نتایج جستجو برای: reef fishery
تعداد نتایج: 19157 فیلتر نتایج به سال:
Macroalgae-dominated reefs are a prominent habitat in tropical seascapes that support diversity of fishes, including fishery target species. To what extent, then, do macroalgal habitats contribute to small-scale reef fisheries? address this question we: (1) Quantified the macroalgae-associated fish component catches from 133 fisheries, (2) Compared life-history traits relevant fishing (e.g. gro...
Abstract Offshore petroleum platforms provide habitat utilized by an array of reef fish that are valuable to both commercial and recreational fishers. However, thousands offshore have been decommissioned in the Gulf Mexico over past decade, with many removals being accomplished using explosive severance methods. Here, we estimate impact platform removal on five stocks federally managed based pe...
Factors influencing variability of recruitment in coral reef fishes are of great theoretical and applied interest for population dynamics, oceanography, and fishery management. Due to the complexities of evaluating the many factors influencing recruitment processes throughout the life history of mcroplanktonic organisms, recruitment is often an umbrella-term encompassing interrelated problems i...
Figure 1: The potential effects of bleaching on coral reefs. Image courtesy of G. Roff. Coral reefs are biologically-complex ecosystems that support a wide variety of marine organisms. These are fragile communities under enormous threat from natural and human-based influences. Sea surface temperatures have increased over the past few decades, resulting in widespread coral bleaching at an ever-i...
Many countries worldwide promote artificial reef projects to increase and preserve fishery resources; however, how reefs form fisheries is unclear. Nevertheless, specific hydraulic features of may attract fish. We selected an underwater as a research site clarify this hypothesis. In study, environmental conditions around the were modeled quantitatively assessed using numerical analysis. identif...
A variety of mechanisms exist at the state, territorial, and federal level in the U.S. to protect habitats critical in the development of reef fi sh species. The most recently formulated are the Essential Fish Habitat designations in federal waters, in addition to various National Environmental Policy Act-associated and state-level permitting processes, as well as provisions of the Coastal Zone...
In this paper, we consider empirical studies on fishery production efficiency of Zhoushan new district based on data envelope analysis (DEA)model of three–stage. The results show that environment variables and random factors do have an effect on fishery production of Zhoushan. The increase of urbanization level and the average year of population education are the favorable factors to improve fi...
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