A study of a treatment camp for emotionally disturbed children summer 1949

Thesis (M.S.)--Boston Universit

Relationships between macroparasites and pollution exposure in Pacific sanddab, Citharichthys sordidus, in Santa Monica Bay, California

Santa Monica Bay is a heavily contaminated ecosystem that also provides an ideal habitat for bottom dwelling organisms such as flatfish. Pacific sanddab ( Citharichthys sordid us) is a pollution tolerant fish that thrives in such areas. Pacific sanddabs are opportunistic omnivores that feed at the sediment surface; they consume a variety of invertebrate's as well as juvenile fish. This life style has led to Pacific sanddab being host to a diverse macroparasite fauna; at least 10 parasite taxa are known to infect this species. Here I describe the macroparasite communities of Pacific sanddab from both contaminated and noncontaminated sites from within Santa Monica Bay, and a control site at Dana Point. A total of 320 fish was collected using a standard otter trawl from February 1999 to April 2001 at sites throughout Santa Monica Bay that were set up by the City of Los Angeles to monitor the effects of Hyperion Treatment Plant. Parasites obtained from the fish samples were identified and counted. The endohelminth infracommunity of Pacific sanddab was dominated by juvenile stages of parasites including the nematode Anisakis sp., the acanthocephalan Corynosoma sp., and the cestodes Lacistorhynchus dollfusi and plerocercoids of Tetraphyllidea. Seasonal intensities of Anisakis sp. differed significantly. Lacistorhynchus dollfusi is the only helminth that showed a significant difference in mean intensity among trawl stations. You might say that L. do/lfusi appears to be more sensitive to changes in habitat quality as its population was depressed in Santa Monica Bay closest to the outfall pipe of Hyperion Treatment Plant. This may be due to the effects of contaminants in the intermediate host populations for this parasite in the bay.California State University, Northridge. Department of Biology.Includes bibliographical references (leaves 22-26

The recreation of estuarine ecosystem : a case study at Paull Holme Strays, Humber Estuary, UK.

Habitat restoration can partially compensate for the extensive loss of coastal wetlands, which are transitional habitats that form the barriers between seas and oceans and the terrestrial environment. Coastal wetlands historically due to their location have either been altered by flooding or draining to suit human needs. Coastal wetlands when left unaltered function as water filters, flood buffers, nurseries for juvenile nekton and as wildlife habitat for birds and animals. Creation of costal wetland habitat with intact ecological functions remains a challenging task. Paull Holme Strays (PHS) is an example of a restored coastal wetland on the Humber Estuary, UK. This site was restored to natural coastal wetland in 2003, and is an effort in the restoration of both mud flat and salt marsh. To evaluate immediate restoration success of the restored wetland at PHS, the development of the abiotic [environmental] and biotic parameters (benthic invertebrate community development, shore bird assemblages and fish assemblages) at PHS were monitored. for the 3 years following restoration and compared to adjacent unaltered mudflats and salt marshes. In addition to the field surveys experimental studies on the colonization of halophytes within the salt mars were conducted. The study indicates that an abiotic factor such as sediment accretion is occurring at a rapid rate in the northwest of the restoration site. Grain size and organic content have remained constant and are at levels comparable to those in a natural reference habitat. The study also indicates that there has been an immediate biotic response to restoration, as both the biomass and species richness of invertebrates using the restoration site have increased since monitoring began, however levels are still lower than those of the natural reference habitat. Shorebird species diversity and densities were frequently as high in the restored habitat of PHS as in reference natural habitat between 2004 and 2005, although each species preferred specific sites. The examination of fish assemblages between 2004 and 2006 revealed that densities and species diversity were as high or higher in the restored habitat of PHS in comparison to reference unaltered habitats. The experimental studies of halophyte colonization, aimed to determine whether colonization could be expedited and showed that doing nothing to compacted farm soils prior to reinstatement of the flooding provided the best for initial colonization. These filed surveys that were conducted show that although restoration of PHS provided adequate habitat for some wetland species immediately, it takes decades for restoration sites to develop completely. Experimental manipulations allow evaluation of ecological functions and can supplement structural assessments of restoration success. This work indicates management measures, which will allow the development of new restoration sties to occur more rapidly, allowing for costal wetland function to start sooner

Personal Papers (MS 80-0002)

Letter from Richard L. Swig to Virginia Paysse acknowledging her request to cancel the reservation made for Mr. Harris L. Kempner

The recreation of estuarine ecosystem : a case study at Paull Holme Strays, Humber Estuary, UK

Habitat restoration can partially compensate for the extensive loss of coastal wetlands, which are transitional habitats that form the barriers between seas and oceans and the terrestrial environment. Coastal wetlands historically due to their location have either been altered by flooding or draining to suit human needs. Coastal wetlands when left unaltered function as water filters, flood buffers, nurseries for juvenile nekton and as wildlife habitat for birds and animals. Creation of costal wetland habitat with intact ecological functions remains a challenging task. Paull Holme Strays (PHS) is an example of a restored coastal wetland on the Humber Estuary, UK. This site was restored to natural coastal wetland in 2003, and is an effort in the restoration of both mud flat and salt marsh. To evaluate immediate restoration success of the restored wetland at PHS, the development of the abiotic [environmental] and biotic parameters (benthic invertebrate community development, shore bird assemblages and fish assemblages) at PHS were monitored. for the 3 years following restoration and compared to adjacent unaltered mudflats and salt marshes. In addition to the field surveys experimental studies on the colonization of halophytes within the salt mars were conducted. The study indicates that an abiotic factor such as sediment accretion is occurring at a rapid rate in the northwest of the restoration site. Grain size and organic content have remained constant and are at levels comparable to those in a natural reference habitat. The study also indicates that there has been an immediate biotic response to restoration, as both the biomass and species richness of invertebrates using the restoration site have increased since monitoring began, however levels are still lower than those of the natural reference habitat. Shorebird species diversity and densities were frequently as high in the restored habitat of PHS as in reference natural habitat between 2004 and 2005, although each species preferred specific sites. The examination of fish assemblages between 2004 and 2006 revealed that densities and species diversity were as high or higher in the restored habitat of PHS in comparison to reference unaltered habitats. The experimental studies of halophyte colonization, aimed to determine whether colonization could be expedited and showed that doing nothing to compacted farm soils prior to reinstatement of the flooding provided the best for initial colonization. These filed surveys that were conducted show that although restoration of PHS provided adequate habitat for some wetland species immediately, it takes decades for restoration sites to develop completely. Experimental manipulations allow evaluation of ecological functions and can supplement structural assessments of restoration success. This work indicates management measures, which will allow the development of new restoration sties to occur more rapidly, allowing for costal wetland function to start sooner.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Novel method for the extraction of DNA from Lamniformes tooth and denticle enamel Suitable for PCR

AbstractExtraction of high-quality genomic DNA from Lamniformes tooth fragment and dermal denticle enamel is discussed as a method of identifying individual sharks. We describe a procedure that permits isolation of genomic DNA of satisfactory size and quality for PCR analysis, as well as for most routine cloning applications. This method should allow for the non-invasive collection of genomic samples from Lamniformes.</jats:p