- California State University
... incoming tide (Vadas et al. 1990). F. vesiculosus was rare near most of our experimental plots, but was patchily abundant in the surrounding area at three sites, Ledges, July 4, and Dick's. F. vesiculosus in eastern Maine starts reproducing in late April and May, peaks between May and July, but rema ...
... incoming tide (Vadas et al. 1990). F. vesiculosus was rare near most of our experimental plots, but was patchily abundant in the surrounding area at three sites, Ledges, July 4, and Dick's. F. vesiculosus in eastern Maine starts reproducing in late April and May, peaks between May and July, but rema ...
SHELLFISH AQUACULTURE - In Praise of Sustainable Economies
... shellfish aquaculture is a ‘green’ industry. Shellfish growers are committed to water quality – quality of their product and quality of the environment-- from the day the molluscs spawn to the day the finished product is eaten by the consumer. Shellfish grown in appropriately approved waters provide ...
... shellfish aquaculture is a ‘green’ industry. Shellfish growers are committed to water quality – quality of their product and quality of the environment-- from the day the molluscs spawn to the day the finished product is eaten by the consumer. Shellfish grown in appropriately approved waters provide ...
Trail Guide - the Marine Nature Study Area
... feed in the nutrient-rich waters adjacent to the salt marshes. Many spawn here and their eggs or larvae drift with the currents. Because so many larval fish develop in the bays, these are called the nurseries of the sea. Fauna ranging from primitive invertebrates to advanced vertebrates are present ...
... feed in the nutrient-rich waters adjacent to the salt marshes. Many spawn here and their eggs or larvae drift with the currents. Because so many larval fish develop in the bays, these are called the nurseries of the sea. Fauna ranging from primitive invertebrates to advanced vertebrates are present ...
A review of the ecological implications of mariculture and
... flushed than off-shore sites. Frid and Mercer (1989) noted that although fish farm developments were initially located in sheltered environments, development is now occurring in areas with strong tidal flows. This is certainly the case in Ireland. Significant benthic enrichment is known to occur at ...
... flushed than off-shore sites. Frid and Mercer (1989) noted that although fish farm developments were initially located in sheltered environments, development is now occurring in areas with strong tidal flows. This is certainly the case in Ireland. Significant benthic enrichment is known to occur at ...
Invasive Alien Species Fact Sheet – Dreissena polymorpha
... by means of its velum (Einsle and Walz 1972, Einsle 1973, Orlova 2002). The final larval stage lasts for about one week, after which the mussel attaches to hard substrates by secreting byssal threads (termed "spatfall"; cf. Jantz 1996). According to Jantz and Schöll (1998), spatfall usually occurs i ...
... by means of its velum (Einsle and Walz 1972, Einsle 1973, Orlova 2002). The final larval stage lasts for about one week, after which the mussel attaches to hard substrates by secreting byssal threads (termed "spatfall"; cf. Jantz 1996). According to Jantz and Schöll (1998), spatfall usually occurs i ...
EC ANNEX I
... made to the rocky intertidal sampling protocol from previous years and the protocol and SOPs have been finalized. Hobo water temperature sensors are currently deployed at five rocky intertidal sites in both KATM and KEFJ. In addition, salinity loggers were co-located at all rocky intertidal sites at ...
... made to the rocky intertidal sampling protocol from previous years and the protocol and SOPs have been finalized. Hobo water temperature sensors are currently deployed at five rocky intertidal sites in both KATM and KEFJ. In addition, salinity loggers were co-located at all rocky intertidal sites at ...
Effect of an exotic prey on the feeding pattern of a predatory snail
... Ruiz, Dean, Shirley, Maron, & Connors, 2000; Shiganova, 1998). However, the impact of most non-indigenous species remains unknown, and the predictability of their direct and indirect effects remains uncertain (Ruiz, Carlton, Grosholz, & Hines, 1997). One such impact can be a change in the feeding pat ...
... Ruiz, Dean, Shirley, Maron, & Connors, 2000; Shiganova, 1998). However, the impact of most non-indigenous species remains unknown, and the predictability of their direct and indirect effects remains uncertain (Ruiz, Carlton, Grosholz, & Hines, 1997). One such impact can be a change in the feeding pat ...
Benthic grazers and suspension feeders: Which one assumes the
... ABSTRACT: Size-frequency histograms of biomass, secondary production, respiration a n d energy flow of 4 dominant macrobenthic communities of the intertidal bay of K6nlgshafen were analysed and compared. In the shallow sandy fiats (Nereis-Corophium-belt [N.C.-belt], seagrass-bed and Arenicola-flat) ...
... ABSTRACT: Size-frequency histograms of biomass, secondary production, respiration a n d energy flow of 4 dominant macrobenthic communities of the intertidal bay of K6nlgshafen were analysed and compared. In the shallow sandy fiats (Nereis-Corophium-belt [N.C.-belt], seagrass-bed and Arenicola-flat) ...
2002 Benthic Ecology Meeting, Tallahassee, Florida
... disturbance affects invasibility has been examined through theoretical and correlative terrestrial studies. While theory repeatedly predicts that increased disturbance leads to increased invader success, results from empirical studies do not always support theory. The link between disturbance and po ...
... disturbance affects invasibility has been examined through theoretical and correlative terrestrial studies. While theory repeatedly predicts that increased disturbance leads to increased invader success, results from empirical studies do not always support theory. The link between disturbance and po ...
Effects of Food Type, Habitat, and Fish Predation on the Relative
... littoral habitats and energy flow in the Great Lakes. Habitat complexity is greater in Dreissena clusters compared to bare rocks (González and Downing 1999). Dreissenids filter seston from the water column and subsequently deposit feces and pseudofeces (seston that is filtered, coated with mucous, t ...
... littoral habitats and energy flow in the Great Lakes. Habitat complexity is greater in Dreissena clusters compared to bare rocks (González and Downing 1999). Dreissenids filter seston from the water column and subsequently deposit feces and pseudofeces (seston that is filtered, coated with mucous, t ...
temperature, desiccation, and species performance trends
... basis, intertidal areas are exposed to aerial conditions for longer periods of time as elevation increases. As a result, key ecological factors such as temperature and organism desiccation [10, 27] reach extreme values towards high elevations. Thus, for intertidal communities considered as a whole, ...
... basis, intertidal areas are exposed to aerial conditions for longer periods of time as elevation increases. As a result, key ecological factors such as temperature and organism desiccation [10, 27] reach extreme values towards high elevations. Thus, for intertidal communities considered as a whole, ...
Assessing the sensitivity of blue mussels (Mytilus edulis) to
... are visited. Rather than assessing the impact of activities as a single impact, the pressurebased approach supports clearer identification of the pathway(s) through which impacts on a feature may arise from the activity. If the pressures are not separated then it could be difficult to identify the s ...
... are visited. Rather than assessing the impact of activities as a single impact, the pressurebased approach supports clearer identification of the pathway(s) through which impacts on a feature may arise from the activity. If the pressures are not separated then it could be difficult to identify the s ...
4Macrofouling and Bioadhesion of Organisms on
... and adhesion of cells to surfaces. Organisms that are attached to a surface increase their chances of survival when compared to ones that are in the unattached state. EPS forms a highly hydrated matrix and provides a layer of protection to the cells against toxic compounds or against predation or di ...
... and adhesion of cells to surfaces. Organisms that are attached to a surface increase their chances of survival when compared to ones that are in the unattached state. EPS forms a highly hydrated matrix and provides a layer of protection to the cells against toxic compounds or against predation or di ...
Into the wild: documenting and predicting Crassostrea gigas Judith Kochmann
... • 6‐7 k tonnes produced in 2007, valued € 15 million ...
... • 6‐7 k tonnes produced in 2007, valued € 15 million ...
Dynamic Energy Budget model parameter estimation for the bivalve
... Dynamic Energy Budget (DEB) models serve as a powerful tool for describing the flow of energy through organisms from assimilation of food to utilization for maintenance, growth and reproduction. The DEB theory has been successfully applied to several bivalve species to compare bioenergetic and physio ...
... Dynamic Energy Budget (DEB) models serve as a powerful tool for describing the flow of energy through organisms from assimilation of food to utilization for maintenance, growth and reproduction. The DEB theory has been successfully applied to several bivalve species to compare bioenergetic and physio ...
Where Innovation Is Tradition - Potomac Valley Ecological
... •white perch is often a host along with other species http://www.lsc.usgs.gov /SPN.asp?StudyPlanNum ...
... •white perch is often a host along with other species http://www.lsc.usgs.gov /SPN.asp?StudyPlanNum ...
Mason Template 1: Title Slide
... -white perch is often a host along with other species http://www.lsc.usgs.gov /SPN.asp?StudyPlanNum ...
... -white perch is often a host along with other species http://www.lsc.usgs.gov /SPN.asp?StudyPlanNum ...
A River Runs Through It: Riverine Systems Ecology and Restoration
... This meeting would not have been possible without the hard work of many board members and members from the Society for Northwestern Vertebrate Biology. Thank you to all who contributed to meeting planning and session coordination. Thank you, too, to all who presented posters and presentations. We wo ...
... This meeting would not have been possible without the hard work of many board members and members from the Society for Northwestern Vertebrate Biology. Thank you to all who contributed to meeting planning and session coordination. Thank you, too, to all who presented posters and presentations. We wo ...
Rayed Bean (Villosa fabalis) - Registre public des espèces en péril
... has low concentric lines and wrinkles and dark growth rests. The inner shell surface is silvery white and iridescent. The shells of females are generally more inflated and more broadly rounded posteriorly than males. Freshwater mussels are sensitive indicators of overall ecosystem health and play im ...
... has low concentric lines and wrinkles and dark growth rests. The inner shell surface is silvery white and iridescent. The shells of females are generally more inflated and more broadly rounded posteriorly than males. Freshwater mussels are sensitive indicators of overall ecosystem health and play im ...
Screening Matrix for Aquaculture activities in outer Bantry Bay
... are filter feeders and they feed upon suspended particulate matter. They selectively ingest phytoplankton and other organic material (e.g. small zooplankton and bacteria) and dispose of inorganic and larger organic matter in pseudofeces, which is excreted into the water column. Typically the fecal a ...
... are filter feeders and they feed upon suspended particulate matter. They selectively ingest phytoplankton and other organic material (e.g. small zooplankton and bacteria) and dispose of inorganic and larger organic matter in pseudofeces, which is excreted into the water column. Typically the fecal a ...
Snuffbox Epioblasma triquetra
... glochidia) are released the following May-June. The glochidia are small- to mediumsized, hookless, and attach to the gills of their host fish. The glochidia have a depressed shape that reduces the likelihood of successful initial contact with the host. As a result, the number of young that survive t ...
... glochidia) are released the following May-June. The glochidia are small- to mediumsized, hookless, and attach to the gills of their host fish. The glochidia have a depressed shape that reduces the likelihood of successful initial contact with the host. As a result, the number of young that survive t ...
Crop Profile for Bivalve (Oysters, Manila Clams, Geoduck Clams and
... individually into PVC sections, plastic mesh tubes, or under raised netting or rigid mesh tunnels. Recent studies have shown that biodegradable tubes can also be used. Mesh netting is placed either over each individual tube or over groups of tubes to protect small Geoducks from predation. Netting an ...
... individually into PVC sections, plastic mesh tubes, or under raised netting or rigid mesh tunnels. Recent studies have shown that biodegradable tubes can also be used. Mesh netting is placed either over each individual tube or over groups of tubes to protect small Geoducks from predation. Netting an ...
Ecological gradients and relative abundance of native (Mytilus
... Rawson et al. 1999), particularly in regions where distributions overlap. Current biogeographic patterning of blue mussels thus is thought to be a function of the evolutionary history of each of the congeners, particularly differences in the oceanographic characteristics of the ocean basins in which ...
... Rawson et al. 1999), particularly in regions where distributions overlap. Current biogeographic patterning of blue mussels thus is thought to be a function of the evolutionary history of each of the congeners, particularly differences in the oceanographic characteristics of the ocean basins in which ...
food-contaminants-of-natural-origin-paper-2-unit-3b
... associated with the consumption of contaminated shellfish harvested from waters affected by growth of certain types of toxic algae ASP is an acute form of human poisoning, which causes a wide range of symptoms and can sometimes be fatal. ASP is caused by domoic acid (DA), a water-soluble acidic amin ...
... associated with the consumption of contaminated shellfish harvested from waters affected by growth of certain types of toxic algae ASP is an acute form of human poisoning, which causes a wide range of symptoms and can sometimes be fatal. ASP is caused by domoic acid (DA), a water-soluble acidic amin ...
Intertidal Zonation: The Rocky Intertidal
... Splash/ Spray zone (rarely covered by water) Upper intertidal zone Middle intertidal zone Lower intertidal zone (rarely exposed) ...
... Splash/ Spray zone (rarely covered by water) Upper intertidal zone Middle intertidal zone Lower intertidal zone (rarely exposed) ...
Mussel
Mussel is the common name used for members of several families of clams or bivalve molluscs, from saltwater and freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval.The word ""mussel"" is most frequently used to mean the edible bivalves of the marine family Mytilidae, most of which live on exposed shores in the intertidal zone, attached by means of their strong byssal threads (""beard"") to a firm substrate. A few species (in the genus Bathymodiolus) have colonised hydrothermal vents associated with deep ocean ridges.In most marine mussels the shell is longer than it is wide, being wedge-shaped or asymmetrical. The external colour of the shell is often dark blue, blackish, or brown, while the interior is silvery and somewhat nacreous.The common name ""mussel"" is also used for many freshwater bivalves, including the freshwater pearl mussels. Freshwater mussel species inhabit lakes, ponds, rivers, creeks, canals, and they are classified in a different subclass of bivalves, despite some very superficial similarities in appearance.Freshwater zebra mussels and their relatives in the family Dreissenidae are not related to previously mentioned groups, even though they resemble many Mytilus species in shape, and live attached to rocks and other hard surfaces in a similar manner, using a byssus. They are classified with the Heterodonta, the taxonomic group which includes most of the bivalves commonly referred to as ""clams"".