Results 1 to 10 of about 68 (62)

Pelagic amphipods (Crustacea, Amphipoda, Hyperiidea) from the southern Gulf of Mexico with notes on the distribution of species [PDF]

Biodiversity Data Journal, 2023
Studies referring the amphipod diversity have been mainly focused on the benthic environment. This study aimed to analye the epipelagic amphipod fauna composition in a sector of the southern Gulf of Mexico (GoM).
Laura Sanvicente-Añorve, Barbara Ramírez-Velázquez, Margarita Hermoso-Salazar   +2 more
doaj   +4 more sources

Phylogeography and molecular diversity of two highly abundant Themisto amphipod species in a rapidly changing Arctic Ocean. [PDF]

Ecol Evol, 2023
This study investigates the genetic diversity, connectivity and population structure of the two abundant pelagic amphipod species Themisto libellula (Figure a) and Themisto abyssorum (Figure b) in the Arctic. This was achieved using DNA sequence variation at the mitochondrial cytochrome c oxidase subunit 1 gene. We show, for the first time, contrasting
Murray A, Præbel K, Desiderato A, Auel H, Havermans C.   +4 more
europepmc   +2 more sources

Contrasting patterns in the occurrence and biomass centers of gravity among fish and macroinvertebrates in a continental shelf ecosystem. [PDF]

Ecol Evol, 2021
Habitat models for marine fish and macroinvertebrates were used to estimate occurrence and biomass center of gravity (COG). The COGs of occupancy and biomass habitat were separated by significant distances and trended over time. These results suggest that climate change forced change in distribution will differentially affect occurrence and biomass of ...
Friedland KD, Smoliński S, Tanaka KR.
europepmc   +2 more sources

First record of Scina nana Wagler, 1926 (Crustacea, Amphipoda, Hyperiidea) in Mediterranean Sea from the northern coastal waters north of Syria (eastern Mediterranean) [PDF]

Biodiversity Data Journal
Global biodiversity repositories, including GBIF, OBIS and the authoritative taxonomic database WoRMS, consistently indicate that Scina nana is a globally rare holoplanktonic amphipod.
Haidar Hasan, Adib Zeini, Wassim Mayya
doaj   +4 more sources

Mass Die-Off Events in Swarming Hyperiid Amphipods: Potential Drivers. [PDF]

Ecol Evol
We investigated mass mortality events of hyperiid amphipods, Anchylomera blossevillei, in the Red Sea during 2023 and 2024. Morphological and molecular analyses ruled out semelparity and thermal stress as causes, with evidence pointing to cyclonic eddies as a potential driver. A global review of hyperiid mass mortality events provided a broader context
Guy-Haim T, Iakovleva A, Farstey V, Lazar A, Ermak K, Morov AR.   +5 more
europepmc   +2 more sources

Seasonal shifts in feeding patterns: Individual and population realized specialization in a high Arctic fish. [PDF]

Ecol Evol, 2019
By taking an alternative approach to dietary analysis, this article challenges the commonly held assumption that polar cod is a generalist predator and argues that it can display strong temporal and geographical dietary specialization. Abstract Species with a broad and flexible diet may be at an advantage in a rapidly changing environment such as in ...
Cusa M, Berge J, Varpe Ø.
europepmc   +2 more sources

First record of the epipelagic Cranocephalus scleroticus (Streets, 1878) (Amphipoda: Hyperiidea) in the Egyptian Mediterranean waters

Egyptian Journal of Aquatic Research, 2023
This study aims to document the first occurrence of the epipelagic amphipod Cranocephalus scleroticus (Streets, 1878) in the Egyptian Mediterranean waters.
Khaled M. Abdelsalam, Howaida Y. Zakaria
doaj   +1 more source

Assessing trophic interactions among three tuna species in the Solomon Islands based on stomach contents and stable isotopes

Frontiers in Marine Science, 2022
Trophic research is essential to the conservation and management of fishery resources. This study analyzed the feeding habits and nutritional interactions among three tuna species in the waters of the Solomon Islands (5°12′S–15°20′S, 157°31′E–172°19′E ...
Ri Jin Jiang, Ri Jin Jiang, Ri Jin Jiang, Fan Yang, Fan Yang, Fan Yang, Fan Yang, Feng Chen, Feng Chen, Feng Chen, Rui Yin, Rui Yin, Rui Yin, Ming Zhi Liu, Ming Zhi Liu, Ming Zhi Liu, Ming Zhi Liu, Wen Bin Zhu, Wen Bin Zhu, Wen Bin Zhu, Ai Guo, Ai Guo, Ai Guo, Lian Wei Liu, Lian Wei Liu, Lian Wei Liu   +25 more
doaj   +1 more source

Hyperiid amphipod communities and the seasonal distribution of water masses in eastern Beibu Gulf, South China Sea

Aquatic Biology, 2014
The species composition and abundance of the planktonic Hyperiidea and their relationship with environmental factors (depth, temperature, salinity, dissolved oxygen, turbidity and chlorophyll a concentration) were analyzed based on 4 seasonal ...
W Zhang, Y Lin, C He, W Cao, J Huang, L Zheng, W Yang, Y Wang   +7 more
doaj   +1 more source

Preemptive Circular Defence of Immature Insects: Definition and Occurrences of Cycloalexy Revisited

Psyche: A Journal of Entomology, Volume 2014, Issue 1, 2014., 2014
Cycloalexy was coined by Vasconcellos‐Neto and Jolivet in 1988 and further defined by Jolivet and collaborators in 1990 in reference to a specific type of circular defence. The term has been applied to numerous organisms, including adult insects, nymphs, and even vertebrates, but has lost precision with the accumulation of anecdotal reports not ...
Guillaume J. Dury, Jacqueline C. Bede, Donald M. Windsor, Jacques Hubert Charles Delabie   +3 more
wiley   +1 more source