Results 71 to 80 of about 656,262 (207)

Preimpoundment Ichthyofaunal Survey of the Piney Creek Watershed, Izard County, Arkansas [PDF]

open access: yes, 1974
Piney Creek is a clear medium-size tributary of White River in a region of the Ozarks that is undergoing rapid environmental change. Piney Creek is characterized by a very diverse ichthyofauna, although increased sedimentation due to poor agricultural ...
Harp, George L., Matthews, William J.
core   +2 more sources

Diversity of fish habitats

open access: yes, 2017
Habitat is the place where a species lives and its surrounding biotic and abiotic environment. Ecologists seeking to develop explanatory and forecast models have long wondered about this fundamental question: how can the presence of an individual at a given place and time be explained? Indeed, the different fish species are not distributed at random in
openaire   +3 more sources

The effect of long term exploitation by the gill net fishery on the multispecies fish stocks in Kainji Lake, Nigeria, 1969-1997 [PDF]

open access: yes, 1997
The findings are presented of an assessment made of the gillnet fishery in Kainji Lake, Nigeria from 1969 to the present, on the basis of data sets from commercial and experimental gillnet fishing, with the purpose to detect trends in some key fishery ...
Du-Feu, T.A., Seisay, M.D.B.
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Introduction to fish species diversity: Sunamganj haor region within CBRMP's working area [PDF]

open access: yes, 2013
This book is a modest attempt at identifying Sunamganj haor fish species, especially in areas falling under the Sunamganj Community Based Resource Management Project (CBRMP). It contains a total of 126 fish species from 39 families found in the Sunamganj

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Global diversity of fish (Pisces) in freshwater

open access: yesHydrobiologia, 2007
The precise number of extant fish species remains to be determined. About 28,900 species were listed in FishBase in 2005, but some experts feel that the final total may be considerably higher. Freshwater fishes comprise until now almost 13,000 species (and 2,513 genera) (including only freshwater and strictly peripheral species), or about 15,000 if all
/Levêque, Christian   +4 more
openaire   +3 more sources

Strategi Konservasi Habitat Untuk Mempertahankan Keanekaragaman Ikan Di Rawa Lebak Sungairungan, Palangkaraya, Kalimantan Tengah [Habitat Conservation Strategy to Maintain Fish Diversity in the Rungan River Floodplain, Palangkaraya, Central Kalimantan] [PDF]

open access: yes, 2007
The largest fraction of freshwater fish diversity is presented in floodplain ecosystem. Moreover, floodplain fisheries in Kalimantan have an important contribution to local community livelihoods.
Rahardjo, M. F. (M)   +3 more
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The Conservation of Common Carp Genetic Diversity in an Agroecosystem by Indigenous Farmers

open access: yesConservation Letters
The conservation of crop genetic diversity by farmers has been well studied, but little has been documented for farmed fish. Here, we show how indigenous farmers conserve the genetic diversity of a farmed fish species—the common carp (Cyprinus carpio ...
Lufeng Zhao   +9 more
doaj   +1 more source

Taxonomic and Functional Beta Diversity Patterns and Their Driving Factors of the Fish Assemblages Around Marine Islands

open access: yesJournal of Marine Science and Engineering
Beta diversity is an important way to analyze community assembly mechanisms in different habitats or along environmental gradients. However, research on marine fish assemblages around islands has lagged, especially for functional beta diversity.
Guangjie Fang   +7 more
doaj   +1 more source

Genetic Diversity of Flying Fish (Exocoetidae) in Southeast Sulawesi, Indonesia

open access: yesHayati Journal of Biosciences
Flying fish (Exocoetidae) is a pelagic fishery commodity that holds economic value among the people of eastern Indonesia. Flying fish are advantageous as they are abundant in Indonesian sea waters, making them an affordable source of omega-3, which is ...
Indrayani Indrayani   +3 more
doaj   +1 more source

On the Consumer Value of Environmental Diversity [PDF]

open access: yes
This paper develops a methodology for the valuation of the taste for diversity. The concerns about the contribution of diversity in the valuation of consumer goods typically arise when it is believed that the total value is The methodology we propose ...
Jean-Paul Chavas, Michele Baggio
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