Results 31 to 40 of about 18,201 (231)

Beytepe Göleti’ndeki Zooplanktonun Mevsimsel Kompozisyonu Üzerine Bir Araştırma

Journal of Agricultural Sciences, 2002
Bu çalışmada, Ankara-Beytepe Göleti’ndeki zooplanktonun mevsimsel kompozisyonu ve ortalama bollukları incelenmiştir. Zooplankton örnekleri Temmuz 1998-Mayıs 1999 periyodunda mevsimsel olarak alınmıştır.
Sibel Korkmaz
doaj   +1 more source

Daphnia O. F. Müller, 1785 (Crustacea: Branchiopoda: Anomopoda) species of Iran: Morphology and Identification [PDF]

Iranian Journal of Animal Biosystematics, 2017
Daphnia a wide spread member of Cladocera live in different aquatic environments ranging from hypersaline swamps to freshwater lakes, lagoons, streams and rivers.
ali mohammadyari, Fereshteh Ghasemzadeh, Omid Mirshamsi, Mansour Aliabadian, Behrooz Atashbar   +4 more
doaj   +1 more source

Crustaceans of Wrangel Island (Russia): species composition, community structure and variability

Nature Conservation Research: Заповедная наука, 2020
High-latitude aquatic ecosystems and the communities inhabiting them are the key sites for environmental research and observations of global climate changes.
Anna А. Novichkova, Elena S. Chertoprud
doaj   +1 more source

The distribution of estuarine fish larvae: nutritional condition and co-occurrence with predators and prey [PDF]

, 2000
Fish larvae were collected monthly between March and September 1997 in the Mira and Guadiana estuaries (southern Portugal). Hydrological parameters were registered and zooplankton samples were obtained simultaneously. Densities of fish larvae (ind.100 m(-
Antunes, Baier, Bailey, Bain, Battini, Bergeron, Blaxter, Brodeur, Buckley, Bulow, Bulow, Buskey, Caldarone, Canino, Canino, Chícharo, Chícharo, Chícharo, Conover, Conway, Costa, Crecco, Crecco, Crecco, DeVries, Eduardo Esteves, Esteves, Ferreira, Fives, Fortier, Frank, Frank, Frank, Hjort, Hjort, Holmes, Houde, Houde, Hugie, Hunter, Hunter, Hunter, J.Pedro Andrade, Knox, Lasker, Laurence, M.Alexandra Chícharo, Martin, Matsakis, McGurk, Mclusky, Moller, Newell, Omori, Palmer, Palomera, Pepin, Pestana, Peterson, Purcell, Purcell, Robinson, Russell, Ré, Ré, Saville, Scheidegger, Schneider, Sinclair, Sinclair, Smith, Snedecor, SPSS, Stein, Suthers, Taggart, Teresa Pina, Thiel, Todd, Turner, van der Veer, Wyatt, Zar   +82 more
core   +2 more sources

Disentangling the Drivers of a Piscivorous Intra‐Annual Cohort and the Contributions of Three Cohorts to Early‐Year Class Strength in Pikeperch (Sander lucioperca)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Using pikeperch (Sander lucioperca) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength.
Million Tesfaye, Tomáš Jůza, Marek Šmejkal, Katerina Soukalová, Daniel Bartoň, Petr Blabolil, Martin Čech, Josef Hejzlar, Marie Prchalová, Milan Muška, Michal Tušer, Luboš Kočvara, Zuzana Sajdlová, Vladislav Draštík, Carlos Martinez, Karlos Ribeiro de Moraes, Milan Říha, Mojmír Vašek, Radka Symonová, Marek Brabec, Jan Kubečka, Allan T. Souza   +21 more
wiley   +1 more source

Varying degradation of subfossil Daphnia longispina during the past 250 years and the discovery of fossil helmet-type head shields: preliminary results

Advances in Oceanography and Limnology, 2016
Zooplankton are regarded as a good indicator of environmental change, but comprehensive monitoring programs including  zooplankton are uncommon and only rarely extend over longer periods of time.
Jaakko Johannes Leppänen, Jan Weckström   +1 more
doaj   +1 more source

Mycosporine-Like Amino Acids (MAAs) in Zooplankton

Marine Drugs, 2020
Organisms have different adaptations to avoid damage from ultraviolet radiation and one such adaptation is the accumulation of mycosporine-like amino acids (MAAs).
Samuel Hylander
doaj   +1 more source

Aquatic Invertebrates of the Devereux Slough - 2018 [PDF]

, 2020
In 2018, the hardscape construction of NCOS (North Campus Open Space), a restored wetland on the Northern border of COPR (Coal Oil Point Reserve), was completed, thus approximately doubling the overall size of the wetland and offering the rather unique ...
Peng, Victoria, Reagh, Cristal, Senesac, Steve   +2 more
core  

Decadal Rapid Change in Energetic Carrying Capacity for Juvenile Chum Salmon in the Sanriku Coast

Fisheries Oceanography, EarlyView.
ABSTRACT Adult returns to coastal rivers in Sanriku, located near the southernmost area of chum salmon distribution, have declined since 2010. Climate‐induced fluctuations in juvenile prey availability may affect growth and survival, which are linked to adult returns.
Yuki Iino, Yuichi Shimizu, Tomoki Sato, Takashi Kitagawa   +3 more
wiley   +1 more source

Invertebrate communities in northern Lake Victoria, with reference to their potential for fishery production [PDF]

, 1999
The zooplankton and macrobenthic communities of Lake Victoria were sampled by lift net and Ponar grab, respectively. The zooplankton comprised copepods and cladocerans, rotifers and aquatic insect larvae. Most taxa exhibited wide distribution in the lake,
Kiggundu, V., Ndawula, L.M., Ochieng, H.
core