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Full-Text Articles in Life Sciences
Corbicula Fluminea Effects On Survival, Growth, And Drift Of Juvenile Lampsilis Siliquoidea In Laboratory Exposures, Allison Nicole Sieja
Corbicula Fluminea Effects On Survival, Growth, And Drift Of Juvenile Lampsilis Siliquoidea In Laboratory Exposures, Allison Nicole Sieja
MSU Graduate Theses
The Asian clam, Corbicula fluminea, is an invasive species that is abundant and often co-occurs with native freshwater mussels. Corbicula is widely suspected of having negative effects on native mussels, but few studies have empirically tested this hypothesis. I used laboratory experiments to evaluate how adult Corbicula affected the survivorship, growth, and drift of juvenile Lampsilis siliquoidea. Survival and growth of newly metamorphosed mussels were tested in downwelling flow-through chambers with glass-bead substrate. Treatments were control (no clams), small adult clams, or large adult clams. After 28 days, large clams slightly but significantly reduced the number of juveniles …
Fish And Macroinvertebrate Response To Restoration And Conservation Efforts, Madison C. Cogar
Fish And Macroinvertebrate Response To Restoration And Conservation Efforts, Madison C. Cogar
MSU Graduate Theses
Fish and macroinvertebrate response to restoration and conservation efforts varies in regards to the size and structure of the system (e.g. headwater streams in WV versus large rivers such as the Mississippi River). This project reviews fish and macroinvertebrate rebound in treated acid mine drainage (AMD) streams in WV as well as macroinvertebrate drift patterns in the Mississippi and Missouri Rivers. AMD is a product of a chemical reaction resulting in an acidic water outflow from mining sites, which may harm aquatic life. As a response, passive AMD treatment systems have been installed. I tested the effectiveness of remediation by …
Habitat Selection And Host Detection In The Salamander Mussel, Simpsonaias Ambigua, Eric A. Stegmann
Habitat Selection And Host Detection In The Salamander Mussel, Simpsonaias Ambigua, Eric A. Stegmann
MSU Graduate Theses
The native freshwater mussels, Order Unionida, have suffered many species extinctions and loss of abundance. Two important threats to native mussels are loss of habitat and loss of access to the vertebrate hosts of the parasitic mussel larvae. The Salamander mussel, Simpsonaias ambigua, is a habitat specialist, living under flat rocks. It is often found in direct association with its only known host, the common mudpuppy, Necturus maculosus. This association could result from movement and habitat selection by the mussels themselves. Alternatively, it might result from the deposition of juveniles by a resident host. Habitat selection and host …
The Effects Of Electrofishing On Different Life Stages Of Ozark And Eastern Hellbenders, Stephanie Kay Morrison
The Effects Of Electrofishing On Different Life Stages Of Ozark And Eastern Hellbenders, Stephanie Kay Morrison
MSU Graduate Theses
Electrofishing, a common method of freshwater fish sampling, has been shown to negatively affect some fish species, but the effects on non-target species, such as hellbenders, have not been well studied. I tested effects of electrofishing on the behavior of several life stages of captivereared Ozark (Cryptobranchus alleganiensis bishopi) and eastern (C. a. alleganiensis) hellbenders. Ozark hellbender eggs were exposed to different voltages in the laboratory, and embryos in higher voltages had higher incidences of twitching during exposures and higher numbers of morphological deformities after exposures. For hatchling Ozark hellbenders, which typically are sedentary, individuals moved more during exposure to …
The Effectiveness Of Visits To Dickerson Park Zoo On Guests' Conservation Mindedness And Behavior, Sarah K. Foster
The Effectiveness Of Visits To Dickerson Park Zoo On Guests' Conservation Mindedness And Behavior, Sarah K. Foster
MSU Graduate Theses
Today, there are more than 10,000 zoos worldwide that provide the public with opportunities to observe and learn about endangered and threatened species from ecosystems all over the world. Through direct and emotional interactions with wildlife at zoos, more than 600 million guests a year have a chance to evolve from spectators to participants of conservation. A mixed-method survey strategy took place at Dickerson Park Zoo in Springfield Missouri about the Species Survival Plan to understand guest’s conservation mindedness and behavior changes after a visit. Initial surveys were given in the zoo and the follow-up surveys were given online a …