Assessing tropical coastal dynamics across habitats and seasons through different dimensions of fish diversity

Silva, Victor Emmanuel Lopes da; Dolbeth, Marina; Fabré, Nidia Noemí

doi:10.1016/j.marenvres.2021.105458

Cited by 20 publications

(5 citation statements)

References 72 publications

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“…The possible reason why PR hotspots were not observed in these areas was that higher phylogenetic redundancy possibly exists in areas with more species richness (Ricotta et al., 2020). For example, higher phylogenetic redundancy was observed in fish communities in the coastal southwestern Atlantic, where species richness is higher than in the north (da Silva et al., 2021). This phylogenetic redundancy reduces the phylogenetic distinctiveness of species within the community, and therefore, no PR hotspots were detected.…”

Section: Discussionmentioning

confidence: 99%

Considering species functional and phylogenetic rarity in the conservation of fish biodiversity

Lin,

Liu,

Lin

et al. 2023

Diversity and Distributions

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AimRare species make substantial contributions to coastal ecosystem functions. Functional rarity (FR) and phylogenetic rarity (PR) are important features for biodiversity conservation. This work aimed to discuss the necessity and reasonableness of conserving fish FR and PR in coastal seas.LocationChina.MethodsBy compiling historical fish investigation data, joint species distribution modelling (JSDM) was applied to model fish communities in coastal China Seas. Biogeographic patterns of FR and PR were explored, and the effectiveness of current MPA networks in terms of match/mismatch with the hotspots of rarity was assessed.ResultsA total of 44 functionally rare species and 22 phylogenetically rare species were identified. Six of these species were both functionally and phylogenetically rare, and only one was listed as endangered on the Red List of the International Union for Conservation of Nature (IUCN). Functional rarity hotspots covered 10.27% of the coastal areas, which geographically converged in the southern and eastern coast of Taiwan, the Yangtze River Estuary and the Yellow River Estuary. Phylogenetic rarity hotspots only covered 3.06% of the coastal areas, which were sporadically distributed in the coastal East China Sea, the Bohai Sea and the northern Yellow Sea. Current marine‐protected areas (MPAs) only represented 16.16% of the FR hotspots and 20.48% of the PR hotspots, indicating substantial mismatched areas between the MPAs and the hotspots of FR and PR.Main ConclusionsOnly considering threatened species in conservation practices will omit functionally and phylogenetically rare species because FR and PR are not necessarily correlated with species threat status on the IUCN Red List. Functional rarity hotspots do not necessarily overlap with PR hotspots, and current MPAs mismatch the majority of these areas. We therefore advocate that conservation prioritization and expansion of MPA networks should account for FR and PR both at the species and site levels.

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Section: Discussionmentioning

confidence: 99%

Considering species functional and phylogenetic rarity in the conservation of fish biodiversity

Lin,

Liu,

Lin

et al. 2023

Diversity and Distributions

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“…Samuel [46] stated that differences in the variability of tropical organisms can be found if sampling is carried out in two different seasons [44]. da Silva et al [45] stated that seasonal changes in the tropics cause changes in the variability of organisms in an ecosystem [45].…”

Section: Figure 5 Histogram Of Evenness Indexmentioning

confidence: 99%

The Roles of Macrobenthic Molluscs Structure in Assessing Ecological Status at Mangrove and Aquaculture Areas

P. Putro,

Anarizta,

Muhammad

et al. 2023

Jurnal Teknologi

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stability of Coastal water ecosystem could have an effect on mangrove vegetation and anthrophogenic activities. This stability correlates significantly with the structure of the macrobenthic mollusk community in the area, some of this biota are bioindicator agents. This study aims to assess the ecological functions of macrobenthic molluscs, evaluate the spatial and temporal differences in their community structure, and analyze their correlation to environmental parameters in aquaculture and mangrove areas in the Karimunjawa Islands, Jepara, Central Java, Indonesia. Purposive random sampling method was conducted at KJABB-IMTA aquaculture and mangrove areas between July and September 2021. Collected data were analyzed using k-dominance curve, NMDS ordination, PCA, and BIO-ENV using Primer 6.1.5 software. Based on Paired T Test result, comparison between each location showed significant difference (t=15.916, P<0.05, dF=5) meanwhile comparison between each sampling period showed insignificant result. The highest abundance and diversity were found in the aquaculture area and dominated by gastropods. Significant differences occurred in the structure of macrobenthic molluscs between the two study locations (t=15.916, P<0.05, df=5), while the comparison between their composition and abundance between sampling times was not significant. The abiotic elements that primarily impact the structure of macrobenthic mollusks are the particle size composition of the substrate (mud) and dissolved oxygen (DO) based on PCA and BIO-ENV analysis (BIO-ENV; r=0.733).

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“…Seasonal seawater temperature patterns impact the metabolism of fish species, the activities of larvae, and the distribution of fish eggs [20,[27][28][29]. The migration and spawning behaviors of fish species are likewise influenced by seasonal variations in temperature and salinity, leading to fluctuations in species number, biomass, and density [30][31][32][33]. Thus, to ensure sustainable use of fishery resources, it is necessary to obtain basic information on fish communities and their responses to changes in the seasonal variations in environmental factors.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Effects of Environmental Factors on Seasonal Variations in Fish Diversity on a Coastal Island in Western Japan

Nhat,

Saito,

Hamada

et al. 2024

Environments

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Coastal habitats are crucial for supporting ecological processes and serve as vital ecosystems for diverse fish species, providing essential functions such as feeding, nursery provision, and reproductive habitats. Fish communities are ecologically important components of coastal ecosystems and are affected by multiple environmental factors. Despite their importance, determining the effects of environmental factors on seasonal variations in fish species diversity and community dynamics remains a challenge. The advent of environmental DNA (eDNA) technology, an environmentally conscious approach, has resulted in considerable advancements in recent years and has been progressively adopted for marine fish population monitoring. Here, we used environmental DNA metabarcoding to study seasonal variations in fish community structure on a coastal island, and we assessed the effects of environmental factors in structuring these communities. Our findings revealed a rich diversity of 72 fish species across 40 families and 23 orders in the seawater surrounding an island of the Seto Inland Sea (SIS), Western Japan. Notably, the composition of fish communities varied significantly between seasons, with seawater temperature, salinity, and dissolved inorganic phosphorus (DIP) concentration identified as important factors correlated with fish communities’ structures. In conclusion, our study provides useful information of fish diversity, and we suggest that eDNA is a valuable technique for monitoring fish diversity in coastal areas. These findings are crucial for ecological studies and the environmental monitoring of oceanic coastal environments.

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Assessing tropical coastal dynamics across habitats and seasons through different dimensions of fish diversity

Cited by 20 publications

References 72 publications

Considering species functional and phylogenetic rarity in the conservation of fish biodiversity

Considering species functional and phylogenetic rarity in the conservation of fish biodiversity

The Roles of Macrobenthic Molluscs Structure in Assessing Ecological Status at Mangrove and Aquaculture Areas

Evaluation of the Effects of Environmental Factors on Seasonal Variations in Fish Diversity on a Coastal Island in Western Japan

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