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pelagic, environment

Reducing the arbitrary: fuzzy detection of microbial ecotones and ecosystems – focus on the pelagic environment

Reducing the arbitrary: fuzzy detection of microbial ecotones and ecosystems – focus on the pelagic environment

... To examine ecosystems and their transitions in the pe- lagic environment, we used fuzzy clustering [46, 47], a technique that creates overlapping sets of clusters. A graphical explanation of the type of output ...

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The food web in the pelagic environment

The food web in the pelagic environment

... As primary food changes in quality along succession, a comparative study of feeding processes and of the organization of the food web in different stages of suc[r] ...

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The colonization of the oceans by calcifying pelagic algae

The colonization of the oceans by calcifying pelagic algae

... in the oceanic realm (Baumann et al., 2004; Broecker and Clark, 2009), and accounted for even more in Neogene sed- iments despite their small size (Suchéras-Marx and Hen- deriks, 2014). Conversely, during the early ...

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Changes in the structure and functionof the North Sea fish foodweb, 1973-2000, and the impacts of fishing and climate

Changes in the structure and functionof the North Sea fish foodweb, 1973-2000, and the impacts of fishing and climate

... North Sea environmental and biological data were analysed to examine 30-year changes in production and consumption in the fish foodweb. The analysis revealed that the demand for secondary production placed on the ...

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Temporal Variation of the Pelagic Copepod Community in Acapulco Bay, México

Temporal Variation of the Pelagic Copepod Community in Acapulco Bay, México

... large concentrations of individuals, under specific environmental conditions [3] [4]. Variations in the abundance, distribution, and interactions within the community of planktonic copepods, are strongly related to the ...

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Eastern Mediterranean biogeochemical flux model – Simulations of the pelagic ecosystem

Eastern Mediterranean biogeochemical flux model – Simulations of the pelagic ecosystem

... From the above it becomes evident that the validation of an ecosystem model forced climatologically in the highly vari- able environment of the Eastern Mediterranean is an open question. To overcome part of the ...

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The mathematical study for mortality coefficients of small pelagic species

The mathematical study for mortality coefficients of small pelagic species

... In this paper, we presents a contribution to the modeling of parapenaeus longirostris fishing on Moroccan coasts. The modeling is based on the knowledge and available data on its dynam- ics and its harvest. We study the ...

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Was total primary production in the western Wadden Sea stimulated by nitrogen loading?

Was total primary production in the western Wadden Sea stimulated by nitrogen loading?

... Although the production estimates derived from the em- pirical relationships as described by Borum and Sand- Jensen (1996) were in good agreement with actual pro- duction rates in the western Wadden Sea during the last ...

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Assessment of Food Supply of Small Pelagic Fish in the Black Sea Based on Their Lipid Content

Assessment of Food Supply of Small Pelagic Fish in the Black Sea Based on Their Lipid Content

... The most abundant small pelagic forage fishes, anchovy Engraulis encrasicolus ponticus and sprat Sprattus sprattus phalericus, are the key fish species in Black Sea food web. They are important grazers of ...

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Characterization of the pelagic plankton assemblage of Lake Matano and determination of factors regulating primary and secondary production dynamics.

Characterization of the pelagic plankton assemblage of Lake Matano and determination of factors regulating primary and secondary production dynamics.

... intermediate disturbance in an apparently homogeneous environment. Tilman (1996) demonstrated a unimodal trend in species diversity with increasing resources. Lewis (1980) demonstrated that the structure and ...

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Organisation in the pelagic ecosystem

Organisation in the pelagic ecosystem

... Now in the steady-state, the total community metabolism, R, should just balance the gross primary production P~ plus the small remaining biomass flux F(wi).. It i[r] ...

7

Bioeconomic Analysis of Small Pelagic Fishery in Central Algeria

Bioeconomic Analysis of Small Pelagic Fishery in Central Algeria

... At the present, fish stock assessments are being carried out by the Algerian ministry of fishing. We are sure that the results of such works will confirm our observations and the best evidence is the increasing ...

8

A review of important concepts in the trophic organization of pelagic ecosystems

A review of important concepts in the trophic organization of pelagic ecosystems

... Trophic structures of plankton communities in areas of high and low fish yields have been characterized as fundamentally different, based on the position of fish [r] ...

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Influence of food organisms on the development and culture of pelagic copepods

Influence of food organisms on the development and culture of pelagic copepods

... Algal concentrations were determined by UTm~M6HL'S method under an inverted mi- croscope (UT~RM6HL 1936). The filtration activity was calculated as the ratio between the[r] ...

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Slow swimming, fast strikes: effects of feeding behavior on scaling of anaerobic metabolism in epipelagic squid

Slow swimming, fast strikes: effects of feeding behavior on scaling of anaerobic metabolism in epipelagic squid

... Within the class Cephalopoda, there are several examples of negative scaling of anaerobic capacity. The gonatid squid Gonatus onyx demonstrates an ontogenetic shift from positive to negative values of b (Hunt and Seibel, ...

7

Developmental defects in pelagic fish embryos from the western Baltic

Developmental defects in pelagic fish embryos from the western Baltic

... T h e early developmental stages usually showed the highest malfor- mation rates (up to 5 1 % in the case of flounder embryos in stage la in 1984}; with progressive developmen[r] ...

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Investigation of Factors Limiting Pelagic Phytoplankton Abundance and Composition in the Ancient Malili Lakes of Indonesia

Investigation of Factors Limiting Pelagic Phytoplankton Abundance and Composition in the Ancient Malili Lakes of Indonesia

... Investigation of Factors Limiting Pelagic Phytoplankton Investigation of Factors Limiting Pelagic Phytoplankton Abundance and Composition in the Ancient Malili Lakes of Abundance and [r] ...

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Ion Replacement as a Buoyancy Mechanism in a Pelagic Deep Sea Crustacean

Ion Replacement as a Buoyancy Mechanism in a Pelagic Deep Sea Crustacean

... Low density is achieved by the replacement of less buoyant ions with ions which reduce density via two mechanisms: a change in total solute mass by the use of ions of lesser mass, and an[r] ...

12

Silurian Myodocopes: Pioneer pelagic ostracods and the chronology of an ecological shift

Silurian Myodocopes: Pioneer pelagic ostracods and the chronology of an ecological shift

... Morphological evidence (from fossil and Recent myodocopes) combined with facies distributional and concomitant faunal evidence (from the Silurian of, for example, Britain, France, [r] ...

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Chemical Composition and Fatty Acid Profile of Small Pelagic Fish  (Amblygaster sirm and Sardinella gibbosa) from Muara Angke, Indonesia

Chemical Composition and Fatty Acid Profile of Small Pelagic Fish (Amblygaster sirm and Sardinella gibbosa) from Muara Angke, Indonesia

... ‘small pelagic fishes’ refers to diverse group of mainly planktivorous fishes that share the same habitat, the surface layers of the water column, usually above the continental shelf and in waters not exceeding ...

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