Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse
Monitoring programs that integrate both structural and functional ecosystem components play integral roles in ecosystem management and conservation planning. In the early 1990’s, the marine ecosystem of the waters surrounding Newfoundland and Labrador (NL) underwent a regime shift. Several demersal...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2024
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2024.1237573 https://doaj.org/article/e136bde7d8bd45fa87ba300da31bdde4 |
id |
ftdoajarticles:oai:doaj.org/article:e136bde7d8bd45fa87ba300da31bdde4 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:e136bde7d8bd45fa87ba300da31bdde4 2024-09-15T18:07:23+00:00 Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse Magnus Aune Virginie Ramasco Nadine Wells Margaret Warren Frédéric Cyr Eric J. Pedersen Mariano Koen-Alonso Elena Eriksen Raul Primicerio Ulf Lindstrøm Paul E. Renaud 2024-03-01T00:00:00Z https://doi.org/10.3389/fmars.2024.1237573 https://doaj.org/article/e136bde7d8bd45fa87ba300da31bdde4 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2024.1237573/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2024.1237573 https://doaj.org/article/e136bde7d8bd45fa87ba300da31bdde4 Frontiers in Marine Science, Vol 11 (2024) regime shift biodiversity trophic level Gadus morhua species richness functional dispersion Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2024 ftdoajarticles https://doi.org/10.3389/fmars.2024.1237573 2024-08-05T17:49:50Z Monitoring programs that integrate both structural and functional ecosystem components play integral roles in ecosystem management and conservation planning. In the early 1990’s, the marine ecosystem of the waters surrounding Newfoundland and Labrador (NL) underwent a regime shift. Several demersal and pelagic fish stocks collapsed simultaneously, and this had significant ecological and socioeconomic consequences. As this regime shift impacted numerous commercial and non-commercial species, assessments based on individual species would be insufficient. We explored a variety of metrics that capture different facets of diversity across multiple species to provide a more robust ecosystem assessment. These were species richness, evenness, community-weighted means of maximum body length and trophic level (i.e., the mean maximum body size or trophic level of the species present in a community), and functional dispersion (FDis). The objectives of this study were 1) to assess trends in community structure of the NL demersal community during the post-collapse period (1995-2018), 2) explore how the various community-level metrics differ or are redundant, and 3) investigate how these metrics are associated with important covariates. Several metrics were redundant and displayed strongly positive, temporal trends being consistent with expectations for a recovery encompassing the entire demersal community. In particular, unweighted community-weighted means of body length and trophic level displayed nearly equal temporal patterns, showing increasing trends throughout the study period which were most prominent in the northern study area and within a limited depth range at the upper shelf break. Corresponding biomass-weighted metrics were also correlated with each other but only showed similar increasing tendencies after the first decade. In contrast, species richness did not show any temporal increase. Evenness and biomass-weighted FDis showed similar temporal patterns, decreasing during the first decade followed by strong ... Article in Journal/Newspaper Gadus morhua Newfoundland Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 11 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
regime shift biodiversity trophic level Gadus morhua species richness functional dispersion Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
regime shift biodiversity trophic level Gadus morhua species richness functional dispersion Science Q General. Including nature conservation geographical distribution QH1-199.5 Magnus Aune Virginie Ramasco Nadine Wells Margaret Warren Frédéric Cyr Eric J. Pedersen Mariano Koen-Alonso Elena Eriksen Raul Primicerio Ulf Lindstrøm Paul E. Renaud Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse |
topic_facet |
regime shift biodiversity trophic level Gadus morhua species richness functional dispersion Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Monitoring programs that integrate both structural and functional ecosystem components play integral roles in ecosystem management and conservation planning. In the early 1990’s, the marine ecosystem of the waters surrounding Newfoundland and Labrador (NL) underwent a regime shift. Several demersal and pelagic fish stocks collapsed simultaneously, and this had significant ecological and socioeconomic consequences. As this regime shift impacted numerous commercial and non-commercial species, assessments based on individual species would be insufficient. We explored a variety of metrics that capture different facets of diversity across multiple species to provide a more robust ecosystem assessment. These were species richness, evenness, community-weighted means of maximum body length and trophic level (i.e., the mean maximum body size or trophic level of the species present in a community), and functional dispersion (FDis). The objectives of this study were 1) to assess trends in community structure of the NL demersal community during the post-collapse period (1995-2018), 2) explore how the various community-level metrics differ or are redundant, and 3) investigate how these metrics are associated with important covariates. Several metrics were redundant and displayed strongly positive, temporal trends being consistent with expectations for a recovery encompassing the entire demersal community. In particular, unweighted community-weighted means of body length and trophic level displayed nearly equal temporal patterns, showing increasing trends throughout the study period which were most prominent in the northern study area and within a limited depth range at the upper shelf break. Corresponding biomass-weighted metrics were also correlated with each other but only showed similar increasing tendencies after the first decade. In contrast, species richness did not show any temporal increase. Evenness and biomass-weighted FDis showed similar temporal patterns, decreasing during the first decade followed by strong ... |
format |
Article in Journal/Newspaper |
author |
Magnus Aune Virginie Ramasco Nadine Wells Margaret Warren Frédéric Cyr Eric J. Pedersen Mariano Koen-Alonso Elena Eriksen Raul Primicerio Ulf Lindstrøm Paul E. Renaud |
author_facet |
Magnus Aune Virginie Ramasco Nadine Wells Margaret Warren Frédéric Cyr Eric J. Pedersen Mariano Koen-Alonso Elena Eriksen Raul Primicerio Ulf Lindstrøm Paul E. Renaud |
author_sort |
Magnus Aune |
title |
Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse |
title_short |
Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse |
title_full |
Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse |
title_fullStr |
Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse |
title_full_unstemmed |
Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse |
title_sort |
taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse |
publisher |
Frontiers Media S.A. |
publishDate |
2024 |
url |
https://doi.org/10.3389/fmars.2024.1237573 https://doaj.org/article/e136bde7d8bd45fa87ba300da31bdde4 |
genre |
Gadus morhua Newfoundland |
genre_facet |
Gadus morhua Newfoundland |
op_source |
Frontiers in Marine Science, Vol 11 (2024) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2024.1237573/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2024.1237573 https://doaj.org/article/e136bde7d8bd45fa87ba300da31bdde4 |
op_doi |
https://doi.org/10.3389/fmars.2024.1237573 |
container_title |
Frontiers in Marine Science |
container_volume |
11 |
_version_ |
1810444760831229952 |