Monsoonal wet season influences the migration tendency of a catadromous fish (barramundi Lates calcarifer) DOI Creative Commons
Brien H. Roberts, John R. Morrongiello, David L. Morgan

et al.

Journal of Animal Ecology, Journal Year: 2023, Volume and Issue: 93(1), P. 83 - 94

Published: Nov. 20, 2023

Abstract Many animals exhibit partial migration, which occurs when populations contain coexisting contingents of migratory and resident individuals. This individual‐level variation in migration behaviour may drive differences growth, age at maturity survival. Therefore, is widely considered to play a key role shaping population demography. Otolith chemistry microstructural analysis were used identify the environmental‐ individual‐specific factors that influence facultatively catadromous barramundi ( Lates calcarifer ) two distinct life history stages: firstly, as juveniles migrating upstream into fresh water; secondly, adults or sub‐adults returning estuarine/marine spawning habitat. Monsoonal climate played an important determining propensity juveniles: individuals born driest year examined (weak monsoon) more than twice likely undergo freshwater those wettest (strong year. In contrast, ontogenetic timing return migrations estuary by was highly variable not strongly associated with environmental parameters examined. We propose scarce resources within saline natal habitats during lower rainfall years provide ecological incentive for migrate upstream, whereas abundant higher promote histories estuaries. conclude inter‐annual climatic variation, here evidenced monsoonal strength, plays driving persistence diversified wild populations.

Language: Английский

A just world on a safe planet: a Lancet Planetary Health–Earth Commission report on Earth-system boundaries, translations, and transformations DOI Creative Commons
Joyeeta Gupta, Xuemei Bai, Diana Liverman

et al.

The Lancet Planetary Health, Journal Year: 2024, Volume and Issue: 8(10), P. e813 - e873

Published: Sept. 12, 2024

Language: Английский

Citations

35
Living within the safe and just Earth system boundaries for blue water DOI Creative Commons
Ben Stewart‐Koster, Stuart E. Bunn, Pamela Green

et al.

Nature Sustainability, Journal Year: 2023, Volume and Issue: 7(1), P. 53 - 63

Published: Nov. 16, 2023

Abstract Safe and just Earth system boundaries (ESBs) for surface water groundwater (blue water) have been defined sustainable management in the Anthropocene. Here we assessed whether minimum human needs could be met with from within individual river basins alone and, where this is not possible, quantified how much would required. Approximately 2.6 billion people live needed because they are already outside ESB or insufficient to meet ESB. 1.4 demand-side transformations required as either exceed face a decline recharge cannot A further 1.5 ESB, needs, requiring both supply- transformations. These results highlight challenges opportunities of meeting even basic access protecting aquatic ecosystems.

Language: Английский

Citations

30
Integrated assessment of river development on downstream marine fisheries and ecosystems DOI Creative Commons
Éva E. Plagányi, Rob Kenyon, Laura K. Blamey

et al.

Nature Sustainability, Journal Year: 2023, Volume and Issue: 7(1), P. 31 - 44

Published: Nov. 2, 2023

Abstract Demands on freshwater for human use are increasing globally, but water resource development (WRD) has substantial downstream impacts fisheries and ecosystems. Our study evaluates trade-offs between WRDs ecosystem functioning considering alternative dam extraction options, diverse eco-hydrological responses catchment-to-coast connectivity. We used a data-driven ensemble modelling approach to quantify the of WRDs. WRD varied from weakly positive severely negative depending species, scenario cross-catchment synergies. Impacts fishery catches broader (including mangroves) increased with catchment developments volume removed, or if flow reduced below threshold level. found complex, linked-catchment dependence banana prawns floods. Economic risks this important more than doubled under some scenarios. Sawfish emerged as most sensitive across range findings highlight need consider marine ecosystems inform sustainable management world’s remaining free-flowing rivers.

Language: Английский

Citations

12
How can we live within the safe and just Earth system boundaries for blue water? DOI Creative Commons
Ben Stewart‐Koster, Stuart E. Bunn, Pamela Green

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: May 2, 2023

Abstract Safe and just Earth System Boundaries (ESBs) for surface groundwater (blue water) have been defined sustainable water management in the Anthropocene. We evaluate where minimum human needs can be met within ESB and, this is not possible, identify how much required. 2.6 billion people live catchments needed because they are already outside or insufficient to meet ESB. Approximately 1.4 demand side transformations required as either exceed face a decline recharge cannot A further 1.5 with needs, requiring both supply demand-side transformations. These results highlight challenges opportunities of meeting even basic access protecting aquatic ecosystems.

Language: Английский

Citations

11
Growth and morphology of Critically Endangered green sawfish Pristis zijsron in globally important nursery habitats DOI Creative Commons
Karissa O. Lear,

Travis Fazeldean,

Rebecca L. Bateman

et al.

Marine Biology, Journal Year: 2023, Volume and Issue: 170(6)

Published: May 6, 2023

Abstract Understanding growth rates and other basic life-history information of imperilled species is essential to assessing the extent threats a population, but often difficult due limited access study subjects. Here we used mark-recapture data estimate juvenile Critically Endangered green sawfish ( Pristis zijsron ) in globally important nursery eastern Indian Ocean (Western Australia). Our results suggest that this part central Western Australian coast significantly slower compared populations on north-eastern Australia. Additionally, differed between nearby areas within region, potentially differential productivity or anthropogenic effects. Morphological relationships total length, rostral mouth gape, clasper length are presented, which will allow for greater accuracy estimating biological parameters species, while updated size at maturity (> 3200 mm) birth (approximately 750–900 help clarify data-poor species. Furthermore, there were distinct differences number teeth population throughout their current distribution, indicating substantial genetic differentiation globally. These accurately assess trajectories potential impacts fisheries sawfish. highlight importance population-specific threatened considering long-term developments activities.

Language: Английский

Citations

11
Spatial and temporal patterns in the distribution of fishes DOI
Susana França, Filipe Martinho, Frederico Almada

et al.

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 199 - 222

Published: Jan. 1, 2025

Language: Английский

Citations

0
The overlooked impacts of freshwater scarcity on oceans as evidenced by the Mediterranean Sea DOI Creative Commons
Diego Macías, Berny Bisselink, César Carmona‐Moreno

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Feb. 3, 2025

Water stress is an urgent issue in many regions worldwide, particularly southern European countries. This study reveals the consequences of decreased freshwater flow on marine ecosystems Mediterranean Sea due to climate change and escalating water demands. A 41% reduction river may result a 10% decline primary productivity 6% decrease biomass commercial fish invertebrate species. Regional reductions could be as high 12% 35%, disrupting coastal their related socio-economic sectors. The findings emphasize importance considering nutrient load changes management strategies incorporating ecosystem requirements into environmental for bodies. Integrated, source-to-sink approaches are crucial sustainable resource utilization. Freshwater demand cause strong species biomass, affecting activities.

Language: Английский

Citations

0
Trace element and δ13C values of the banana prawn Penaeus merguiensis reveal the importance of catchment-derived resources across both estuarine and nearshore habitats DOI Creative Commons
Samantha Munroe, Kaitlyn O’Mara, Rob Kenyon

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 206, P. 107028 - 107028

Published: Feb. 22, 2025

Language: Английский

Citations

0
Associations between body condition and seasonal freshwater outflow in a coastal marine fish (Protonibea diacanthus) in the wet-dry tropics of northern Australia DOI
Jo Randall, Hayden T. Schilling,

Brendan J. Adair

et al.

Fisheries Research, Journal Year: 2025, Volume and Issue: 285, P. 107343 - 107343

Published: March 21, 2025

Language: Английский

Citations

0
Impacts of water resource development on tropical flow-dependent fisheries: a case study of northern Australia DOI Creative Commons
Kaitlyn O’Mara, Leah Beesley, R. Keller Kopf

et al.

Reviews in Fish Biology and Fisheries, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Abstract River flows support productive freshwater, estuarine, and coastal fisheries around the world, many tropical are reliant on a seasonally variable flow regime. Understanding dependence of species impacts water resource development is an important consideration for management. Research conducted in free-flowing rivers critical understanding flow-dependence because findings can be used to mitigate development, which typically alters regimes. We synthesised research flow-dependent wet-dry tropics northern Australia, area where resources relatively undeveloped compared regions. included fish crustacean that harvested by commercial, recreational, or Indigenous fishers evaluated potential alteration, habitat fragmentation degradation associated with development. Overall, our indicated likely vary mode extraction among varying use life-history requirements response multiple factors including changes flow, connectivity quality. Among these were reduced recruitment rely flood years maintain stock biomass (via wet season extraction), movement opportunity quality freshwater dry refuge season/groundwater entrapment entrainment infrastructure (e.g. pumps, channels, storages). Knowledge regarding learned from may applied other regions environmental developments.

Language: Английский

Citations

0