Recovery of the Seagrass Zostera noltei and Commercial Bivalve Populations After Shellfish Harvesting DOI Creative Commons
Marta Román, Elsa Vázquez,

Andrés Simón

et al.

Estuaries and Coasts, Journal Year: 2024, Volume and Issue: 47(8), P. 2360 - 2376

Published: July 23, 2024

Abstract Conservation efforts have raised awareness about the impact of small-scale fisheries on distribution seagrass plants. The patterns recovery Zostera noltei and commercial bivalves Cerastoderma edule , Ruditapes decussatus philippinarum after shellfish harvesting were studied in a field experiment bed NW Spain. Sample plots subjected to single disturbance two types treatments three zones characterized by different frequency density. photosynthetic efficiency (F v /F m ), shoot density, leaf length carbohydrate content Z. monitored every months during one year, C N leaves biomass plants measured year disturbance. abundance adults, juveniles recruits condition index adult quantified experimental harvesting. Shoot density remained low ten but recovered control values year. Carbohydrate contents apical rhizomes lower disturbed (treated) plots, whereas no effect was observed F . Denser more complex patches faster. below size while adults size, did not vary, indicating that hampered pressure. findings also suggest meadows can recover within if areas are rotated dense preserved.

Language: Английский

Combined effects of food and temperature on the chronic toxicity of polyethylene terephthalate microplastic fragments in Manila clam Ruditapes philippinarum DOI
Jinyoung Song,

H W Nam,

Abdallah Elaiw Mohamed Ali

et al.

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 215, P. 117911 - 117911

Published: April 8, 2025

Language: Английский

Citations

0
Novel functional drainage density for Blue Carbon Ecotones DOI
Jiaqi Zhang, Matteo Convertino

Ecological Indicators, Journal Year: 2025, Volume and Issue: 174, P. 113385 - 113385

Published: April 16, 2025

Language: Английский

Citations

0
Context-dependent resilience of intertidal seagrass and venerid clams after hyposalinity stress DOI
María Reina, Elsa Vázquez, Rosa M. Viejo

et al.

Marine Ecology Progress Series, Journal Year: 2024, Volume and Issue: 729, P. 117 - 133

Published: Jan. 8, 2024

Reduced salinity in estuarine areas can negatively affect intertidal seagrass meadows where clams are harvested. However, legacy effects of hyposalinity on seagrasses and infaunal their interactions have seldom been studied. Legacy were examined the Zostera noltei juveniles Venerupis corrugata , Ruditapes decussatus R. philippinarum . Low-salinity stress was applied to mesocosms that included assemblages 3 clam species subsequently transplanted 2 shellfish beds characterized by different environmental conditions (i.e. seawater temperature, nutrient concentration). After mo, morphological biochemical traits Z. growth mortality measured. Past increased decreased leaf length. The native V. most vulnerable past hyposalinity, whereas introduced resilient. presence associated with greater nitrogen content biomass above-ground parts Survival after below than bare sediment, indicating persistent positive following harsh during low-salinity periods field. At colder more nutrient-rich site, frequent performed better. This supported influence abiotic recovery process. Nonetheless, enhanced survival indicates could favour sustainability these shellfisheries exposure extreme rainfall events.

Language: Английский

Citations

3
Fluctuations in abundance of the striped venus clam Chamelea gallina in the southern Adriatic Sea (Central Mediterranean Sea): knowledge, gaps and insights for ecosystem-based fishery management DOI Creative Commons
Roberto Carlucci, Daniela Cascione, Pasquale Ricci

et al.

Reviews in Fish Biology and Fisheries, Journal Year: 2024, Volume and Issue: 34(2), P. 827 - 848

Published: March 7, 2024

Abstract An assessment on the fluctuations in abundance of striped venus clam ( Chamelea gallina ) southern Adriatic Sea (Central Mediterranean Sea), and northern Gargano area, has been conducted through both historical information recent data from monitoring surveys during period 1997–2019. Production trends, conditions commercial stock biomass, depth distribution pattern juveniles sizes were analysed testing temporal differences. Moreover, exploitation beds recruitment events investigated 2018–2019. Changes using non-parametric tests for juvenile (length class, LC < 22 mm) (LC ≥ fractions. Hydrodynamic changes, temperature salinity variations explored a 3D hydrodynamic numerical model (MIKE 3 FM-HD) statistical analysis, as well changes benthic assemblages impacted by hydraulic dredges PERMANOVA other multivariate analysis. The results showed decline production biomass C. 1997–2019 period, regression limit clams’ towards shallower waters. A significant reduction was observed 2018–2019 with very limited recruitment. fishing high impacts summer 2018. Overall, water currents predominantly directed offshore 2018, spawning period. This could affect larval dispersal settlement unsuitable bottoms. Anomalies (high peaks August > 28 °C) (low values spring 37 PSU) have induced stress mortality entire bed study area. first highlights need to integrate environmental stocks clams Sea, better understand climate change effects support effective ecosystem-based fishery management.

Language: Английский

Citations

2
Recovery of fishery-stressed seagrass meadows is driven by improvements in wastewater management DOI Creative Commons
Salvador Román, Celia Olabarría, Marta Román

et al.

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 201, P. 116282 - 116282

Published: March 23, 2024

As ecosystem engineers, seagrasses provide major benefits to coastal habitats worldwide. Nonetheless, their dynamics remain poorly understood in local areas. Three seagrass (Zostera noltei) meadows located within shellfish beds Galicia (NW Spain) were selected assess the intra and inter-annual changes by considering effects of harvesting, temperature sewage pollution. Seagrass cover increased between April October, when sediment ranged from 15 20 °C, while terms long-term there was a mean gain 3 % year−1 2004 2023. Shellfishing caused mechanical disturbance meadows, but seasonal depended on temperature. However, we pointed out built new wastewater treatment plants since 1990 that improved water quality as main driver increase cover. Environmental policies enhance seawater limit harvesting pressure are essential maintain this positive trend.

Language: Английский

Citations

1
Recovery of the Seagrass Zostera noltei and Commercial Bivalve Populations After Shellfish Harvesting DOI Creative Commons
Marta Román, Elsa Vázquez,

Andrés Simón

et al.

Estuaries and Coasts, Journal Year: 2024, Volume and Issue: 47(8), P. 2360 - 2376

Published: July 23, 2024

Abstract Conservation efforts have raised awareness about the impact of small-scale fisheries on distribution seagrass plants. The patterns recovery Zostera noltei and commercial bivalves Cerastoderma edule , Ruditapes decussatus philippinarum after shellfish harvesting were studied in a field experiment bed NW Spain. Sample plots subjected to single disturbance two types treatments three zones characterized by different frequency density. photosynthetic efficiency (F v /F m ), shoot density, leaf length carbohydrate content Z. monitored every months during one year, C N leaves biomass plants measured year disturbance. abundance adults, juveniles recruits condition index adult quantified experimental harvesting. Shoot density remained low ten but recovered control values year. Carbohydrate contents apical rhizomes lower disturbed (treated) plots, whereas no effect was observed F . Denser more complex patches faster. below size while adults size, did not vary, indicating that hampered pressure. findings also suggest meadows can recover within if areas are rotated dense preserved.

Language: Английский

Citations

1