Effects of water temperature on white-spotted conger Conger myriaster activity levels determined by accelerometer transmitters

2019 ◽  
Vol 85 (2) ◽  
pp. 295-302 ◽  
Author(s):  
Tomoya Hori ◽  
Takuji Noda ◽  
Toshihiro Wada ◽  
Takashi Iwasaki ◽  
Nobuaki Arai ◽  
...  
Keyword(s):  
Water Temperature ◽  
Activity Levels ◽  
Conger Myriaster ◽  
Conger Conger

Water temperature manipulation can induce oocyte maturation and ovulation in the common Japanese conger, Conger myriaster

Aquaculture ◽  
2013 ◽  
Vol 392-395 ◽  
pp. 120-127 ◽  
Author(s):  
Tomoko Utoh ◽  
Noriyuki Horie ◽  
Akihiro Okamura ◽  
Naomi Mikawa ◽  
Yoshiaki Yamada ◽  
...  
Keyword(s):  
Water Temperature ◽  
Oocyte Maturation ◽  
Conger Myriaster ◽  
The Common ◽  
Temperature Manipulation ◽  
Conger Conger

scholarly journals Comparison of Invasive Apple Snail (Pomacea canaliculata) Behaviors in Different Water Temperature Gradients

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1149
Author(s):  
Mi-Jung Bae ◽  
Eui-Jin Kim ◽  
Young-Seuk Park
Keyword(s):  
Water Temperature ◽  
Farming Systems ◽  
Freshwater Snail ◽  
Freshwater Ecosystems ◽  
Pomacea Canaliculata ◽  
Activity Levels ◽  
Self Organizing Map ◽  
Apple Snail ◽  
Temperature Changes ◽  
Organic Farming Systems

Pomacea canaliculata (known as invasive apple snail) is a freshwater snail native to South America that was introduced into many countries (including Asia and North America) as a food source or for organic farming systems. However, it has invaded freshwater ecosystems and become a serious agricultural pest in paddy fields. Water temperature is an important factor determining behavior and successful establishment in new areas. We examined the behavioral responses of P. canaliculata with water temperature changes from 25 °C to 30 °C, 20 °C, and 15 °C by quantifying changes in nine behaviors. At the acclimated temperature (25 °C), the mobility of P. canaliculata was low during the day, but high at night. Clinging behavior increased as the water temperature decreased from 25 °C to 20 °C or 15 °C. Conversely, ventilation and food consumption increased when the water temperature increased from 25 °C to 30 °C. A self-organizing map (an unsupervised artificial neural network) was used to classify the behavioral patterns into seven clusters at different water temperatures. These results suggest that the activity levels or certain behaviors of P. canaliculata vary with the water temperature conditions. Understanding the thermal biology of P. canaliculata may be crucial for managing this invasive snail.

Entrapment and transport of foreign material in the spleen and kidney of Japanese conger Conger myriaster

2002 ◽  
Vol 68 (6) ◽  
pp. 1219-1225 ◽  
Author(s):  
TOYOKAZU FURUKAWA ◽  
OSAMU NAKAMURA ◽  
YUKIYA SUZUKI ◽  
SHIZUO ATSUTA ◽  
HIROAKI NAKAMURA ◽  
...  
Keyword(s):  
Foreign Material ◽  
Conger Myriaster ◽  
Conger Conger

Oogenesis in the common Japanese conger Conger myriaster

2003 ◽  
Vol 69 (1) ◽  
pp. 181-188 ◽  
Author(s):  
TOMOKO UTOH ◽  
NORIYUKI HORIE ◽  
AKIHIRO OKAMURA ◽  
YOSHIAKI YAMADA ◽  
SATORU TANAKA ◽  
...  
Keyword(s):  
Conger Myriaster ◽  
The Common ◽  
Conger Conger

scholarly journals Age determination for whitespotted conger Conger myriaster through somatic and otolith morphometrics

PLoS ONE ◽  
2018 ◽  
Vol 13 (9) ◽  
pp. e0203537
Author(s):  
Xiuxia Mu ◽  
Chongliang Zhang ◽  
Chi Zhang ◽  
Binduo Xu ◽  
Ying Xue ◽  
...  
Keyword(s):  
Age Determination ◽  
Conger Myriaster ◽  
Conger Conger

Genetic variation in the mitochondrial and nuclear DNA of the Japanese conger Conger myriaster

2001 ◽  
Vol 67 (6) ◽  
pp. 1081-1087 ◽  
Author(s):  
Satoshi Ishikawa, ◽  
Yobuo Kimura, ◽  
Tadashi Tokai, ◽  
Katsumi Tsukamoto ◽  
Mutsumi Nishida
Keyword(s):  
Genetic Variation ◽  
Nuclear Dna ◽  
Conger Myriaster ◽  
Conger Conger

Reproductive cycle in reared male common Japanese conger, Conger myriaster

Aquaculture ◽  
2004 ◽  
Vol 240 (1-4) ◽  
pp. 589-605 ◽  
Author(s):  
T. Utoh ◽  
A. Okamura ◽  
Y. Yamada ◽  
S. Tanaka ◽  
N. Mikawa ◽  
...  
Keyword(s):  
Reproductive Cycle ◽  
Conger Myriaster ◽  
Conger Conger

Changes in the levels of mRNA coding for gonadotropin Ibeta and IIbeta subunits during vitellogenesis in the common Japanese conger Conger myriaster

2001 ◽  
Vol 67 (6) ◽  
pp. 1053-1062 ◽  
Author(s):  
Shingo Kajimura, ◽  
Yasutoshi Yoshiura, ◽  
Miwa Suzuki, ◽  
Tomoko Utoh, ◽  
Noriyuki Horie, ◽  
...  
Keyword(s):  
Conger Myriaster ◽  
The Common ◽  
Conger Conger

Influence of temperature, water current, illumination, and time on activity and substrate selection in juvenile smallmouth bass (Micropterus dolomieui)

1981 ◽  
Vol 59 (12) ◽  
pp. 2322-2330 ◽  
Author(s):  
Hugh R. MacCrimmon ◽  
William H. Robbins
Keyword(s):  
Water Temperature ◽  
Smallmouth Bass ◽  
Water Current ◽  
Activity Levels ◽  
Substrate Selection ◽  
Black And White ◽  
Micropterus Dolomieui ◽  
Highly Correlated ◽  
Fish Activity ◽  
Selection Of

Behaviour of wild juvenile smallmouth bass, Micropterus dolomieui, in the laboratory was significantly influenced by water temperature, current, and illumination. Activity increased with increasing water temperature and (or) water current. When exposed to black and white substrate, selection of black was inversely dependent on temperature and current, and highly correlated with fish activity (r = 0.995, P < 0.001, inverse cubic relation). Substrate pattern influenced fish activity, aggregation, and social interaction. Activity levels increased with increasing incident illumination whereas selection of black substrate declined, particularly at higher water temperatures. Older juveniles became less active with age and preferred black substrate when available, thereby indicating a developing behavioural pattern which favours survival and energy conservation under natural nursery conditions by the discrete use of available cover.

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