Ian R. Tibbetts

Ian R. Tibbetts
The University of Queensland | UQ · School of Biological Sciences

PhD

About

258
Publications
34,000
Reads
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2,278
Citations
Citations since 2016
43 Research Items
1281 Citations
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
Introduction
Additional affiliations
August 1993 - present
The University of Queensland
Position
  • Professor (Associate)

Publications

Publications (258)
Article
Full-text available
Rising sand temperatures resulting from climate warming may cause the ‘feminization’ of sea turtle populations, which have temperature-dependent sex determination. In July and October 2021, we conducted surveys using a drone (also referred to as an unmanned aerial vehicle or UAV) and shore-based observations to assess the operational sex ratio (OSR...
Article
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Community-based fisheries management (CBFM) is a standard management framework in Melanesia. Yet, there is increasing evidence that women, among other marginalised groups, experience barriers to inclusion in decision-making processes. Through a case study in three communities in Marovo Lagoon, Solomon Islands, we adapted Agarwal’s 2001 participatio...
Article
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The implications of logger accuracy and precision are rarely considered prior to their application in many ecological studies. We assessed the accuracy and precision of three temperature data loggers widely used in ecological studies (Hobo®, iButton® and TinyTag®). Accuracy was highest in TinyTags (95% of readings were within 0.23°C of the true tem...
Chapter
Full-text available
Wildlife Research in Australia: Practical and Applied Methods is a guide to conducting wildlife research in Australia. It provides advice on working through applications to animal ethics committees, presents general operating procedures for a range of wildlife research methods, and details animal welfare considerations for all Australian taxa. Comp...
Article
Full-text available
Background Delimiting cryptic species in elasmobranchs is a major challenge in modern taxonomy due the lack of available phenotypic features. Employing stand-alone genetics in splitting a cryptic species may prove problematic for further studies and for implementing conservation management. In this study, we examined mitochondrial DNA and genome-wi...
Article
The brown‐banded bamboo shark, Chiloscyllium punctatum is the most common shark caught in coastal commercial fisheries throughout southeast Asia, yet we lack the life history information necessary for reliable stock assessments. We estimated growth rates and age at maturity using analysis of growth bands in vertebral centra. We trialled four differ...
Article
The brown-banded bamboo shark, Chiloscyllium punctatum is one of the most common shark species caught in coastal fisheries throughout the Indo-Malay region and the most abundant shark caught in trawl fisheries in Malaysia and Thailand. Differences in fisheries regulations related to trawling among jurisdictions, and an absence of either stock asses...
Article
Full-text available
Aim Globally distributed pelagic fishes are typified by very low to negligible genetic differentiation at oceanic scales arising from high gene flow and (or) large population sizes. However, genomic approaches employing thousands of loci to characterise genetic variation can illuminate subtle patterns of genetic structure and facilitate demographic...
Article
The brown-banded bamboo shark, Chiloscyllium punctatum, is one of the most common sharks caught in coastal fisheries across Southeast Asia; however, its small size and low economic value typically exclude it from the attention of fisheries managers. As part of an assessment of a potential role for this shark in improving the sustainability of coast...
Preprint
Full-text available
Background Delimiting cryptic species in elasmobranchs is a major challenge in modern taxonomy due the lack of available phenotypic features. Employing stand-alone genetics in splitting a cryptic species may prove problematic for further studies and for implementing conservation management. In this study, we examined mitochondrial DNA and genome-wi...
Article
Full-text available
Sea cucumbers (Holothuroidea; Echinodermata) are ecologically significant constituents of benthic marine habitats. We surveilled RNA viruses inhabiting eight species (representing four families) of holothurian collected from four geographically distinct locations by viral metagenomics, including a single specimen of Apostichopus californicus affect...
Preprint
Sea cucumbers (Holothuroidea; Echinodermata) are ecologically significant constituents of benthic marine habitats. We surveilled RNA viruses inhabiting 8 species (representing 4 families) of holothurian collected from four geographically distinct locations by viral metagenomics, including a single specimen of Apostichopus californicus affected by a...
Article
Full-text available
Herbivorous fishes consume algae on coral reefs, and this ecological function is pivotal in helping reefs to resist and recover from disturbance. Although numerous studies have differentiated between those fishes that graze on low-profile algae and those that browse on larger fleshy macroalgae, little is known about the feeding behaviours of some h...
Article
Spatial management of fish populations can potentially be optimised by determining the area of influence of a particular species. We performed an acoustic tagging study implemented on Denis Island in the Seychelles to assess the area of influence of the heavily targeted shoemaker spinefoot, Siganus sutor. We investigated whether this species acts a...
Article
Food security is arguably one of the greatest challenges facing humanity. With rapid globalisation, and the global population forecast to reach 9.7 billion by 2050, this problem will only intensify. Fresh fish is the primary source of animal protein for many nations, and this is particularly true for equatorial nations in the Pacific. As fish stock...
Article
We investigated the effects of a catastrophic typhoon on mollusc assemblages of damaged mangrove plantations of different ages. Molluscs were sampled from infaunal, epifaunal and arboreal assemblages of mangrove stands in Lingayen Gulf, northwest Philippines, and compared with assemblages of un-impacted areas. Prior to the occurrence of the typhoon...
Chapter
Moreton Bay is a heterogeneous seascape containing a mosaic of habitats that support a diversity of fish. The fish fauna includes many species that are harvested by recreational and commercial fishers as well as numerous taxa that are of conservation concern. The fish fauna of mangroves, seagrasses, inshore reefs and intertidal flats is well sample...
Article
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We compared the electrosensory system of two benthic elasmobranchs Hemiscyllium ocellatum and Chiloscyllium punctatum. The distribution of the ampullary pores on the head was similar for both species, with a higher density of pores anteriorly and a lower density posteriorly, although C. punctatum generally possessed larger pores. Ampullary canals o...
Article
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This study investigated and compared the morphology of the electrosensory system of three species of benthic rays. Neotrygon trigonoides, Hemitrygon fluviorum and Maculabatis toshi inhabit similar habitats within Moreton Bay, Queensland, Australia. Like all elasmobranchs, they possess the ability to detect weak electrical fields using their ampulla...
Article
Grazing influences the structure and function of seagrass meadows. Like terrestrial plants, seagrasses have evolved nutritional, structural and chemical mechanisms to either tolerate or resist grazing. Phenols are common secondary metabolites that have multiple roles, including grazing deterrence, and their content in seagrass tissues can vary both...
Article
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Multiple paternity has been documented as a reproductive strategy in both viviparous and ovoviviparous elasmobranchs, leading to the assumption that multiple mating may be ubiquitous in these fishes. However, with the majority of studies conducted on coastal and nearshore elasmobranchs that often form mating aggregations, parallel studies on pelagi...
Article
Species surrogates, the use of particular species to index habitat condition or to represent ecological assemblages are commonly identified in many ecosystems, but are less tested, and therefore less employed in estuaries. Estuaries provide important ecosystem goods (e.g. harvestable species) and services (e.g. carbon processing, coastal armouring)...
Article
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Understanding species interactions and how they change in the presence of a predator or competitor is a fundamental goal for ecologists. We tested such interactions in an intertidal soft sediment pool system where both the sand goby Favonigobius lentiginosus and post-settlement whiting Sillago spp. consume meiofaunal prey, but F. lentiginosus also...
Article
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We compared the mollusc assemblages of planted mono-specific Rhizophora mangroves of known different ages. As forest age increased, there was a shift in species composition, abundance and biomass of mollusc assemblages for all faunal types (infauna, epifauna and arboreal fauna). This shift was correlated with the changes in vegetation (increasing f...
Article
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This study reports the diet composition of 363 wahoo Acanthocybium solandri captured from the Indo-Pacific. The study also provides the first estimates of consumption and daily ration for the species worldwide, which are important parameters for ecosystem models and may improve ecosystem-based fisheries management. Thirty-four prey taxa were identi...
Article
In the present study, we investigated the changes to nekton communities with increasing mangrove forest age and relationships between nekton and the mangrove vegetation, mangrove sediments and environmental variables. The nekton community was assessed as a potential indicator for evaluating habitat functionality of mangrove planting programs. In al...
Article
Full-text available
Management authorities seldom have the capacity to comprehensively address the full suite of anthropogenic stressors, particularly in the coastal zone where numerous threats can act simultaneously to impact reefs and other ecosystems. This situation requires tools to prioritise management interventions that result in optimum ecological outcomes und...
Data
Description and justification of modelled management interventions. (DOCX)
Data
Data sources for the Bayesian belief network. (DOCX)
Data
Justification of all arcs between nodes in the conceptual framework for management of Moreton Bay’s reefs. (DOCX)
Article
Full-text available
The influence of two cryptic, seagrass-inhabiting omnivorous fishes, the fan-bellied leatherjacket Monacanthus chinensis and the variable sabretoothed blenny Petroscirtes variabilis, on seagrass epiphyte biomass are described. Overall, M. chinensis significantly reduced epiphyte biomass by 35·1% after 18 h in experimental aquaria, whilst P. variabi...
Poster
Full-text available
My award winning poster presented at the World Congress of Malacology in 2016 regarding our ongoing work on Smaragida souverbiana, and the trade-offs it appears to make between cell size and chemical protection when feeding on seagrass.
Article
Understanding the relative influence of factors that influence faunal community structure, such as habitat and landscape arrangement, has been a long-standing goal of ecologists. This is complicated in marine environments by the high importance of physico-chemical water factors in determining species distributions relative to their physiological or...
Article
Full-text available
Baited hooks used in angling may influence foraging behaviour and trophic interactions among reef fishes, which may be reinforced over successive generations. In contrast to other scavenging opportunities involving pulsed resources (e.g. food falls), there is an asymmetric susceptibility to becoming hooked for species and size classes. The resultin...
Article
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Establishing levels of functional redundancy in browsing fish populations among sampling periods and across spatial gradients is important in understanding coral reef functioning. We used baited video techniques to determine functional redundancy and variability in browsing herbivores within no-take marine protected areas (MPAs) and reference fishe...
Article
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Needlefishes (Beloniformes) were observed employing a range of stalking and attacking behaviours to attack schools of bait fishes ranging from the use of tactics common to predatory fishes to a novel behaviour: the use of leaping, aerial attacks. These aerial attacks are suggested to serve two purposes: to extend the attack range of the needlefishe...
Article
Full-text available
Herbivory, together with seasonal variations in temperature, light and nutrient concentration regulate macroalgal populations on coral reefs. Individual management interventions can influence this balance by altering some, but not all of these potential drivers. For example, no-take marine protected areas (MPAs) on coral reefs can increase herbivor...
Article
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The morphology of ampullary organs in Plicofollis argyropleuron, collected from a southeast Queensland estuary, was examined by light and electron microscopy to assess the morphological characteristics of teleost ampullary organs in environments with fluctuating salinities. This catfish possesses both macroampullae and microampullae. Both have the...
Article
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Total lengths (LT ) at age and growth rates for south-west Pacific Galeocerdo cuvier were estimated from vertebral growth-band counts of 202 sagitally sectioned centra from 112 females (71-430 cm LT ), 79 males (72-351 cm LT ) and 11 of unknown sex. Captive growth data were also examined to complement vertebral age estimations. The sexes combined m...
Article
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The marine macroalga Caulerpa taxifolia is increasing its distribution worldwide, both within its natural range, where it can replace seagrass following a disturbance, and in areas where it is invasive. C. taxifolia presents a bright green background colouration for inhabitants, while seagrass habitats are typically much deeper green in coloration....
Article
Full-text available
We hypothesized that due to the relative conductivity of the environment, and to maintain sensory function, ampullary organs of marine Neoarius graeffei would differ morphologically from those described previously for estuarine and freshwater conspecifics. Unlike the ampullary systems of N. graeffei from freshwater and estuarine habitats, the ampul...
Article
In eastern Australia, small ephemeral soft-sediment pools are common on sheltered sand-and mudflats, and are occupied by the juveniles of fishes of economic and ecological importance. To address the question of whether these pools are merely refugia or whether they constitute a hitherto unrecognised nursery feeding habitat for small obligate meiobe...
Article
Full-text available
Ampullae of Lorenzini were examined from juvenile Carcharhinus leucas (831–1,045 mm total length) captured from freshwater regions of the Brisbane River. The ampullary organ structure differs from all other previously described ampullae in the canal wall structure, the general shape of the ampullary canal, and the apically nucleated supportive cell...
Article
Full-text available
Partial migration is considered ubiquitous among vertebrates, but little is known about the movements of oceanodromous apex predators such as sharks, particularly at their range extents. PAT-Mk10 and SPOT5 electronic tags were used to investigate tiger shark (Galeocerdo cuvier) spatial dynamics, site fidelity and habitat use off eastern Australia b...
Article
Full-text available
Myora Springs is one of many groundwater discharge sites on North Stradbroke Island (Queensland, Australia). Here spring waters emerge from wetland forests to join Moreton Bay, mixing with seawater over seagrass meadows dominated by eelgrass, Zostera muelleri. We sought to determine how low pH / high CO2 conditions near the spring affect these plan...
Article
The barcoding of mitochondrial cytochrome c oxidase subunit 1 (coI) gene was amplified and sequenced from 16 species of freshwater fishes found in Lake Wivenhoe (south-eastern Queensland, Australia) to support monitoring of reservoir fish populations, ecosystem function and water health. In this study, 630-650 bp sequences of the coI barcoding gene...
Article
Full-text available
By amalgamating all seagrass-associated grazing invertebrates into an epiphyte-feeding guild, the currently accepted model of seagrass trophic dynamics ignores the diverse range of invertebrates that feed directly on, and do considerable damage to, seagrasses. Of the wide range of invertebrates documented to damage seagrass directly, the gastropod...
Article
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We explored the integrated role of dietary specialization and feeding periodicity on the response of the gastrointestinal tract of teleosts fishes to short-term (7-10 days) fasting and refeeding. Fasted and fed herbivorous grass carp (Ctenopharyngodon idella), omnivorous channel catfish (Ictalurus punctatus), and carnivorous largemouth bass (Microp...
Article
This study assessed the spawning activity of the threatened Australian lungfish Neoceratodus forsteri by measuring egg densities within the artificial habitat of a large impoundment (Lake Wivenhoe, Australia). Eggs were sampled (August to November 2009) from multiple locations across the impoundment, but occurred at highest densities in water shall...
Article
The livelihood of many coastal communities in the Pacific Islands is directly dependent on the health of adjacent coral reefs. Reduction in water quality and over-harvesting of herbivorous fish are known to drive reef ecosystems towards a more degraded state. Community-based resource management practices have the potential to improve damaged reefs...
Article
Full-text available
We investigated: (1) the changes in the nekton community with increasing mangrove forest age (composed of 6-, 8-, 10-, 11-and 18-yr old stands); (2) the relationship among the nekton community and the mangrove vegetation, mangrove soils, and environmental variables; and (3) the nekton community as a potential indicator for evaluating progress of ma...
Article
A dearth of basic biological information for wahoo, Acanthocybium solandri, currently hinders the ability of scientists and managers to assess population sustainability and appropriately manage the dramatically increasing global catch. This study examined the gonads of 382 wahoo collected off eastern Australia during 2008–2011 to quantify their rep...
Article
Zischke, M. T., Griffiths, S. P., and Tibbetts, I. R. 2013. Rapid growth of wahoo (Acanthocybium solandri) in the Coral Sea, based on length-at-age estimates using annual and daily increments on sagittal otoliths. – ICES Journal of Marine Science, 70: 1128–1139. The wahoo (Acanthocybium solandri) is an economically important species incidentally ca...
Article
To test theories of resource segregation and coexistence, we studied 2 goby species: the eastern sand goby Favonigobius lentiginosus (which typically occupies soft sediment tidepools) and the half-bridled goby Arenigobius frenatus (typically found in nearby subtidal seagrass beds). We used mesocosm experiments to test the hypotheses that (1) occupa...