Estuaries and Coasts, Год журнала: 2024, Номер 48(2)
Опубликована: Дек. 17, 2024
Язык: Английский
Marine Environmental Research, Год журнала: 2024, Номер 195, С. 106379 - 106379
Опубликована: Фев. 1, 2024
Язык: Английский
Процитировано
7
Estuarine Coastal and Shelf Science, Год журнала: 2023, Номер 282, С. 108250 - 108250
Опубликована: Янв. 31, 2023
Язык: Английский
Процитировано
10
Estuaries and Coasts, Год журнала: 2023, Номер 46(4), С. 891 - 905
Опубликована: Фев. 22, 2023
Abstract Predation is important in maintaining the community structure, functioning and ecological resilience of estuarine seascapes. Understanding how predator seascape context habitat condition combine to influence predation vital managing ecosystems. We measured relationships between species richness, abundance individual abundances as well condition, on relative probability mangrove forests, seagrass meadows unvegetated sediment across 11 estuaries Queensland, Australia. was quantified using videoed assays tethered invertebrates (i.e. ghost nippers, Trypaea australiensis ) fish assemblages were surveyed remote underwater video systems. Yellowfin bream ( Acanthopagrus australis dominated all three habitats; however, not correlated with yellowfin abundance. Instead, increased fourfold mangroves threefold when predatory richness highest (> 3 species), 10 individuals). forests a lower pneumatophore density (< 50/m 2 ). In seagrass, at sites that had greater extent 2000 m longer shoot lengths 30 cm) closer m) estuary mouth. more extensive salt marshes 15000 nearby. These findings demonstrate importance supplementing estuaries, despite dominance single species, highlight can have strong effects estuaries.
Язык: Английский
Процитировано
10
Marine Biology, Год журнала: 2024, Номер 171(7)
Опубликована: Май 29, 2024
Abstract Estuaries are crucial feeding, nursery and resting sites for fish but can also be subject to the impacts of severe flooding. The environmental features estuaries mediate how they respond these impacts. For example, size, configuration, context estuarine habitats across seascapes affects value patches fish, so assemblages at with a greater habitat extent or closer mouth an estuary may rebound more quickly from We investigated once in 100-year flood event affected approximately 600 13 six (bare sediments, log snags, mangrove forests, rocky structures, saltmarsh seagrass meadows) southeast Queensland, Australia, determined whether were mediated by position within broader seascape. Sites surveyed annually 2020/2021 (pre-flood) 2022 (6 months post-flood) using underwater videography. Flooding modified structure community reduced abundance targeted local fisheries all habitats. Crucially, effects on near expansive urbanisation some ecosystems, lower nearer mouth. Maximising natural floods should priorities restoration management plans seeking maintain biodiversity productivity face increasing climate-related disturbances.
Язык: Английский
Процитировано
4
Functional Ecology, Год журнала: 2025, Номер unknown
Опубликована: Май 16, 2025
Abstract In the Mediterranean Sea, fish assemblages associated with seagrasses host a relevant percentage of total biodiversity. While structural complexity, coverage and distribution are known to influence species richness abundance, their effect on functional composition faunal is still unclear. Moreover, little about relationships fish‐specific feeding, behavioural reproductive strategies potential use this habitat during different life stages. We characterized structure in three main seagrasses, using specific traits be meadows (e.g. as nursery, refuge and/or foraging areas). also hypothesized that given combinations could probability being observed well‐defined stages, thereby linking use. Fish non‐randomly structured, independently either seagrass, taxonomic or diversity, suggesting convergence structures. core functionally similar by r‐like low‐to‐intermediate trophic levels, although differing range exhibited predator fauna. unique significantly likelihood seagrass Large‐sized active predation modes most likely visit adults for foraging, contrast smaller species, which have higher both juvenile adult Our findings reinforce view predominant may driven trade‐off between life‐history feeding strategies. As largely involved structuring food webs recruitment, characterisation seagrass‐associated would enhance our understanding impact multiple threats marine Read free Plain Language Summary article Journal blog.
Язык: Английский
Процитировано
0
Journal of Applied Ecology, Год журнала: 2023, Номер 60(7), С. 1340 - 1351
Опубликована: Апрель 28, 2023
Abstract Mangroves often support rich fish and crustacean communities, although faunal abundance diversity show strong spatiotemporal variability. Consistent patterns in mangrove animal communities might be dictated by forest characteristics, seascape context or some combination of these factors. Predicting drivers spatial heterogeneity can better the zoning forests for management purposes, example identifying sites important fisheries nursery provision. We sampled 14 within a large (4000 ha) Kenya, quarterly over period 2 years. There were clear consistent differences quality diversity. Forest characteristics (as summarised complexity index, CI) metrics (the presence, area configuration contiguous seagrass) predictors site differences. However, they showed opposite influences on dominant members faunas, with CI correlated negatively fishes positively crustaceans, seagrass crustaceans. Synthesis applications . Sites same exhibit abundance. (and particularly species them) act differently response to characteristics. Old growth, mature forest, set patches bare sediment, was associated highest In contrast, denser smaller trees seascapes larger, continuous areas Zoning management, as mandated new Kenyan policy, will need consider use between
Язык: Английский
Процитировано
8
Estuarine Coastal and Shelf Science, Год журнала: 2024, Номер 298, С. 108662 - 108662
Опубликована: Фев. 2, 2024
Seascape context is pivotal in shaping the abundance and diversity of fishes within coastal seascapes. However, pervasive human disturbances modify composition seascapes, necessitating a thorough understanding how these effects interact to influence ecosystems, which critical for implementing effective conservation management plans. In ecosystems such as exposed rocky headlands their abutting reefs, influences remain largely unquantified, thereby limiting this crucial landform. We sampled fish assemblages around 12 across 300 km coastline over two seasons (austral spring winter) eastern Australia with baited remote underwater video systems. aimed determine seascape context, benthic habitat composition, exposure, disturbance shape community harvested species, functional feeding groups key indicator species headlands. were important Sites that less than 2.5 from estuaries contained greater richness higher piscivores. more 0.9 urban land supported total abundance. had km2 reef nearby herbivore abundance, while those 2–3.5 omnivores fishes. contrast, sites 1 zoobenthivores. These results highlight combined on diversity, group Minimising extent urbanisation prioritising reefs near area, is, therefore, essential maintaining biodiversity fisheries productivity
Язык: Английский
Процитировано
3
Marine Environmental Research, Год журнала: 2024, Номер 197, С. 106465 - 106465
Опубликована: Март 20, 2024
Язык: Английский
Процитировано
2
Estuaries and Coasts, Год журнала: 2024, Номер 47(6), С. 1668 - 1683
Опубликована: Июль 5, 2024
Abstract Long-term declines in coastal water quality and sedimentation can affect the restoration success of ecosystems such as seagrass shellfish reefs. Resnagging seascapes offers a potential alternative method that is not reliant on abiotic conditions which may enhance degraded landscapes for fish fisheries. While common freshwater ecosystems, interventions are unusual despite log snags supporting significant benefits fish. In this study, we identify spatial (e.g. seascape connectivity), habitat condition snag complexity food availability) variables best explain variation assemblages to help prioritise placement design resnagging efforts estuaries. We surveyed using underwater videography at 363 sites across 13 estuaries southeast Queensland, Australia, over 3 years. Sites less than 10,000 m from estuary mouth, more 2500 urban structures located depths < harboured diverse assemblages. mouth with lower (< 25%) algae cover greater total abundance harvested abundance. Similar trends were found individuals key functional groups, although these mediated by other contexts area natural habitat) chlorophyll-a concentration dissolved oxygen saturation). Our results indicate fisheries be maximised if planned strategically.
Язык: Английский
Процитировано
1
Estuarine Coastal and Shelf Science, Год журнала: 2024, Номер 305, С. 108873 - 108873
Опубликована: Июль 6, 2024
Connectivity between land and sea through the movement of species, energy nutrients means that land-based impacts can affect structure functioning nearby coastal ecosystems. As interface sea, estuaries are often faced with increasing pressures from catchment modifications (e.g. removal terrestrial vegetation) which alter overall health degradation water quality due to an increase in runoff) change value habitat for many marine species. These landscape-scale can, however, be mediated variations context connectivity seascapes greater extent vegetated ecosystems help filter nutrients). We surveyed fish across five over four years using underwater videography sought correlations biodiversity abundance variables indexing use, seascape connectivity, quality. Fish assemblages were more abundant diverse at sites had lower chlorophyll-a concentrations nearer estuary mouth, conjunction catchments containing higher percent natural heterogenous seascapes. Sites supported indicator species functional groups fisheries values, comparison high chlorophyll-a. This research direct management better prioritise ecosystems, thereby enhancing richness abundance, group value.
Язык: Английский
Процитировано
1