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Found 10 records similar to Biodiversity of the whelk (Buccinum) dredge survey in the St. Lawrence Estuary
A research survey on Stimpson's surfclam (Mactromeris polynyma) was conducted from June 15 to June 26 2017 in the Estuary of the St. Lawrence River on the Forestville deposit (Fishing Area 1A). The primary objective of this survey was to investigate the spatial distribution of pre-commercial (< 80 mm) and commercial (≥ 80 mm) sizes of Stimpson's surfclams as well as to assess the abundance and diversity of benthic species associated with the sandy habitat of the Stimpson's surfclam. Only benthic species data associated with Stimpson's surfclam habitat are presented in this dataset. Data were collected according to a systematic sampling design consisting of 77 stations, between 7 and 45 m depth.
The North Shore of the Lower Estuary (Upper North Shore, Quebec) is a productive coastal system where many commercial species of benthic invertebrates are fished in the infralittoral (10-20 m) and circalittoral (20-50 m) zone. However, little data exist on the biodiversity of non-commercial species and the environmental characteristics of the benthic habitat in this area. Two scientific surveys were conducted in 2018 and 2019 to address this knowledge gap by developing a framework of biodiversity and environmental (water column and seafloor) data taking that will be used to determine the baseline state of the benthic ecosystem in this region. Surveys were conducted in 2018 (August 11-14) and 2019 (July 30-August 5) in the Upper North Shore region (between the towns of Forestville and Godbout).
Summary
The Quebec region of the Department of Fisheries and Oceans (DFO) is responsible for the assessment of several fish and invertebrate stocks exploited in the Estuary and the northern Gulf of St. Lawrence. The commercial catches sampling program is one of the sources of information used to complete these assessments. The data collected by this program, at wharf or at sea, offers among other things the advantage of a relatively large spatio-temporal coverage and provides some of the necessary knowledge to assess the demography and the structure of the exploited populations. This program is implemented by specialized DFO staff whose main mandate is to collect biological data on groundfish, pelagic fish and marine invertebrate species that are commercially exploited in the various marine communities.
This table contains data described by the following dimensions (Not all combinations are available): Geography (96 items: Alma; Quebec; Bathurst; New Brunswick; Brandon; Manitoba; Baie-Comeau; Quebec ...).
This table contains data described by the following dimensions (Not all combinations are available): Geography (163 items: Alma; Quebec; Bathurst; New Brunswick; Baie-Comeau; Quebec; Amos; Quebec ...).
This table contains data described by the following dimensions (Not all combinations are available): Geography (96 items: Amos; Quebec; Bathurst; New Brunswick; Alma; Quebec; Baie-Comeau; Quebec ...).
This table contains data described by the following dimensions (Not all combinations are available): Geography (167 items: Census agglomerations 10;000 to 49;999;Alma; Quebec; Amos; Quebec; Baie-Comeau; Quebec ...).
This table contains 1392 series, with data for years 1971 - 2011 (not all combinations necessarily have data for all years). This table contains data described by the following dimensions (Not all combinations are available): Geography (87 items: Abbotsford - Mission (census metropolitan area), British Columbia; Baie-Comeau (census agglomeration), Quebec; Barrie (census metropolitan area), Ontario; Bathurst (census agglomeration), New Brunswick; ...); Area (2 items: Census metropolitan area/census agglomeration; Census metropolitan area-ecosystem/census agglomeration-ecosystem); Land cover and land use (8 items: Total land area; Built-up area, settled; Built-up area, roads; Arable; ...).
The Planning for an Environmental Response (PIER) initiative falls under the umbrella of the Government of Canada’s Oceans Protection Plan (OPP), whose goal is preserving marine ecosystems vulnerable to increased transportation and the development of the marine industry. The PIERs’ main mandate is to acquire and update biological sensitivity data under its jurisdiction for preparation and response purposes in the event of an oil spill. This dataset contains all observations of marine organisms noted during the analysis of 2959 underwater images sampled over a large extent of the coastal zone (≤10 m) of the Estuary and the Gulf of St. Lawrence (Quebec region). The dataset includes 21 490 occurrences of 150 taxa and informal categories including macroalgae, invertebrates and fish.
The Coastal Biodiversity Trawl Survey for the Passamaquoddy Bay was conducted annually between July to October from 2009 to 2019. This survey was intended to monitor long-term change in local species presence, habitat utilization, and health. The sampling activities support coastal research in fisheries, aquaculture, marine protected areas, and ecosystem change. Data collected prior to 2013 are generally not recommended for comparative analysis due to changes in vessel, sampling effort, and protocols.