Results 121 to 130 of about 29,926 (256)

Freshwater crabs from the highlands of the Venezuelan Guayana

open access: yes, 2022
Neotropical freshwater crabs have a wide distribution range from southern Mexico to Peru, including the entire Amazon basin and the Guianas. Among them, highland species of the genus Microthelphusa Pretzmann, 1968, have a very peculiar biogeography. Their distribution is insular and discontinuous, presenting considerable separation between them. Twelve
openaire   +2 more sources

Optimizing Carbon Sources in Biofloc Technology for Sustainable Aquaculture: A Meta‐Analytical Review

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 3, June 2026.
ABSTRACT Aquaculture intensification is increasingly constrained by high water demand, nutrient‐rich effluents and disease risk, increasing interest in biofloc technology (BFT) as a waste‐recycling, low‐exchange production model. However, BFT performance depends strongly on the carbon source used to adjust the carbon‐to‐nitrogen (C/N) ratio and ...
Mavindu Muthoka   +6 more
wiley   +1 more source

The systematic and biogeographical status of Fredius reflexifrons (Ortmann, 1897) and Fredius fittkaui (Bott, 1967) (Crustacea: Brachyura: Pseudothelphusidae) from the Amazon and Atlantic Guianas River basins [PDF]

open access: yesActa Amazonica, 2002
There is considerable confusion in the literature regarding the systematic position and distribution of two pseudothelphusid crabs originally described as Potamocarcinus reflexifrons Ortmann, 1897 and Potamocarcinus reflexifrons fittkaui Bott, 1967, and ...
Célio MAGALHÃES, Gilberto RODRÍGUEZ
doaj  

Lethal grip for an endangered endemic frog: The freshwater crab Potamon karpathos (Decapoda, Potamidae) preys on Karpathos water frog Pelophylax cerigensis (Anura, Ranidae) [PDF]

open access: yesHerpetozoa
Invertebrate predation on amphibians is widespread, although unreported in Europe. Here, we present documented predation of the Karpathos water frog (Pelophylax cerigensis) by the crab Potamon karpathos.
Apostolos Christopoulos   +4 more
doaj   +3 more sources

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1091-1119, June 2026.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

Science-based restoration monitoring of coastal habitats, Volume One: A framework for monitoring plans under the Estuaries and Clean Waters Act of 2000 (Public Law 160-457) [PDF]

open access: yes, 2003
Executive Summary: The Estuary Restoration Act of 2000 (ERA), Title I of the Estuaries and Clean Waters Act of 2000, was created to promote the restoration of habitats along the coast of the United States (including the US protectorates and the Great ...
Bellmer, Russell J.   +9 more
core  

The spread of non‐native species

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1197-1234, June 2026.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

A tribute to Michael Türkay (3 April 1948 - 9 September 2015): contributions and legacy of a lifelong study on New World decapods, and personal impressions

open access: yesNauplius
Prof. Dr. Michael Türkay, curator of Crustacea in the Senckenberg Research Institute and Natural History Museum, unexpectedly passed away on 9th September 2015 in Frankfurt am Main, Germany.
Célio Magalhães
doaj   +1 more source

Investment potentials in shellfish culture in Nigeria [PDF]

open access: yes, 1987
Shellfish are a major but cheap protein source for human consumption as well as source of income for coastal towns and villages of the Niger Delta in Rivers State, Cross River, and Lagos States. A research into the nutritive value of some of these marine
Fineman-Kalio, A.S.
core  

The impacts of biological invasions

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1255-1310, June 2026.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

Home - About - Disclaimer - Privacy