Results 71 to 80 of about 17,808 (255)
Environment Conservation Journal, 2011 The present study reveals that the diversity of zooplankton communities in Heggere tank, Kanale varies with the physico-chemical parameters of water. The presence of different zooplankton community indicates the nutrient status of water body.
R. Purushothama +2 more
doaj +1 more source
Maximizing eDNA detections of rare marine organisms: A case study of a delphinid species
Methods in Ecology and Evolution, EarlyView.Abstract Environmental DNA (eDNA) is an emerging tool for surveying marine organisms. Advances in molecular assay designs and bioinformatic methods provide new opportunities for detecting rare species; however, overcoming methodological challenges of rare species detection remains an important obstacle for the widespread deployment of eDNA methods for ...
Nastassia V. Patin +12 more
wiley +1 more source
The superposition method for the reconstruction of food webs
Methods in Ecology and Evolution, EarlyView.Abstract Understanding trophic positions is essential for analysing complex food webs. While calculating these positions can be straightforward when feeding relationships and their proportions are known, determining diet coefficients traditionally requires substantial time and effort.
Ettore Barbieri, Naoto F. Ishikawa
wiley +1 more source
Franklin OpenEco-epidemiological models offer practical demonstrations of non-linear dynamics, enriching the realm of mathematical biology. The importance of viruses in oceanic plankton ecosystems is becoming more widely acknowledged.
Soumita Sen +2 more
doaj +1 more source
PLoS ONE, 2017 A multi-scale approach was used to evaluate which spatial gradient of environmental variability is the most important in structuring zooplankton diversity in the West Spitsbergen Current (WSC).
Marta Gluchowska +6 more
doaj +1 more source
The Zooplankton of Msikaba Estuary [PDF]
Zoologica Africana, 1976 Stratification is well developed in Msikaba estuary and has a major influence on the distribution of the zooplankton. The oligohaline zooplankton component does not become well established, while marine zooplankton organisms penetrate relatively far up the estuary in the high salinity bottom waters.
openaire +2 more sources
The Effects of Nutrient Additions on Kokanee in Dworshak Reservoir, Idaho
Fisheries Management and Ecology, EarlyView.ABSTRACT We investigated the effects of whole reservoir nitrogen (N) addition on kokanee growth in Dworshak Reservoir, Idaho. We hypothesized that N addition would improve the growth of kokanee (Oncorhynchus nerka) at a given level of abundance by increasing the availability of Daphnia, an important food source.
Sean M. Wilson +5 more
wiley +1 more source
Fisheries Management and Ecology, EarlyView.ABSTRACT Derelict fishing gear can negatively affect marine ecosystems through mortality in coastal environments. This study explored the impact of derelict and active crab pots on recreational blue crab (Callinectes sapidus) catch rates and landings in a Mid‐Atlantic estuary by deploying experimental pots in four habitat strata within three sections ...
Randy J. Feris Serrano +5 more
wiley +1 more source
Zooplankton of the Zámecký rybník pond
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2008 Qualitative and quantitative composition of zooplankton was studied on the Zámecký rybník pond. Altogether 73 taxa of zooplankton were determined. The values od zooplankton density ranged between 23–2594 ind.m−2.
Ivo Sukop
doaj +1 more source
Fisheries Oceanography, EarlyView.ABSTRACT We developed and evaluated a fishery‐dependent catch‐per‐unit‐effort (CPUE)‐based proxy index for juvenile Japanese anchovy (Engraulis japonicus) recruitment‐related variability in the southeastern coastal waters of Korea. The proxy was constructed from bimonthly CPUE of the smallest juvenile size class (20–40 mm) in the anchovy drag‐net ...
Jin Yeong Kim +5 more
wiley +1 more source