Zooplanktonic biomass and secondary production in Berlengas Biosphere Reserve (UNESCO) - Portugal
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1
GIRM - Marine Resources Research Group, School of Tourism and Maritime Technology, Polytechnic Institute of Leiria, Portugal
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2
University of Aveiro, Biology Department, Portugal
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3
CESAM and Biology Department, University of Aveiro, Portugal
The present study measured the biomass and secondary production of zooplanktonic populations of Berlengas Biosphere Reserve of UNESCO (BBR), a Marine Protected Area (MPA) located on the west coast of Portugal.
Sampling campaigns were performed between June 2010 and August 2012. Samples were collected on a Bongo net with 200µm and 500µm meshes at 7 stations around Berlengas’ Archipelago. From the 15 sampling moments, 11 occurred in upwelling-favourable conditions.
The data obtained on this study revealed that copepoda were 62% of zooplanktonic biomass in samples from 500µm mesh and 23% in samples from 200µm mesh. Higher values of copepod mean biomass (carbon content - mgC.m-3) were found during spring and summer months. Secondary production rates were also higher during spring and summer months with maximum mean values on August 2012 (0,053 ± 0,126 mgC.m-3d-1).
Higher levels of phytoplankton biomass (chlorophyll a) and secondary production rates occurred during spring and summer, when upwelling-favourable conditions were observed.
Keywords:
Berlengas Biosphere Reserve,
Secondary Production,
Copepoda Biomass,
upwelling,
chlorophyll a
Conference:
IMMR | International Meeting on Marine Research 2014, Peniche, Portugal, 10 Jul - 11 Jul, 2014.
Presentation Type:
Poster Presentation
Topic:
BIODIVERSITY, CONSERVATION AND COASTAL MANAGEMENT
Citation:
Rato
LD,
Maranhão
P,
Avelelas
FP,
Velez
C,
Marques
DF,
Queiroga
H and
Leandro
SM
(2014). Zooplanktonic biomass and secondary production in Berlengas Biosphere Reserve (UNESCO) - Portugal.
Front. Mar. Sci.
Conference Abstract:
IMMR | International Meeting on Marine Research 2014.
doi: 10.3389/conf.fmars.2014.02.00104
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Received:
10 May 2014;
Published Online:
18 Jul 2014.
*
Correspondence:
Miss. Lénia D Rato, GIRM - Marine Resources Research Group, School of Tourism and Maritime Technology, Polytechnic Institute of Leiria, Peniche, Portugal, lenia.rato@gmail.com