Results 71 to 80 of about 4,200 (238)

Assessing the Complex Effects of the Invasive Amphipod Dikerogammarus villosus on Leaf Litter Breakdown in Rivers

open access: yesFreshwater Biology, Volume 70, Issue 2, February 2025.
ABSTRACT Allochthonous organic matter is an essential resource of aquatic food webs, and freshwater amphipods, particularly species of the genus Gammarus, play a significant role in leaf litter decomposition. However, this important ecological function may be affected by the invasion of alien amphipods such as Dikerogammarus villosus, which has been ...
Tomislav Kralj   +5 more
wiley   +1 more source

Marked Variability in Distance‐Decay Patterns Suggests Contrasting Dispersal Ability in Abyssal Taxa

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 1, January 2025.
ABSTRACT Aim We assess the role of spatial distance and depth difference in shaping beta diversity patterns across abyssal seascape regions. We measured the decrease of faunistic similarity across the northeast Pacific seafloor, to test whether species turnover rates differ between deep and shallow‐abyssal biogeographical provinces and whether these ...
Erik Simon‐Lledó   +11 more
wiley   +1 more source

Genetic divergence of tanaidaceans (Crustacea: Peracarida) with low dispersal ability

open access: yesScientia Marina, 2014
In this study, the phylogeographic patterns of nuclear, ribosomal and mtDNA gene fragments of five tanaidacean species (Zeuxo, Tanaidae) from the Atlantic, Pacific and Mediterranean Sea were investigated. We aimed to interpret results in the framework of current hypotheses on the distribution of small invertebrates with very limited dispersal ability ...
Kim Larsen, Elsa Froufe, Fernando Tuya
openaire   +6 more sources

Especie nueva de Rhachotropis (Amphipoda: Eusiroidea) del estrecho de la Florida y el mar Caribe

open access: yesNovitates Caribaea
Se describe una especie nueva de anfípodo de aguas profundas del género Rhachotropis. El material estudiado fue recolectado en localidades del estrecho de la Florida y el mar Caribe por los buques de investigación B/I Pillsbury y B/I Gerda en 1968 y 1969.
Carlos Varela, Manuel Ortiz
doaj   +1 more source

Pseudotanais Sars, 1882 (Crustacea: Tanaidacea) From the SE Australian Slope: A Gap in Our Knowledge

open access: yesFrontiers in Marine Science, 2021
In the current paper, we present the description of five new species of pseudotanaids sampled off the Bass Strait during two campaigns (SLOPE), which took place in 1986/8 and 1994 from the upper continental margin (slope) at depths 200–1550 m, hopefully ...
Magdalena Błażewicz   +2 more
doaj   +1 more source

Faunal Composition of the Sumisu Caldera Hydrothermal Vent Field as a Key Baseline for Conservation in Light of Deep‐Sea Mining

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 11, November 2024.
ABSTRACT Hydrothermal vents are biodiversity hotspots on the deep seafloor powered by chemosynthetic primary production, inhabited by a specially adapted fauna whose composition varies between regions. Sumisu Caldera, located approximately 500 km south of Tokyo, hosts a hot vent with an unusual species composition among the Izu–Ogasawara Arc sites and ...
Chong Chen   +6 more
wiley   +1 more source

A New Species of Cyphocaris Boeck, 1871 (Amphipoda: Lysianassoidea: Cyphocarididae): Found off the Rocas Atoll, Northeastern Brazil

open access: yesTaxonomy, 2021
A new species of the genus Cyphocaris Boeck, 1871, is described. The material examined was collected during the “Acoustics along the Brazilian Coast” (Abraços 1) project, by micronektonic trawls at a targeted depth of 525 m, off the Rocas Atoll, Rio ...
Luiz F. Andrade   +3 more
doaj   +1 more source

Grandidierella bonnieroides Stephensen, 1948 (Amphipoda, Aoridae)-first record of an established population in the Mediterranean Sea [PDF]

open access: yes, 2016
The first record in the Mediterranean Sea of the invasive aorid amphipod crustacean Grandidierella bonnieroides is presented. A widespread circumtropical species, recorded off the Saudi coast of the Arabian Gulf, the Red Sea and the Suez Canal, it may ...
Galil, B.   +3 more
core   +1 more source

A beautifully preserved comma shrimp (Pancrustacea: Peracarida) from the Plio‐Pleistocene of Japan and the fossil record of crown Cumacea

open access: yesInvertebrate Biology, Volume 143, Issue 3, September 2024.
Abstract Comma shrimp, or cumaceans, are diverse benthic crustaceans, yet they are one of the groups with the poorest fossil record, hindering our understanding of the evolution of the group in deep time. Here, we describe a new species of fossil comma shrimp, Makrokylindrus itoi sp. nov., from the Plio‐Pleistocene of Japan.
Javier Luque, Sarah Gerken
wiley   +1 more source

Species of marine Isopoda (Crustacea, Peracarida) from southern Brazil [PDF]

open access: yesBrazilian Journal of Oceanography, 1972
Some species of marine Isopoda collected in southern Brazil mostly in shallow-water and amongst seaweeds are studied. Five species are discussed and illustrated. A diagnosis is given for each species. Idotea metallica and Synidotea marplatensis are new oc currences for the area, and both have had their geographical range extended to off Rio de Janeiro.
openaire   +4 more sources

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