A5016805706- Marine and fisheries research
- Fish Ecology and Management Studies
- Coral and Marine Ecosystems Studies
- Ichthyology and Marine Biology
- Marine animal studies overview
- Fish Biology and Ecology Studies
- Marine Bivalve and Aquaculture Studies
- Fish biology, ecology, and behavior
- Marine and coastal plant biology
- Wildlife Ecology and Conservation
- Physiological and biochemical adaptations
- Underwater Vehicles and Communication Systems
- Cephalopods and Marine Biology
- Marine Biology and Ecology Research
- Reproductive biology and impacts on aquatic species
- Identification and Quantification in Food
- Coastal and Marine Management
- Amphibian and Reptile Biology
- Genetic diversity and population structure
- Diverse Academic Research Areas
- Genetic and phenotypic traits in livestock
- Hydrology and Sediment Transport Processes
- Animal Behavior and Reproduction
- Turtle Biology and Conservation
- Paleontology and Evolutionary Biology
New South Wales Department of Primary Industries
2013-2024
UNSW Sydney
1998-2016
New South Wales Department of Health
2004
Abstract Fisheries enhancement initiatives are a potentially useful tool for managers to supplement traditional approaches. Habitat‐based enhancements often deploy artificial reefs with the aim increase available structure augment local production, yet current assessment approaches make it difficult assess whether these achieve pre‐deployment goals. This makes hard determine could improve their fishery outputs, leading missed opportunities and reduced production. We reviewed 270 research...
Abstract Human activities have reduced the carrying capacity of many estuarine systems by degrading and removing habitat. Artificial reefs may increase rocky‐reef habitat, but our understanding their ecological impact is limited. In particular, question whether fish on artificial structures are produced habitat or attracted from nearby natural rocky‐reefs concern. We used baited remote underwater video at reef sites to investigate influence abundance in estuaries with low amounts rocky‐reef....
Release and recovery files from the world's five major constituent-based billfish (Istiophoridae) tagging programs were assembled into a single composite database. Data sources included National Marine Fisheries Service's (NMFS) Cooperative Tagging Center (MIA) in Atlantic Ocean, NMFS's Billfish Program (LJA) Pacific Indian Oceans, Australian New Zealand Game Fish The Foundation's (TBF) program Atlantic, Oceans. Results for main target species, including black marlin (Makaira indica), blue...
Abstract The notorious jaws of the white shark Carcharodon carcharias are widely feared, yet poorly understood. Neither its bite force, nor how such force might be delivered using relatively elastic cartilaginous jaws, have been quantified or described. We digitally reconstructed a to estimate maximum and examine relationships among their three‐dimensional geometry, material properties function. predict that in large sharks may exceed c . 1.8 tonnes, highest known for any living species,...
If the primary goal of artificial reef construction is creation additional habitat that comparable to adjacent natural rocky-reef, then performance should be evaluated using simultaneous comparisons with habitats. Using baited remote underwater video (BRUV) fish assemblages on purpose-built estuarine reefs and rocky-reef sand-flat were assessed 18 months post-deployment in three south-east Australian estuaries. Fish abundance, species richness diversity found greater than either naturally...
Artificial reefs now form part of an integrated approach to enhance fisheries around the world. A responsible artificial reef deployment calls for clear, well defined goals prior any being placed in field, followed by subsequent monitoring assess whether these are achieved. In this study, evaluate if off Sydney was meeting its goal providing quality fishing opportunities through establishment a complex fish assemblage, 4-year program designed. This examined response reef-associated and...
Artificial reefs are a popular fisheries management tool, but the effect of these on abundance fish in surrounding pelagic environment is uncertain. Pelagic baited remote underwater video (PBRUV) was used to observe assemblage an offshore artificial reef (OAR), near Sydney, Australia. PBRUVs were deployed at three distances (30, 100, 500m) from OAR, and compared with drop camera directly over OAR. There significantly greater no significant difference 30-, 100- or 500-m distances. Two highly...
Abstract Understanding succession of fish communities associated with artificial structures is required to assess the potential these initiatives as part fisheries enhancement strategies and determine possible impacts on broader ecological community. Artificial reef systems constructed in three south‐eastern Australian estuaries were monitored over a four‐year period. Recruitment reefs was rapid, significantly greater species richness observed than natural habitats for majority locations...
Abstract Delineation of population structure (i.e. stocks) is crucial to successfully manage exploited species and address conservation concerns for threatened species. Fish migration associated movements are key mechanisms through which discrete populations mix thus important determinants structure. Detailed information on fish becoming more accessible advances in telemetry analysis methods however such not yet used systematically stock assessment. Here, we described how detections...
Abstract The debate on whether artificial reefs produce new fish or simply attract existing biomass continues due to the difficulty in distinguishing these processes, and there remains considerable doubt as are a harmful form of habitat modification. harm typically associated with attraction is that will be easier harvest aggregating at newly deployed reef. This outcome has not progressed past an anecdotal form, however, always perceived process. We present numerical model simulates effect...
Artificial reefs provide shelter and can be an important source of food for fish depending on the epibenthic community structure. The growth diversity this is influenced by substratum material surface orientation reef. Settlement plates four materials (Perspex, sandstone, wood steel) were deployed in three orientations (upwards, downwards vertical) at a depth 33 m designed artificial reef (DAR) off coast Sydney, Australia. After months, steel surfaces had lower invertebrate species richness,...
Abstract Recreational fishing (RF) is a large yet undervalued component of fisheries globally. While progress has been made in monitoring, assessing, and managing the sector isolation, integration RF into management multi‐sector limited, particularly relative to commercial sector. This marginalises recreational fishers reduces likelihood achieving sector's objectives and, more broadly, sustainability. We examined nature extent inclusion harvest strategies (HSs) for marine across 15 regions...
A goal of designed artificial reefs (ARs) is to enhance fish abundance, species diversity and fishing opportunities by providing food refuge for fish. Quantifying the contribution ARs coastal ecosystems fisheries productivity requires an understanding presence at structure connectivity with surrounding habitats. In present study, movements 10 eastern fiddler rays (Trygonorrhina fasciata), 17 Port Jackson sharks (Heterodontus portusjacksoni) 18 bluespotted flathead (Platycephalus...
Artificial reefs are a widely used tool aimed at fishery enhancement, and measuring the scale which fish assemblages associate with these artificial habitat patches can aid reef design spatial arrangement. The present study rapidly deployed underwater video (drop cameras) to determine magnitude of associations between assemblage coastal reef. Count data from drop cameras were combined distance bathymetry information create suite explanatory generalised linear mixed models (GLMMs). GLMMs...
Despite the long history of development artificial structures in NSW estuaries there are no studies that provide any comprehensive scientific evaluation post-deployment goals. We assessed effectiveness estuarine reefs as a fisheries enhancement initiative; described diversity and abundance species associated with them, detailed patterns colonization community an reef deployment Lake Macquarie, large coastal barrier lagoon on southeast coast Australia. Six (one group), constructed from units...
Monitoring strategies which adequately represent the entire community associated with artificial structures will enable more informed decisions regarding broader effects of and their role in management fisheries resources. Despite widespread application a range situ visual monitoring methodologies used assessment structures, relative biases each method have not been critically examined remain poorly understood. Estimates fish abundance on six estuarine reefs carried out by divers using...
Fish screens can help prevent the entrainment or injury of fish at irrigation diversions, but only when designed appropriately. Design criteria cannot simply be transferred between sites pump systems and need to developed using an evidence-based approach with needs local species in mind. Laboratory testing is typically used quantify responses intake screens, often limits number that studied creates artificial conditions not directly applicable wild. In this study a field-based was assess...
Abstract Entrainment and impingement of two non‐salmonid species susceptible to entrainment at irrigation diversions, silver perch, Bidyanus bidyanus (Mitchell), golden Macquaria ambigua (Richardson), were examined an experimental intake screen in a laboratory flume under range velocities light levels. The presence significantly reduced entrainment, some cases reducing mortality from over 90% (unscreened) less than 2% (when screened). Although differences behaviour existed between species,...