Larval fish dispersal along an estuarine-ocean gradient

S. Ramos, Claire B Paris-Limouzy, M. M. Angélico

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The present study investigated the larval fish dispersal along an estuarine-ocean gradient to explore connectivity between ocean and estuaries. During spring 2009, a combined ocean-estuarine survey was conducted along the Lima estuarine salinity gradient and in two transects off the adjacent coast (northwestern Iberian Peninsula), until the 100 m isobaths. Salinity, total particulate matter, particulate organic matter, total dissolved carbon, and dissolved organic carbon reached higher values at the ocean, and chlorophyll a and nutrients increased at the estuary. From the total 56 taxa identified, 14 were present along the gradient, including estuarine species (ES), marine stragglers (MS), and migrants (MM). Canonical correspondence analysis showed that species were separated along the gradient according to their ecological functional classification. MM associated with high salinity were separated from ES correlated with lower salinities and high chlorophyll a concentrations of inner estuary. Flounder (Platichthys flesus) showed a typical spatial gradient of MM, with abundance increasing from the ocean towards inner estuary. The dispersal of larvae along the Lima estuarine-ocean gradient was indicative of connectivity between habitats, emphasizing the need to consider this feature in management plans, mainly for species exploited by commercial fisheries.

Original languageEnglish (US)
Pages (from-to)1462-1473
Number of pages12
JournalCanadian Journal of Fisheries and Aquatic Sciences
Volume74
Issue number9
DOIs
StatePublished - 2017

Fingerprint

oceans
ocean
estuaries
fish
estuary
salinity
connectivity
chlorophyll a
chlorophyll
Platichthys flesus
flounder
particulate organic matter
dissolved organic carbon
correspondence analysis
Iberian Peninsula
particulate matter
particulates
transect
fisheries
larva

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

Cite this

Larval fish dispersal along an estuarine-ocean gradient. / Ramos, S.; Paris-Limouzy, Claire B; Angélico, M. M.

In: Canadian Journal of Fisheries and Aquatic Sciences, Vol. 74, No. 9, 2017, p. 1462-1473.

Research output: Contribution to journalArticle

@article{285df5b0955c4721a1f4d9e73d2e9c1a,
title = "Larval fish dispersal along an estuarine-ocean gradient",
abstract = "The present study investigated the larval fish dispersal along an estuarine-ocean gradient to explore connectivity between ocean and estuaries. During spring 2009, a combined ocean-estuarine survey was conducted along the Lima estuarine salinity gradient and in two transects off the adjacent coast (northwestern Iberian Peninsula), until the 100 m isobaths. Salinity, total particulate matter, particulate organic matter, total dissolved carbon, and dissolved organic carbon reached higher values at the ocean, and chlorophyll a and nutrients increased at the estuary. From the total 56 taxa identified, 14 were present along the gradient, including estuarine species (ES), marine stragglers (MS), and migrants (MM). Canonical correspondence analysis showed that species were separated along the gradient according to their ecological functional classification. MM associated with high salinity were separated from ES correlated with lower salinities and high chlorophyll a concentrations of inner estuary. Flounder (Platichthys flesus) showed a typical spatial gradient of MM, with abundance increasing from the ocean towards inner estuary. The dispersal of larvae along the Lima estuarine-ocean gradient was indicative of connectivity between habitats, emphasizing the need to consider this feature in management plans, mainly for species exploited by commercial fisheries.",
author = "S. Ramos and Paris-Limouzy, {Claire B} and Ang{\'e}lico, {M. M.}",
year = "2017",
doi = "10.1139/cjfas-2016-0325",
language = "English (US)",
volume = "74",
pages = "1462--1473",
journal = "Canadian Journal of Fisheries and Aquatic Sciences",
issn = "0706-652X",
publisher = "National Research Council of Canada",
number = "9",

}

TY - JOUR

T1 - Larval fish dispersal along an estuarine-ocean gradient

AU - Ramos, S.

AU - Paris-Limouzy, Claire B

AU - Angélico, M. M.

PY - 2017

Y1 - 2017

N2 - The present study investigated the larval fish dispersal along an estuarine-ocean gradient to explore connectivity between ocean and estuaries. During spring 2009, a combined ocean-estuarine survey was conducted along the Lima estuarine salinity gradient and in two transects off the adjacent coast (northwestern Iberian Peninsula), until the 100 m isobaths. Salinity, total particulate matter, particulate organic matter, total dissolved carbon, and dissolved organic carbon reached higher values at the ocean, and chlorophyll a and nutrients increased at the estuary. From the total 56 taxa identified, 14 were present along the gradient, including estuarine species (ES), marine stragglers (MS), and migrants (MM). Canonical correspondence analysis showed that species were separated along the gradient according to their ecological functional classification. MM associated with high salinity were separated from ES correlated with lower salinities and high chlorophyll a concentrations of inner estuary. Flounder (Platichthys flesus) showed a typical spatial gradient of MM, with abundance increasing from the ocean towards inner estuary. The dispersal of larvae along the Lima estuarine-ocean gradient was indicative of connectivity between habitats, emphasizing the need to consider this feature in management plans, mainly for species exploited by commercial fisheries.

AB - The present study investigated the larval fish dispersal along an estuarine-ocean gradient to explore connectivity between ocean and estuaries. During spring 2009, a combined ocean-estuarine survey was conducted along the Lima estuarine salinity gradient and in two transects off the adjacent coast (northwestern Iberian Peninsula), until the 100 m isobaths. Salinity, total particulate matter, particulate organic matter, total dissolved carbon, and dissolved organic carbon reached higher values at the ocean, and chlorophyll a and nutrients increased at the estuary. From the total 56 taxa identified, 14 were present along the gradient, including estuarine species (ES), marine stragglers (MS), and migrants (MM). Canonical correspondence analysis showed that species were separated along the gradient according to their ecological functional classification. MM associated with high salinity were separated from ES correlated with lower salinities and high chlorophyll a concentrations of inner estuary. Flounder (Platichthys flesus) showed a typical spatial gradient of MM, with abundance increasing from the ocean towards inner estuary. The dispersal of larvae along the Lima estuarine-ocean gradient was indicative of connectivity between habitats, emphasizing the need to consider this feature in management plans, mainly for species exploited by commercial fisheries.

UR - http://www.scopus.com/inward/record.url?scp=85030667093&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85030667093&partnerID=8YFLogxK

U2 - 10.1139/cjfas-2016-0325

DO - 10.1139/cjfas-2016-0325

M3 - Article

VL - 74

SP - 1462

EP - 1473

JO - Canadian Journal of Fisheries and Aquatic Sciences

JF - Canadian Journal of Fisheries and Aquatic Sciences

SN - 0706-652X

IS - 9

ER -