Rhodolith Beds in a Shifting World: A Palaeontological Perspective DOI Creative Commons
Julio Aguirre, Juan C. Braga

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2024, Volume and Issue: 34(11)

Published: Nov. 1, 2024

ABSTRACT The occurrence of rhodolith beds in the stratigraphic record from Cretaceous to Pleistocene was analysed published papers. Most data refer low–mid latitude records described Tethyan–Paratethyan–Mediterranean domain. first putative are Albian (uppermost Lower Cretaceous) deposits. These made up mostly unattached loose branching corallines as well nodular structures. From Coniacian (Upper Langhian (Middle Miocene), abundance shows a generally increasing fluctuating trend with two significant expansions Priabonian (late Eocene) and during Aquitanian–Langhian (Early‐Middle Miocene). After maximum, sharply declined minimum Zanclean (Early Pliocene). During Pleistocene, they recovered values similar those reached Langhian. general increase maximum correlates global temperature p CO 2 declines an ocean pH increase. tectonic activity leading important palaeogeographic changes Tethyan–Parathetyan–Mediterranean realm might account for Serravallian–Zanclean downfall rhodolith‐dominated Cretaceous–Pleistocene that these ecosystems withstood successfully highly changing world. rapid acclimation particular taxa environmental variable reaction distributed at different water depths can be crucial understand their success. In this regard, it would interesting analyse how modern deep respond oceanic conditions.

Language: Английский

Recommendations for strengthening blue carbon science DOI Creative Commons
Martin Dahl, Paul S. Lavery, Inés Mazarrasa

et al.

One Earth, Journal Year: 2025, Volume and Issue: unknown, P. 101175 - 101175

Published: Feb. 1, 2025

Language: Английский

Citations

2
Marine Forests Forever—A Necessary Multilateral Program for a Fair Future DOI
Paulo Antunes Horta, Marina Nasri Sissini, Alessandra Fonseca

et al.

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2025, Volume and Issue: 35(1)

Published: Jan. 1, 2025

Language: Английский

Citations

1
Maerl Bed Conservation: Successes and Failures DOI Creative Commons
Jacques Grall, Jason M. Hall‐Spencer

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2025, Volume and Issue: 35(2)

Published: Feb. 1, 2025

ABSTRACT Most ecoregions lack data on maerl distribution and ecological status, so this needs fundamental research for conservation. Brittany, NW France, is an exception has extensive species, associated biodiversity, human‐induced impacts protection efforts. Breton habitats host exceptionally high species richness functional diversity, surpassing all other coastal in the region. The meiofauna microflora of beds role these as carbon stores remain poorly known. Bans direct exploitation Europe have led to environmental improvements, although extraction begun regions world. In Europe, serious conservation problems persist, particularly due scallop clam dredging, eutrophication mariculture impacts. Not enough been done curb issues, which are proven severely degrade maerl, its biodiversity ecosystem functions. Conservation measures should be strengthened codesigned with local stakeholders take millennia form inadequately protected by current strategies.

Language: Английский

Citations

0
Baseline Assessment for Monitoring Rhodolith Beds Close to the Harbour of Porto Central at the Espirito Santo State, Southeastern Brazil. DOI
Alexandre B. Villas-Boas, Frederico Tapajós de Souza Tâmega, Marcia Abreu de Oliveira Figueiredo

et al.

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2025, Volume and Issue: 35(4)

Published: April 1, 2025

ABSTRACT The rhodolith beds along the Brazilian continental shelf play a vital role in biota conservation and cover significant area of inner margin. Because their mobility susceptibility to disturbances, it is crucial map monitor these habitats distinguish changes caused by natural human‐induced factors. Few studies have described mobility, there lack monitoring data accurately assess variations over time. This study performed preliminary evaluation structure health exposed environmental disturbances. required for licensing Porto Central Espirito Santo State, Brazil, before beginning dredging operations. focuses on morphology rhodoliths evaluates percentage cover, sediment burial levels, vitality and/or across two sampling sites shallow deep waters. site showed higher greater stability despite containing smaller with more spherical shapes. Seasonal inconsistent patterns sites. Dynamic variation sediments was observed, but were no differences between seasons. Most at deeper exhibited healthy pigmentation; only small high or extreme bleaching stress. seasonal suggests storm influence all year round. programme will act as warning method detect potential side effects activities; furthermore, contributes database that may aid other helping conservation.

Language: Английский

Citations

0
Cryptofaunal Diversity in a Southwestern Atlantic Rhodolith Bed—Morphology Effect Versus Depth DOI

André Macedo,

Gabrielle Koerich, Carlos Eduardo Peixoto Dias

et al.

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2025, Volume and Issue: 35(5)

Published: May 1, 2025

ABSTRACT Rhodolith beds are ecologically important benthic habitats formed by coralline red algae, found across a wide range of latitudes and depths. They provide crucial ecosystem services, including climate change mitigation biodiversity support, yet remain understudied. Rhodoliths known to influence the diversity abundance associated cryptofauna through their structural complexity microhabitat provision. In this study, we examined cryptofaunal community with two rhodolith‐forming species, Lithophyllum atlanticum Melyvonnea erubescens , distinct growth forms, in rhodolith bed located at no‐take area Southwestern Atlantic. We evaluated effects complexity, depth seasons on composition. Our findings revealed significant differences composition between species different Structural characteristics, such as volume branch density, varied influenced fauna. Depth season seem indirectly impact distribution, well density appears be most relevant driver influencing assemblage differences. reinforce ecological importance highlight need for further research better understand conservation significance. Protecting sensitive from potential impacts is preserving services. Therefore, any discussion or management changes that its status must consider aspects biology relationships fauna flora.

Language: Английский

Citations

0
Rhodolith beds in the Eastern Tropical Pacific: Habitat structure and associated biodiversity DOI

Celeste A. Diaz-Licona,

Nadine Schubert,

Vladimir González-Gamboa

et al.

Aquatic Botany, Journal Year: 2025, Volume and Issue: unknown, P. 103914 - 103914

Published: June 1, 2025

Language: Английский

Citations

0
Different rhodolith assemblages host distinct associated species but similar ecological groups: a case study in NW Mediterranean Sea. DOI
Carlo Nike Bianchi, Carla Morri

Aquatic Botany, Journal Year: 2024, Volume and Issue: 196, P. 103826 - 103826

Published: Oct. 10, 2024

Language: Английский

Citations

3
Unfoldings of Environmental Racism: Are They Reaching Rhodolith Beds and Related Sociobiodiversities? DOI
Paulo Antunes Horta, Gabrielle Koerich, Marina Nasri Sissini

et al.

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2024, Volume and Issue: 34(12)

Published: Dec. 1, 2024

ABSTRACT Environmental racism may be among the explanations for why we are facing worst socioenvironmental crisis in history of humanity, led by a state climate emergency that could result an ecocidal genocide planetary dimensions. Unfoldings environmental even reach towards nature when it is considered subject rights. Among marine ecosystems less these discussions rhodolith beds—reef habitats red coralline algae, also called maerl beds. When dealing with feasibility oil exploration Amazon mouth region, area dominated extensive beds, Brazilian Association Petroleum Geologists broadcast live geologist quoted as saying (transcript follows) ‘… what there (at Amazon) algae rhodoliths, which common, anywhere Brazil, and things, errrrr (with hand gestures facial expression negative or pejorative sense), ugly like that, they're not nice at all, (…) reefs dead reefs, dead’. As result, now, region real possibility exploitation. This opinion limited aesthetical perspective important demands urgent public recognition. Policies foster bed conservation needs, explaining their wealth valuable contributions to society, must introduced formal education, dialoguing children, young people adults. Multilateral United Nation forums, during Ocean Decade, can provide ways speed up this process, combating different forms speciesism, buying some time creating opportunities establish natural world heritage.

Language: Английский

Citations

1
Rhodolith Beds in a Shifting World: A Palaeontological Perspective DOI Creative Commons
Julio Aguirre, Juan C. Braga

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2024, Volume and Issue: 34(11)

Published: Nov. 1, 2024

ABSTRACT The occurrence of rhodolith beds in the stratigraphic record from Cretaceous to Pleistocene was analysed published papers. Most data refer low–mid latitude records described Tethyan–Paratethyan–Mediterranean domain. first putative are Albian (uppermost Lower Cretaceous) deposits. These made up mostly unattached loose branching corallines as well nodular structures. From Coniacian (Upper Langhian (Middle Miocene), abundance shows a generally increasing fluctuating trend with two significant expansions Priabonian (late Eocene) and during Aquitanian–Langhian (Early‐Middle Miocene). After maximum, sharply declined minimum Zanclean (Early Pliocene). During Pleistocene, they recovered values similar those reached Langhian. general increase maximum correlates global temperature p CO 2 declines an ocean pH increase. tectonic activity leading important palaeogeographic changes Tethyan–Parathetyan–Mediterranean realm might account for Serravallian–Zanclean downfall rhodolith‐dominated Cretaceous–Pleistocene that these ecosystems withstood successfully highly changing world. rapid acclimation particular taxa environmental variable reaction distributed at different water depths can be crucial understand their success. In this regard, it would interesting analyse how modern deep respond oceanic conditions.

Language: Английский

Citations

0