WorldCat Identities

Gulf Fisheries Centre (Canada)

Overview
Works: 244 works in 451 publications in 1 language and 3,043 library holdings
Genres: Observations  Conference proceedings 
Classifications: SH223, 333.95
Publication Timeline
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Most widely held works by Gulf Fisheries Centre (Canada)
Off bottom oyster (Crassostrea virginica Gmelin) culture in Prince Edward Island an evaluation of seed sources and stocking density by Luc A Comeau( )

2 editions published in 2012 in English and held by 53 WorldCat member libraries worldwide

In Prince Edward Island (PEI), off bottom culture of oysters (Crassostrea viginica) has become the method of choice in at least a portion of the oyster aquaculture production cycle. The purpose of this study was to examine the effects of seed source and stocking density on the productivity of oysters cultivated off the bottom. Seed oysters were collected from five estuaries in PEI and subsequently transferred to a single study site. Oysters were placed in polyethylene bags and, using steel racks, suspended at a distance of approximately 50 cm above the bottom in the intertidal zone. Results show that, over the three-year period, there was no significant difference in mortality rates between the source estuaries. However, oysters originating from two of the five estuaries had significantly better growth rates compared to the remaining three source estuaries. Also, in the first year, oysters stocked at densities of 500, 750 and 1000 individuals per bag had significantly greater shell growth than those stocked at 2000 individuals per bag. Similarly, in the second year, oysters stocked at 250 and 500 individuals per bag had significantly greater shell growth than those stocked at 750 individuals per bag. In the third year, however, no significant difference in growth or mortality was found between stocking densities of 100, 200, 300 and 500 individuals per bag. Nonetheless, bags holding 500 oysters in the third year had significantly more commercial (lower) grade oysters than those stocked at lower densities
An atlas of the January distribution of selected marine fish species in the Cabot Strait from 1994 to 1997 by G. A Chouinard( )

2 editions published in 2011 in English and held by 53 WorldCat member libraries worldwide

The geographic distribution of 25 marine fish species was examined using data collected during bottom trawl surveys conducted each January from 1994 to 1997. Over 90 species / species groups were captured during the four years of surveys. The geographic distribution of the 25 marine fish species that comprised 98% of the catches by weight is described. An analysis of diel differences in catchability was first conducted and correction factors were applied for 4 species. Standardized catches (in numbers and weights) were contoured using Delaunay triangulation. For seven commercial species, the distribution is described for fish smaller and larger than the minimum regulated size or size at maturity.--Includes text from document
Workshop on the lobster (Homarus americanus) fishery data collection pilot project and general data collection issued held in Moncton, New Brunswick, 16-17 February 2009 abstracts and proceedings by Workshop on the Lobster (Homarus Americanus) Fishery Data Collection( )

2 editions published in 2011 in English and held by 53 WorldCat member libraries worldwide

A workshop on lobster (Homarus americanus) fishery data collection was held in Moncton, New Brunswick, on February 16-17, 2009 to convene all stakeholders of the lobster industry and encourage an exchange of ideas on various data collections issues. A total of 61 participants attended the workshop mainly from the Atlantic Provinces, but also from Quebec, the Department of Fisheries and Oceans Canada (DFO) headquarters in Ottawa, and invited guests from Iceland. A total of 15 presentations were given. The outcome of a pilot project on lobster data collection was presented which received great support from all stakeholders. The 3-year pilot project consisted of buyers recording fishery information in situ from harvesters with a handheld computer and a portable printer while catches were off-loaded. The recorded catch and effort data were then transferred daily to a DFO server through an Ethernet connection making them accessible to DFO scientists and managers. Possible challenges and opportunities associated with the project's continuation were discussed, and there was a general consensus that lessons learned from the project will be useful for the development of a broad-scale electronic fishery data collection system. The intent of the workshop was also to emphasize on the importance of timely and reliable fishery data. DFO scientists have been requesting better data since the 1980s, which was also echoed in two Fisheries Resource Conservation Council reports on lobster (1995 & 2007) where the need for adequate data was identified as a prerequisite for the proper management of the fishery. Market accessibility and competitiveness, traceability, eco-certification, and demonstration of a sustainable fishery were also recognized as compelling forces towards accurate and reliable lobster fishery data and the need to create an efficient data collection system. All participants recognized that the present landing reporting system needs to be improved and updated to take advantage of current technologies. It was also stressed that there should be one gatekeeper for all fishery data and that comprehensive databases should be made available to all users base on legally-bound sharing principles. Examples of other data collection systems and/or procedures in other fisheries were presented to demonstrate how the out of date DFO's current system is despite being used for the most valuable fishery in the Gulf region. The extensive data collection system implemented by the Directorate of Fisheries in Iceland represents, in many aspects, the best approach for easy and efficient fisheries monitoring and transparent management of public resources. At the conclusion of the workshop, a brief presentation was made by DFO's Fisheries Management Division to announce the creation of a working group to review the issues associated with the electronic collection of lobster fishery data, and to explore possible solutions. Extended abstracts from most of the presentations at the workshop are presented in this document, as well as a summary of key elements that were discussed following the presentations
Temporal variation of stream and intragravel water temperatures in an Atlantic salmon (Salmo salar) spawning area in Catamaran Brook (New Brunswick) by Daniel Caissie( Book )

1 edition published in 2003 in English and held by 50 WorldCat member libraries worldwide

Acute and chronic toxicity of two formulations of the pyrethroid pesticide deltamethryn to an amphipod, sand shrimp and lobster larvae( )

4 editions published in 2010 in English and held by 48 WorldCat member libraries worldwide

Pyrethroid insecticides are among the most toxic insecticides known, and among the pyrethroids, deltamethrin is often the most toxic to crustaceans in comparative tests. Two formulated deltamethrin products are in use in Atlantic Canada. The agricultural formulation is called Decis and the aquaculture formulation is called AlphaMax. The objectives of this study were to use marine crustaceans to measure acute toxicity of deltamethrin formulations in sea water using conventional 96-hr toxicity test methods, 1-hr pulse exposures and chronic and sublethal toxicity tests. The marine organisms chosen for this study were: Homarus americanus, the American lobster (a decapod crustacean); Crangon septemspinosa, the sand shrimp (a decapod crustacean); and Eohaustorius estuarius, a marine amphipod (an amphipod crustacean). These organisms are relevant to the study of pesticide toxicity at environmentally relevant concentrations for the marine environment of Atlantic Canada.--Includes text from document
Preliminary carrying capacity analysis of current and future aquaculture scenarios in Malpeque Bay (Prince Edward Island) by R Filgueira( )

2 editions published in 2014 in English and held by 43 WorldCat member libraries worldwide

Growing oysters (Crassostrea virginica) using the French string technique at an exposed and sheltered site in Chaleur Bay, New Brunswick by M. M Niles( )

2 editions published in 2014 in English and held by 43 WorldCat member libraries worldwide

Coastal temperature monitoring program for 2003 and 2004 : Southern Gulf of St. Lawrence by Gilles Paulin( Book )

3 editions published in 2005 in English and held by 42 WorldCat member libraries worldwide

Comparison of eastern oyster (Crassostrea virginica) and blue mussel (Mytilus edulis) filtration rates at low temperatures( )

3 editions published in 2008 in English and held by 38 WorldCat member libraries worldwide

Eastern oysters (Crassostrea virginica) and blue mussels (Mytilus edulis) were collected in the Gulf of St. Lawrence at the northernmost distribution area of C. virginica and maintained in cold water (0°C, 4°C or 9°C) over a 63-day period. Filtration rates were periodically determined in closed chambers initially inoculated with 10,000 phytoplankton cells mL⁻¹. For C. virginica, filtration at low temperatures was clearly an exception: the percentage of the experimental population clearing the phytoplankton cells from the closed chambers declined from peak values of 50% at 9°C to null values (no animals filtering) at 0°C. For M. edulis, the percentage ranged from 100% at 9°C to 17% at 0°C. With respect to absolute filtration rates, C. virginica cleared significantly fewer particles than did M. edulis. Moreover, unlike M. edulis, C. virginica showed no adaptation to cold during the 63-day experiment. Together these results suggest that C. virginica is disadvantaged in terms of grazing on seasonal phytoplankton blooms, including toxic (domoic acid) blooms, which have historically occurred at low temperatures (< 9°C) in eastern Canadian waters. We caution, however, that further experiments are required to ascertain how changes in food quality or availability may influence feeding behaviour of C. virginica at low temperatures
Coastal Temperature Monitoring Program from 2010 to 2013 : southern Gulf of St. Lawrence by Gaston Paulin( )

2 editions published in 2014 in English and held by 38 WorldCat member libraries worldwide

A third-generation direct-entry system for gathering biological data from fish by Clarence Bourque( Book )

2 editions published in 2005 in English and held by 38 WorldCat member libraries worldwide

The Department of Fisheries and Oceans scientific staff at the Gulf Fisheries Centre, in Moncton, New Brunswick measure 80,000 to 120,000 herring and gather detailed biological data from 6,000 to 10,000 of these each year as part of the annual stock assessment and evaluation process. These fish come from samples of the commercial fishery, at-sea surveys and other research projects carried out each year. To enhance efficiency and accuracy an automated online computerized data entry, coding and verification system was developed. This system was updated to a more user-friendly graphic user interface based system compatible with 16-bit computer and networking technology. The enhanced multimedia capabilities and faster hardware found in modern computers as well as network compatibility issues and security constraints commonly in place on Local Area Networks made it necessary to update the software to be compatible with the 32-bit Windows XP platform. The updated software uses multimedia prompting and warning messages to improve efficiency, reduce errors and user fatigue. New graphic user interface based software was developed to replace outdated MSDOS based programs used to manipulate and initialize the electronic fish measuring board hardware component which are no longer fully supported under modern platforms. This document provides an overview of the system's different facilities including main data-gathering functions and utilities developed along with the main software
The Community Aquatic Monitoring Program (CAMP) for measuring marine environmental health in coastal waters of the southern Gulf of St. Lawrence 2006 overview by J Weldon( )

3 editions published in 2008 in English and held by 37 WorldCat member libraries worldwide

In 2003, the Department of Fisheries and Oceans (DFO) Gulf Region developed a monitoring program called the Community Aquatic Monitoring Program (CAMP) to help determine the ecological health of estuaries and coastal shorelines in the southern Gulf of St. Lawrence (sGSL). The primary goal of CAMP continues to provide an outreach program for DFO to interact with community environmental groups. The monitoring aspect developed from this partnership was to test the hypothesis that a relationship exists between the health of an estuary or coastal shoreline and the diversity and abundance of finfish and crustacean species which inhabit the littoral or near shore zone. This report summarizes baseline physical and biological data for the estuaries sampled in 2006
The Community Aquatic Monitoring Program (CAMP) for measuring marine environmental health in coastal waters of the southern Gulf of St. Lawrence 2007 overview by J. W Weldon( )

4 editions published in 2009 in English and held by 37 WorldCat member libraries worldwide

In 2003, the Department of Fisheries and Oceans (DFO) Gulf Region initiated the development of a monitoring program called the Community Aquatic Monitoring Program (CAMP). One of the program goals was to help determine the ecological health of estuaries and coastal shorelines in the southern Gulf of St. Lawrence (sGSL). The primary goal of CAMP continues to provide an outreach program for DFO to interact with community environmental groups. The monitoring portion of CAMP is being used to test the hypothesis that a relationship exists between the health of an estuary or coastal shoreline and the diversity and abundance of finfish and crustacean species which inhabit the intertidal and near shore zone. CAMP expanded the number of locations from 4 in its 2003 pilot year (Theriault et al. 2006) to 24 throughout the Maritime Provinces of Nova Scotia (NS), New Brunswick (NB) and Prince Edward Island (PEI) in 2004. Baseline sites, meaning sites at which 6 stations were sampled by day-time beach seining once a month from May to September inclusive numbered 13 in 2004. In 2005, the number of locations totalled 22 of which 20 were considered as baseline (Weldon et al. 2007). In 2006, there were 22 locations participating and 18 were able to collect data for the five full months. In 2007, the number of baseline sites increased to 25, 24 of which maintained baseline status. NGOs in each watershed adhered to the same sampling methodology and related protocols as outlined in Weldon et al. (2005). All species of finfish, crab and shrimp collected were identified, separated into adults and young of the year, enumerated and released. Habitat was also characterized by collecting information such as water temperature, salinity, dissolved oxygen, % plant cover and algae cover and, once a year in September, collection of a substrate sample for measurement of grain size distribution, % moisture content and % organic content. Two water samples were collected at each station at all locations all 5 months then sent away for analysis of nutrient content. This report summarizes baseline physical and biological data for the estuaries sampled in 2007. This year more almost six hundred thousand (597295) animals were processed and 37 different species were identified. In order to test the hypothesis that these data reflect environmental quality, we are getting close to the several years of data required to detect temporal and spatial patterns that may exist
Increased oxygenation of sediment in Lamèque Bay (New Brunswick) following removal of algae and reduction of nutrient inputs from a seafood processing plant by François Plante( Book )

2 editions published in 2008 in English and held by 36 WorldCat member libraries worldwide

This report details the results of efforts to remove algae and nutrient inputs from Lamèque Bay, a shallow temperate bay located in northeastern New Brunswick. Analyses of redox and sulphides are provided as well as evidence identifying the causes of improved oxygenation of sediments between 2001 and 2007.--Includes text from document
Preliminary index of essential habitats for certain marine species of importance in the eastern region of New Brunswick by J Therrien( )

5 editions published in 2000 in English and held by 36 WorldCat member libraries worldwide

This document presents a representative portrait of the information currently available on major marine resources in eastern New Brunswick in the form of data on 30 essential habitats of 31 marine species or groups of species. The descriptions are divided into three ecozones: Chaleur Bay, Shediac Valley, and the Northumberland Strait. The term "essential habitat" is used to characterize each species/habitat grouping representative of a vital habitat for a particular wildlife species. These areas are essential for various crucial stages in the species life cycle (such as spawning ground, feeding ground, or migration area) or they constitute a major area of concentration, particularly for mostly sedentary species such as mollusks. Fish concentration areas are generally not included, except for those associated with one particular life stage or a threatened species. The final section includes a brief analysis of the ecological and socio-economic characteristics of the habitats
Catches of downstream migrating fish in fast-flowing rivers using rotary screw traps by Gerald J Chaput( Book )

4 editions published in 2004 in English and held by 35 WorldCat member libraries worldwide

The rotary screw trap provides a method of capturing fishes in fast flowing waters with minimal impact on the environment. A rotary screw trap is a passive sampling gear which takes advantage of flowing water to capture and retain downstream migrating fish. The gear is non-size and non-species selective. In sampling from five rivers in New Brunswick (Canada) during the spring and fall seasons, over 20 species of fishes were captured including Atlantic salmon (Salmo salar L.), various species of small cyprinids (dace, chub, shiner), suckers (Catastomus sp.), American eel (Anguilla rostrata L.), and sea lamprey (Petromyzon marinus L.). The size of fish sampled in the traps ranged from emerging salmon fry at 3 cm fork length to adult American eels at over 85 cm in total length. Catches at the traps provided descriptions of downstream fish movements in the spring and fall, variations in species presence and relative abundance among years, within a river system and among rivers
Estimating the abundance and distribution of snow crab (Chionoecetes Opilio) off Cape Breton Island using video camera transects : a complementary technique to the bottom trawl survey( Book )

2 editions published in 2007 in English and held by 35 WorldCat member libraries worldwide

A fishery for snow crab (Chionoecetes opilio) has occurred on the east coast of Nova Scotia since the late 1970's. A biomass index was introduced for the 2000 fishing season based on three years of data collected by the Department of Fisheries and Oceans using a Nephrops trawl net. Because of uncertainties related to trawl behaviour on hard bottoms and the seasonal movements of snow crab in these areas, a simultaneous trawl, video, and trap study was initiated in 2003 in the Glace Bay Hole area of Sydney Bight to complement the trawl survey data. A video camera was attached to a sled and pulled along the ocean floor at approximately 1.5 nautical miles per hour. The video feed was recorded along with the latitude and longitude and later viewed to create a log of the identified organisms. Sixteen traps were set in and around the study region to qualify the crabs viewed in the video survey. Abundance and biomass indices were calculated and mapped using a geostatistical method called kriging. The trawl survey study area covered a 3,388 km² surface with an estimated biomass of 2,527 metric tonnes (mt). The video survey study area covered 2,366 km² with an estimated biomass of 2,882 mt. The total biomass within the study areas covered by the trawl and video surveys, accounting for the common area, was estimated at 4,332 mt, 40% more than those of the trawl survey. The video survey appears to be an effective means of assessing commercial snow crab and their habitat. Gear selection is an essential part of any study; the best strategy for a snow crab survey in the Glace Bay Hole may be a combination of the conventional Nephrops trawl, video camera, and trap surveys, which may allow an increase in the accuracy of the snow crab stock assessment
Abundance and function of rock crabs (Cancer irroratus) in longline mussel (Mytilus edulis) farms by Jean-François Mallet( Book )

3 editions published in 2009 in English and held by 35 WorldCat member libraries worldwide

This document reports on the relationship between crabs and suspended mussel (Mytilus edulis) culture in Prince Edward Island, Canada. Rock crabs (Cancer irroratus) were attracted to mussel leases when suspended socks (sleeves) touched the estuarine bottom. Crabs were shown to clean mussel socks of fouling organisms and debris. Ten crabs could reduce the weight of fouling and debris to about half the weight obtained in the absence of crabs. They also reduced the abundance of an invasive tunicate, Styela clava, which attached to mussel shells. This effect was detected at times when S. clava abundance on socks was relatively low. Rock crab abundances in the mussel leases declined from spring to fall, an observance that could be attributed to a seasonal migration or to the directed rock crab fishery. In one estuarine system the investigation focussed on the green crab, Carcinus maenas. As reported for the rock crab, the green crab had a significant cleansing effect, except with respect to an established invasive tunicate, Ciona intestinalis
Quality assurance : quality control (QA/QC) program for the community aquatic monitoring program (CAMP) by M.-H Thériault( Book )

2 editions published in 2008 in English and held by 35 WorldCat member libraries worldwide

A quality assurance and quality control (QA/QC) program was carried out at six Community Aquatic Monitoring Program (CAMP) sites in July-August 2007 to determine the accuracy and the precision of faunal identification and abundance estimates provided by environmental nongovernmental organizations (ENGOs). ENGOs enumerated adults and young-of-the-year for each species, following CAMP protocols, but then retained the catch instead of releasing it live in order to be re-processed by Dept. of Fisheries and Oceans (DFO) biologists. Three to five of the six stations normally sampled within each site were examined. Species richness and total abundance for each species, by station and site, were compared between DFO biologists and ENGOs.--Document
 
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Alternative Names
Canada. Centre des pêches du Golfe

Canada. Department of Fisheries and Oceans. Gulf Fisheries Centre

Canada. Department of Fisheries and Oceans. Gulf Region. Science Branch. Gulf Fisheries Centre

Canada. Dept. of Fisheries and Oceans. Gulf Fisheries Centre

Canada. Dept. of Fisheries and Oceans. Gulf Region. Gulf Fisheries Centre

Canada. Dept. of Fisheries and Oceans. Gulf Region. Science Branch. Gulf Fisheries Centre

Canada. Gulf Fisheries Centre

Canada. Ministère des pêches et des océans. Centre des pêches du Golfe

Canada. Ministère des pêches et des océans. Région du golfe. Centre des pêches du Golfe

Canada. Ministère des pêches et des océans. Région du golfe. Direction des sciences. Centre des pêches du Golfe

Gulf Fisheries Center (Canada)

Languages
English (52)