A <i>Halophila baillonis</i> Ascherson bed on the semiarid coast of Brazil

Barros, Kcrishna Vilanova de Souza; Costa, Francimeire do Nascimento; Rocha‐Barreira, Cristina de Almeida

doi:10.1002/fedr.201400033

Cited by 10 publications

(5 citation statements)

References 9 publications

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“…In contrast, H. decipiens has been correctly reported for the Caribbean of Costa Rica, with many herbarium samples, and it is currently present at Isla Uvita. Nonetheless, H. baillonis has recently been reported in the Caribbean Sea at Belize (Short, Fernandez, Vernon, & Gaeckle, 2006), Honduras (Caviedes-Sánchez & Carrasco, 2016), and in the Atlantic coast of Brazil (Barros, Costa, & Rocha-Barreira, 2014;Magalhães, Borges, & Pitanga, 2015); thus, the record by Dawson (1962) may have been correct, and it is also possible that this inconspicuous species may still be found along the Caribbean coasts of Costa Rica.…”

Section: Discussionmentioning

confidence: 96%

Seagrasses of Costa Rica: from the mighty Caribbean to the dynamic meadows of the Eastern Tropical Pacific

Samper‐Villarreal

Tussenbroek

Cortés

2018

RBT

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Seagrass meadows are declining worldwide, mostly attributed to anthropogenic disturbances. Understanding the dynamics of these meadows is urgent in order to establish adequate management and conservation strategies. Here, we analyzed the current knowledge on the seagrass meadows in the Caribbean and Pacific coasts of Costa Rica, Central America. Current knowledge was based on literature searches, herbarium collections, informal interviews, and personal observations. We report a total of five genera and seven species for Costa Rica: Thalassia testudinum, Syringodium filiforme, Halophila decipiens, Halophila baillonis, Halodule wrightii, Halodule beaudettei, and Ruppia maritima. Six species are reported for the Caribbean, and four species for the Pacific. Thalassia testudinum, S. filiforme, and H. decipiens have only been reported for the Caribbean. Halodule beaudettei has only been reported for the Pacific coast. Halophila baillonis, H. wrightii and R. maritima have been reported for both coasts. Seagrasses were found at a total of 31 locations in Costa Rica, most from the Pacific coast; 16 of which are reported here for the first time. Seagrass meadows from both coasts are vastly different. Along the Caribbean coast, meadows are often dominated by the robust T. testudinum, they are extensive and stable, persisting for decades. In contrast, the meadows along the Pacific coast are more dynamic and are dominated by pioneer and smaller ephemeral species, such as H. baillonis and H. beaudettei. The number of studies on Costa Rican seagrasses is scarce but has been increasing over time, and mostly concern taxonomic reports and basic descriptions of the dynamics of T. testudinum meadows from the Caribbean. Research, conservation and management efforts on Costa Rican seagrass meadows would benefit from continued monitoring and research on associated fauna and flora, incorporating ecosystem resilience and services.

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Section: Discussionmentioning

confidence: 96%

Seagrasses of Costa Rica: from the mighty Caribbean to the dynamic meadows of the Eastern Tropical Pacific

Samper‐Villarreal

Tussenbroek

Cortés

2018

RBT

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“…It is possible that in a near future, the expansion of studies in areas by the north coast of Brazil record new occurrences of this species, as recently observed for Halophila baillonis (Barros et al. ), especially if confirmed the record of N. P. Silva & T. G. P. Lima in February 2016 (Macapá Beach, Piauí State (360 km north of Pacoti River). Despite the need for more comprehensive studies on the biology of the species, this record is encouraging with regard to its conservation.…”

Section: Discussionmentioning

confidence: 99%

“…The occurrence of seagrass meadows in the shallowest part of the river, parallel to the margins, seems common in estuarine areas (Barros et al. , Magalhães and Barros submit. ), and may be related to limited light penetration, caused by the typical siltation in estuaries.…”

Section: Discussionmentioning

confidence: 99%

Northern range extension of the seagrass Halodule emarginata Hartog

et al. 2016

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The seagrass Halodule emarginata is an endemic tropical species of Brazil, previously found from São Paulo to Bahia. The present study gives more ecological information of this species and report the extension of its northern range where it occurs in an estuarine area of Aquiraz‐Ceará, semiarid coast of Brazil. In November 2014, the meadow was discovered, georeferenced and mapped. Five cores were collected for morphometrical analyses of H. emarginata and associated florofaunistic species. Two beds of H. emarginata with areas of 177.8 m2 and 5012.3 m2 were identified in the estuary of the Pacoti River, indicating an extension of its known range by 1500 km to the north. Despite the emarginate apex, morphological patterns revealed that specimens were slightly less developed than previously described in the literature, probably due to estuarine stress. However, algal biodiversity (seven species) in the studied meadows was within the range observed for other estuarine meadows in Brazil, with presence of Rhodophyta and Chlorophyta. The main groups of invertebrate megafauna were present, including 13 taxa mainly of Mollusca, Crustacea and Polychaeta. This meadow will be monitored in order to understand its dynamics and relationships with other florofaunistic species and its responses to environmental variations.

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“…In this context, we present a characterization of three actionable BCEs (mangroves, salt marshes, and seagrass meadows) in Brazil (Figure 2). and Souza-Filho, 2009;11 Rodrigues and Souza-Filho 2011;12 Flynn et al, 1998;,13 Creed, 2003;14 Barros et al, 2014 ;15 Copertino et al, 2016;16 Howard et al, 2017a;17 Shaefer et al, 2018;18 Gorman et al, 2020a;19 Choi 2011, 20 Gama 2015; 21 Silva 2017; 22 Horta, 2000;23 Jorge et al, 2012;24 Figueiredo et al, 2008;25 Lanari et al, 2022;26 Anderson et al, 2021;27 Carvalho et al, 2020;28…”

Section: Blue Carbon Ecosystems In Brazilmentioning

confidence: 99%

Blue Carbon Ecosystems in Brazil: Overview and an Urgent Call for Conservation and Restoration

et al. 2022

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In this article, we discuss knowledge and gaps regarding blue carbon ecosystems (BCEs) in Brazil, considering the urgency to apply protection actions and policies to safeguard their biodiversity and associated ecosystem services. We also indicate areas of further research to improve carbon stocks and sequestration rate estimates. We call attention to the shortage of studies on Brazilian BCEs relative to the growing knowledge on the Blue Carbon Framework accumulated worldwide over the last decade. Considering the extensive Brazilian Economic Exclusive Zone (known as “Blue Amazon”), knowledge concerning blue carbon stocks is vital at regional and global scales for mitigating global increases in atmospheric carbon dioxide (CO2). The Blue Amazon has at least 1,100,000 ha of vegetated and non-vegetated coastal ecosystems (mangroves, salt marshes, seagrass meadows, and hypersaline tidal flats) that collectively contain vast amounts of stored carbon, making Brazil an ideal place to test mechanisms for evaluating, conserving, and restoring BCEs. Other poorly understood potential sinks and sources of carbon are macroalgal and rhodolith beds, mudflats, continental shelf sediments, and marine animal forests in shallow, mesophotic, and deep waters. The carbon fluxes between diverse environmental compartments, such as soil–air, soil–water, groundwater–water–surface water, air–water, and land–ocean, in BCEs across the Blue Amazon must be studied. We emphasize the importance of assessing the total carbon stock and the recent dismantling of environmental laws that pose great risks to these important BCEs. The conservation and recovery of these areas would enhance the carbon sequestration capacity of the entire country. Furthermore, we highlight priorities to improve knowledge concerning BCEs and their biogeochemical cycles in the Blue Amazon and to provide information to assist in the reduction of atmospheric levels of CO2 for the United Nations Decade of Ocean Science (2021–2030).

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A Halophila baillonis Ascherson bed on the semiarid coast of Brazil

Cited by 10 publications

References 9 publications

Seagrasses of Costa Rica: from the mighty Caribbean to the dynamic meadows of the Eastern Tropical Pacific

Seagrasses of Costa Rica: from the mighty Caribbean to the dynamic meadows of the Eastern Tropical Pacific

Northern range extension of the seagrass Halodule emarginata Hartog

Blue Carbon Ecosystems in Brazil: Overview and an Urgent Call for Conservation and Restoration

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