Results 61 to 70 of about 4,513 (193)

Direct effects and prey‐mediated effects of global change in projections of early life stages of pelagic predators

open access: yesEcography, Volume 2025, Issue 11, November 2025.
Global change will impact the distribution and abundance of predators through a combination of abiotic variables, such as temperature; and biotic variables, such as prey availability. However, there is a poor understanding of how distribution projections with biotic variables differ from those with abiotic variables, particularly in resource‐limited ...
Raymond Czaja   +4 more
wiley   +1 more source

Fastest Fish Shapes and Optimal Supercavitating and Hypersonic Bodies of Revolution

open access: yesInnovative Biosystems and Bioengineering, 2020
Background. The best swimmers have a streamlined shape that provides a flow pattern without boundary layer separation and delays the laminar-to-turbulent transition. Their shape itself could be the reason of small drag and high locomotion velocity.
Igor Nesteruk
doaj   +1 more source

A review of the Japanese longline fishery for tunas and billfishes in the eastern Pacific Ocean, 1993-1997 [PDF]

open access: yes, 2003
English: This report reviews the Japanese longline fishery in the eastern Pacific Ocean during the 1993-1997 period, extending the studies for the 1956-1992 period made by other investigators.
Bayliff, William H., Okamoto, Hiroaki
core  

From reels to research: Motivations and concerns of billfish citizen science participants

open access: yesPeople and Nature, Volume 7, Issue 11, Page 2956-2970, November 2025.
Abstract Citizen science facilitates cost‐effective ecological data collection at much larger scales than would otherwise be feasible. This is particularly useful for the study of highly migratory species with broad distributions, such as billfishes.
Laura M. Smith   +6 more
wiley   +1 more source

Surface mucous as a source of genomic DNA from Atlantic billfishes (Istiophoridae) and swordfish (Xiphiidae) [PDF]

open access: yes, 2009
Procedures for sampling genomic DNA from live billfishes involve manual restraint and tissue excision that can be difficult to carry out and may produce stresses that affect fish survival.
Bernard, Andrea M.   +6 more
core   +1 more source

Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico

open access: yesCiencias Marinas, 2012
The sailfish Istiophorus platypterus is abundant in tropical coastal areas of the Pacific Ocean. It is targeted by both sport-fishing and commercial (artisanal) fleets in Mexico, Guatemala, Costa Rica, and Panama.
G Cerdenares-Ladrón de Guevara   +3 more
doaj   +1 more source

SFO for enhancing steganogrphy by exploiting exact resemblance between cover and secure text

open access: yesActa Scientiarum: Technology, 2022
Steganography has become an important science in security in recent years, it hides the existence of the secret information in such a way that no one suspects the information exists.
Omar Younis Abdulhammed
doaj   +1 more source

Reproductive biology of blue marlin (Makaira nigricans) in the western Pacific Ocean [PDF]

open access: yes, 2009
The reproductive biology of blue marlin (Makaira nigricans) was assessed from 1001 fish (ranging from 121 to 275 cm in eye-to-fork length; EFL) caught by Taiwanese offshore longliners in the western Pacific Ocean from September 2000 to December ...
Chien-Chung Tszeng, Chien-Chung Tszeng   +3 more
core  

Spatial and Temporal Heterogeneity of Fish Spawning Dynamics on the West Florida Shelf During Fall

open access: yesFisheries Oceanography, Volume 34, Issue 4, July 2025.
ABSTRACT Identifying spawning areas for economically and ecologically important fishes is critical for fisheries conservation and ecosystem‐based management. We used genetic barcoding to identify fish eggs collected across the West Florida Shelf (WFS) during September of 2013, 2014, and 2019.
Keith Keel   +8 more
wiley   +1 more source

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