Results 41 to 50 of about 213,664 (309)
Vertical diel dynamic of fish assemblage associated with an artificial reef (Northern Adriatic Sea)
Scientia Marina, 2007 The vertical diel activity of a fish assemblage inhabiting the Senigallia artificial reef (northern Adriatic Sea, Italy) was evaluated from July to November 1996 using enhanced hydroacoustic techniques. Extensive seabed mapping of the area was done using
Antonello Sala +2 more
doaj +1 more source
Spatial Distribution and Abundance of Mesopelagic Fish Biomass in the Mediterranean Sea
Frontiers in Marine Science, 2020 Mesopelagic fish, being in the middle of the trophic web, are important key species for the marine environment; yet limited knowledge exists about their biology and abundance.
Morane Clavel-Henry +5 more
doaj +1 more source
Journal of Marine Science and Engineering, 2022 Spatially explicit information on coral fish species abundance and distribution is required for effective management. Nonextractive techniques, including echosounders and video census, can be particularly useful in marine reserves where the use of ...
Marcela Montserrat Landero Figueroa +3 more
doaj +1 more source
The importance of habitat quality for marine reserve fishery linkages [PDF]
, 2003 We model marine reserve - fishery linkages to evaluate the potential contribution of habitat-quality improvements inside a marine reserve to fish productivity and fishery catches.
Barbier, E B +3 more
core +1 more source
Feeding Nile tilapia with artificial diets and dried bioflocs biomass
Acta Scientiarum: Animal Sciences, 2015 The effects of supplying dried bioflocs biomass to Nile tilapia juveniles were investigated in the present work. Fish were stocked in experimental rearing tanks for eight weeks. Selected variables of water quality, growth performance and effluent quality
Nayara Nunes Caldini +3 more
doaj +1 more source
Land use, associated eel production, and abundance of fish and crayfish in streams in Waikato, New Zealand [PDF]
, 1997 The density and biomass of fish and crayfish, and the production of eels, was compared among streams in native forest, exotic forest, and pasture. Populations were estimated by multiple-pass electroshocking at 11 sites in hill-country streams in the ...
Cairns D., Hicks B. J., Hopkins C. L.
core +2 more sources
Biomass spectra in benthic fish assemblages in the Benguela System [PDF]
Marine Ecology Progress Series, 1996 6 páginas, 1 figura, 2 tablas. Biomass spectra in the different benthic fish assemblages at depths between 100 and 800 m off the coast of Namibia were studied over a period of 3 yr These assemblages were located in areas spanning active upwelling centres on the shelf and zones of lower productivity on the lower slope.
Macpherson, Enrique, Gordoa, Ana
openaire +2 more sources
Известия ТИНРО, 2023 Spatial distribution, abundance and biomass of fish species, cephalopods and jellyfishes are determined in the epipelagic layer on the data of trawl surveys conducted with RV TINRO and RV Professor Kaganovsky in the Pacific waters at Kuril and Commander ...
A. N. Starovoitov, S. S. Ponomarev
doaj +1 more source
Alien Marine Fishes Deplete Algal Biomass in the Eastern Mediterranean
PLoS ONE, 2011 One of the most degraded states of the Mediterranean rocky infralittoral ecosystem is a barren composed solely of bare rock and patches of crustose coralline algae. Barrens are typically created by the grazing action of large sea urchin populations. In 2008 we observed extensive areas almost devoid of erect algae, where sea urchins were rare, on the ...
Enric Sala +3 more
openaire +5 more sources
Dominance determines fish community biomass in a temperate seagrass ecosystem [PDF]
Ecology and Evolution, 2019 AbstractBiodiversity and ecosystem function are often correlated, but there are multiple hypotheses about the mechanisms underlying this relationship. Ecosystem functions such as primary or secondary production may be maximized by species richness, evenness in species abundances, or the presence or dominance of species with certain traits.
Aaron M. Eger +2 more
openaire +4 more sources