Results 51 to 60 of about 74,365 (274)

Sampling effort to characterize estuarine macroinfaunal communities in patchy habitats

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Estuarine benthic macroinfauna have aggregated, patchy distributions, making accurate community measurements dependent upon sampling scales. The purpose of this study is to determine the appropriate core sizes and sampling effort needed to characterize benthic infaunal communities in Corpus Christi Bay, Texas, USA.
Paul A. Montagna
wiley   +1 more source

MACROINVERTEBRATES COMPOSITION IN THE BLIZNEC STREAM, SECOND AND THIRD MAKSIMIR LAKE [PDF]

open access: yesCroatian Journal of Fisheries, 2004
Qualitative and quantitative macroinvertebrates in spring period was investigated during two years in the first and second Maksimir Lake and Bliznec stream. The domination of Gastropoda was outstanding at these three investigated sites. From time to time
Marina Piria   +2 more
doaj  

Revision of Dadagulella gen. nov., the “Gulella radius group” (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies [PDF]

open access: yes, 2013
The genus Dadagulella gen. nov. is described to include 16 species of small, dentate, ovateacuminate Afrotropical snails. An identification key is provided and biogeography, anatomy and systematics are discussed. The type species is the Kenyan D. radius (
Rowson, Ben, Tattersfield, Peter
core   +3 more sources

Benthic megafauna and the functioning of macroalgal forests and urchin barrens

open access: yesOikos, EarlyView.
Two temperate rocky reef food‐web models, representing the trophic diversity of the Mediterranean rocky reef communities, were built for the two stable states: macroalgal forests and barren grounds, which are characterized by opposite amounts of erect macroalgal biomass.
Chiara Bonaviri   +18 more
wiley   +1 more source

Growth of the purple dye murex, Bolinus brandaris (Gastropoda: Muricidae), marked and released in a semi-intensive fish culture earthen pond

open access: yesScientia Marina, 2012
The present study reports the growth rate of the purple dye murex, Bolinus brandaris (Gastropoda: Muricidae), estimated from mark-recapture experiments.
Paulo Vasconcelos   +4 more
doaj   +1 more source

Espècie nova del gènere Moitessieria (Gastropoda: Moitessieriidae) per a Catalunya, Espanya [PDF]

open access: yes, 2019
A new species of the genus Moitessieria Bourguignat, 1863 from Catalonia (Spain) is described, found in sediments from a spring in Sant Joan les Fonts (Girona).
Quiñonero Salgado, Sergio   +1 more
core  

Pendugaan Dampak Pencemaran Tributyltin Menggunakan Gejala Imposeks Pada Gastropoda Di Perairan Bitung, Sulawesi Utara [PDF]

open access: yes, 2017
Perairan Bitung, Sulawesi Utara, memiliki aktifitas perkapalan yang memungkinkan perairan tersebut terkontaminasi dengan polutan senyawa tributyltin. Oleh karena itu, perlu dilakukan penelitian untuk mengetahui gejala imposeks dan mendeteksi kandungan ...
Lasut, M. (Markus)   +2 more
core   +2 more sources

Catchment conversion to agriculture alters freshwater macroinvertebrate community responses to flow disturbance: results from a replicated in‐stream experiment

open access: yesOikos, EarlyView.
Anthropogenic stressors often co‐occur in ecosystems, but their combined impacts are rarely assessed using field experiments. Press disturbances particularly can reshape community dynamics, altering their capacity to withstand or recover from acute pulse disturbances by modifying response diversity.
Bridget E. White   +6 more
wiley   +1 more source

Karyotypes of two European species of the genus Lymnaea with disputable taxonomic status (Gastropoda: Pulmonata: Lymnaeidae) [PDF]

open access: yes, 2002
Karyotypes of Lymnaea corvus and L. occulta are studied for the first time and compared to the original data on Ukrainian populations of L. palustris and L. stagnalis.
Garbar, А. V., Kornіushіn, А. V.
core  

Potential Impacts of Low Flows on Fish Foodscapes and Production in a Braided River

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Changes in river discharge affect the physical composition and connectivity of habitats which, in turn, may shape the spatial distribution of fish food abundance, accessibility and quality—the ‘foodscape’—of river ecosystems. However, the influence of river flows on fish foodscapes has received very little attention from scientists. We studied
Rick J. Stoffels   +11 more
wiley   +1 more source

Home - About - Disclaimer - Privacy