Inter-annual cascade effect on marine food web: A benthic pathway lagging nutrient supply to pelagic fish stock.
Currently, spatial and temporal changes in nutrients availability, marine planktonic, and fish communities are best described on a shorter than inter-annual (seasonal) scale, primarily because the simultaneous year-to-year variations in physical, chemical, and biological parameters are very complex....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2017-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5590966?pdf=render |
| _version_ | 1811276158624333824 |
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| author | Lohengrin Dias de Almeida Fernandes Eduardo Barros Fagundes Netto Ricardo Coutinho PELD-RECA |
| author_facet | Lohengrin Dias de Almeida Fernandes Eduardo Barros Fagundes Netto Ricardo Coutinho PELD-RECA |
| author_sort | Lohengrin Dias de Almeida Fernandes |
| collection | DOAJ |
| description | Currently, spatial and temporal changes in nutrients availability, marine planktonic, and fish communities are best described on a shorter than inter-annual (seasonal) scale, primarily because the simultaneous year-to-year variations in physical, chemical, and biological parameters are very complex. The limited availability of time series datasets furnishing simultaneous evaluations of temperature, nutrients, plankton, and fish have limited our ability to describe and to predict variability related to short-term process, as species-specific phenology and environmental seasonality. In the present study, we combine a computational time series analysis on a 15-year (1995-2009) weekly-sampled time series (high-resolution long-term time series, 780 weeks) with an Autoregressive Distributed Lag Model to track non-seasonal changes in 10 potentially related parameters: sea surface temperature, nutrient concentrations (NO2, NO3, NH4 and PO4), phytoplankton biomass (as in situ chlorophyll a biomass), meroplankton (barnacle and mussel larvae), and fish abundance (Mugil liza and Caranx latus). Our data demonstrate for the first time that highly intense and frequent upwelling years initiate a huge energy flux that is not fully transmitted through classical size-structured food web by bottom-up stimulus but through additional ontogenetic steps. A delayed inter-annual sequential effect from phytoplankton up to top predators as carnivorous fishes is expected if most of energy is trapped into benthic filter feeding organisms and their larval forms. These sequential events can explain major changes in ecosystem food web that were not predicted in previous short-term models. |
| first_indexed | 2024-04-12T23:51:33Z |
| format | Article |
| id | doaj.art-7f9091815d914ce59ba843cf5cce4f29 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-12T23:51:33Z |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-7f9091815d914ce59ba843cf5cce4f292022-12-22T03:11:40ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01129e018451210.1371/journal.pone.0184512Inter-annual cascade effect on marine food web: A benthic pathway lagging nutrient supply to pelagic fish stock.Lohengrin Dias de Almeida FernandesEduardo Barros Fagundes NettoRicardo CoutinhoPELD-RECACurrently, spatial and temporal changes in nutrients availability, marine planktonic, and fish communities are best described on a shorter than inter-annual (seasonal) scale, primarily because the simultaneous year-to-year variations in physical, chemical, and biological parameters are very complex. The limited availability of time series datasets furnishing simultaneous evaluations of temperature, nutrients, plankton, and fish have limited our ability to describe and to predict variability related to short-term process, as species-specific phenology and environmental seasonality. In the present study, we combine a computational time series analysis on a 15-year (1995-2009) weekly-sampled time series (high-resolution long-term time series, 780 weeks) with an Autoregressive Distributed Lag Model to track non-seasonal changes in 10 potentially related parameters: sea surface temperature, nutrient concentrations (NO2, NO3, NH4 and PO4), phytoplankton biomass (as in situ chlorophyll a biomass), meroplankton (barnacle and mussel larvae), and fish abundance (Mugil liza and Caranx latus). Our data demonstrate for the first time that highly intense and frequent upwelling years initiate a huge energy flux that is not fully transmitted through classical size-structured food web by bottom-up stimulus but through additional ontogenetic steps. A delayed inter-annual sequential effect from phytoplankton up to top predators as carnivorous fishes is expected if most of energy is trapped into benthic filter feeding organisms and their larval forms. These sequential events can explain major changes in ecosystem food web that were not predicted in previous short-term models.http://europepmc.org/articles/PMC5590966?pdf=render |
| spellingShingle | Lohengrin Dias de Almeida Fernandes Eduardo Barros Fagundes Netto Ricardo Coutinho PELD-RECA Inter-annual cascade effect on marine food web: A benthic pathway lagging nutrient supply to pelagic fish stock. PLoS ONE |
| title | Inter-annual cascade effect on marine food web: A benthic pathway lagging nutrient supply to pelagic fish stock. |
| title_full | Inter-annual cascade effect on marine food web: A benthic pathway lagging nutrient supply to pelagic fish stock. |
| title_fullStr | Inter-annual cascade effect on marine food web: A benthic pathway lagging nutrient supply to pelagic fish stock. |
| title_full_unstemmed | Inter-annual cascade effect on marine food web: A benthic pathway lagging nutrient supply to pelagic fish stock. |
| title_short | Inter-annual cascade effect on marine food web: A benthic pathway lagging nutrient supply to pelagic fish stock. |
| title_sort | inter annual cascade effect on marine food web a benthic pathway lagging nutrient supply to pelagic fish stock |
| url | http://europepmc.org/articles/PMC5590966?pdf=render |
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