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The functional effect of gape size on intraspecific body condition is variable across trophic groups and resource seasonalityNARA Subscribed
Gape size is a key functional trait that influences feeding performance and ecological fitness across animal taxa; yet, its role within species remains underexplored, particularly in dynamic environments. We investigated the relationship between relative gape size and condition factor ( Kn ) across 15 species of tropical freshwater fish from northern Australia, spanning four trophic groups: predators, micro-carnivores, omnivor...
Repeated barrier drown-out is required to facilitate long-distance migration of a potamodromous fishNARA Subscribed
Migratory fish species are highly vulnerable to stream fragmentation. Potamodromous golden perch ( Macquaria ambigua ) inhabit the barrier-laden Murray–Darling Basin (MDB), Australia’s largest river system, and its lifecycle includes a requirement for uninterrupted stretches of flowing water habitat. Owing to these barriers, large-scale connectivity in many regions is limited to periods of high flow events that facilitate barr...
Animals within social groups respond to costs and benefits of sociality by adjusting the proportion of time they spend in close proximity to other individuals in the group (cohesion). Variation in cohesion between individuals, in turn, shapes important group‐level processes such as subgroup formation and fission–fusion dynamics. Although critical to animal sociality, a comprehensive understanding of the factors influencing coh...
Contribution of invasive carp (Cyprinus carpio) to fish biomass in rivers of the Murray–Darling Basin, AustraliaNARA Subscribed
Following the introduction of the ‘Boolarra’ strain to Australia in the mid 1960’s, Common carp ( Cyprinus carpio ) rapidly spread in waterways across the Murray–Darling Basin (MDB) in southern-eastern Australia. A previous study of the population expansion based upon data up to the early 2000s suggested the carp population may have reached, and was fluctuating around, the ecosystem carrying capacity. It has been widely stated...
Evaluation and refinement of a fish movement model for a tropical Australian stream subject to mine contaminant egressNARA Subscribed
The impacts of mine contaminants on ecological connectivity in rivers and streams are poorly documented globally. We used acoustic telemetry to evaluate and refine conceptual models of fish movement in Magela Creek, a stream in the wet-dry tropics of Australia. This creek receives wastewater discharge from a nearby uranium mine, and a secondary objective was to describe behavioural responses of fish to one such discharge event...
Sessile marine invertebrate (biofouling) communities have served as an important model in ecology for evaluating fundamental patterns and processes, including invasion dynamics, which vary at broad spatial and temporal scales. Here, we tested for differences in biofouling community development among three biogeographically distinct bays in North America (Chesapeake Bay, Tampa Bay, and San Francisco Bay), exploring possible exp...
Sex and male breeding state predict intraspecific trait variation in mouth‐brooding fishesNARA Subscribed
Sex‐specific reproductive roles contribute to sexual dimorphic morphological trait variations. In uniparental mouth‐brooding fishes, the mouth performs a reproductive function in addition to its key roles in feeding and respiration, resulting in the potential for sex‐specific functional performance trade‐offs. Trait differences related to parental care may occur when the individual matures or be restricted to periods when the...
Contribution of warm habitat to cold‐water fisheriesNARA Subscribed
A central tenet of landscape ecology is that mobile species depend on complementary habitats, which are insufficient in isolation, but combine to support animals through the full annual cycle. However, incorporating the dynamic needs of mobile species into conservation strategies remains a challenge, particularly in the context of climate adaptation planning. For cold‐water fishes, it is widely assumed that maximum temperature...
Conservation of Marine Foundation Species: Learning from Native Oyster Restoration from California to British ColumbiaNARA Subscribed
Marine foundation species are critical to the structure and resilience of coastal ecosystems and provide key ecosystem services. Since many have suffered severe population declines, restoration of foundation species has been undertaken worldwide. The Olympia oyster ( Ostrea lurida ) is a foundation species, and the restoration of depleted populations is a priority for maintaining ecosystem function of estuaries along the west...
Unravelling the taxonomy and identification of a problematic group of benthic fishes from tropical rivers (Gobiidae: Glossogobius )NARA Subscribed
Flathead gobies (genus Glossogobius ) include c . 40 small‐ to medium‐sized benthic fishes found primarily in freshwater habitats across the Indo‐Pacific, having biodiversity value as well as cultural and economic value as food fishes, especially in developing countries. To help resolve considerable confusion regarding the identification of some of the larger‐growing Glossogobius species, a systematic framework was established...
Trait‐based ecology of fishes: A quantitative assessment of literature trends and knowledge gaps using topic modellingNARA Subscribed
Species traits are a new data currency to enhance our understanding of ecological patterns and processes. Trait‐based studies of fishes are numerous in comparison with other animal groups, reflecting the diversity of fish forms and functions they provide to aquatic ecosystems. We conduct a retrospective examination of literature to identify knowledge gaps and provide guidance for future research in trait‐based fish ecology. We...