Results 61 to 70 of about 13,887 (232)

Microsporidian Parasites Found in the Hemolymph of Four Baikalian Endemic Amphipods. [PDF]

PLoS ONE, 2015
At present, approximately 187 genera and over 1300 species of Microsporidia have been described, among which almost half infect aquatic species and approximately 50 genera potentially infect aquatic arthropods.
Ekaterina V Madyarova, Renat V Adelshin, Mariya D Dimova, Denis V Axenov-Gribanov, Yulia A Lubyaga, Maxim A Timofeyev   +5 more
doaj   +1 more source

Embryonic and larval development of the endangered Chiapas killifish Tlaloc hildebrandi (Cyprinodontiformes: Profundulidae)

Journal of Fish Biology, EarlyView.
Abstract The early ontogeny of endemic freshwater fishes provides essential baseline biological information for conservation and management, particularly in species with restricted distributions and high vulnerability to habitat degradation, environmental change and population decline. This study presents the first detailed description of embryonic and
Rubén Alonso Contreras‐Tapia, Gabriela Garza‐Mouriño, María Elena Castellanos‐Páez, Marcela Ivonne Benítez‐Díaz Mirón, Jairo Arroyave, Alfonso Ángel González‐Díaz, Wilfredo A. Matamoros   +6 more
wiley   +1 more source

III. On a new genus of amphipod crustaceans [PDF]

Proceedings of the Royal Society of London, 1873
Abstract In lat. 35° 47‘, long. 8° 23‘, off Cape St. Vincent, the trawl was sent down to a depth of 1090 fathoms on the 28th of January, and brought up, among other very interesting things, a large transparent Amphipod with enormous faceted eyes.
openaire   +2 more sources

UV Sensitivities of Two Littoral and Two Deep-Freshwater Amphipods (Amphipoda, Crustacea) Reflect Their Preferred Depths in the Ancient Lake Baikal

Biology
Solar ultraviolet (UV) is among the most important ecological factors shaping the composition of biota on the planet’s surface, including the upper layers of waterbodies.
Elizaveta Kondrateva, Anton Gurkov, Yaroslav Rzhechitskiy, Alexandra Saranchina, Anastasiia Diagileva, Polina Drozdova, Kseniya Vereshchagina, Zhanna Shatilina, Inna Sokolova, Maxim Timofeyev   +9 more
doaj   +1 more source

Combined impact of ultraviolet radiation and increased nutrients supply: A test of the potential anthropogenic impacts on the benthic amphipod Amphitoe valida from Patagonian waters (Argentina)

Frontiers in Environmental Science, 2014
Experiments were conducted during the Austral Summer of 2014 to determine the effects of increased nutrient input and ultraviolet radiation (UVR) on the food consumption rate (FCR) and food preference in the amphipod Amphitoe valida.
Macarena S. Valiñas, Macarena S. Valiñas, Paula eBermejo, Lara eGalbán, Luciana eLaborda, Donat P. Häder, Virginia E. Villafañe, Virginia E. Villafañe, E. Walter eHelbling, E. Walter eHelbling   +9 more
doaj   +1 more source

Winter feeding during the spawning migration of capelin north of Iceland

Journal of Fish Biology, EarlyView.
Abstract Winter feeding during the spawning migration of capelin is often assumed to be minimal, because energy is allocated to reproduction. However, January–February surveys north of Iceland in 2018 and 2019 showed that prey occurred in 64% and 62% of 423 stomachs examined, respectively. Copepods (Calanus spp.) and euphausiids dominated the diet, and
Hildur Petursdottir, Teresa Silva, Sigurdur Th. Jonsson, Warsha Singh   +3 more
wiley   +1 more source

Abundance, distribution and feeding patterns of a temperate reef fish in subtidal environments of the Chilean coast: the importance of understory algal turf Abundancia, distribución y patrones alimentarios de un pez de arrecifes templados en ambientes submareales de la costa de Chile: la importancia de la capa de algas del subdosel

Revista Chilena de Historia Natural, 2002
Cheilodactylus variegatus is an abundant carnivorous demersal reef fish that lives in the shallow subtidal of the north-central Chilean coast. Characteristically, these environments are dominated by kelp forests of Lessonia trabeculata.
ÁLVARO T. PALMA, F. PATRICIO OJEDA
doaj  

Development of a Multiplex Polymerase Chain Reaction Assay for Differentiating Three Lactococcus Species Associated With Piscine Lactococcosis

Journal of Fish Diseases, EarlyView.
ABSTRACT Piscine lactococcosis is an important bacterial disease of farmed fish. The causative agents, Lactococcus garvieae, Lactococcus petauri and Lactococcus formosensis, are closely related, which complicates species‐level identification. We developed a conventional multiplex PCR assay targeting species‐specific genes identified by comparative ...
Tomoaki Yoshino, Tomokazu Takano, Hiroki Tanno, Yukihiro Nakagawa, Yuta Matsuura, Shogo Harakawa, Hidehiro Kondo, Ikuo Hirono, Keiichiro Koiwai, Tomomasa Matsuyama   +9 more
wiley   +1 more source

Are Amphipod invaders a threat to the regional biodiversity? Conservation prospects for the Loire River [PDF]

, 2010
The impact of invasions on local biodiversity is well established, but their impact on regional biodiversity has so far been only sketchily documented.
Piscart, Christophe, Lafaille, Pascal, Bergerot, Benjamin, Marmonier, Pierre, Laffaille, Pascal   +4 more
core   +1 more source

Vicariance and dispersal in the Aegean Archipelago: Molecular phylogeography reveals the origin and divergence times of Hydropsyche (Trichoptera: Hydropsychidae) species

Journal of Systematics and Evolution, EarlyView.
Divergence times of Greek Hydropsyche lineages fall mostly within the Pliocene‐Pleistocene, rejecting ancient vicariance. Widespread species show shallow divergences consistent with dispersal, while island endemics exhibit deeper isolation patterns supporting a mixed vicariance‐dispersal model.
Anastasia Lampou, Paraskevi Niki Lampri, Cesc Múrria, Ioannis Karaouzas, Nikolaos Skoulikidis, Núria Bonada   +5 more
wiley   +1 more source