A trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea
Summary Variation within species is an often‐overlooked aspect of community ecology, despite the fact that the ontogenetic structure of populations influences processes right up to the ecosystem level. Accounting for traits at the individual level is an important advance in the implementation of tra...
Published in: | Journal of Animal Ecology |
---|---|
Main Authors: | , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2016
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/1365-2656.12471 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2656.12471 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12471 |
id |
crwiley:10.1111/1365-2656.12471 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/1365-2656.12471 2024-06-02T08:11:58+00:00 A trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea Mindel, Beth L. Webb, Thomas J. Neat, Francis C. Blanchard, Julia L. Gaillard, Jean‐Michel Natural Environment Research Council 2016 http://dx.doi.org/10.1111/1365-2656.12471 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2656.12471 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12471 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Animal Ecology volume 85, issue 2, page 427-436 ISSN 0021-8790 1365-2656 journal-article 2016 crwiley https://doi.org/10.1111/1365-2656.12471 2024-05-03T10:47:11Z Summary Variation within species is an often‐overlooked aspect of community ecology, despite the fact that the ontogenetic structure of populations influences processes right up to the ecosystem level. Accounting for traits at the individual level is an important advance in the implementation of trait‐based approaches in understanding community structure and function. We incorporate individual‐ and species‐level traits into one succinct assemblage structure metric, fractional size, which is calculated as the length of an individual divided by its potential maximum length. We test the implementation of fractional size in demersal fish assemblages along a depth gradient in the deep sea. We use data from an extensive trawl survey at depths of 300–2030 m on the continental slope of the Rockall Trough, Northeast Atlantic, to compare changes in fractional size structure along an environmental gradient to those seen using traditional taxonomic and trait‐based approaches. The relationship between fractional size and depth was particularly strong, with the overall pattern being an increase with depth, implying that individuals move deeper as they grow. Body size increased with depth at the intraspecific and assemblage levels. Fractional size, size structure and species composition all varied among assemblages, and this variation could be explained by the depth that the assemblage occupied. The inclusion of individual‐level traits and population fractional size structure adds to our understanding at the assemblage level. Fractional size, or where an individual is in its growth trajectory, appears to be an especially important driver of assemblage change with depth. This has implications for understanding fisheries impacts in the deep sea and how these impacts may propagate across depths. Article in Journal/Newspaper Northeast Atlantic Wiley Online Library Rockall Trough ENVELOPE(-15.036,-15.036,53.825,53.825) Journal of Animal Ecology 85 2 427 436 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Summary Variation within species is an often‐overlooked aspect of community ecology, despite the fact that the ontogenetic structure of populations influences processes right up to the ecosystem level. Accounting for traits at the individual level is an important advance in the implementation of trait‐based approaches in understanding community structure and function. We incorporate individual‐ and species‐level traits into one succinct assemblage structure metric, fractional size, which is calculated as the length of an individual divided by its potential maximum length. We test the implementation of fractional size in demersal fish assemblages along a depth gradient in the deep sea. We use data from an extensive trawl survey at depths of 300–2030 m on the continental slope of the Rockall Trough, Northeast Atlantic, to compare changes in fractional size structure along an environmental gradient to those seen using traditional taxonomic and trait‐based approaches. The relationship between fractional size and depth was particularly strong, with the overall pattern being an increase with depth, implying that individuals move deeper as they grow. Body size increased with depth at the intraspecific and assemblage levels. Fractional size, size structure and species composition all varied among assemblages, and this variation could be explained by the depth that the assemblage occupied. The inclusion of individual‐level traits and population fractional size structure adds to our understanding at the assemblage level. Fractional size, or where an individual is in its growth trajectory, appears to be an especially important driver of assemblage change with depth. This has implications for understanding fisheries impacts in the deep sea and how these impacts may propagate across depths. |
author2 |
Gaillard, Jean‐Michel Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Mindel, Beth L. Webb, Thomas J. Neat, Francis C. Blanchard, Julia L. |
spellingShingle |
Mindel, Beth L. Webb, Thomas J. Neat, Francis C. Blanchard, Julia L. A trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea |
author_facet |
Mindel, Beth L. Webb, Thomas J. Neat, Francis C. Blanchard, Julia L. |
author_sort |
Mindel, Beth L. |
title |
A trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea |
title_short |
A trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea |
title_full |
A trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea |
title_fullStr |
A trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea |
title_full_unstemmed |
A trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea |
title_sort |
trait‐based metric sheds new light on the nature of the body size–depth relationship in the deep sea |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/1365-2656.12471 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2656.12471 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2656.12471 |
long_lat |
ENVELOPE(-15.036,-15.036,53.825,53.825) |
geographic |
Rockall Trough |
geographic_facet |
Rockall Trough |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Journal of Animal Ecology volume 85, issue 2, page 427-436 ISSN 0021-8790 1365-2656 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1365-2656.12471 |
container_title |
Journal of Animal Ecology |
container_volume |
85 |
container_issue |
2 |
container_start_page |
427 |
op_container_end_page |
436 |
_version_ |
1800758261250523136 |