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Marine Science Faculty Publications

Biomass

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Full-Text Articles in Life Sciences

Population Dynamics Of Pinfish In The Eastern Gulf Of Mexico (1998-2016), Meaghan E. Faletti, Dinorah H. Chacin, Jonathan A. Peake, Timothy C. Macdonald, Christopher D. Stallings Jan 2019

Population Dynamics Of Pinfish In The Eastern Gulf Of Mexico (1998-2016), Meaghan E. Faletti, Dinorah H. Chacin, Jonathan A. Peake, Timothy C. Macdonald, Christopher D. Stallings

Marine Science Faculty Publications

Forage fishes play an important role in marine ecosystems by transferring energy and nutrients through the food web. The population dynamics of forage species can therefore have cascading effects across multiple trophic levels. Here, we analyzed a 19-year dataset on Pinfish (Lagodon rhomboides) across four eastern Gulf of Mexico estuaries to investigate population dynamics, inter- and intra-annual synchrony, metapopulation portfolio effects, growth, and habitat effects. Young-of-year growth rates did not differ among estuaries. The population dynamics of these four systems were stable in the long-term, but highly dynamic inter-annually. Intra-annual dynamics were stable and predictable despite variation in long-term means. …


Remote Estimation Of Biomass Of Ulva Prolifera Macroalgae In The Yellow Sea, Lianbo Hu, Chuanmin Hu, He Ming-Xia Jan 2017

Remote Estimation Of Biomass Of Ulva Prolifera Macroalgae In The Yellow Sea, Lianbo Hu, Chuanmin Hu, He Ming-Xia

Marine Science Faculty Publications

Since 2008, macroalgal blooms of Ulva prolifera (also called green tides) occurred every summer in the Yellow Sea (YS), causing environmental and economic problems. A number of studies have used satellite observations to estimate the severity of the blooms through estimating the bloom size and duration. However, a critical bloom parameter, namely biomass, has never been objectively determined due to lack of measurements. In this study, laboratory experiments were conducted to measure U. prolifera biomass (wet weight) per unit area and the corresponding spectral reflectance, through which a robust relationship has been established to link biomass per area to …


Indirect Effects Of Conservation Policies On The Coupled Human-Natural Ecosystem Of The Upper Gulf Of California, Hem Nalini Morzaria-Luna, Cameron H. Ainsworth, Isaac C. Kaplan, Phillip S. Levin, Elizabeth A. Fulton Jan 2013

Indirect Effects Of Conservation Policies On The Coupled Human-Natural Ecosystem Of The Upper Gulf Of California, Hem Nalini Morzaria-Luna, Cameron H. Ainsworth, Isaac C. Kaplan, Phillip S. Levin, Elizabeth A. Fulton

Marine Science Faculty Publications

High bycatch of non-target species and species of conservation concern often drives the implementation of fisheries policies. However, species- or fishery-specific policies may lead to indirect consequences, positive or negative, for other species or fisheries. We use an Atlantis ecosystem model of the Northern Gulf of California to evaluate the effects of fisheries policies directed at reducing bycatch of vaquita (Phocoena sinus) on other species of conservation concern, priority target species, and metrics of ecosystem function and structure. Vaquita, a Critically Endangered porpoise endemic to the Upper Gulf of California, are frequently entangled by finfish gillnets and shrimp driftnets. We …


Elevated Levels Of Microbial Activity In The Coral Surface Microlayer, John H. Paul, Mary F. Deflaun, Wade H. Jeffrey Oct 1986

Elevated Levels Of Microbial Activity In The Coral Surface Microlayer, John H. Paul, Mary F. Deflaun, Wade H. Jeffrey

Marine Science Faculty Publications

No abstract provided.