Results 121 to 130 of about 12,325 (255)

Weaponry Investment in the Socially Monogamous Snapping Shrimp Alpheus brasileiro (Decapoda: Alpheidae)

open access: yesActa Zoologica, Volume 107, Issue 4, Page 470-479, October 2026.
ABSTRACT Weapons are morphological structures used by animals in various contexts, especially in intra‐specific contests and visual displays. In snapping shrimps of the genus Alpheus, particularly the monogamous species Alpheus brasileiro, both sexes bear enlarged chelipeds, potentially conferring advantages in mate competition or territorial defence ...
Leonardo Moreira   +3 more
wiley   +1 more source

Activity levels and predator detection by amphipods infected with an acanthocephalan parasite, Pomphorhynchus laevis

open access: yes, 2003
The acanthocephalan parasite Pomphorhynchus laevis (Müller, 1776) uses freshwater amphipods as its intermediate host. In order to complete the life cycle, the infected amphipod must be consumed by a fish, where the acanthocephalan will mature and ...
SAYYAF DEZFULI, Bahram   +2 more
core   +1 more source

Island Invader: Rugulopteryx okamurae and the Challenge for Macaronesian Coasts

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 9, September 2026.
ABSTRACT Since 2015, Rugulopteryx okamurae, a brown seaweed native to the Northwest Pacific, has become one of the most conspicuous marine invaders in the European continental coastal waters. Its recent establishment in the Macaronesian archipelagos (the Azores, Madeira and Canary Islands) has produced significant ecological changes, including ...
Rodrigo Riera   +4 more
wiley   +1 more source

Antidepressants make amphipods see the light

open access: yes, 2017
Published data relating to studies on the effects of antidepressants on amphipods by Alex Ford et ...
Alex Ford
core   +1 more source

A new species of Cymadusa Savigny, 1816 (Crustacea: Amphipoda: Ampithoidae) from northeastern Brazil

open access: yesNauplius
A new species of the amphipod family Ampithoidae Stebbing, 1899 is described from the northeastern Brazilian waters. The new described taxon is grouped in the genus Cymadusa Savigny, 1816, since it presents all the diagnostic characteristics of the genus.
Luiz F. Andrade, André R. Senna
doaj  

On the Larval Sensory Organs and Central Nervous System of the Zoea 1 of the Asian Shore Crab Hemigrapsus sanguineus (Decapoda, Brachyura)

open access: yesJournal of Comparative Neurology, Volume 534, Issue 9, September 2026.
We provide a description of the morphology of selected sensory organs and of the central nervous system in the Zoea 1 of the Asian shore crab Hemigrapsus sanguineus using multiple neuroanatomical methods. Our data reveal well‐developed visual and olfactory organs and complex primary sensory neuropils related to processing this input.
Steffen Harzsch   +12 more
wiley   +1 more source

Metabolism and decompression tolerance of scavenging lysianassoid deep-sea amphipods

open access: yes, 2002
Respiration, ammonia excretion and decompression tolerance were studied in several species of lysianassoid amphipods captured at four stations in the deep Arabian Sea with an isolated trap maintaining them at in situ temperature.
Janssen, Felix   +7 more
core   +1 more source

Functional and Trophic Structuring of Micronektonic Fishes in the Northeast Atlantic

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
Sharp vertical gradients structure the functional and trophic organization of mesopelagic micronektonic fishes, driving a transition from migratory, surface‐linked assemblages in upper layers (0–700 m) to resident communities adapted to deep, low‐light environments (> 700 m).
Hélène Thibault   +7 more
wiley   +1 more source

Results from Experiment 2: Amphipods.

open access: yes, 2018
Foraging rate experimental results indicating consumption by amphipods (G. mucronatus) over 24 (A) and 48 (B) hour experimental durations. Colors represent plants grown under one of 4 different oil conditions: no (white), low (green), medium (yellow ...
Charles W. Martin (234800)   +1 more
core   +1 more source

Differences in Parasite Infection Status and Behavior Between a Clonal Fish and Her Sexually Reproducing Heterospecifics

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
We found that Amazons and Sailfins differed in their qualitative, but not quantitative, resistance to parasites. Amazons had worse qualitative resistance (i.e., were more likely to be infected with at least one parasite) and spent more time in the open, riskier portion of the assay arena. Parasite prevalence and load differed between our two collection
Kirsten Sheehy   +4 more
wiley   +1 more source

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