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Summary of 2016 Reef Fish Surveys Around Kahoolawe Island 1
doi:10.7289/V5/DR-PIFSC-17-011 Summary of 2016 Reef Fish Surveys around Kahoolawe Island 1 Results and information presented here summarize data gathered by the Coral Reef Ecosystem Program (CREP) of NOAA’s Pacific Islands Fisheries Science Center and partners during 2 days of reef fish and habitat surveys around Kahoolawe Island in July/August 2016. Surveys were conducted as part of the NOAA National Coral Reef Monitoring Program. Surveys were conducted using a standard sampling design and method implemented by NOAA’s Pacific Reef Assessment and Monitoring Program (Pacific RAMP) since 2009. In brief, pairs of divers record numbers, sizes, and species of fishes inside adjacent 15m-diameter ‘point- count’ cylinders and estimate benthic cover by functional groups (e.g. ‘coral’, ‘sand’). Because it is unpopulated and protected, Kahoolawe is an important reference location in in the main Hawaiian Islands and may also be a significant source of larvae and fish recruits for other parts of Maui-nui and perhaps beyond. Therefore, CREP hopes to routinely survey Kahoolawe reefs during future monitoring efforts. However, as 2016 was the first year for Kahoolawe surveys, we have a relatively small sample size there - 24 sites - in comparison to other Main Hawaiian Islands (MHI: between 107 and 257 survey sites per island). Main conclusions and observations: • Reef fish biomass was high at most sites we visited in Kahoolawe, with mean island-wide biomass higher than at any other of the MHI, although only marginally higher than at Niihau. Biomass tended to be slightly higher at sites along the southern section of the island. -
Demartini NWHI Overview for CRSAW (Feb 1
NOWRAMP Overview Ed DeMartini NOAA Fisheries, PIFSC • Objectives • Design & Status of Surveys • Major Patterns Northwestern Hawaiian Islands 99 9 9 99 9 9 9 9 NWHI Survey Objectives • Qualitative reconnaissance of ichthyofauna; describe relative abundance, assemblage structure • Initial quantitative assessment of both economic and ecologically interacting resources (corals, algae, macrobenthos as well as fishes); to provide baseline characterization of biota • Subsequent monitoring of target taxa at select representative stations; to enable detection of major changes over decadal time frame Summary of Design Elements • Develop sampling and analysis designs; standardize data collection protocols – size- and species/taxon- specific tallies per unit area • graded bins: by cm (< 5 cm), by 5 cm (6-50 cm), …by 25 cm (> 100 cm TL) – station(=dive): 3, 25-m long x 4- or 8- m wide belt transects, plus 4, 10- m radius (5-min) SPCs, apportioned among 3 divers • belts: total 600 m2 area for “large” (> 20 cm Total Length, TL) fishes • belts: total 300 m2 area for “small” (< 20 cm TL) fishes • SPCs: total @ 1257 m2 area (fish > 25 cm TL only) – followed by @ 3,000 m2 Roving Diver Survey • Analysis Design – abundance (N, biomass) for baseline assessment – density for monitoring temporal change – stratified by major habitat within reef (eg, fore-, back-reef, lagoonal patch at atolls) Sampling & Analysis Design Summary (cont’d) – at least 50% hard substrate – number of stations proportional to reef-area (and variance of stratum) – all sampleable reef quadrants (emphasis on leeward for monitoring) – distribute among-observer bias (< 15%) across stations and tasks – control for seasonality (eg, in recruitment) by design • differs among NWHI and other reef-systems NOWRAMP Cruise-Effort • 5-cruise baseline assessment • 25-mo period from Sep 00 to Oct 02 – Sep-Oct 00: NOAA’s Townsend Cromwell (TC00-10) & R/V Rapture – Sep 01: Cromwell (TC01-11); FFS, Maro Reef – Sep-Oct 02: Cromwell (TC02-07) & Rapture • Single monitoring cruise thus far – Jul-Aug 03: Oscar E. -
Geology of Hawaii Reefs
11 Geology of Hawaii Reefs Charles H. Fletcher, Chris Bochicchio, Chris L. Conger, Mary S. Engels, Eden J. Feirstein, Neil Frazer, Craig R. Glenn, Richard W. Grigg, Eric E. Grossman, Jodi N. Harney, Ebitari Isoun, Colin V. Murray-Wallace, John J. Rooney, Ken H. Rubin, Clark E. Sherman, and Sean Vitousek 11.1 Geologic Framework The eight main islands in the state: Hawaii, Maui, Kahoolawe , Lanai , Molokai , Oahu , Kauai , of the Hawaii Islands and Niihau , make up 99% of the land area of the Hawaii Archipelago. The remainder comprises 11.1.1 Introduction 124 small volcanic and carbonate islets offshore The Hawaii hot spot lies in the mantle under, or of the main islands, and to the northwest. Each just to the south of, the Big Island of Hawaii. Two main island is the top of one or more massive active subaerial volcanoes and one active submarine shield volcanoes (named after their long low pro- volcano reveal its productivity. Centrally located on file like a warriors shield) extending thousands of the Pacific Plate, the hot spot is the source of the meters to the seafloor below. Mauna Kea , on the Hawaii Island Archipelago and its northern arm, the island of Hawaii, stands 4,200 m above sea level Emperor Seamount Chain (Fig. 11.1). and 9,450 m from seafloor to summit, taller than This system of high volcanic islands and asso- any other mountain on Earth from base to peak. ciated reefs, banks, atolls, sandy shoals, and Mauna Loa , the “long” mountain, is the most seamounts spans over 30° of latitude across the massive single topographic feature on the planet. -
Photographing the Islands of Hawaii
Molokai Sea Cliffs - Molokai, Hawaii Photographing the Islands of Hawaii by E.J. Peiker Introduction to the Hawaiian Islands The Hawaiian Islands are an archipelago of eight primary islands and many atolls that extend for 1600 miles in the central Pacific Ocean. The larger and inhabited islands are what we commonly refer to as Hawaii, the 50 th State of the United States of America. The main islands, from east to west, are comprised of the Island of Hawaii (also known as the Big Island), Maui, Kahoolawe, Molokai, Lanai, Oahu, Kauai, and Niihau. Beyond Niihau to the west lie the atolls beginning with Kaula and extending to Kure Atoll in the west. Kure Atoll is the last place on Earth to change days and the last place on Earth to ring in the new year. The islands of Oahu, Maui, Kauai and Hawaii (Big Island) are the most visited and developed with infrastructure equivalent to much of the civilized world. Molokai and Lanai have very limited accommodation options and infrastructure and have far fewer people. All six of these islands offer an abundance of photographic possibilities. Kahoolawe and Niihau are essentially off-limits. Kahoolawe was a Navy bombing range until recent years and has lots of unexploded ordinance. It is possible to go there as part of a restoration mission but one cannot go there as a photo destination. Niihau is reserved for the very few people of 100% Hawaiian origin and cannot be visited for photography if at all. Neither have any infrastructure. Kahoolawe is photographable from a distance from the southern shores of Maui and Niihau can be seen from the southwestern part of Kauai. -
Molokai Hawaii Forgotten
Molokai -Forgotten By ETHEL A. STARBIRD NATIONAL GEOGRAPHic sENIOR STAFF Photographs by RICHARD Casting away care, Sister Richard Marie takes a day off near Molokai's leprosy hospital, where she has worked Hawaii since 1960. Independent, resourceful, generous, she shares the best qualities A. COOKE III of Hawaii's most unspoiled major island. 189 Like thirsty giants, the volcanic peaks of Molokai's eastern end steal rainfall from its flat, dry western end. Polynesians from the Marquesas Islands came to Hawaii about 1,200 years ago. They eventually settled on this island in numbers National Geographic, August 1981 far greater than today'll 6,000 population. The semicircular walls of coral and basalt seen in the shallow waters in the foreground enclose fishponds once used to capture and fatten mullet and other saltwater species for island royalty. Molokai-Forgotten Hawaii 191 Beyond the farthest road a primeval world unfolds in the lush valleys of the northeastern coast. The chill waters of Kahiwa Falls (left) drop 1,750 feet to the sea in Hawaii's longest cascade. Deep in the island's forest reserve, spray from another waterfall (above) mingles with the scent of eucalyptus and wild ginger. Amaumau ferns (right, center) stand as tall as six feet. For centuries, Molokai was revered as a place where religious rituals were performed by powerful kahuna, or priests. One of the most famous, Lanikaula, is said to be buried in a grove of kukui trees near the island's eastern tip (below right). To make lamp oil, Hawaiians traditionally took nuts from the kukui, now a symbol of Molokai. -
Ethnohistory of Puna
Research in Action: Ethnohistory of Puna: Davianna Pōmaikaʻi McGregor Praxis: exercise or practice of an art, science or skill. Praxis distinguishes Ethnic Studies from the long-established disciplines of the social sciences. Ethnic Studies faculty are committed to placing research at the service of the community and challenging students to examine and analyze contemporary issues of concern to Hawaiʻi’s ethnic communities from diverse perspectives. The clash between the beliefs, customs, and practices of Hawaiian descendants of Pele (Hawaiian goddess of the volcano) and the developers of geothermal energy is one of the issues which drew upon the resources of Ethnic Studies faculty and students.1 The issue evolved as the federal and state governments partnered with private corporations to clear the largest remaining lowland rainforest in Hawaiʻi for geothermal wells and power plants. In response, Hawaiians filed several civil suits, organized religious ceremonies in the volcanic rainforest, produced documentary films and joined with environmentalists in public protests. A key turning point in the struggle was a ruling by the US federal court that an Environmental Impact Study (EIS) was required for the project to proceed. Where proposed development projects funded by the federal government affect native peoples, new historic preservation laws mandated the inclusion of a cultural impact study in the EIS. Thus, for the first time since the passage of the new laws, a cultural impact study was conducted for native Hawaiians in Hawaiʻi. The First Cultural Impact Study on Native Hawaiians University of Hawaiʻi faculty from the Ethnic Studies Department, the Department of Urban and Regional Planning and the School of Social Work were contracted to conduct the study.2 The team drew upon the individual skills and experiences of their faculty and developed a multi-method approach for the study. -
Volcanic and Seismic Hazards on the Island of Hawaii
U.S. Department of the Interior / U.S. Geological Survey Volcanic and Seismic Hazards on the Island of Hawaii Volcanic and Seismic Hazards on the Island of Hawaii Lava flows entered Kalapana Gardens in December 1986. Front Cover: View of Kapoho village during the 1960 eruption before it was entirely destroyed. (Photographer unknown) Inside Front Cover (Photograph by J.D. Griggs) For sale by the U.S. Government Printing Office Superintendent of Documents, Mail Stop: SSOP, Washington, DC 20402-9328 ISBN 0-16-038200-9 Preface he eruptions of volcanoes often have direct, dramatic effects on the lives of people and Ton their property. People who live on or near active volcanoes can benefit greatly from clear, scientific information about the volcanic and seismic hazards of the area. This booklet provides such information for the residents of Hawaii so they may effectively deal with the special geologic hazards of the island. Identifying and evaluating possible geologic hazards is one of the principal roles of the U.S. Geological Survey (USGS) and its Hawaiian Volcano Observatory. When USGS scientists recognize a potential hazard, such as an impend ing eruption, they notify the appropriate govern ment officials, who in turn are responsible for advising the public to evacuate certain areas or to take other actions to insure their safety. This booklet was prepared in cooperation with the Hawaii County Civil Defense Agency. Volcanic and Seismic Hazards: Interagency Responsibilities Hawaii County National Park } Civil Defense C Service ./ Short-term hazard evaluation for the agencies responsible for public safety. Information on volcanic U.S. -
Hawaii's , Kaho`Olawe Island Section 319 Success Story
Section 319 NONPOINT SOURCE PROGRAM SUCCESS STORY Restoring Native Vegetation Reduces SedimentHawaii Entering Coastal Waters Dry environmental conditions combined with a long history of human Waterbody Improved land use have resulted in severe erosion on Kaho`olawe. Much of the island has been reduced to barren hardpan, and sediment-laden runoff affects nearshore water quality and threatens the coral reef ecosystem. Efforts to minimize erosion and restore native vegetation in two watersheds on Kaho`olawe (Hakioawa and Kaulana) have reduced the amount of sediment entering the stream/gulch systems and coastal waters and have improved the quality of coastal waters, coral reef ecosystems and native wildlife habitat. Problem The island of Kaho`olawe, the smallest of the eight main Hawaiian Islands, is approximately 7 miles southwest of Maui. Kaho`olawe lies within the rain shadow of the volcanic summit of Maui. The island has a unique history. Evidence sug- gests that Hawaiians arrived as early as 1000 A.D. Kaho`olawe served as a navigational center for voyaging, an agricultural center, the site of an adze quarry, and a site for religious and cultural ceremo- nies. More recently, Kaho`olawe was used as a penal colony, a ranch (1858–1941), and a bombing range Figure 1. A lack of vegetation leads to excessive erosion by the U.S. Navy (1938–1990). The island was also on Kaho’olawe, which in turn home to as many as 50,000 goats during a 200-year causes sediment loading into period (1793–1993). Throughout the ranching period, adjacent marine waters. uncontrolled cattle and sheep grazing caused a substantial loss of soil through accelerated erosion. -
Numerical Model 39 4.2 Results of the Hawaiian Islands Response to Generalized Input Approaching from Alaska 41
NOAA-JTRE-167 .. ,. HIG-76-6 · A NUMERICAl STUDY OF .THE TSU.NAMI RESPONSE OF THE HAWAIIAN ISLANDS By EDDIE N. BERNARD MAY 1976 HAWAII INSTITUTE OF GEOPHYSICS UNIVERSITY OF HAWAII, HONOLULU and JOINT TSUNAMI RESEARCH EFFORT PACIFIC MARINE ENVIRONMENTAL LABORATORY ENVIRONMENTAL RESEARCH LABORATORY, NOAA HAWAII INSTITUTE OF GEOPHYSICS UNIVERSITY OF HAWAII NOAA-JTRE-167 HIG-76-6 A NUMERICAL STUDY OF THE TSUNAMI RESPONSE OF THE HAWAIIAN ISLANDS* By Eddie N. Bernard May 1976 Hawaii Institute of Geophysics University of Hawaii, Honolulu and Joint Tsunami Research Effort Pacific Marine Environmental Laboratory Environmental Research Laboratories. NOAA * A D I SS ERTATION SUBMITTE D TO THE GRADUATE DIVISION OF TEXA S A&M 11 NIV £RS ITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGR E E OF DOCTOR OF PHILOSOPHY IN OCEANOGRAPH~ AUGU S T 1 876 . ) u~:~~~~ Di recUr Di r<ector' Joint Tsunami Research Effort Hawaii Institute of Geophysics ABSTRACT The response of linearized long waves to the eight major Hawaiian Islands is investigated numerically using a mathematical model of the island system. A spline interpolation scheme ~s utilized to convert the actual soundings of the island bathymetry to a 5.5 km square grid closely approximating the topography of the islands. A time-marching, central difference, explicit scheme is used to evaluate the wave field by the linear, long wave, Eulerian equations of motion and continuity ~n Cartesian coordinates for a frictionless, homogeneous fluid. The condition of no normal flow is employed at the island shorelines and a localized interpolation technique is utilized at the outer boundary to simulate a free-flow boundary. -
RECORDS of the HAWAII BIOLOGICAL SURVEY for 1994 Part 2: Notes1
1 RECORDS OF THE HAWAII BIOLOGICAL SURVEY FOR 1994 Part 2: Notes1 This is the second of two parts to the Records of the Hawaii Biological Survey for 1994 and contains the notes on Hawaiian species of plants and animals including new state and island records, range extensions, and other information. Larger, more comprehensive treatments and papers describing new taxa are treated in the first part of this volume [Bishop Museum Occasional Papers 41]. New Hawaiian Plant Records. I BARBARA M. HAWLEY & B. LEILANI PYLE (Herbarium Pacificum, Department of Natural Sciences, Bishop Museum, P.O. Box 19000A, Honolulu, Hawaii 96817, USA) Amaranthaceae Achyranthes mutica A. Gray Significance. Considered extinct and previously known from only 2 collections: sup- posedly from Hawaii Island 1779, D. Nelson s.n.; and from Kauai between 1851 and 1855, J. Remy 208 (Wagner et al., 1990, Manual of the Flowering Plants of Hawai‘i, p. 181). Material examined. HAWAII: South Kohala, Keawewai Gulch, 975 m, gulch with pasture and relict Koaie, 10 Nov 1991, T.K. Pratt s.n.; W of Kilohana fork, 1000 m, on sides of dry gulch ca. 20 plants seen above and below falls, 350 °N aspect, 16 Dec 1992, K.R. Wood & S. Perlman 2177 (BISH). Caryophyllaceae Silene lanceolata A. Gray Significance. New island record for Oahu. Distribution in Wagner et al. (1990: 523, loc. cit.) limited to Kauai, Molokai, Hawaii, and Lanai. Several plants were later noted by Steve Perlman and Ken Wood from Makua, Oahu in 1993. Material examined. OAHU: Waianae Range, Ohikilolo Ridge at ca. 700 m elevation, off ridge crest, growing on a vertical rock face, facing northward and generally shaded most of the day but in an open, exposed face, only 1 plant noted, 25 Sep 1992, J. -
Mechanism of the 1975 Kalapana, Hawaii, Earthquake Inferred from Tsunami Data
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 104, NO. B6, PAGES 13,153-13,167, JUNE 10, 1999 Mechanism of the 1975 Kalapana, Hawaii, earthquake inferred from tsunami data Kuo-Fong Ma Institute of Geophysics, National Central University, Chung-Li, Taiwan Hiroo Kanamori Seismological Laboratory, California Institute of Technology, Pasadena Kenji Satake Seismotectonics Section, Geological Survey of Japan, Tsukuba, Japan Abstract. We investigated the source mechanism of the 1975 Kalapana, Hawaii, earthquake (Ms= 7.2) by modeling the tsunamis observed at three tide-gauge stations, Hilo, Kahului, and Honolulu. We computed synthetic tsunamis for various fault models. The arrival times and the amplitudes of the synthetic tsunamis computed for Ando's fault model (fault length= 40 km, fault width= 20 km, strike= N70°E, dip= 20°SE, rake= -90°, fault depth= 10 km, and slip= 5.6 m) are - 10 min earlier and 5 times smaller than those of the observed, respectively. We tested fault models with different dip angles and depths. Models with a northwest dip direction yield larger tsunami amplitudes than those with a southeast dip direction. Models with shallower fault depths produce later first arrivals than deeper models. We also considered the effects of the Hilina fault system, but its contribution to tsunami excitation is insignificant. This suggests that another mechanism is required to explain the tsunamis. One plausible model is a propagating slump model with a l m subsidence along the coast and a 1 m uplift offshore. This model can explain the arrival times and the amplitudes of the observed tsunamis satisfactorily. An alternative model is a wider fault model that dips l 0°NW, with its fault plane extending 25 km offshore, well beyond the aftershock area of the Kalapana earthquake. -
Northwestern Hawaiian Islands/Kure Atoll Assessment and Monitoring Program
Northwestern Hawaiian Islands/Kure Atoll Assessment and Monitoring Program Final Report March 2002 Grant Number NA070A0457 William j. Walsh1, Ryan Okano2, Robert Nishimoto1, Brent Carman1. 1 Division of Aquatic Resources 1151 Punchbowl Street Rm. 330 Honolulu, HI 96813 2 Botany Department University of Hawai`i Mānoa Honolulu, HI 96822 2 INTRODUCTION The Northwest Hawaiian Islands (NWHI) consist of 9,124 km2 of land and approximately 13,000 km2 of coral reef habitat. They comprise 70% of all coral reef areas under U.S. jurisdiction. This isolated archipelago of small islands, atolls, reefs and banks represent a unique and largely pristine coral reef ecosystem. The islands support millions of nesting seabirds and are breeding grounds for the critically endangered Hawaiian monk seal and threatened green sea turtle. The reefs include a wide range of habitats and support a diverse assemblage of indigenous and endemic reef species, many of which have yet to be described. Kure Atoll, located at the northwestern end of the NWHI chain (approximately 28º 25’ N latitude and 178º 20’ W longitude) is the northernmost atoll in the world. The atoll is located 91 km northwest of Midway Islands and nearly 1,958 km northwest of Honolulu. It is a nearly circular atoll with a diameter of 10 km (6mi). The outer reef is continuous Figure 1. IKONOS satellite image of Kure Atoll 3 and almost encircles the atoll’s lagoon except for passages to the southwest (Fig. 1). An emergent rock ledge consisting primarily of coralline algae and algally bound and encrusted coral is present along some sections of the reef crest.