Patterns of distribution and drivers of change in shallow seagrass and algal assemblages of a non-estuarine Southern Caribbean mangrove lagoon

A.O. Debrot, A. Hylkema, W. Vogelaar, W.F. Prud'homme van Reine, M.S. Engel, J.A. van Hateren, E.H. Meesters

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Shallow marine macrophyte communities serve key roles in the tropical coastal ecosystem but are undergoing large and rapid deterioration worldwide, as is also the case in the non-estuarine mangrove lagoon of Lac Bay, Bonaire, in the Southern Caribbean. To help better understand both the drivers of assemblage structure and potential consequences of the changes taking place in the bay, we here quantify and describe the distribution of algal and seagrass assemblages along the environmental gradient from the turbid, inner mangrove pools to the clear, open bay conditions, based on 98 randomly-chosen, 4 m2 survey plots. Seven assemblages were described along this land-to-sea gradient, five of which were dominated by marine macrophytes, one by sponges and one by a polychaete. With exception of the hypersaline backwaters which were devoid of benthic macrophyte vegetation, isolated mangrove pools showed the lowest total benthic cover, species richness and biodiversity of all habitats. Salinity and substrate particle-size composition accounted for most variation between the different assemblages and appear to be the key known determinants of assemblage composition. We developed a conceptual model to help disentangle the relationship between and the relative roles of the two principal drivers, as part of a cascade of effects which ultimately result from terrestrial run-off into the bay as mediated by mangrove encroachment into the bay. The model links spatial patterns to ongoing processes and implies that the assemblage patterns described are not only a reflection of, but also allow prediction of how the assemblages develop through time.

Original languageEnglish
Article number103148
JournalAquatic Botany
Volume159
DOIs
Publication statusPublished - 1 Dec 2019

Fingerprint

seagrass
mangrove
lagoon
benthic plants
Netherlands Antilles
macrophytes
Polychaeta
particle size
macrophyte
deterioration
biodiversity
salinity
species diversity
prediction
ecosystems
habitats
backwater
environmental gradient
polychaete
sponge

Keywords

  • Drivers of assemblage structure
  • Mangrove land reclamation
  • Non-estuarine mangrove system model
  • Tropical seagrass

Cite this

@article{c2ac26a2e0bf47c680c5621fa7e442c4,
title = "Patterns of distribution and drivers of change in shallow seagrass and algal assemblages of a non-estuarine Southern Caribbean mangrove lagoon",
abstract = "Shallow marine macrophyte communities serve key roles in the tropical coastal ecosystem but are undergoing large and rapid deterioration worldwide, as is also the case in the non-estuarine mangrove lagoon of Lac Bay, Bonaire, in the Southern Caribbean. To help better understand both the drivers of assemblage structure and potential consequences of the changes taking place in the bay, we here quantify and describe the distribution of algal and seagrass assemblages along the environmental gradient from the turbid, inner mangrove pools to the clear, open bay conditions, based on 98 randomly-chosen, 4 m2 survey plots. Seven assemblages were described along this land-to-sea gradient, five of which were dominated by marine macrophytes, one by sponges and one by a polychaete. With exception of the hypersaline backwaters which were devoid of benthic macrophyte vegetation, isolated mangrove pools showed the lowest total benthic cover, species richness and biodiversity of all habitats. Salinity and substrate particle-size composition accounted for most variation between the different assemblages and appear to be the key known determinants of assemblage composition. We developed a conceptual model to help disentangle the relationship between and the relative roles of the two principal drivers, as part of a cascade of effects which ultimately result from terrestrial run-off into the bay as mediated by mangrove encroachment into the bay. The model links spatial patterns to ongoing processes and implies that the assemblage patterns described are not only a reflection of, but also allow prediction of how the assemblages develop through time.",
keywords = "Drivers of assemblage structure, Mangrove land reclamation, Non-estuarine mangrove system model, Tropical seagrass",
author = "A.O. Debrot and A. Hylkema and W. Vogelaar and {Prud'homme van Reine}, W.F. and M.S. Engel and {van Hateren}, J.A. and E.H. Meesters",
year = "2019",
month = "12",
day = "1",
doi = "10.1016/j.aquabot.2019.103148",
language = "English",
volume = "159",
journal = "Aquatic Botany",
issn = "0304-3770",
publisher = "Elsevier",

}

Patterns of distribution and drivers of change in shallow seagrass and algal assemblages of a non-estuarine Southern Caribbean mangrove lagoon. / Debrot, A.O.; Hylkema, A.; Vogelaar, W.; Prud'homme van Reine, W.F.; Engel, M.S.; van Hateren, J.A.; Meesters, E.H.

In: Aquatic Botany, Vol. 159, 103148, 01.12.2019.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Patterns of distribution and drivers of change in shallow seagrass and algal assemblages of a non-estuarine Southern Caribbean mangrove lagoon

AU - Debrot, A.O.

AU - Hylkema, A.

AU - Vogelaar, W.

AU - Prud'homme van Reine, W.F.

AU - Engel, M.S.

AU - van Hateren, J.A.

AU - Meesters, E.H.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Shallow marine macrophyte communities serve key roles in the tropical coastal ecosystem but are undergoing large and rapid deterioration worldwide, as is also the case in the non-estuarine mangrove lagoon of Lac Bay, Bonaire, in the Southern Caribbean. To help better understand both the drivers of assemblage structure and potential consequences of the changes taking place in the bay, we here quantify and describe the distribution of algal and seagrass assemblages along the environmental gradient from the turbid, inner mangrove pools to the clear, open bay conditions, based on 98 randomly-chosen, 4 m2 survey plots. Seven assemblages were described along this land-to-sea gradient, five of which were dominated by marine macrophytes, one by sponges and one by a polychaete. With exception of the hypersaline backwaters which were devoid of benthic macrophyte vegetation, isolated mangrove pools showed the lowest total benthic cover, species richness and biodiversity of all habitats. Salinity and substrate particle-size composition accounted for most variation between the different assemblages and appear to be the key known determinants of assemblage composition. We developed a conceptual model to help disentangle the relationship between and the relative roles of the two principal drivers, as part of a cascade of effects which ultimately result from terrestrial run-off into the bay as mediated by mangrove encroachment into the bay. The model links spatial patterns to ongoing processes and implies that the assemblage patterns described are not only a reflection of, but also allow prediction of how the assemblages develop through time.

AB - Shallow marine macrophyte communities serve key roles in the tropical coastal ecosystem but are undergoing large and rapid deterioration worldwide, as is also the case in the non-estuarine mangrove lagoon of Lac Bay, Bonaire, in the Southern Caribbean. To help better understand both the drivers of assemblage structure and potential consequences of the changes taking place in the bay, we here quantify and describe the distribution of algal and seagrass assemblages along the environmental gradient from the turbid, inner mangrove pools to the clear, open bay conditions, based on 98 randomly-chosen, 4 m2 survey plots. Seven assemblages were described along this land-to-sea gradient, five of which were dominated by marine macrophytes, one by sponges and one by a polychaete. With exception of the hypersaline backwaters which were devoid of benthic macrophyte vegetation, isolated mangrove pools showed the lowest total benthic cover, species richness and biodiversity of all habitats. Salinity and substrate particle-size composition accounted for most variation between the different assemblages and appear to be the key known determinants of assemblage composition. We developed a conceptual model to help disentangle the relationship between and the relative roles of the two principal drivers, as part of a cascade of effects which ultimately result from terrestrial run-off into the bay as mediated by mangrove encroachment into the bay. The model links spatial patterns to ongoing processes and implies that the assemblage patterns described are not only a reflection of, but also allow prediction of how the assemblages develop through time.

KW - Drivers of assemblage structure

KW - Mangrove land reclamation

KW - Non-estuarine mangrove system model

KW - Tropical seagrass

U2 - 10.1016/j.aquabot.2019.103148

DO - 10.1016/j.aquabot.2019.103148

M3 - Article

VL - 159

JO - Aquatic Botany

JF - Aquatic Botany

SN - 0304-3770

M1 - 103148

ER -