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Wednesday, April 29, 2020 | History

2 edition of Estimating the Hawaiian monk seal population on Laysan Island found in the catalog.

Estimating the Hawaiian monk seal population on Laysan Island

Brian W Johnson

Estimating the Hawaiian monk seal population on Laysan Island

  • 271 Want to read
  • 17 Currently reading

Published by The Commission, National Technical Information Service [distributor in Washington, D.C, Springfield, VA .
Written in English

    Subjects:
  • Monk seals,
  • Seals (Animals) -- Hawaii -- Laysan Island

  • Edition Notes

    StatementBrian W. Johnson and Patricia A. Johnson ; prepared for U.S. Marine Mammal Commission
    SeriesReport -- no. MMC-80/06, Report (United States. Marine Mammal Commission) -- no. MMC-80/06
    ContributionsJohnson, Patricia A, United States. Marine Mammal Commission, Aquatic Mammals Behavioral Research (Firm)
    The Physical Object
    Paginationv, 29 p. :
    Number of Pages29
    ID Numbers
    Open LibraryOL13607106M

    The Hawaiian monk seal occurs only in the Central Pacific, in the mostly uninhabited northwestern Hawaiian Islands, with a small breeding population inhabiting the main Hawaiian Islands Asked in. Most seals are on Laysan, Midway, Pearl and Hermes Atoll, French Frigate Shoals, and Lisianski. [20]The Hawaiian monk seal is critically endangered, [21] although its cousin species the Mediterranean monk seal (M. monachus) is even rarer, and the Caribbean monk seal (M. tropicalis), last sighted in the s, was officially declared extinct in June [22]Class: Mammalia. With an estimated population of 1,, the Hawaiian monk seal is one of the most endangered marine mammals in the world, and the rarest seal in US waters. Found nowhere else Around the main Hawaiian Islands, the National Oceanic and Atmospheric Administration (NOAA) estimates there are only monk seals in the entire island chain.


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Estimating the Hawaiian monk seal population on Laysan Island by Brian W Johnson Download PDF EPUB FB2

Get this from a library. Estimating the Hawaiian monk seal population on Laysan Island. [Brian W Johnson; Patricia A Johnson; United States. Marine Mammal Commission.; Acquatic Mammals Behavioral Research (Firm)]. Hawaiian Monk Seal Population Size by Island The range-wide total population estimate for was 1, seals.

There has been an increasing growth rate of 3% per year from Behavioral observations of the Hawaiian monk seal on Laysan Island were made between and Primary objectives included determination of population size, reproductive patterns and survival rates.

Individual seals were recognized by photographs of natural markings (particularly scar patterns) or by temporary bleach marks. Research Article Estimating Population Size for Hawaiian Monk Seals Using Haulout Data ALBERT L. HARTING,1 Harting Biological Consulting, Sandy Creek Lane, Bozeman, MTUSA JASON D.

BAKER, Pacific Islands Fisheries Science Center, National Marine Fish eries Service, NOAA Wasp Blvd #, Honolulu, HIUSA.

-Number of pups born and tagged at Laysan Island in and resighted through Numbers in parentheses equal the numbers of males and females, respectivelyMonk seal deaths at Laysan.

The Hawaiian monk seal population remained stable inwith close to 1, seals estimated across the species range. It was a good year for monk seal pups: pups were counted in the Northwestern Hawaiian Islands and 34 in the main Hawaiian Islands (including everyone’s favorite famous pup, "Kaimana").

The best estimate of the current total Hawaiian monk seal population is 1, seals—about 1, in the Northwestern Hawaiian Islands (from Nihoa to Kure Atoll), and about in the main Hawaiian Islands (from Ni'ihau to Hawai'i Island).

A non-invasive photographic technique was devel- oped to estimate the body mass of Hawaiian monk seals (Monachus schauinslandi). Newly weaned monk seal pups (n =.

BIBLIOGRAPHY OF THE HAWAIIAN MONK SEAL Estimating the Hawaiian monk seal population on Laysan Island book SCHAUINSLANDI MATSCHIE by George H.

Balazs Hawaii Institute of Marine Biology and Hawaiian monk seal on Laysan Island. Journal of Wildlife Management~ Carlquist, S. Renowned Hawaii artist Patrick Ching shares his knowledge and enthusiasm for Hawaiian monk seals in this colorful, engaging book for readers of all ages.

Ching provides readers with a close-up Estimating the Hawaiian monk seal population on Laysan Island book at the Hawaiian monk seal's habits and life cycle--from its beginnings as a lanky black pup to full maturity as an adult weighing more than by: from the Hawaiian monk seal sighting databases from six locations: French Frigate Shoals, Laysan Island, Lisianski Island, Pearl and Hermes Reef, Midway Atoll, and Kure Atoll (Fig.

The fundamental meth-ods employed were consistent among all sites and years. However, varying physiography among the.

40 Figure 1. Mean beach counts of Hawaiian monk seals (non-pups) at the main reproductive rookeries (excluding Midway Atoll), in the main Hawaiian Islands is, say, 40 ±10 seals (i.e., a coefficient of variation of Estimating the Hawaiian monk seal population on Laysan Island book, then an estimate of the.

The Hawaiian monk seal is the only seal native to Hawaii, and, along with the Hawaiian hoary bat, is one of only two mammals endemic to the islands. These monk seals are a conservation reliant endangered species. The small population of about 1, individuals is threatened by human encroachment, Class: Mammalia.

The endangered Hawaiian monk seal (Monachus schauinslandi) hauls out and breeds in the Northwestern Hawaiian Islands, (NWHI, Fig. The Southwest Fisheries Science Center, Honolulu Laboratory, National Marine Fisheries Service (NMFS), began research on Hawaiian monk seals at most major reproductive sites.

Correlation coefficients (r) of age and sex class-specific contact rates for Hawaiian monk seals (Neomonachus schauinslandi) estimated from four data sets: Laysan Island in, andand Lisianski Island in Standard and rank correlation coefficients are Cited by: 1. NMFS. Hawaiian Monk Seal (Monachus schauinslandi).

Stock Definition and Geographic Range. Laysan Estimating the Hawaiian monk seal population on Laysan Island book, Lisianski Island, Pearl and Hermes Reef, Midway Atoll, and Kure Atoll. a coefficient of variation of ), then an estimate of the minimum population size in the main Islands is 33 seals.

The minimum population size for the. Geology. Laysan is the second largest single landmass in the Northwestern Hawaiian Islands, after Sand Island at Midway was created by coral growth and geologic upshift. The fringing reefs surrounding the island cover about acres ( km 2).Lake Laysan, the acres ( km 2), brown, hypersaline lake in the island's interior, has varied in depth over the decades.

Table 3. Number of MHI monk seal births documented in Island Number of Births Niihau 19 Kauai 2 Oahu 5 Molokai 10 Kahoolawe 2 Hawaii 2 Total 40 Below is a plot of fitted age‐specific reproductive curves for four monk seal subpopulations (Fig. Three of the curves involve data exclusively from French Frigate Shoals, Laysan Island, and.

The ancient Hawaiian name was "llio holo I ka uaua" meaning "dog that runs in rough water." The Hawaiian monk seal is one of the most endangered marine mammals in the world, and the rarest seal or sea lion in US waters.

Weighing between pounds ( kg) and feet ( m) in length, females are slightly larger than males. Summary degree centrality statistics by age and sex class for Hawaiian monk seals (Neomonachus schauinslandi) at Laysan Island, Hawaii, USA, inshowing mean, SD, and minimum and maximum number of individuals with which each seal was observed associating.

N is the number of individuals in each age and sex class in the by: 1. Hawaiian monk seals typically haul out on sandy beaches. Population Global: An estimated to 1, individuals are all that remain of the Mediterranean monk seal. The Hawaiian Monk Seal population was observed to decline from 1, total individuals in to 1, in Over the past 50 years, the Hawaiian monk seal population has fallen more than 60%.

Fewer than Hawaiian monk seals remain in the wild. Compared to other endangered species, there are fewer Hawaiian monk seals in the wild than there are giant pandas. Tragically, the Hawaiian monk seal isFile Size: KB.

Most of the monk seal population is concentrated in the Northwestern Hawaiian Islands, but there are a handful of seals that live near the eight primary islands, including right here on the Big Island.

Hawaiian monk seals are protected under the Endangered Species Act, the Marine Mammal Protection Act and under state law in Hawai‘i. Adult monk seals are dark gray to brown on their back and silver to tan on their stomachs.

They grow up to 7 feet in length and weigh between and pounds. But sadly, the Hawaiian monk seal is in crisis. Biologists estimate the current population between 1, and 1, individuals. Even though monk seals are great hunters, very low. Monk seals are earless seals (true seals) of the tribe Monachini.

The tribe was first conceived by Victor Blanchard Scheffer in his book Seals, Sea Lions, and Walruses: A Review of the Pinnipedia. The two genera of monk seals, Monachus and Neomonachus, comprise three species: the Mediterranean monk seal (Monachus monachus), the Hawaiian monk seal (Neomonachus schauinslandi), and the Class: Mammalia.

Why Rare Hawaiian Monk Seals Are Lining Up to Get Their Shots On a summer day on the island of Kaua`i, a Hawaiian monk seal hauls his pound body out of Author: Kim Steutermann Rogers.

Common name: Hawaiian monk seal Hawaiian name: ‘ilio-holo-i-ka-ua-ua (dog that runs in the rough sea) Scientific name: Monachus schauinslandi – from Hugh Hermann Schauinsland, a German scientist who discovered the skull of an animal on Laysan Island in Distribution: Hawaiian Islands; Size: pounds ( kg), feet ( m) long; Diet: bottom-dwelling and reef fish.

The Hawaiian monk seal is the nation’s most endangered seal, and one of the world’s most endangered marine mammals. Firm support for its recovery should be one of NOAA’s highest priorities, and one that merits intense focus.

InNMFS adopted a revised Hawaiian monk seal recovery plan that projected a program budget need of over $7File Size: 4MB. SPECIES- Hawaiian Monk Seal (Monachus schauinslandi) CURRENT RANGE- Hawaiian Islands CURRENT THREAT- Human encroachment, entanglement in fishing nets, low levels of genetic variation CONSERVATION STATUS- Critically Endangered WHERE YOU CAN SEE THEM- Laysan, Midway, Pearl and Hermes Atoll, French Frigate Shoals, Lisianski and, occasionally, the beaches of Hawaii's Big Island.

The Hawaiian monk seal population was hunted to near extinction during commercial sealing expeditions in the midth century, and other opportunistic hunters further depeleted the surviving population during the late s and the early s, and the mnk seal was thought to be extinct by the early 20th century (Kenyon and Rice, ).

Endangered Hawaiian monk seals released back to Laysan Island after rehabilitation at Ke Kai Ola, a dedicated hospital for monk seals on Hawai‘i Island (Kailua-Kona, Hawai‘i – J ) – Two Hawaiian monk seal pups rescued on Laysan Island last NOAA researchers estimate the current monk seal population to be about 1,   Both seals were rescued on Laysan Island in the Northwestern Hawaiian Islands and treated for malnourishment at our hospital on the Big Island.

Hawaiian monk. Island formation. Throughout time, the Hawaiian Islands formed linearly from northwest to the southeast. A study was conducted to determine the approximate ages of the Hawaiian Islands using K–Ar dating of the oldest found igneous rocks from each island.

Kauai was determined to be about million years old, Oahu about million years old and the youngest island of Hawaii about Introduction: top. The Hawaiian monk seal’s specific name, Monachus schauinslandi, honors German scientist H.H.

Schauinslandi who described the species for the first time in (Reeves et al. ).Monachus schauinslandi is taxonomically classified as a member of the order Carnivora and the family Phocidae.

Along with the families Otariidae and Odobenidae, Phocidae are part of a group. There are now about monk seals in the Leewards, and the population has been shrinking for 25 years, making the seal among the world’s most imperiled marine mammals.

The monk seal. Population surveys currently estimate the total Hawaiian monk seal population to be individuals ( in the Northwestern islands and in the main Hawaiian Islands). III. Ecology. Both Mediterranean and Hawaiian monk seals are often described as “opportunistic” feeders because of their ability to exploit various food : Charles Littnan, Alexandros A.

Karamanlidis, Panagiotis Dendrinos. fewer Hawaiian monk seals in the wild than there are giant pandas. Tragically, the Hawaiian monk seal is perhaps the last hope for monk seals on the planet, as the Caribbean monk seal went extinct in the ’s and the Mediterranean monk seals population has fallen to about Size: KB.

Injuries observed on endangered Hawaiian monk seals (Monachus schauinslandi) at Laysan Island and French Frigate Shoals in the northwestern Hawaiian Islands in and were classified into six major types, based on the source of the wounds: mating attempts by adult male monk seals; nonmating aggressive interactions with other seals; attacks by large sharks; attacks by cookiecutter sharks Cited by: There is a small breeding population on the main Hawaiian Islands.

Rare monk seals sightings have been reported south of the Hawaiian Archipelago at Johnston Atoll, Wake Island and Palmyra Atoll. Monk seals will usually remain at the island of their birth. Low genetic diversity is also found in this species of around seals. To understand various ecosystem dynamics that could explain observed changes and differences in monk seal biomass at French Frigate Shoals (FFS) and Laysan (LAY), Ecopath with Ecosim (EwE) version modeling software was used to conduct two types of simulations, sensitivity (to understand the system) and hindcast (to evaluate drivers of monk seal population dynamics).

The seals were rescued last year in an emaciated state, one from Kure Atoll pdf another from Laysan Island, during NOAA Fisheries Hawaiian Monk Seal Research Program's field camp season. Two female Hawaiian monk seals are returned to the Northwestern Hawaiian Islands.

Cat Disease Threatens Endangered Monk Seals. On the beaches of the Hawaiian islands, monk seals are dying from a pathogen in cat feces that is carried to Author: Environmental Health News.Hawaiian monk seal researcher administers topical dewormer ebook to a juvenile monk seal at Laysan Island.

The prevalence and exposure to disease, parasites, and toxins is a major focus of research and recovery efforts for the Hawaiian monk seal.