Stable isotope ratios of tidal freshwater fish and invertebrate communities in North West Miramichi and Miramichi Estuary

PURPOSE: To characterize food webs of freshwater fish communities using stable isotopes

DESCRIPTION: Data set containing the carbon, nitrogen, and sulphur stable isotope ratios of fishes caught in the Northwest Miramichi River system

PARAMETERS COLLECTED: Species gut contents (ecological); species isotopic signatures (ecological); points (spatial)

PHYSICAL SAMPLE DETAILS: Powdered animal tissue

SAMPLING METHODS: Invertebrates were sampled via kicknet and were collected 1-4 meters from the shore of each location in one-minute intervals with 5-10 intervals per site. Fish were captured using a variety of net types in order to maximize sampling breadth. Please see below for list of net types and mesh sizes:

Large fyke (box, lead line, and cod = 5mm tight, 10mm loose); 6mm beach seine; Site 3: two small fyke nets (box, lead line, and cod = 17mm, 17mm and 10mm tight, and 32mm, 32mm, 20mm loose), one trap net (box = 47.6mm and lead line = 146mm) were used).

USE LIMITATION: To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 22:04 (UTC)
Created April 17, 2026, 22:04 (UTC)
contact_email DFO.GLFCSA-CASGLF.MPO@dfo-mpo.gc.ca
contact_person {"en": "Government of Canada; Fisheries and Oceans Canada", "fr": "Gouvernement du Canada; Pêches et Océans Canada"}
criticality_level []
data_dictionary EPSG:4326,http://www.epsg-registry.org,
geographic_scope []
open_canada_collection fgp
open_canada_date_published 2025-02-21 00:00:00
open_canada_keywords {"en": ["Diet composition", "Aquatic Ecosystems", "Estuarine Habitat", "Species/Population Interactions", "Catostomus commersonii", "Biological diversity", "Habitats", "Freshwaters", "Gulf of St. Lawrence"], "fr": ["composition de l'alimentation", "écosystèmes aquatiques", "habitat estuarien", "interactions des espèces/populations", "Catostomus commersonii", "Diversité biologique", "Habitat", "Eaux douces", "Golfe du Saint-Laurent"]}
open_canada_subject ["nature_and_environment"]
sensitivity_level unrestricted
title_fr Rapports isotopiques stables des communautés de poissons et d'invertébrés d'eau douce vivant dans un estuaire tidal dans la Miramichi Nord-Ouest et l'estuaire de Miramichi
update_frequency not_planned