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Marcus Sheaves
James Cook University
HabitatEcologyFisheryBiologyEstuary
183Publications
31H-index
3,454Citations
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Publications 181
Newest
#1Nathan J. Waltham (JCU: James Cook University)H-Index: 14
#2Marcus Sheaves (JCU: James Cook University)H-Index: 31
Abstract To test the model that eco-engineering plant boxes on seawalls sustain water temperatures within thermal tolerance to maximize tropical marine biodiversity, we conducted acute thermal effects (AET) experiments using intertidal gastropods (Nerita albicilla and Littoraria articulata). The AET50 (50th percentile) for N. albicilla (39.6 °C) was higher than L. articulata (32.8 °C). Loggers (Hobo) in boxes on a seawall positioned for full exposure to air temperature at mean sea level (
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#1Marcus Sheaves (JCU: James Cook University)H-Index: 31
#2Kátya G. Abrantes (JCU: James Cook University)H-Index: 22
Last. Michael Bradley (JCU: James Cook University)H-Index: 4
view all 9 authors...
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#1Kristin I. Jinks (Griffith University)H-Index: 1
#2Michael Rasheed (JCU: James Cook University)H-Index: 20
Last. Rod M. Connolly (Griffith University)H-Index: 48
view all 8 authors...
Abstract All fishery food webs are ultimately underpinned by organic matter produced by algae and plants, some of it supplied by primary producers at the fringes of fish habitats. This is no different in tropical and subtropical estuaries where secondary production by crustaceans and finfish may depend on coastal wetlands (e.g. mangroves, seagrass, saltmarshes) abutting channels. Coastal urbanisation is a major cause of wetland loss globally. Hypothetically, reduced wetland area may propagate to...
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#1Daykin HarohauH-Index: 4
#2Jessica BlytheH-Index: 12
Last. Amy DiedrichH-Index: 15
view all 4 authors...
Increasing pressure on coastal fisheries poses serious threats to local livelihoods and the food security of Pacific Islanders. In response, governments and development agencies have explored tilapia pond aquaculture as an alternative fish production source. Yet, evidence to date on the impact of tilapia aquaculture on rural livelihoods has been inconclusive. Drawing on the sustainable livelihood framework, we analysed the contribution of Mozambique tilapia (Oreochromis mossambicus) aquaculture ...
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#1Cesar Herrera (JCU: James Cook University)H-Index: 1
#1C. A. Herrera (JCU: James Cook University)
Last. Marcus Sheaves (JCU: James Cook University)H-Index: 31
view all 4 authors...
Despite the increasing need to catalogue and describe biodiversity and the ecosystem processes it underpins, these tasks remain inherently challenging. This is particularly true for species that are difficult to observe in their natural environment, such as fossorial and cryptic crabs that inhabit intertidal sediments. Traditional sampling techniques for intertidal crabs are often invasive, labour intensive and/or inconsistent. These factors can limit the amount and type of data that can be coll...
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A predictable aggregation of dwarf minke whales (Balaenoptera acutorostrata subspecies) occurs annually in the Australian waters of the northern Great Barrier Reef in June–July, which has been the subject of a long-term photo-identification study. Researchers from the Minke Whale Project (MWP) at James Cook University collect large volumes of underwater digital imagery each season (e.g., 1.8TB in 2018), much of which is contributed by citizen scientists. Manual processing and analysis of this qu...
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#1Christopher J. Henderson (University of the Sunshine Coast)H-Index: 7
#2Ben L. Gilby (University of the Sunshine Coast)H-Index: 12
Last. Andrew D. Olds (University of the Sunshine Coast)H-Index: 21
view all 10 authors...
Ecosystem functioning is positively linked to biodiversity on land and in the sea. In high-diversity systems (e.g. coral reefs), species coexist by sharing resources and providing similar functions at different temporal or spatial scales. How species combine to deliver the ecological function they provide is pivotal for maintaining the structure, functioning and resilience of some ecosystems, but the significance of this is rarely examined in low-diversity systems such as estuaries. We tested wh...
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#1Nathan J. Waltham (JCU: James Cook University)H-Index: 14
#2Michael Elliott (University of Hull)H-Index: 60
Last. Colin K. C. Wen (THU: Tunghai University)H-Index: 7
view all 18 authors...
On 1 March 2019, the United Nations (UN) General Assembly (New York) declared 2021–2030 the "UN Decade on Ecosystem Restoration." This call to action has the purpose of recognizing the need to massively accelerate global restoration of degraded ecosystems, to fight the climate heating crisis, enhance food security, provide clean water and protect biodiversity on the planet. The scale of restoration will be key; for example, the Bonn Challenge has the goal to restore 350 million km2 (almost the s...
4 CitationsSource
#1Bhavnah Komul Kalidin (JCU: James Cook University)
#1Komul Kalidin Bhavnah (JCU: James Cook University)
Last. Sheaves Marcus (JCU: James Cook University)
view all 3 authors...
Abstract Managing small-scale fisheries (SSF) is complicated because fishers rarely selectively target valued species but try to maximise their catch by keeping everything regardless of species or size. About 50% of the fish captured for human consumption globally, is produced by SSF, however, there has been repeated failures of fisheries management to effectively regulate this resource by data poor countries due to poor or non-existent long-term monitoring and evaluation (M&E). To understand th...
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#1Christopher J. Henderson (University of the Sunshine Coast)H-Index: 7
#2Ben L. Gilby (University of the Sunshine Coast)H-Index: 12
Last. Andrew D. Olds (University of the Sunshine Coast)H-Index: 21
view all 11 authors...
The ecological impacts of landscape modification and urbanisation have transformed the composition of plant and animal assemblages, and altered the condition of ecosystems globally. Landscape transformation influences the spatial distribution of species and ecological functions by selecting for generalist species with wide ecological niches, which can adapt to opportunities in highly-modified environments. These effects of landscape modification can shape functional diversity on land, but it is ...
2 CitationsSource
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