeding using a bubble net the most. Their baleen plates can clearly be seen in this photo. They have about 330 pairs of dark gray baleen plates with coarse gray bristles on the inside hanging from the jaws. They are about 25 inches (0.6 m) long and 13.5 inches (34 cm) wide. They act as filters to trap their prey when they shut their mouths and expel the water.
    Alaska-humpbackwhale-bubblenet1.jpg
  • I became involved with the campaign to stop the excessive and heavily-subsidised logging, clearcutting and roadbuilding in Southeast Alaska in the 1980s. The Tongass Timber Reform Act, enacted in 1990, significantly reshaped the logging industry's relationship with the Tongass National Forest. The law's provisions cancelled a $40 million annual subsidy for timber harvest; established several new wilderness areas and closed others to logging; and required that future cutting under the 50-year pulp contracts be subject to environmental review and limitations on old-growth harvest. Alaska Pulp Corporation and Ketchikan Pulp Corporation claimed that the new restrictions made them uncompetitive and closed down their mills in 1993 and 1997, respectively, and the Forest Service then cancelled the remainders of the two 50-year timber contracts<br />
Unfortunately it is under threat once again. The Forest Service is currently preparing its largest auction of the Tongass in a decade to logging companies. In nearly six decades, loggers have cleared more than 700 square miles of the Tongass. Furthermore, the Forest Service has bulldozed more than 4,500 miles of roads through the forest for the logging companies to use.<br />
Legislation working its way through Congress could allow a single corporation, Sealaska, to log some of the best, oldest, most biologically-rich areas left in the Tongass. Sealaska Corporation, which has a history of clearcutting its lands, is seeking ownership of some of the most ecologically and biologically diverse parts of the Tongass National Forest. In fact, the lands targeted by Sealaska have more than ten times the habitat value of other Tongass forest land. Ketchikan lumber mill applied and was granted access to clear-cut 381 acres in one of the Tongass’ pristine roadless areas.
    Alaska-Tongass-National-Forest1.jpg
  • The most common predator of harbor seals is the killer whale. Other predators include sharks, sea lions, and land predators such as wolves, bears and coyotes. Since implementation of the Marine Mammal Protection Act in 1972, hunting has been restricted to Alaska Natives. Harbor seals play a crucial role in the culture and diet of Alaska Natives; the annual subsistence harvest of harbor seals in Alaska is about1,800 to 2,900 animals, with fewer seals harvested in recent years. The harbor seal's ability to damage or remove salmon from gillnets has caused conflicts between seals and commercial fishers in Alaska. This behavior creates economic losses for fishers and often fosters an antagonistic attitude toward seals. The Copper River Delta, the mouths of the Stikine and Taku rivers, and portions of Bristol Bay are areas with notable harbor seal-fishery conflicts. Sometimes seals are caught and killed or injured in fishing gear, primarily in gillnets and occasionally in crab pots.
    Alaska-harbour-seal4.jpg
  • Humpback whales (Megaptera novaeanglia) cooperative feeding using a bubble net, near Kupreanof Island, Stephen’s Passage, Southeast Alaska, USA.<br />
This photo was taken near the Tlingit town of Kake on Kupreanof Island and illustrates the problems of the practice of clear-cut logging that persisted during the 1980s and 90s when I was based in Southeast Alaska. The extent of clear-cutting was much worse around native communities because the Alaska Native Claims Settlement Act of 1971 (ANCSA) awarded approximately 148,500,000 acres (601,000 km2) of Federal land in Alaska to private native corporations which were created under ANCSA. Transference of public National Forest land to a privately owned corporation removes it from protection by Federal law and allows the owners to use the land in whatever way they see fit without regard to the effects of the use on surrounding lands and ecosystems. This fact has caused much controversy involving the business interests of Native Regional Corporations and the personal interests of local Natives and non-Native residents of Southeastern Alaska, such as subsistence hunting and tourism.
    Humpback whales-6-2.tif
  • Humpback whale (Megaptera novaeanglia) cooperative feeding using a bubble net, the Morris Reef, Chatham Strait, Southeast Alaska, USA.<br />
<br />
Here is one member of the “Fantastic Five”, as I dubbed them, feeding on the Morris Reef. It clearly illustrates the moment when the whale shuts its jaws very quickly and firmly, and any water contained is forcefully ejected out through the baleen plates, and any prey is trapped inside its mouth. Also clearly visible are the distinctive bumps or “tubercles” on the rostrum of a humpback whale that are found on no other species of whale. Each tubercle has a small hair or “vibrissae”, that probably act like whiskers as sensory organs for detecting their prey.
    Humpback whales-13-2.tif