Results 51 to 60 of about 7,084 (211)

Reproductive Relationships of the Pacific Stock of Japanese Anchovy Engraulis japonicus

open access: yesNIPPON SUISAN GAKKAISHI, 2000
カタクチイワシ本州太平洋系群の1978a1994年級の再生産関係を検討した。親の量は太平洋岸の潮岬以東の観測された産卵量, 子の量は子世代が生涯産んだ推定産卵量とした。子の量は潮岬以東の産卵量を過去の研究から推定した体重1gあたりの年間産卵量と年別成魚漁獲量の比率で分割して求めた。その再生産関係は1989年級を境に異なった。1978a1988年級群では親の量は低水準で年々の親と子の量はほぼ同量であったが, 1990a1994年級では親の量は高水準で年々の親と子の量の関係は大きく変動した。
Yukichika Okada, Tokio Wada
openaire   +2 more sources

The Occurrence of Microplastic Ingestion in Commercial Marine Fish in Miri, Sarawak, Malaysia

open access: yesEnvironmental Quality Management, Volume 35, Issue 4, Summer 2026.
ABSTRACT Microplastics are polymer‐based particle compositions of various toxic chemicals with size less than 5 mm. Due to their small size, microplastics can be ingested and accumulate in body tissues of organisms. This raises concerns about their toxicity being transferred to humans via food consumption.
Sze Che Lee, Rubiyatno, Tony Hadibarata
wiley   +1 more source

Status and Potential of Fisheries and Aquaculture in Asia and the Pacific 2006 [PDF]

open access: yes, 2006
This publication highlights the interconnectivity and linkages between coastal ecosystems (mangroves, coral reefs, seagrasses, estuaries, and lagoons) across environ-mental, economic, social, and management contexts.
Francine Kershaw, Silvia Silvestri
core  

Interactive Effects of Temperature and Soybean Meal‐Based Diets on the Physiological Status of Juvenile Totoaba macdonaldi: Growth and Blood Parameters

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT Growth and haematological parameters are used in aquaculture as indicators of the health of cultivated fish in response to changes in diet and the physicochemical conditions of the water. In this study, the physiological status of Totoaba macdonaldi was evaluated based on growth, haematological parameters and blood chemistry in response to two
Eloy Eduardo Yen‐Ortega   +2 more
wiley   +1 more source

The Mitochondrial Markers Provide New Insights Into the Population Demographic History of Coilia nasus With Two Ecotypes (Anadromous and Freshwater)

open access: yesFrontiers in Marine Science, 2020
The Pleistocene climate oscillations have been proven to have profound influences in the evolutionary processes of marine species and left significantly tractable footprints in genomes of marine fauna.
Tianxiang Gao   +4 more
doaj   +1 more source

Degeneration of postovulatory follicles in the Iberian sardine Sardina pilchardus: structural changes and factors affecting resorption [PDF]

open access: yes, 2007
Inaccuracy in the aging of postovulatory follicles (POFs) and in estimating the effect of temperature on the resorption rate of POFs may introduce bias in the determination of the daily spawning age classes with the daily egg production method (DEPM). To
Ganias , Konstantinas   +2 more
core  

Development and validation of 98 SNP markers in Japanese anchovy, Engraulis japonicus

open access: yesConservation Genetics Resources, 2022
Abstract The Japanese anchovy, Engraulis japonicus, is an important economic fish that is distributed in the northwest Pacific Ocean. The effective assessment and management of the Engraulis japonicus fishery requires reliable information regarding its population’s genetic structure.
Chenghui Song, Yang Liu, Congcong Wang
openaire   +1 more source

Novel Assay for Endangered Hong Kong Grouper (Epinephelus akaara) to Assess eDNA Shedding, Decay, and Population Status

open access: yesEnvironmental DNA, Volume 8, Issue 2, March/April 2026.
Novel species‐specific eDNA qPCR assay for endangered Hong Kong Grouper (Epinephelus akaara) reveals low shedding rates and rapid decay. Rare, trace detections across Hong Kong waters confirm population rarity, demonstrating eDNA as a powerful non‐invasive tool for monitoring threatened marine fishes. ABSTRACT The Hong Kong Grouper (Epinephelus akaara)
Arthur Chung   +2 more
wiley   +1 more source

PICES Press, Vol. 5, No. 2, July 1997 [PDF]

open access: yes, 1997
WG 10 Fukuoka Workshop Pacific salmon:climate-linked long-term stock fluctuations The state of the eastern North Pacific in the second half of 1996 The state of the western North Pacific in the second half of 1996 The status of the Bering Sea in ...

core  

Contemporary Methods for Capturing Juvenile Salmonids in the Marine Environment

open access: yesFish and Fisheries, Volume 27, Issue 2, Page 160-178, March 2026.
ABSTRACT Anadromous salmonids play vital roles in marine and freshwater ecosystems. The most abundant of these fishes—Pacific salmon (Oncorhynchus spp.)—are integral to coastal ecosystems and communities across the North Pacific Rim, but numerous populations are experiencing dramatic declines, particularly towards the south of their range.
Sean C. Godwin   +6 more
wiley   +1 more source

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