Results 21 to 30 of about 875 (172)

Increased offspring provisioning by large female fish and consequences for reproductive efficiency. [PDF]

Ecol Evol, 2023
(a) A weighted female total length versus egg diameter trendline (red) supports that larger females produce larger eggs. (b) However, when egg diameter is converted to egg volume (red) and further, number of eggs per mL gonad (blue), it demonstrates an egg size‐fecundity trade‐off.
Koenigbauer ST, Höök TO.
europepmc   +2 more sources

First steps towards mass rearing of European smelt (Osmerus eperlanus, L.) using conventional hatchery equipment

Aquatic Living Resources, 2023
Anadromous European smelt (Osmerus eperlanus) is a keystone species in lake and river ecosystems. In the past and present, stock declines in several of its habitats have been reported. The reasons for this are unclear.
Reiser Stefan, Michels Timo, Illing Björn   +2 more
doaj   +1 more source

Patterns and Processes of Genomic Evolution Inferred From the Ten Smallest Vertebrate Genomes. [PDF]

Adv Sci (Weinh)
By integrating phylogenetic relationships derived from nuclear DNA with population genetic analyses across ten pufferfish species, the genetic differentiation mechanisms underpinning the radiative speciation of the most compact vertebrate genomes has elucidated.
Liu K, Wang Q, Wang N, Meng L, Li S, Wang HY, Liu Y, Liu Q, Zhang Y, Doretto LB, Zhang M, Qin Y, Pan S, Han S, Li W, Liu S, Gao F, Meyer A, Taipale J, Fan G, Schartl M, Zhang J, Shao C.   +22 more
europepmc   +2 more sources

Diversity and Spatiotemporal Distribution of Fish in a Highland Lake in China Based on Environmental DNA Metabarcoding. [PDF]

Ecol Evol
We analyzed water samples from different seasons and locations in Erhai Lake to determine whether eDNA barcoding can effectively show the diversity of fish in such lakes. In the manuscript, we discuss our findings regarding the range of species found, their spatiotemporal distribution, and whether eDNA barcoding gave similar results to traditional ...
Shu L, Ludwig A, Pan H, Lin J, Xu Y, Shan H, Cao T, Peng Z.   +7 more
europepmc   +2 more sources

Bathylagichthys parini (Osmeriformes: Bathylagidae) from Chilean fjords: new morphological data [PDF]

Deep Sea Research Part I: Oceanographic Research Papers, 2003
The northern Mid-Atlantic Ridge, from Iceland to the Azores (MAR), is the largest topographical feature in the Atlantic Ocean. Despite its size, few studies have described dietary patterns of pelagic fishes along the MAR. MAR-ECO, a Census of Marine Life field project, aimed to describe the food web structure of abundant fish species along the ridge ...
Peque��o, Germ��n, Matallanas, Jes��s   +1 more
  +6 more sources

Helminth parasites of alien freshwater fishes in Patagonia (Argentina) [PDF]

, 2018
A survey of the helminth parasites of alien freshwater fishes from Argentinean Patagonia is presented, based on samples taken from 2010 to 2017 and including previous published records.
Flores, Verónica Roxana, Rauque Perez, Carlos Alejandro, Salgado Maldonado, Guillermo, Vega, Rocío Marisol, Viozzi, Gustavo Pedro, Waicheim, María Agustina   +5 more
core   +1 more source

Assessment of listing and categorisation of animal diseases within the framework of the Animal Health Law (Regulation (EU) 2016/429): Bacterial kidney disease (BKD)

EFSA Journal, Volume 21, Issue 10, October 2023., 2023
Abstract Bacterial kidney disease (BKD) was assessed according to the criteria of the Animal Health Law (AHL), in particular the criteria of Article 7 on disease profile and impacts, Article 5 on its eligibility to be listed, Annex IV for its categorisation according to disease prevention and control rules as laid out in Article 9 and Article 8 for ...
EFSA Panel on Animal Health and Welfare (AHAW), Søren Saxmose Nielsen, Julio Alvarez, Paolo Calistri, Elisabetta Canali, Julian Ashley Drewe, Bruno Garin‐Bastuji, José Luis Gonzales Rojas, Christian Gortázar, Mette S Herskin, Virginie Michel, Miguel Ángel Miranda Chueca, Barbara Padalino, Helen Clare Roberts, Hans Spoolder, Karl Ståhl, Antonio Velarde, Arvo Viltrop, Christoph Winckler, James Bron, Niels Jorgen Olesen, Hilde Sindre, David Stone, Niccolò Vendramin, Sotiria Eleni Antoniou, Inma Aznar, Alexandra Papanikolaou, Anna Eleonora Karagianni, Dominique Joseph Bicout   +28 more
wiley   +1 more source

Climate Change Risks to Freshwater Subsistence Fisheries in Arctic Alaska: Insights and Uncertainty from Broad Whitefish Coregonus nasus

Fisheries, Volume 48, Issue 7, Page 295-306, July 2023., 2023
Arctic freshwater ecosystems and fish populations are largely shaped by seasonal and long‐term watershed hydrology. In this paper, we hypothesize how changing air temperature and precipitation will alter freeze and thaw processes, hydrology, and instream habitat to assess potential indirect effects, such as the change to the foraging and behavioral ...
Jason C. Leppi, Daniel J. Rinella, Mark S. Wipfli, Anna K. Liljedahl, Andrew C. Seitz, Jeffrey A. Falke   +5 more
wiley   +1 more source

Pathology associated with larval Eustrongylides sp. (Nematoda: Dioctophymatoidea) infection in Galaxias maculatus (Actinopterygii: Galaxiidae) from Patagonia, Argentina [PDF]

, 2019
Helminth infections within tissues tend to be subjected to a host response that can include encapsulation and melanization to isolate the parasite. The effectiveness of this response depends on the host species. During a survey of parasites of the native
Brugni, Norma Leonor, Guagliardo, Silvia Elizabeth, Viozzi, Gustavo Pedro   +2 more
core   +1 more source

Nuclear DNA content in the red conger eel Genypterus chilensis (Guichenot, 1881) (Actinopterygii: Ophidiidae) [PDF]

, 2012
Los estudios sobre contenido de ADN nuclear en el género Genypterus son escasos, y el presente trabajo entrega por primera vez la estimación del contenido de ADN nuclear de Genypterus chilensis con un valor 2C = 1,0 + 0,06 pg, valor cercano al descrito ...

core   +1 more source