We used satellite tags and blood based analyses to examine the impacts of catch and release angling on the shortfin mako shark. We report high survivorship seemingly unaffected by fight time or physiological stress and recommend that circle hooks should be used to reduce physical damage to these sharks.

Purpose The purpose of this paper is to explore conceptualizations of mindset across disciplines with particular attention to scholars’ care in defining and operationalizing the construct of mindset. Theories of mindset have witnessed increased attention through a variety of disciplines for their applicability as processes with the potential to influence individual and/or organizational outcomes. Exploration of mindset conceptualizations and characterizations reveal substantial divergences. Design/methodology/approach This conceptual paper generally examines the utilization of mindset constructs via a multidisciplinary review of literature and specifically details three mindset theories (implemental and deliberative, global and growth and fixed mindsets) to illuminate such disparities. Findings This paper categorizes the significant variations of the mindset construct and research via three distinct streams. Each stream highlights knowledge as instrumental in the mindset construct; however, the ways in which varying aspects of knowledge, knowledge mechanisms or knowledge as a component of an individuals and/or organization’s identity correspond to the inherent presuppositions of varying articulations of mindset theory and praxis. Practical implications Effectively influencing an individual and/or organization’s mindset necessitates an accurate assessment of the mindset construct. Further, evaluating the applicability of mindset research and/or feedback from a consultant warrants attention to the assumptions undergirding the mindset construct. Originality/value Generally, mindset studies and theories have scantly attended to both the historical development of mindset research as well as divergences in the research record within and across disciplines. This paper attempts to address this deficiency. Further, this paper appears to be the first attempt to compare and identify varying conceptualizations and characterizations of mindset theory and, therefore, identifies previously unidentified assumptions.

Effective management of wildlife resources depends on understanding and cooperating with the human users of the resource, particularly as policies may be rejected if user satisfactions are not met. In Australia, recreational anglers can legally target a migratory top predator, the shortfin mako shark Isurus oxyrinchus, which is also a species at risk. It is assumed that most of the sharks are released and population remains minimally impacted; yet, the actual release rate of this species is unknown and little information is available about anglers that participate in this fishery. Fishing motivations and behaviours were ascertained by a web survey of recreational shark anglers from three south‐eastern Australian states. Respondents reported that ~70% of the captured makos were released, with significant geographic variation in release rates between states. Most anglers reported being motivated by the catch‐based objectives, the thrills and challenges, rather than harvest‐based motivations. However, there were significant differences in harvesting motivation among states. This could be attributed to the varying value assigned to shortfin mako as a sport fish and table fish among regions. Additionally, higher rates of release among anglers from New South Wales may be linked to increased opportunity for resource substitution (i.e. greater diversity of game fish species) and established norms driven by current catch‐and‐release fisheries in that region. Increased participation in catch‐and‐release fishing may be achieved by establishing behavioural norms by the provision of more desirable incentives to release sharks during fishing competitions. Data on regional variation in release rates yield important information for managers to target specialized fishers to incentivize catch‐and‐release fishing with an objective of changing behaviour. Many anglers understand that sharks are important to marine ecosystems and messaging may be important to deliver effective management given that most anglers are motivated by catch‐based objectives even though many enjoy harvesting makos. Information on natural resource user motivations and satisfactions, such as studied here, has the potential to guide management actions and the ways in which managers interact with resource users. A plain language summary is available for this article.

The biology of three landlocked and a riverine population of Galaxias maculatus were examined in western Victoria, Australia. All systems supported reproducing populations of these fish, including Lake Corangamite which had salinities that on occasion reached 82. Spawning sites in Lake Corangamite were located in adjacent tributaries and not in the main lake as was the case for other populations. The smallest fish were found in the fresh water Lake Purrumbete and the largest in the hypersaline Lake Corangamite. The size at which 50% of the population attained sexual maturity varied across sites, with fish maturing at a smaller size in Lake Purrumbete, followed by the Merri River, Lake Bullen Merri and Lake Corangamite. Condition was higher in the freshwater Lake Purrumbete and there was no relationship between condition and temperature, conductivity, turbidity and pH; but there was a positive relationship between condition and dissolved oxygen. Length frequency analysis suggested that the majority of fishes live for a year.

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