Ken Longenecker

Verified

Ken verified their affiliation via an institutional email.

Learn more

Verified

Ken verified their affiliation via an institutional email.

Learn more

• PhD
• Associate Reseacher at Bernice Pauahi Bishop Museum

The lives of Kala people are deeply intertwined with marine and riparian environments on which their livelihoods depend. To document linguistic and environmental knowledge in these communities, as part of our community-based, collaborative language documentation project, we utilized three main interdisciplinary documentation methods: (1) River walk...

A size‐based, histological analysis of the reproductive life history of the blacktip grouper, Epinephelus fasciatus (Forsskål 1775), was conducted in Indonesia to evaluate the error rate associated with macroscopic reproductive analysis. Histological results indicated that E. fasciatus was protogynous with female L50 at 13.4 cm total length (LT) an...

Four species of the callichirid ghost shrimp genus Corallianassa Manning, 1987 are recognised in Hawaii based on evidence from morphology and the CO1 gene. Corallianassa borradailei (De Man, 1928) is a widespread Indo-West Pacific species now confirmed for Hawaii. Corallianassa lanceolata Edmondson, 1944 is an endemic species similar to C. assimili...

A new species of anthurid isopod Mesanthura kalaeloa sp. nov. is described from Hawai'i. It was collected from an autonomous reef monitoring structure deployed in Barbers Point Harbor, O'ahu. Dorsal pigment patterns immediately distinguish it from all described congeners.

Data-limited fisheries benefit from using life-history traits as biological indicators of targeted stocks. We used histology-based reproductive analyses to estimate size at maturity, per capita egg production, and the number and biomass of immature individuals in the catch for three common coral reef fishes in Fiji market surveys during 2010–2019....

Capacity development for Indonesian scientists in fish life history studies is critical to provide a workforce to generate accurate scientific information to support reliable stock assessments and sustainable fisheries management. The “Specialist Training in Histology-based Reproductive Analysis of Tropical Fishes” was a training course from July 2...

A new species of aorid amphipod Bemlos kaholaloa sp. nov. is described from Hawai'i. It was collected from an autonomous reef monitoring structure deployed near Honolulu Harbor, O'ahu. The new species is compared with two sibling species, one from Micronesia and the other, also given new species status, from the Indian Ocean.

The purpose of the training in histology-based fish reproductive analysis was to provide capacity building that enhances the integrity and credibility of scientific information used to manage fisheries in Indonesia. This report describes a training event led by scientist from the University of Hawaii in these methods to a group of eight Indonesian...

The first record of two genera of sublittoral amphipods, Autonoe Bruzelius, 1859 and Perioculodes G.O. Sars, 1892, is provided for Hawai‘i. The specimens most closely match Autonoe seurati (Chevreux 1907) and Perioculodes aequimanus (Kossmann, 1880). They were collected from an autonomous reef monitoring structure deployed in Honolulu Harbor, O‘ahu...

This report provides an overview of an online synchronous training course in two modules delivered in January 2021 for the first module, “Examining and Interpreting Slides of Fish Gonadal Tissue”, and February 2021 for the second module, “Statistical Analysis of Reproductive Data” to Indonesian scientists. The purpose of the training was to instruc...

2020. Rapid reproductive analysis and weight-length relation of the humpnose big-eye bream, Monotaxis grandoculis (Actinopterygii: Perciformes: Lethrinidae), from Micronesia with implications for fisheries. Acta Ichthyol. Piscat. 50 (4): 493-500. Abstract. We present a weight-length relation and use rapid and low-cost histological methods to genera...

This Standard Operating Procedure (SOP) describes rapid, efficient, cost-effective, and accurate methods for histology-based reproductive analysis of tropical fishes. This SOP provides a detailed set of methods for histology-based reproductive analyses of fishes to proceed from planning to collection of fish through to generating reproductive param...

The Standard Operating Procedure provides a detailed set of methods for histology-based reproductive analyses of fishes to proceed from planning to collection of fish through to generating reproductive parameter estimates from those specimen. Report is in Bahasa Indonesia. Prosedur Operasi Standar menyediakan serangkaian metode terperinci untuk an...

The Hawaiian Archipelago is one of the largest and most isolated island chains in the world, and its marine ecosystems are well-studied. Research on Hawaiian mesophotic coral ecosystems (MCEs) began in the 1960s and has intensified during the past decade. In Hawai‘i, rich communities of macroalgae, corals and other invertebrates, and fishes inhabit...

Papua New Guinea (PNG) hosts a unique range of geological features and is located in the Coral Triangle, the world center of marine biodiversity. However, working in PNG poses considerable logistical challenges in addition to those typically associated with mesophotic coral ecosystem (MCE; light-dependent reefs from 30 to ~150 m) research. Although...

Background. We present length–weight relations (LWR) and describe the reproductive biology of five species of coral reef fishes from Papua New Guinea (PNG). Each of these species are targeted by artisanal-and small-scale commercial fisheries throughout the country. As such the purpose of this study was to provide baseline reproductive information t...

Presence of bisexual individuals and a sex-specific bimodal size distribution are suggestive of protogyny in the dash-and-dot goatfish Parupeneus barberinus, but the most parsimonious interpretation of histological analysis is juvenile hermaphroditism. This is the first report of hermaphroditism in the Mullidae.

A pictorial guide to the histology-based staging of reef-fish gonads.

We used rapid, histology-based methods (i.e., Jungle Histology) to describe length-weight relationships and reproductive parameters of four heavily exploited reef fishes from Pohnpei State, Federated States of Micronesia, for which reproductive information is scant or completely lacking: lined surgeonfish, Acanthurus lineatus (Linnaeus, 1758); epau...

Shallow-water (<30 m) coral-reef fishes are under threat from multiple environmental and anthropogenic impacts. Typically spatially removed from such impacts, mesophotic coral ecosystems (MCEs) at intermediate depths (30-150 m) may serve as refugia for these fishes. In the main Hawaiian Islands, efforts to protect and manage coral-reef fisheries ar...

We present length–weight relations (LWR) and use rapid, low-cost histological methods to describe the reproductive biology of three reef fishes from a remote area in Papua New Guinea: the striped monocle bream, Scolopsis lineata Quoy et Gaimard, 1824; the Indian goatfish, Parupeneus indicus (Shaw, 1803); and the blackbelly triggerfish, Rhinecanthus...

Although the existence of coral-reef habitats at depths to 165 m in tropical regions has been known for decades, the richness, diversity, and ecological importance of mesophotic coral ecosystems (MCEs) has only recently become widely acknowledged. During an interdisciplinary effort spanning more than two decades, we characterized the most expansive...

Raw data from this study Tab 1: Algae Depth Data; Tab 2: Fish Depth Data; Tab 3: NWHI Fish Trophic Data; Tab 4: Temperature Depth Datasets; Tab 5: Temperature Depth Data.

Detailed Materials and Methods

Detailed methods with Track Changes showing alterations from original submission

The trilingual fishery-monitoring project described in this document was designed for grades seven and eight of Lababia Primary School, located in the Kamiali Wildlife Management Area, Morobe Province, Papua New Guinea. However, this program can easily be adapted to other locations where communities fish for their subsistence, and it can certainly...

A trilingual marine management plan developed in conjunction with the Kamiali Wildlife Management Committee (KWMC) and community members representing Kamiali’s clans.

The teardrop threadfin bream, Nemipterus isacanthus (Bleeker, 1873), is reported from northern New Guinea for the first time based on specimens caught by hook and line, and photographed in June 2008 and September 2014 at Kamiali Wildlife Management Area (KWMA), Morobe Province, Papua New Guinea. A large, permanent population exists at KWMA, thus th...

Museum collections contribute valuable information for cultural heritage, biological conservation, and the application of innovative and new methodological approaches. Collections deriving from archaeological projects in Hawai’i serve as a case in point. Here, we report on re-analysis of two Ka’ū District collections from Hawai’i Island (HA-B22-64...

The Kamiali Initiative is a Bishop-Museum-led project to develop a self-sustaining cycle of environmental conservation, scientific research, and economic development in the coastal community of Kamiali, Papua New Guinea. The area includes approximately 120,000 acres of terrestrial and marine habitat, and is larger than most state parks in Californi...

The Kamiali Initiative is a Bishop-Museum-led project to develop a self-sustaining cycle of environmental conservation, scientific research, and economic development in the coastal community of Kamiali, Papua New Guinea. The area includes approximately 120,000 acres of terrestrial and marine habitat, and is larger than the land area of 16 countries...

Live coral is harvested throughout the Indo-West Pacific to make lime, used in the consumption of the world's fourth-most consumed drug, betel nut. Coral harvesting is an environmental concern; however, because lime-making is one of the few sources of income in some areas of Papua New Guinea (PNG), the practice is unlikely to stop. To better manage...

We present length-weight relations (LWR) and use rapid, low-cost histological methods to describe the reproductive biology of the red-bellied fusilier, Caesio cuning (Bloch, 1791), and the longfin emperor, Lethrinus erythropterus Valenciennes, 1830, based on 137 and 139 specimens, respectively, collected from a remote area in Papua New Guinea. The...

Reef‐fish management and conservation is hindered by a lack of information on fish populations prior to large‐scale contemporary human impacts. As a result, relatively pristine sites are often used as conservation baselines for populations near sites affected by humans. This space‐for‐time approach can only be validated by sampling assemblages thro...

The Kamiali Initiative is a Bishop-Museum-led project to develop a self-sustaining cycle of environmental conservation, scientific research, and economic development in the coastal community of Kamiali, Papua New Guinea. The area includes approximately 120,000 acres of terrestrial and marine habitat, and is larger than most state parks in Californi...

Divergent trends in population abundance of Endangered Hawaiian monk seals Monachus schauinslandi are apparent between the northwestern Hawaiian Islands (NWHI) and the main Hawaiian Islands (MHI). The smaller, recently established MHI seal population is increasing, exhibits higher juvenile survival, and seals appear to be in better condition overal...

We describe a simple, inexpensive method for field-based histological analysis of fish gonads, and we used this method to describe the reproductive biology of the small snapper Lutjanus biguttatus from a remote area in Papua New Guinea (i.e., where laboratory equipment is limited and electrical service is lacking). We estimate male L50 at 13 cm FL...

We present a length–weight relation and use rapid, low-cost histological methods to describe the reproductive biology of the blacktail snapper, Lutjanus fulvus (Forster, 1801), based on 124 specimens collected from a remote area in Papua New Guinea [W = 0.0134(FL)3.100]. We estimate male L 50 at 13.5 cm FL and female L 50 at 18.8 cm FL. Sex ratio i...

The Kamiali Initiative is a Bishop-Museum-led project to develop a self-sustaining cycle of environmental conservation, scientific research, and economic development in the coastal community of Kamiali, Papua New Guinea. The area includes approximately 120,000 acres of terrestrial and marine habitat, and is larger than most state parks in Californi...

Here we describe the status of Kamiali’s exploited reef-fish populations to help guide and evaluate conservation efforts. We conducted rapid, histology-based reproductive analysis on five species to generate parameters necessary for life-history-based management of fisheries, decribed catch characteristics of the same five species and evaluate the...

Estimating body size of fishes from remains recovered from piscivores, archaeological sites, and sedimentary deposits is desirable but rarely accomplished because the relationships between the size of a fish and its durable anatomical structures are largely unknown. Regression equations to predict the size or weight of 41 common Hawaiian reef fishe...

We describe aspects of the life history of the small cardinalfish Ostorhinchus rubrimacula from a single, large collection taken at Koro, Fiji. We determined size at maturity and batch fecundity, examined otolith microstructure to construct a vonBertalanffy growth curve, described a length-weight relationship, and performed a dietary analysis. Osto...

Coral reefs at Kaua‘i, O‘ahu, Moloka‘i, Maui, and Hawai‘i were surveyed using a rapid assessment method for marine nonindigenous and cryptogenic species commonly found in Hawaiian harbors and embayments with restricted circulation. In 41 sites surveyed by rapid assessment 26 nonindigenous and cryptogenic species (three algae, 19 invertebrates, and...

Reef-fish diversity models, unlike general diversity-gradient hypotheses, assume food specialization by reef fishes is too low to influence community structure. This assumption may be an artifact of low taxonomic resolution in studies of fish diets. I performed detailed dietary analyses on adults of eight small, cryptic, diurnal fish species from t...

Pseudambasia kalaupapa, n. sp. from Moloka'i and O'ahu is described and illustrated and marks the first record of the genus from Hawaiian waters. A key to species of Pseudambasia is presented.

We examined otoliths found in regurgitate samples (spews) of Hawaiian monk seals, Monachus schauinslandi, to identify fish prey, and report for the first time that these seals eat morid cods typically found at subphotic depths. Dietary information was used to build a comparative skeletal collection and create a digital image database to aid foragin...

High-resolution dietary analysis can increase understanding of the foraging behavior, food requirements, and ecological interactions of animals. Such analysis is difficult because the characters traditionally used for taxonomic determination are modified or eliminated by the process of digestion. We are developing alternative means for identifying...

A single individual of a new goby species in the genus Vanderhorstia was collected from a fine sand bottom at Vanua Balavu Island, Bay of Islands, in the Northern Lau Group of Fiji. The species differs from all other described species in the genus except V. mertensi by having 17 dorsal and 18 anal-fin rays. It differs from V. mertensi by having abo...

We described aspects of the life history of the small, cryptic, triplefin blenny, Enneapterygius atriceps, collected from the mouth of Kaneohe Bay, Oahu, Hawaii. We examined otolith microstructure to construct a von Bertalanffy growth curve, described a length–weight relationship, performed a detailed dietary analysis, used standard histological te...

Thesis (Ph. D.)--University of Hawaii at Manoa, 2001. Includes bibliographical references (leaves 128-140). Microfiche.

Thesis (Ph. D.)--University of Hawaii at Manoa, 2001. Includes bibliographical references (leaves 128-140). Electronic reproduction.