A5052508555- Coral and Marine Ecosystems Studies
- Marine and fisheries research
- Ichthyology and Marine Biology
- Marine animal studies overview
- Fish Ecology and Management Studies
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Marine Ecology and Invasive Species
- Isotope Analysis in Ecology
- Ocean Acidification Effects and Responses
- Fish Biology and Ecology Studies
- Island Studies and Pacific Affairs
- Marine Bivalve and Aquaculture Studies
- Reproductive biology and impacts on aquatic species
- Water Quality Monitoring Technologies
University of Technology Sydney
2025
Coral Reef Research Foundation
2016-2024
The University of Western Australia
2011-2015
Hunter Water
2007
Abstract Baited remote underwater stereo‐video systems (stereo‐BRUVs) are a popular tool to sample demersal fish assemblages and gather data on their relative abundance body size structure in robust, cost‐effective non‐invasive manner. Given the rapid uptake of method, subtle differences have emerged way stereo‐BRUVs deployed how resulting imagery is annotated. These disparities limit interoperability datasets obtained across studies, preventing broadscale insights into dynamics ecological...
A global survey of coral reefs reveals that overfishing is driving resident shark species toward extinction, causing diversity deficits in reef elasmobranch (shark and ray) assemblages. Our species-level analysis revealed declines 60 to 73% for five common individual were not detected at 34 47% surveyed reefs. As become more shark-depleted, rays begin dominate Shark-dominated assemblages persist wealthy nations with strong governance highly protected areas, whereas poverty, weak governance,...
In recent decades, spearfishing with SCUBA has emerged as an efficient method for targeting reef fish in deeper waters. However, waters are increasingly recognised a potential source of refuge that may help sustain fishery resources. We used combination historical catch data over 20-year time period and fishery-independent surveys to investigate the effects on coral populations southern Mariana Islands. Two jurisdictions were studied; Guam, where is practiced, nearby Commonwealth Northern...
Summary Underwater visual census (UVC) using SCUBA is a commonly used method for assessing reef fish communities. Evidence suggests, however, that avoid divers due to the sound of bubbles produced by open‐circuit , and avoidance behaviour more pronounced as fishing pressure increases. Despite potential producing biased counts conclusions, these behavioural effects have rarely been quantified, especially when effectiveness marine protected areas ( MPA s). To test magnitude behaviour, we...
Abstract There has been rapid uptake of stereo‐video‐based sampling techniques to collect species, abundance and body‐size information on fish assemblages their associated habitats. Stereo‐video methods provide highly accurate estimates body‐size, range area as well a permanent record that can be cross‐checked or resampled for additional data. Due these advantages, diver‐operated stereo‐video (stereo‐DOV) is becoming an increasingly popular alternative underwater visual census. We...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 350:277-290 (2007) - DOI: https://doi.org/10.3354/meps07195 Spatial and temporal variation in reef fish assemblages of marine parks New South Wales, Australia—baited video observations Hamish A. Malcolm1,5,*, William Gladstone2, Steven Lindfield2, James Wraith3, Tim P. Lynch4 1Solitary Islands Park, NSW Parks...
A dearth of scientific data surrounding Micronesia’s coral-reef fisheries has limited their formal assessment and continues to hinder local regional management efforts. We approach this problem by comparing catch-based datasets from market landings across Micronesia evaluate fishery status in the Commonwealth Northern Mariana Islands (CNMI), Guam, Yap, Pohnpei. Initial examinations found that calm weather low lunar illumination predicted between 6% (Yap) 30% (CNMI) variances daily commercial...
Fisheries are complex social-ecological systems, where managers struggle to balance the socio-economic interests of fishing communities with biology and ecology fisheries species. Spatial closures a popular measure address conservation management goals, including protection shark populations. However, very little research has been published on effectiveness shark-specific protect sharks, or their impacts fisher behavior. Situated within global center tropical marine biodiversity, Indonesia's...
Parrotfishes are considered to have a major influence on coral reef ecosystems through grazing the benthic biota and also primary fishery targets in Indo‐Pacific. Consequently, impact of human exploitation parrotfish communities is prime interest. As anthropogenic environmental factors interact across spatial scales, sampling programs designed disentangle these required by both ecologists resource managers. We present multi‐scale examination patterns assemblage structure, size distribution...
Abstract Most platforms for collecting images to characterise marine benthic habitats involve a downward or forward‐facing field of view that is relatively constrained (~70°), covering small area benthos (downward ~1 m 2 , forward ~25 ). Here we propose the use four‐camera platform having wide combined (~280°), much greater (up 100 We also present stereo‐camera configuration has added benefit being able accurately measure sample and dimensions biota. The design proposed robust self‐righting,...
Marine Protected Areas (MPAs) are known to contribute towards the conservation of marine biodiversity, particularly targeted fishery species. Snapper Chrysophrys auratus an important recreational and commercial fish species in New South Wales (NSW), Australia, despite management for this species, they considered 'growth overfished' region. To assess how C. respond implementation MPA with several no-take partially protected areas temperate NSW, we monitored their populations over a decade...
Abstract Mesophotic coral ecosystems (MCEs; reefs 30–150 m depth) are poorly studied, with existing research heavily geographically biased away from the most species-rich reef regions. Yet, MCEs of high interest because their unique species and potential to act as refuges impacts fishing. Using baited remote underwater video systems, we surveyed fish communities 2 85 depths throughout Raja Ampat archipelago in West Papua, Indonesia—an area considered heart Coral Triangle where biodiversity...
and Plectropomus, are important in local/international trade, particularly susceptible to overfishing due their economic value, longevity, late maturation and, for some species, aggregation-spawning. Three P. areolatus, E. polyphekadion, fuscoguttatus, threatened (IUCN Red List) when exploited on aggregations, typically undergo declines unless managed. To effectively assess spawning aggregation status identify changes over time following fishing or management, a robust sampling protocol is...
Abstract Beverton & Holt's (1957) functional definition of maturity in fish ( L 50 ), as being the size class which 50% individuals begin producing gametes some proportion to body weight, is widely used assessment models estimate spawning stock biomass, and manage minimum capture. Standardized histological techniques for estimating apply physiological definitions that identify cellular or hormonal markers indicating are capable gametes. Few studies have examined how those phases gonadal...
Bycatch on pelagic tuna longlines has contributed to population declines in several far-ranging, oceanic species and presents a conservation challenge that area-based management tools are increasingly promoted address. In January 2020 the Republic of Palau, concerned about impacts longline fishing its waters, closed 80% exclusive economic zone all extractive activities, reserving remaining 20% for domestic (DFZ). One growing number very large marine protected areas, Palau National Marine...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 601:185-201 (2018) - DOI: https://doi.org/10.3354/meps12651 Oceanographic, acoustic, and remote approaches reveal spatio-temporal dynamics of blackfin snapper at an aggregation site in Palau Megan Cimino1,*, Patrick Colin2, Travis Schramek1, Steven Lindfield2, Michael Domeier3, Eric Terrill1 1Scripps...