Results 41 to 50 of about 1,790 (161)

Effect of sea water temperature on egg size of Japanese anchovy.

open access: yesNIPPON SUISAN GAKKAISHI, 1987
Egg size change of Japanese anchovy dependent upon sea water temperature is described. Length of chorion was selected as the representative egg size character based on comparisons with some other characters, and referred to as egg diameter. Egg diameter changed seasonally and geographically.
Imai, Chifumi, Tanaka, Syoiti
openaire   +2 more sources

Swimming angle and target strength of larval Japanese anchovy (Engraulis japonicus) [PDF]

open access: yesFisheries Science, 2011
The swimming angle of larval Japanese anchovy (Engraulis japonicus) was measured in a tank, and target strength (TS) was calculated using a theoretical scattering model. The mean swimming angle was 12.8° (SD ±22.1). Increased speeds of flow led to increased mean swimming angles.
Yusuke Ito   +6 more
openaire   +1 more source

Interspecific Differences in the Effects on Embryos Between Freshwater and Marine Fish Exposed to Water‐Accommodated Fractions Derived From Very‐Low Sulfur Fuel Oil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study evaluated the toxic effects of water‐accommodated fractions (WAFs) of very‐low sulfur fuel oil (VLSFO) on freshwater and marine fish embryos. Embryos of Japanese medaka (Oryzias latipes), Java medaka (Oryzias javanicus), and grass puffer (Takifugu alboplumbeus) were exposed to various concentrations of VLSFO‐WAF, and the effects on ...
Jumpei Matsuo   +5 more
wiley   +1 more source

Current status and trends for commercial stock of japanese anchovy Engraulis japonicus (Engraulidae) in Russian waters of the Japan Sea

open access: yesИзвестия ТИНРО
Japanese anchovy Engraulis japonicus of the Tsushima Current stock migrate to the northwestern Japan Sea in warm season and play there an important role in the pelagic food web.
A. A. Baitaliuk, V. I. Radchenko
doaj   +1 more source

Genome Expansion of ZPB1(a) and ZPC1(a) in Basal Species or Liver Expression of ZPB1a and ZPC1aa in Advanced Species, Two Different Strategies to Ensure Sufficient ZP Synthesis in Teleosts

open access: yesIntegrative Zoology, EarlyView.
We found that teleosts employed two different strategies to ensure sufficient ZP (zona pellucida) synthesis: expansion of ZPB1(a) and ZPC1(a) in basal species or liver expression of ZPB1a and ZPC1aa in advanced species. The N‐terminus of expanded ZPB1(a) or ZPC1(a) and liver‐expressed ZPB1a contains repeated units or low‐complexity regions to form ...
Tian Gao   +8 more
wiley   +1 more source

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。
Okada, Yukichika, Wada, Tokio
openaire   +2 more sources

Habitat History of Coilia nasus in Fujian Waters Based on Otolith Microchemical Analysis

open access: yesProgress in Fishery Sciences, 2023
The Japanese grenadier anchovy Coilia nasus Temminck & Schlegel, 1846 belongs to the family Engraulidae of the order Clupeiformes. This species is widely distributed in China, Japan, and Korea and in Northwest Pacific Ocean. In China, C.
Qing XU, Tao JIANG, Jian YANG, Min LIU
doaj   +1 more source

A Fishery‐Dependent CPUE‐Based Proxy Index for Juvenile Japanese Anchovy (Engraulis japonicus) Recruitment Variability in Southeastern Korea: Associations With Lagged Climate‐Ocean Conditions

open access: yesFisheries Oceanography, EarlyView.
ABSTRACT We developed and evaluated a fishery‐dependent catch‐per‐unit‐effort (CPUE)‐based proxy index for juvenile Japanese anchovy (Engraulis japonicus) recruitment‐related variability in the southeastern coastal waters of Korea. The proxy was constructed from bimonthly CPUE of the smallest juvenile size class (20–40 mm) in the anchovy drag‐net ...
Jin Yeong Kim   +5 more
wiley   +1 more source

Dynamics of Growth–Feeding Mechanisms in Japanese Anchovy Larvae Under Different Environmental Conditions

open access: yesFisheries Oceanography, EarlyView.
ABSTRACT The linkage between growth rate and feeding success in fish larvae has received much attention as a potential indicator of future growth and survival potential. Given the increasing evidence that the growth–survival relationship is highly variable, the growth–feeding linkage would also exhibit variable dynamics among cohorts of the same ...
Shota Tanaka   +6 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

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