Results 21 to 30 of about 27,844 (268)

Gonadal development and hermaphroditism of bluespotted seabream, Pagrus caeruleostictus (Valenciennes, 1830) from the Mediterranean Sea, Egypt

open access: yesEgyptian Journal of Aquatic Research, 2018
The bluespotted seabream Pagrus caeruleostictus represents one of the commercially significant Sparidea fish; however, studies on its reproduction are scarce.
Rania F. Ismail   +2 more
doaj   +1 more source

Remote Predictions of Mahi-Mahi (Coryphaena hippurus) Spawning in the Open Ocean Using Summarized Accelerometry Data

open access: yesFrontiers in Marine Science, 2021
Identifying complex behaviors such as spawning and fine-scale activity is extremely challenging in highly migratory fish species and is becoming increasingly critical knowledge for fisheries management in a warming ocean.
Lela S. Schlenker   +10 more
doaj   +1 more source

Riverscape heterogeneity in estimated Chinook Salmon emergence phenology and implications for size and growth

open access: yesEcosphere, 2022
Many salmonid‐bearing rivers exhibit thermal and hydrologic heterogeneity at multiple spatial and temporal scales, but how this translates into spatiotemporal patterns of fry emergence is poorly understood.
Matthew J. Kaylor   +4 more
doaj   +1 more source

Thermal heterogeneity, migration, and consequences for spawning potential of female bull trout in a river–reservoir system

open access: yesEcology and Evolution, 2020
The likelihood that fish will initiate spawning, spawn successfully, or skip spawning in a given year is conditioned in part on availability of energy reserves.
Joseph R. Benjamin   +2 more
doaj   +1 more source

Aquaculture Breeding Enhancement: Maturation and Spawning in Sea Cucumbers Using a Recombinant Relaxin-Like Gonad-Stimulating Peptide

open access: yesFrontiers in Genetics, 2019
Wild sea cucumber resources have been rapidly exhausted and therefore there is an urgent need to develop approaches that will help restocking. Currently, there is a lack of information regarding the genes involved in sea cucumber reproductive processes ...
Hoang Dinh Chieu   +10 more
doaj   +1 more source

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

Unveiling the Relationship Between Sea Surface Hydrographic Patterns and Tuna Larval Distribution in the Central Mediterranean Sea

open access: yesFrontiers in Marine Science, 2021
Thunnus thynnus (Atlantic bluefin tuna, ABT) and other tuna species reproduce in the Mediterranean Sea during the summer period. Despite the Central Mediterranean Sea, the Strait of Sicily in particular, being a key spawning site for many tuna species ...
Stefania Russo   +7 more
doaj   +1 more source

The influence of eyestalk ablation on the reproduction of the freshwater Macrobrachium acanthurus shrimp in captivity - doi: 10.4025/actascibiolsci.v32i3.3911

open access: yesActa Scientiarum: Biological Sciences, 2010
Macrobrachium acanthurus is distributed along the Brazilian coastal rivers and shows potential for aquaculture. This study was carried out to provide information on the reproduction of M.
Cristiane Honorato Cunha   +1 more
doaj   +1 more source

A Simulation of Entrepreneurial Spawning [PDF]

open access: yesJournal of Artificial Societies and Social Simulation, 2017
This paper describes how patterns of industrial clustering arise with respect to the size of an initial firm when measured in terms of innovation.
openaire   +2 more sources

Reproductive biology of the island grouper (Mycteroperca fusca) in the Canary Islands, northwest coast of Africa

open access: yesScientia Marina, 2010
This is the first time that the reproductive characteristics of Mycteroperca fusca have been analyzed over the whole area of its distribution, using the parameter of the histological analysis of the gonads.
Rocío Bustos   +2 more
doaj   +1 more source

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