Contaminant bioaccumulation and biochemical responses of the bivalve Scrobicularia plana and the polychaete Hediste diversicolor to ecosystem restoration measures using Zostera noltei.

A Nature-based Solution (NbS) using Zostera noltei transplants was implemented to restore an area historically contaminated with metals and enhance local environmental conditions. However, the benefits of this restoration approach on the health of resident benthic communities remained unclear, considering the time span of one year of implementation. This study evaluated the short-term effects of transplantation by evaluating bioaccumulation and biochemical responses in Scrobicularia plana and Hediste diversicolor.

Comparative risk assessment of different agro-industrial wastewaters in an arid environment: lessons from Antinaco-Los Colorados Valley, Argentina.

Agro-industries generate significant volumes of wastewaters that cause environmental pollution due to they are discharged in soil or surface water. In particular, arid environments are especially vulnerable to this impact as they are characterized by water scarcity, high temperature, and unproductive soils. Thus, this study aimed to assess the comparative toxicity of winery, olive oil mill, table olive, tomato processing, and walnut shelling wastewaters from an arid region on aquatic and terrestrial organisms, and its relationship with physicochemical characteristics, and sodification and salinization indexes.

Transplantation of seagrass (Zostera noltei) as a potential nature-based solution for the restoration of historically contaminated mudflats.

Within the UN Decade on Ecosystem Restoration (2021-2030) framework, a Nature-based Solution (NbS) using Zostera noltei transplants was tested to restore a historically contaminated intertidal area. In-situ transplantation relied on patches of seagrass and sediment from a Donor meadow and its evolution was monitored for two years. The evaluation of the transplant success encompassed the seagrass coverage area, seagrass biomass, tissue mercury (Hg) accumulation, and photosynthetic efficiency.

The effects of different densities of Asparagopsis armata (Harvey, 1855) seaweed on the clam Ruditapes philippinarum (A. Adams and Reeve, 1850): Insights from a laboratory assessment.

Several invasive species can occupy the same geographic area. Interaction between species depends on several factors, and the results of such interactions can be highly diverse. Asparagopsis armata is a invasive red seaweed whose exudates contain a cocktail of toxic halogenated compounds.

Loss of bmp15 function in the seasonal spawner Atlantic salmon results in ovulatory failure.

Bone morphogenetic protein 15 (BMP15) is an oocyte-specific growth factor important for successful female reproduction in mammals. While mutations in BMP15/Bmp15 cause ovulatory deficiency and/or infertility in certain mammalian species, loss of bmp15 in zebrafish, a continuous spawner and the only bmp15 knockout model in fish to date, results in complete arrest of follicle development and later female-to-male sex reversal, preventing to examine effects on ovulation/fertilization. Here, we used Atlantic salmon, a seasonal spawner, and generated bmp15 mutants to investigate ovarian development and fertility.