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180 results for “macroalgae”
Text-fig. 3. a: Pterigophycos sp., whole-plant specimen, coll. No. 22.116, larger blades denoted B1–4 (for details, see text), scale bar = 2 cm; b: Close-up of blades B1 and B2, which resemble P. spectabilis A.MASSAL. and P. canossae A.MASSAL., respectively; c: Closeup of blade B3 resembling P. canossae; d: Close-up of blade B4 resembling P. gazolanus A.MASSAL. or Laminarites irideaephyllus A.MASSAL. Scale bars = 1 cm unless otherwise stated. in A Whole-Plant Specimen Of The Marine Macroalga Pterigophycos From The Eocene Of Bolca (Veneto, N-Italy)
Text-fig. 3. a: Pterigophycos sp., whole-plant specimen, coll. No. 22.116, larger blades denoted B1–4 (for details, see text), scale bar = 2 cm; b: Close-up of blades B1 and B2, which resemble P. spectabilis A.MASSAL. and P. canossae A.MASSAL., respectively; c: Closeup of blade B3 resembling P. canossae; d: Close-up of blade B4 resembling P. gazolanus A.MASSAL. or Laminarites irideaephyllus A.MASSAL. Scale bars = 1 cm unless otherwise stated.
Text-fig. 1. Massalongo's original specimens. a: Laminarites irideaephyllus A.MASSAL.; b: Pterigophycos gazolanus A.MASSAL.; c: Pterigophycos canossae A.MASSAL.; d: Pterigophycos spectabilis A.MASSAL. Reproduced from Massalongo (1858: pls 15–17). Scale bars = 1 cm. in A Whole-Plant Specimen Of The Marine Macroalga Pterigophycos From The Eocene Of Bolca (Veneto, N-Italy)
Text-fig. 1. Massalongo's original specimens. a: Laminarites irideaephyllus A.MASSAL.; b: Pterigophycos gazolanus A.MASSAL.; c: Pterigophycos canossae A.MASSAL.; d: Pterigophycos spectabilis A.MASSAL. Reproduced from Massalongo (1858: pls 15–17). Scale bars = 1 cm.
Text-fig. 2. Map of the Bolca area, showing all the relevant fossil sites, and map of Italy, with the Bolca area marked by a star. in A Whole-Plant Specimen Of The Marine Macroalga Pterigophycos From The Eocene Of Bolca (Veneto, N-Italy)
Text-fig. 2. Map of the Bolca area, showing all the relevant fossil sites, and map of Italy, with the Bolca area marked by a star.
Data from: Sedimentary organic carbon and nitrogen sequestration across a vertical gradient on a temperate wetland seascape including salt marshes, seagrass meadows and rhizophytic macroalgae beds
<p>Dataset </p> <p> </p> <p>Coastal wetlands are key in regulating coastal carbon and nitrogen dynamics and contribute significantly to climate change mitigation and anthropogenic nutrient reduction. We investigated organic carbon (OC) and total nitrogen (TN) stocks and burial rates at four adjacent vegetated coastal habitats across the seascape elevation gradient of Cádiz Bay (South Spain), including one species of salt marsh, two of seagrasses, and a macroalgae. OC and TN stocks in the upper 1 m sediment layer were higher at the subtidal seagrass <em>Cymodocea nodosa</em> (72.3 Mg OC ha<sup>-1</sup>, 8.6 Mg TN ha<sup>-1</sup>) followed by the upper intertidal salt marsh <em>Sporobolus maritimus</em> (66.5 Mg OC ha<sup>-1</sup>, 5.9 Mg TN ha<sup>-1</sup>), the subtidal rhizophytic macroalgae <em>Caulerpa prolifera</em> (62.2 Mg OC ha<sup>-1</sup>, 7.2 Mg TN ha<sup>-1</sup>), and the lower intertidal seagrass <em>Zostera noltei</em> (52.8 Mg OC ha<sup>-1</sup>, 5.2 Mg TN ha<sup>-1</sup>). The sedimentation rates increased from lower to higher elevation, from the intertidal salt marsh (0.24 g cm<sup>-2</sup> yr<sup>-1</sup>) to the subtidal macroalgae (0.12 g cm<sup>-2</sup> yr<sup>-1</sup>). The organic carbon burial rate was highest at the intertidal salt marsh<em> </em>(91 ± 31 g OC m<sup>-2</sup> yr<sup>-1</sup>), followed by the intertidal seagrass, (44 ± 15 g OC m<sup>-2</sup> yr<sup>-1</sup>), the subtidal seagrass (39 ± 6 g OC m<sup>-2</sup> yr<sup>-1</sup>), and the subtidal macroalgae (28 ± 4 g OC m<sup>-2</sup> yr<sup>-1</sup>). Total nitrogen burial rates were similar among the three lower vegetation types, ranging from 5 ± 2 to 3 ± 1 g TN m<sup>-2</sup> yr<sup>-1</sup>, and peaked at <em>S. maritimus </em>salt marsh with 7 ± 1 g TN m<sup>-2</sup> yr<sup>-1</sup>. The contribution of allochthonous sources to the sedimentary organic matter also decreased with elevation, from 72% in <em>C. prolifera</em> to 33% at <em>S. maritimus</em>. Our results highlight the need of using habitat-specific OC and TN stocks and burial rates to improve our ability to predict OC and TN sequestration capacity of vegetated coastal habitats at the seascape level. We also demonstrated that the stocks and burial rates in <em>C. prolifera </em>habitats were within the range of well-accepted blue carbon ecosystems such as seagrass meadows and salt marshes.</p>
Data from: A multifaceted ecological assessment reveals the invasion of the freshwater red macroalga Montagnia macrospora (Batrachospermales, Rhodophyta) in Taiwan
<p>Invasive freshwater macroalgae are rarely described. <em>Montagnia macrospora</em> is a freshwater red alga introduced from South America to East Asia via the global aquarium trade. The earliest occurrence record of this alga in Taiwan is dated 2005. To determine whether <em>M. macrospora </em>has become invasive in Taiwan and to understand the traits that facilitated its invasion, we took a multifaceted approach that combines examination of ecological background and population genetic analysis. Our island-wide survey showed that <em>M. macrospora</em> is widespread in the field across Taiwan, where the climate greatly differs from that of South America, and can self-sustain for nearly a decade. Our population genetic analysis revealed a lack of genetic diversity of <em>M. macrospora</em> in Taiwan, consistent with the hypothesis that the alga expanded through asexual reproduction. Moreover, during our long-term ecological assessments and field surveys, we observed that<em>M. macrospora</em> is an ecological generalist that can survive in a wide range of temperature, pH, illumination, and nutrient enrichment. Taken together, our data suggest that <em>M. macrospora</em> has successfully invaded the freshwater ecosystems ofTaiwan, likely due to its ability to disperse asexually and to grow under broad environmental conditions. We hope that our study brings attention to invasive freshwater algae, which have been overlooked in conservation planning and management.</p>
Figure 1 in Biodiversity of epiphytic marine macroalgae in Mexico: composition and current status
Figure 1: Numbers of algal species in each of the families that are best represented in each biogeographical ecoregion around Mexico, as defined by Spalding et al. (2007).
Negative parental and offspring environmental effects of macroalgae on coral recruitment are linked with alterations in the coral larval microbiome
<p>The persistence of reef-building corals is threatened by macroalgal competitors leading to a major demographic bottleneck in coral recruitment. Whether parental effects exist under coral-algal competition and whether they influence offspring performance via microbiome alterations represent major gaps in our understanding of the mechanisms by which macroalgae may hinder coral recovery. We investigated the diversity, variability and composition of the microbiome of adults and larvae of the coral <em>Pocillopora acuta</em> and surrounding benthic substrate on algal-removed and algal-dominated bommies. We then assessed the relative influence of parental and offspring environmental effects on coral recruitment processes by reciprocally exposing coral larvae from two parental origins (algal-removed and algal-dominated bommies) to algal-removed and algal-dominated environmental conditions. Dense macroalgal assemblages impacted the microbiome composition of coral larvae. Larvae produced by parents from algal-dominated bommies were depleted in putative beneficial bacteria and enriched in opportunistic taxa. These larvae had a significantly lower survival compared to larvae from algal-removed bommies regardless of environmental conditions. In contrast, algal-induced parental and offspring environmental effects interacted to reduce the survival of coral recruits. Together our results demonstrate negative algal-induced parental and offspring environmental effects on coral recruitment that could be mediated by alterations in the offspring microbiome.</p>
A field study of the molecular response of brown macroalgae to heavy metal exposure: an (epi)genetic approach
<p>We used next-generation sequencing to study DNA methylation changes and DNA sequence variation (SNPs) in thalli from four populations of the brown macroalgae <em>Fucus vesiculosus</em> reciprocally transplanted between two polluted and two unpolluted sites. For this, we performed reduced representation bisulfite DNA sequencing.</p>
FIG. 2. — C in Homogeneity of photosynthetic features in canopy-forming macroalgae of the order Fucales from shallow and sheltered environments
FIG. 2. — C:N, C:P, N:P ratios in tissues for each of the studied species. Names are abbreviations from those in Figure 1.
FIG. 1. — A in Homogeneity of photosynthetic features in canopy-forming macroalgae of the order Fucales from shallow and sheltered environments
FIG. 1. — A, photosynthesis/PFD curves for the tested algae, error bars refer to SE; B, lineal fitting of the Photosynthesis/PFD data for the tested algae at the lineal part of the curve. Cystoseira compressa stands for Cystoseira compressa subsp. pustulata (Ercegovic) Verlaque and Cystoseira foeniculacea for Cystoseira foeniculacea f. tenuiramosa (Ercegovic) A.Gómez Garreta, M.C.Barceló, M.A.Ribera & J.Rull Lluch.
Linked collectors and determiners for: Rutgers University, Chrysler Herbarium - Macroalgae Collection.
Natural history specimen data linked to collectors and determiners held within, "Rutgers University, Chrysler Herbarium - Macroalgae Collection". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/a958cf24-75e9-48f2-a70d-d14de797a48d">https://bionomia.net/dataset/a958cf24-75e9-48f2-a70d-d14de797a48d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/a958cf24-75e9-48f2-a70d-d14de797a48d">https://gbif.org/dataset/a958cf24-75e9-48f2-a70d-d14de797a48d</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Estado actual de las especies de macroalgas introducidas e invasoras en la costa Pacífico de México.
Natural history specimen data linked to collectors and determiners held within, "Estado actual de las especies de macroalgas introducidas e invasoras en la costa Pacífico de México". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/9df34318-5dc2-4edd-85ed-a2368e5c2cc7">https://bionomia.net/dataset/9df34318-5dc2-4edd-85ed-a2368e5c2cc7</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/9df34318-5dc2-4edd-85ed-a2368e5c2cc7">https://gbif.org/dataset/9df34318-5dc2-4edd-85ed-a2368e5c2cc7</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: ¿Existen especies de macroalgas o pastos marinos dentro del Golfo de California, que deban de estar consideradas dentro de la NOM (PROY-NOM-059-ECOL-2000)?.
Natural history specimen data linked to collectors and determiners held within, "¿Existen especies de macroalgas o pastos marinos dentro del Golfo de California, que deban de estar consideradas dentro de la NOM (PROY-NOM-059-ECOL-2000)?". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/5d6c2985-c6b0-4f4a-a703-85822e238825">https://bionomia.net/dataset/5d6c2985-c6b0-4f4a-a703-85822e238825</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/5d6c2985-c6b0-4f4a-a703-85822e238825">https://gbif.org/dataset/5d6c2985-c6b0-4f4a-a703-85822e238825</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: University of Florida Herbarium - Macroalgae.
Natural history specimen data linked to collectors and determiners held within, "University of Florida Herbarium - Macroalgae". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/f8596199-7078-4aa8-9022-ce8666fe68d0">https://bionomia.net/dataset/f8596199-7078-4aa8-9022-ce8666fe68d0</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/f8596199-7078-4aa8-9022-ce8666fe68d0">https://gbif.org/dataset/f8596199-7078-4aa8-9022-ce8666fe68d0</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Marine macroalgae species from Hispaniola.
Natural history specimen data linked to collectors and determiners held within, "Marine macroalgae species from Hispaniola". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/be02c483-3b01-4a78-93d0-9ba41c364828">https://bionomia.net/dataset/be02c483-3b01-4a78-93d0-9ba41c364828</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/be02c483-3b01-4a78-93d0-9ba41c364828">https://gbif.org/dataset/be02c483-3b01-4a78-93d0-9ba41c364828</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Herbario de la Universidad de Granada: Colección GDA-Macroalgae.
Natural history specimen data linked to collectors and determiners held within, "Herbario de la Universidad de Granada: Colección GDA-Macroalgae". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/438f6a2c-1aa1-43a9-82bc-ba56247ecd2d">https://bionomia.net/dataset/438f6a2c-1aa1-43a9-82bc-ba56247ecd2d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/438f6a2c-1aa1-43a9-82bc-ba56247ecd2d">https://gbif.org/dataset/438f6a2c-1aa1-43a9-82bc-ba56247ecd2d</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: NEON Biorepository Aquatic Plant, Bryophyte, Lichen and Macroalgae Collection (Herbarium Vouchers [Standard Sampling]).
Natural history specimen data linked to collectors and determiners held within, "NEON Biorepository Aquatic Plant, Bryophyte, Lichen and Macroalgae Collection (Herbarium Vouchers [Standard Sampling])". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/dd1b2dbc-1a38-4212-a3d9-893a160da252">https://bionomia.net/dataset/dd1b2dbc-1a38-4212-a3d9-893a160da252</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/dd1b2dbc-1a38-4212-a3d9-893a160da252">https://gbif.org/dataset/dd1b2dbc-1a38-4212-a3d9-893a160da252</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: NEON Biorepository Aquatic Plant, Bryophyte, Lichen, and Macroalgae Collection (Herbarium Vouchers [Clip Harvests]).
Natural history specimen data linked to collectors and determiners held within, "NEON Biorepository Aquatic Plant, Bryophyte, Lichen, and Macroalgae Collection (Herbarium Vouchers [Clip Harvests])". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/1c99ecf5-672b-4af9-a532-8b28af9999bc">https://bionomia.net/dataset/1c99ecf5-672b-4af9-a532-8b28af9999bc</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/1c99ecf5-672b-4af9-a532-8b28af9999bc">https://gbif.org/dataset/1c99ecf5-672b-4af9-a532-8b28af9999bc</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: NEON Biorepository Aquatic Plant, Bryophyte, Lichen, and Macroalgae Collection (Herbarium Vouchers [Point Counts]).
Natural history specimen data linked to collectors and determiners held within, "NEON Biorepository Aquatic Plant, Bryophyte, Lichen, and Macroalgae Collection (Herbarium Vouchers [Point Counts])". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/3f5df259-243c-4c32-9520-921c89fe689f">https://bionomia.net/dataset/3f5df259-243c-4c32-9520-921c89fe689f</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/3f5df259-243c-4c32-9520-921c89fe689f">https://gbif.org/dataset/3f5df259-243c-4c32-9520-921c89fe689f</a>. Formatted as a Frictionless Data package.
Dataset -Growth of the Macroalgae Ulva lactuca Cultivated at Different Depths in a Biofloc Integrated System with Shrimp and Fish
<p>Dataset with experimental results.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.