Results 71 to 80 of about 5,707 (192)

Diet of juvenile skipjack herring Alosa chrysochloris: Ontogenetic shifts, predator–prey size ratios and mouth gape allometry

open access: yesJournal of Fish Biology, Volume 109, Issue 1, Page 384-399, July 2026.
Abstract The skipjack herring Alosa chrysochloris inhabits Gulf of Mexico drainages, primarily the Mississippi River Basin, and estuarine environments in the Gulf of Mexico. The trophic ecology of the skipjack herring is poorly understood, therefore we quantified the length, mouth gape and gut contents of juvenile skipjack herring from the Mississippi ...
Joshua P. Egan   +8 more
wiley   +1 more source

Disturbance is the primary determinant of food chain length when the top predator is constant

open access: yesJournal of Freshwater Ecology
Food chain length (FCL) is a primary determinant of food web structure and is hypothesized to be influenced by habitat size, productivity, and disturbance.
Sarah F. Sorensen, Daniel D. Magoulick
doaj   +1 more source

Adaptive Capacity of Freshwater Organisms in North America: Current Understanding and Future Applications

open access: yesGlobal Change Biology Communications, Volume 1, Issue 2, June 2026.
This paper tailors adaptive capacity understanding for North American freshwater fishes, mussels, and crayfishes by integrating trait‐based approaches to provide practical guidance for improving management and conservation decisions under global change.
H. S. Embke   +21 more
wiley   +1 more source

The influence of boating disturbance on the parental care behaviors of smallmouth bass (Micropterus dolomieu)

open access: yesScience of The Total Environment
Anthropogenic noise is a sensory pollutant altering aquatic soundscapes through increases in human-generated noise, such as those from the growing use of recreational boats. Motorboats produce low-frequency noise that overlaps with marine and freshwater fish hearing, yet freshwater species are less studied than their marine counterparts.
Alexandria A, West, Paul A, Moore
openaire   +2 more sources

Selective fishing of smallmouth bass Micropterus dolomieu by soaking time zone of gillnet

open access: yesNIPPON SUISAN GAKKAISHI, 2005
刺網によりコクチバスを効率的に漁獲して在来魚の混獲を軽減するために,コクチバスと在来魚が刺網に羅網しやすい時間帯を青木湖で調べた。魚の羅網時に生じる網の動きを時系列で記録できる振動検知器を底刺網に取り付けて,個体毎に羅網時刻を測定した。コクチバスの全漁獲尾数の 86% が日出から日没に羅網し,青木湖に生息する在来魚のフナは 92%,コイは 91% が日没から日出に羅網した。日出から日没に刺網を設置することにより,コクチバスを漁獲し,フナやコイの混獲を減らすことが可能である。
HONDA, NAOTO, FUJITA, KAORU
openaire   +2 more sources

Local Angler Knowledge Reveals Declines in Fishing Quality for Black Bass in Lakes of Eastern Ontario

open access: yesFisheries Management and Ecology, Volume 33, Issue 3, Page 568-590, June 2026.
ABSTRACT Local ecological knowledge can be useful to assess data‐limited fisheries such as the Ontario Black Bass (Micropterus spp.) recreational fishery. We surveyed local anglers using the Life History Calendar approach to determine if there were perceived changes in fishing quality for Black Bass in eastern Ontario across different time periods. For
Joel Zhang   +8 more
wiley   +1 more source

Development and validation of probe-based multiplex real-time PCR assays for the rapid and accurate detection of freshwater fish species.

open access: yesPLoS ONE, 2019
Reliable species identification methods are important for industrial environmental monitoring programs. Probe based real-time quantitative polymerase chain reaction (qPCR) provides an accurate, cost-effective and high-throughput method for species ...
Emily N Hulley   +3 more
doaj   +1 more source

Stratified Pit Features at the Presbytère de l'Ancienne‐Lorette (CeEu‐11) and the Fort Odanak (CaFe‐7) Sites in Québec, Canada: A Comparative Geoarchaeological Analysis

open access: yesGeoarchaeology, Volume 41, Issue 3, May/June 2026.
ABSTRACT A geoarcheological study of two large, stratified Indigenous pit features discovered at two Jesuit mission sites in Québec (Canada) was carried out to offer a detailed documentation of their contents and better understand their use over time. One of the pits is a 17th c.
Sarah Robert, Allison Bain, Najat Bhiry
wiley   +1 more source

Down, but not out: Recent decline of Berg–Breede River whitefish (Barbus andrewi) in the upper Hex River, South Africa

open access: yesKoedoe: African Protected Area Conservation and Science, 2017
The Berg–Breede River whitefish, Barbus andrewi, an endangered Cape Floristic Region endemic, was once widespread in both the Berg and Breede River catchments.
Jeremy M. Shelton   +3 more
doaj   +1 more source

Induced nest failure as a mechanism for controlling invasive smallmouth (Micropterus dolomieu) and largemouth bass (Micropterus salmoides)

open access: yes, 2017
University of Minnesota Ph.D. dissertation. February 2017. Major: Conservation Biology. Advisor: Paul Venturelli. 1 computer file (PDF); viii, 172 pages.Loppnow, Grace. (2017).
Loppnow, Grace
core  

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