Two species of myxosporean parasites in common carp (Cyprinus carpio) in West Java, Indonesia, were studied. Light and scanning electron microscopy descriptions of the morphological characteristics of spores for the identification of both species were made. A total of 150 tubifi…
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Cladistic methods are used to investigate phylogenetic relationships of the Indo-Pacific marine fish family Plesiopidae. To help determine an appropriate outgroup, electron microscopy was employed to examine egg surface morphology. Plesiopids possess long filaments and unusual c…
Acute and chronic toxicity tests for malathion, diazinon, and sherpa and for Cu, Hg, Pb, Zn, Ni, and Fe were conducted. Mortalities and LC50-96 hr values for Barilius vagra and Cyprinus carpio exposed to pesticides were variable. Long-term exposure to pesticides modified morphol…
Channel catfish leukocytes demonstrated cytoplasmic staining patterns very similar to mammalian leukocytes when stained for acid phosphatase, a-napthyl butyrate esterase, b-glucuronidase and Sudan Black B. Monocytes, macrophages, neutrophils and possibly immature lymphocytes wer…
This is the first characterization of paddlefish (Polyodon spathula ) leukocytes and lymphoid tissues by enzyme cytochemistry, and the first study of lymphoid tissue ontogeny. Paddlefish monocytes/macrophages, T and B lymphocytes and granulocytes were positive for acid phosphata…
Shrimp culture has become a major export-oriented production system in Indonesia. This study is based on nine months of field research conducted from September 1990 to May 1991 in three shrimp-producing areas of West Java, Indonesia, namely the Tangerang/Serang, Karawang, and Ci…
At least ten fish stocks migrate in the Gulf of Thailand and are shared by Cambodia, Malaysia, Thailand, and Vietnam. This biological phenomenon became important in fishery management after these four littoral states extended their national jurisdiction and claimed the 200-mile …
This dissertation is an examination of growth, behavior, and dispersal during the early life stages of marine fishes in the Gulf of Mexico. Understanding movements of early life stages is a key part of managing exploited fish populations. Position in the water column can impact …
The major aims of this study are to: (1) Assess the relative degree of heavy metal and chlorinated hydrocarbons contamination of fish products collected from several different locations and times from the Mediterranean Sea and Atlantic Ocean; (2) Conduct health risk analysis of …
One of the major limitations of aquaculture has been the inefficient digestion of phytate-bound phosphorus in plant-based diets. The enzyme phytase has been found to degrade phytate into a form that can be utilized by non-ruminant animals. The goal of this research was to produc…
Channel catfish (CCF), Ictalurus punctatus, gut cells associated with innate or acquired immunity were characterized based on their reaction to monoclonal antibodies (mAb) using flow cytometry, histochemistry, immunohistochemistry, and enzyme staining techniques. Isolation of gu…
Photobacterium damsela subsp. piscicida, formerly Pasteurella piscicida, is an important new pathogen of hybrid striped bass cultured in brackish water on Louisiana mariculture farms. Louisiana isolates compared with strains of P. damsela subsp. piscicida from Greece, Japan, Isr…
Performance by stocked brook trout (Salvelinus fontinalis) differs with respect to the native species present in the community into which the trout are placed. Understanding the dietary and habitat requirements of the native species, and how the brook trout alter the ecosystem, …
This study analyzed the productivity, production technology, and technical efficiency of cultured shrimp production in Asia using data from Network of Aquaculture Centres in Asia-Pacific. Based on the farm-level information, partial productivity ratios and dual cost total factor…
Worldwide declines in fish stocks in the twentieth century have led some governments and international conservation organizations to embrace local marine resource management systems which are often based on environmentally-friendly fishing techniques, sacred sites, and local eld…
Since 1998, episodes of mass mortality have occurred in populations of common carp Cyprinus carpio carpio and koi Cyprinus carpio koi. A herpesvirus, termed koi herpesvirus (KHV) isolated from infected fish has been shown to be the cause of the disease which has now been detecte…
The feeding of plant proteins to fish results in generation of a high amount of phytate because fish cannot effectively digest it. The hydrolysis of phytate by microbes in the environment release P which can stimulate eutrophication. This study was conducted to express phytase g…
This study developed a robust technique for the assessment of morphometric differences among overwintering northern fish populations. Arctic charr were sampled soon before the freeze-up and just after ice break-up at two subarctic Quebec lakes. A homogenous sample of 397 fish wa…
Sardines and anchovies are small pelagic fishes that support important commercial fisheries around the world. This project reviews the inverse cyclic behavior in the abundance of these two stocks, which is a striking feature in many regions. In addition, the project used qualita…