Results 61 to 70 of about 760 (188)

The effects of scientific uncertainty and values trade‐offs on flow management decisions for an endangered fish

open access: yesEcosphere, Volume 17, Issue 3, March 2026.
Abstract Consumptive use of freshwater is of concern in many estuarine ecosystems, and various frameworks have been used to prescribe environmental flows to benefit native species. However, few of these frameworks explicitly examine the potential trade‐offs between socioeconomic and conservation‐oriented values.
Brian Mahardja   +8 more
wiley   +1 more source

Видовой состав и структура сообщества рыб в прибрежной зоне северо-восточной части Татарского пролива (Японское море) в августе и октябре

open access: yesАмурский зоологический журнал
Рассмотрен видовой состав и структура сообщества рыб у северо-восточного побережья Татарского пролива (Японское море) на глубинах до 3 м по результатам обловов закидным и мальковым неводами в августе и октябре 2009 г.
Эльза Рудольфовна Ившина   +2 more
doaj   +1 more source

Identifying Environmental Factors Limiting Recovery of an Imperiled Estuarine Fish

open access: yesFrontiers in Ecology and Evolution, 2022
Correctly identifying the environmental factors that limit population growth and recovery of imperiled species is an essential element of any targeted conservation program.
Scott A. Hamilton, Dennis D. Murphy
doaj   +1 more source

Locating Little Larvae: Environmental DNA Methods Can Detect a Rare Fish Species Under Field Estuarine Conditions

open access: yesEnvironmental DNA, Volume 8, Issue 2, March/April 2026.
We measured a positive linear relationship between eDNA concentration and abundance for larval Delta Smelt (Hypomesus transpacificus) with N = 1 larva exceeding the limit of detection for the novel qPCR assay. Field experiments quantified the probability of detection for eDNA sampling methods at known abundances and distances from source. ABSTRACT Rare
Sarah A. Stinson   +10 more
wiley   +1 more source

Observations on Food-organisms of a Teleost, Hypomesus olidus Pallas

open access: yesNIPPON SUISAN GAKKAISHI, 1935
Observations were made from August, 1933 to July, 1934 on the content of alimentary canal of a teleost, Hypomesus olidus, and plankton organisms living in its habitat, Lake Kasumigaura Pref. Ibaraki. The fish feeds mostly on such kinds of small animals as are found most abundantly in the lake.
openaire   +2 more sources

Fish Assemblage Shift after Japanese Smelt (Hypomesus nipponensis McAllister, 1963) Invasion in Lake Erhai, a Subtropical Plateau Lake in China

open access: yes, 2021
The introduction of non-native fish species is known to have adverse effects on aquatic ecosystems, but their effect on plateau lakes is not well studied. In this study, we examined the effect of the Japanese smelt (Hypomesus nipponensis) invasion on the
Longgen Guo   +3 more
core   +1 more source

Ecological Studies of the Pond Smelt, Hypomesus olidns (PALLAS)-II

open access: yesNIPPON SUISAN GAKKAISHI, 1953
The scale of pond smelt, Hypomesus olidus (PALLAS), shows no definite annual-ring in such a manner as the scale of salmon or herring. Two different zones, one of which grows in summer and the other in winter, are recognized on the scale of the fish in Lake Kasumigaura by F. MATSUZAKI (1916), while, according to H.
openaire   +3 more sources

Characterization of salmon‐foraging harbor seals (Phoca vitulina) in the Erimo region, Hokkaido, Japan, using finite mixture models

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 2, February 2026.
Finite mixture models revealed that older, larger harbor seals specialize in salmon predation at setnets in Hokkaido, Japan, suggesting targeted management strategies focusing on these specialist individuals could effectively reduce fishery conflicts while protecting the broader seal population.
Takahito Masubuchi, Mari Kobayashi
wiley   +1 more source

Heterogeneity of Surf Smelt, Hypomesus pretiosus (Girard), in the State of Washington, as Judged by Incidence of Larval Anisakis (Nematoda)

open access: yes, 1967
Spawning populations of surf smelt, Hypomesus pretiosus (Girard), from three distinct localities on the coast of Washington State revealed different levels of infestation by larval nematodes, genus Anisakis, in 1962.
Raj V. Kilambi, Allan C. DeLacy
core   +1 more source

Length–weight relationships of 12 fish species (Actinopterygii) from nearshore and coastal Alaskan waters of the eastern Bering, Chukchi, and Beaufort seas [PDF]

open access: yesActa Ichthyologica et Piscatoria
Changing ocean conditions in higher latitude ecosystems and the potential impact on marine fish underscores the need for baseline information on their biology and growth.
Edward Hu   +2 more
doaj   +3 more sources

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