Hogfish is an important food fish for local Caribbean communities, so managing stocks in such a way that people can continue to utilize this species for food and economic stability is critical. Ecologically, hogfish enhance the biodiversity of reefs and contribute to top-down co…
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This study addresses how hunter-gatherers provision themselves when they have a large, dense population and are faced with constraints like small territories and reduced mobility. These conditions were present in the Sacramento Valley, California at the end of the Late Period (1…
This study's research question raises the issue of the paradoxical nature of the Egyptian canon of representation which shows, simultaneously, a certain rigidity in the application of established stylistic and iconographic rules, especially in non-state commissioned art, and evi…
Metacommunities are spatially structured communities linked by dispersal. They provide a connection between local community assembly and regional-level processes. However, very little information exists on how metacommunity structure and associated structuring mechanisms changes…
Condition indices are widely used to generate biological insight. However, purported relationships to indices are imprecise or inconsistent in the wild. I investigated factors influencing relative weight (Wr), a condition index commonly applied to fish. I first examined the rela…
Applied researchers in demand analysis often assume explicitly that the commodities of interest are separable from many of the other goods in the utility function. Assuming a separable group allows for multistage budgeting and thus, the analyst can estimate a system of condition…
The redox properties of Copper (Cu) make it both an ideal cofactor for many enzymes, and, in its free form, a highly toxic molecule capable of stimulating production of reactive oxygen species or binding to protein thiol groups. Therefore, living organisms have evolved homeostat…
Background: Temperature has a fundamental effect on organisms because it alters the speed of biochemical reactions and thus metabolism. This influence scales up to have ecosystem wide effects as the life history strategies of individual species differ in response to temperature.…
The presence of many human pharmaceuticals in the aquatic environment is now a worldwide concern and yet little is known of the chronic effects that these bioactive substances may be having on aquatic organisms. This study used mammalian pharmacodynamics to predict the mode of a…
As the biomass of jellyfish (medusae of the Scyphozoa and Hydrozoa) has risen in numerous locations worldwide, awareness of their potential to exert a controlling influence on marine ecosystems and hinder the recruitment of fish stocks has increased. Medusae are capable of inten…
A series of investigations were conducted in order to evaluate the effect of MOS supplementation in finfish aquaculture. Fish with great potential in aquaculture industry were tested with regards to effect of dietary MOS supplementation on intestinal histology and microbiology a…
Streptococcus agalactiae is the causative bacterium of streptococcosis and causes severe economic losses in wild and cultured fish and cattle, worldwide. In fish, infection can result in septicemia with hemorrhages on the body surface and in the external and internal organs. Str…
ln Southeast Asia, biodiversity-rich forests are lost to logging, tree monocultures, and mining at an unprecedented rate. Impacts of these land-use changes are largely unknown for freshwater biodiversity. Here, I addressed questions pertinent to understanding impacts of land-use…
Ecological models allow resource managers to evaluate human impacts on fish and their habitat. However, quantitative methods that incorporate and assess uncertainty in these models are rare. These models require fish life history information, which is often uncertain, and can th…
Accurately identifying fishes in their early life stages using morphology is challenging, time-consuming, and requires taxonomic expertise. Metabarcoding is a method that can be used to identify species in batch samples (Cruaud et al. 2017). Detection of early life stages of fis…
Terrestrial excursions have been observed in multiple lineages of marine and freshwater fishes. These ventures into the terrestrial environment may be used when fish are searching out new habitat during drought, escaping predation, laying eggs, or seeking food sources. The physi…
The Gulf Stream exerts tremendous influence over oceanographic conditions in the Northwest Atlantic as it transports tropical water to higher latitudes. As the Gulf Stream’s path traverses the east coast of North America, there are implications for the biogeography of marine eco…
Stream connectivity is necessary for the persistence and viability of migratory fish populations. However, many of the world’s river contain dams, creating barriers or obstacles that can impede movement. Fishways have been constructed to provide passage for migratory fishes, but…
The interrelationships and phylogenetics of extinct Paleozoic and Early Mesozoic ray-finned fishes (Actinopterygii) are obscured by a low-quality fossil record and understudy of Late Paleozoic (Permo-Carboniferous) actinopterygians. To help address this issue, I describe a new s…