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Authors Loria-Naranjo, M; Samper-Villarreal, J; Sandoval-Siles, M; Cortes, J
Author Full Name Loria-Naranjo, Margarita; Samper-Villarreal, Jimena; Sandoval-Siles, Marylaura; Cortes, Jorge
Title Intra- and inter-annual variation in a seagrass meadow on the Caribbean coast of Costa Rica: 2009-2015
Source REVISTA DE BIOLOGIA TROPICAL
Language English
Document Type Article
Author Keywords Thalassia testudinum; Syringodium filiforme; Cahuita National Park; CARICOMP; seagrass bed; biomass; productivity; leaf area; LAI
Keywords Plus BOCAS DEL TORO; THALASSIA-TESTUDINUM; CARICOMP SITE; CORAL-REEF; CAHUITA; PRODUCTIVITY; MANGROVE; BIOMASS; LAGOON; BAY
Abstract Seagrass beds are an important ecosystem on the Caribbean coast of Costa Rica. At Cahuita National Park (CNP) a seagrass bed at Perezoso has been monitored continually since 1999 within the CARICOMP pro- gram. Thalassia testudinum is the dominant seagrass species, in some cases mixed with Syringodiwn filiforme. The results from the 2009 to 2015 monitoring period are presented here, and contrasted with data before 2009. Total (above and below ground tissue) mean biomass of T. testudinum was higher (1255.4 +/- 146.0 gm(-2)) than biomass before 2009, with an increasing tendency. However, productivity (1.5 +/- 0.59 gm(-2)d(-1)) and turnover rate (4.3 +/- 1.2 %d(-1))were lower than previous monitoring periods. In this period, mean leaf area diminished considerably (4.9 +/- 2.30 m(2)), but leaf area index (LAI) increased (1.9 +/- 0.80 m(2)leafm(-2)) in comparison to prior monitoring. Productivity, density, turnover rate, LAI and biomass showed intra-annual variations; while mean biomass of T. testudinum did not vary significantly among years. No correlations were found between water salinity, temperature and clarity with seagrass measurements. However, most seagrass parameters were strongly correlated with precipitation. These results highlight the effect of external environmental agents acting on the ecosystem. CNP presents a long-term stable seagrass meadow. However, there are indirect signals, such as high biomass and above-ground biomass proportion, along with low productivity and LAI, which point to a nutrient increment in Perezoso's seagrass bed. To continue protecting this seagrass bed, it is necessary to improve monitoring methods, and seagrass beds should be included in national conservation policies and monitoring programs.
Author Address [Loria-Naranjo, Margarita; Samper-Villarreal, Jimena; Sandoval-Siles, Marylaura; Cortes, Jorge] Univ Costa Rica, Ctr Invest Ciencias Mar & Limnol CIMAR, San Jose 115012060, Costa Rica; [Sandoval-Siles, Marylaura; Cortes, Jorge] Univ Costa Rica, Escuela Biol, San Jose, Costa Rica
Reprint Address Loria-Naranjo, M (corresponding author), Univ Costa Rica, Ctr Invest Ciencias Mar & Limnol CIMAR, San Jose 115012060, Costa Rica.
E-mail Address maggie.loria@gmail.com; jimena.sampervillarreal@ucr.ac.cr; mary.sandoval20@gmail.com; jorge.cortes@ucr.ac.cr
ResearcherID Number Cortes, Jorge/AAC-9782-2020
ORCID Number Cortes, Jorge/0000-0001-7004-8649; Loria-Naranjo, Margarita/0000-0003-4396-7388
Funding Agency and Grant Number Vicerrectoria de Investigacion of the University of Costa Rica [808-96-298]
Funding Text We want to thank Jaime Nivia, Allan Carrillo, Marco Corrales, Michael Fonseca, Viktoria Bogantes, Davis Morera, Oscar Montoya and Cinthya Perez for field and laboratory support. Jeffrey A. Sibaja-Cordero and Marcelo Araya for statistical advice. We thank the personnel of Parque Nacional Cahuita and Area de Conservacion La Amistad-Caribe. This project was funded by the Vicerrectoria de Investigacion of the University of Costa Rica (Project 808-96-298).
Times Cited 2
Total Times Cited Count (WoS, BCI, and CSCD) 2
Publisher REVISTA DE BIOLOGIA TROPICAL
Publisher City SAN JOSE
Publisher Address UNIVERSIDAD DE COSTA RICA CIUDAD UNIVERSITARIA, SAN JOSE, 00000, COSTA RICA
ISSN 0034-7744
29-Character Source Abbreviation REV BIOL TROP
ISO Source Abbreviation Rev. Biol. Trop.
Publication Date SEP
Year Published 2018
Volume 66
Issue 3
Beginning Page 1149
Ending Page 1161
Digital Object Identifier (DOI) 10.15517/rbt.v66i3.31035
Page Count 13
Web of Science Category Biology
Subject Category Life Sciences & Biomedicine - Other Topics
Document Delivery Number HC8IM
Unique Article Identifier WOS:000452046100016
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