Effect of Temperature on Larval Growth of Aedes triseriatus1

1972 ◽  
Vol 65 (2) ◽  
pp. 625-626 ◽  
Author(s):  
M. Jalil
Keyword(s):  
Larval Growth ◽  
Effect Of Temperature

Food web constraints on larval growth in subtropical coral reef and pelagic fishes

2020 ◽  
Vol 650 ◽  
pp. 19-36 ◽  
Author(s):  
MR Gleiber ◽  
S Sponaugle ◽  
KL Robinson ◽  
RK Cowen
Keyword(s):  
Coral Reef ◽  
Prey Availability ◽  
Interactive Effect ◽  
Larval Growth ◽  
Additive Models ◽  
Fish Growth ◽  
Effect Of Temperature ◽  
Fine Scale ◽  
Recent Growth ◽  
Background Density

Prey availability and predation pressure are thought to be key constraints on larval growth, especially in low-productivity, subtropical environments. Yet, measuring their effects on larval fishes has been challenging, given the dynamic biophysical drivers of plankton distributions and small scales of interactions. We integrated fine-scale net tows (10s of meters) with in situ imaging to explore how predator-prey interactions influence larval fish growth in the Straits of Florida. Otolith-derived recent growth was analyzed for 3 ecologically important fishes: 2 coral reef labrids (Thalassoma bifasciatum and Xyrichtys novacula) and 1 tuna (Katsuwonus pelamis), with differing mean growth rates (labrids 0.25 mm d-1, K. pelamis 0.44 mm d-1) and prey (labrids-copepods; tuna-appendicularians). We used generalized additive models to examine the interactive effect of background density and frequency of elevated (>2 SD above background) prey and predators on recent (last 3 d) larval growth. For all taxa, recent growth increased with prey background density. Recent growth of labrids was also higher when copepod densities were more often elevated (14% of transect >20 ind. m-3) above otherwise low background densities (2 ind. m-3). Predators (chaetognaths and hydromedusae) had a growth-selective effect: stronger selection in transects with high-density predator patches, although the direction of the effect was species-specific. The effect of temperature was taxa-specific: growth increased with temperature for the labrids and peaked at an optimum (28°C) for the rapidly growing tuna. Integration of these fine-scale sampling methods improves our understanding of the variable influence of prey and predators on larval growth and, consequently, larval survival.

Effects of temperature and relative humidity on rearing performances of Eri Silkworm (Philosami aricini)

2014 ◽  
Vol 15 (3) ◽  
pp. 189-196
Author(s):  
Shubhangi Vaidya ◽  
Ulka Yadav ◽  
J. Bhouraskar
Keyword(s):  
Relative Humidity ◽  
Larval Growth ◽  
Effect Of Temperature ◽  
Environmental Condition ◽  
Seasonal Fluctuations ◽  
Philosamia Ricini ◽  
Ecological Stress ◽  
Effects Of Temperature ◽  
Temperature Levels ◽  
Critical Limits

Eri Silkworm (Philosamia ricini) is a delicate, domesticated insect which cannot tolerate diurnal and seasonal fluctuations in the environmental condition. The life cycle of silkworm is influenced by bio-ecological stress during larval period. Deviations in humidity and temperature levels below and above certain critical limits affect larval growth and development of Eri silkworm. In present study, several experiments were performed in four temperatures 20±3ºC, 24±3ºC, 28±3ºC and 32±3ºC each with three relative humidity 50%, 70% and 90% on rearing of Eri silkworm (Philosamiaricini) to study the effect of temperature and relative humidity on larval, cocoon and grainage parameter.Our findings clearly indicated that the 28±3ºC temperature and 70% relative humidity are the best for larval, cocoon and grainage parameter of Eri silkworm (Philosamia ricini).

Larval Growth and the Effect of Temperature on Head Capsule Size inLobesia botrana(Lepidoptera: Tortricidae)

2006 ◽  
Vol 35 (2) ◽  
pp. 189-193 ◽  
Author(s):  
F. Javier Sáenz-de-Cabezón Irigaray ◽  
Fernando Moreno ◽  
Ignacio Pérez-moreno ◽  
Vicente Marco
Keyword(s):  
Larval Growth ◽  
Head Capsule ◽  
Effect Of Temperature ◽  
Capsule Size

scholarly journals Effect of zooplankton on fish larval abundance and distribution: a long-term study on North Sea herring (Clupea harengus)

2015 ◽  
Vol 72 (9) ◽  
pp. 2569-2577 ◽  
Author(s):  
S. Alvarez-Fernandez ◽  
P. Licandro ◽  
C. J. G. van Damme ◽  
M. Hufnagl
Keyword(s):  
North Sea ◽  
Larval Growth ◽  
Strong Relationship ◽  
Clupea Harengus ◽  
Effect Of Temperature ◽  
Larval Abundance ◽  
Trawl Survey ◽  
Larval Distribution ◽  
Long Term Study

Abstract During the last decade, North Sea autumn spawning herring (Clupea harengus) has gone through consecutive years of low recruitment despite high spawning-stock biomass. Although several mechanisms, such as reduced larval growth and high early larvae mortality, have been identified as co-occurring during these years, the causes behind them have not been identified. In this study, we analyse a long-term dataset of larval distribution, obtained during the International Bottom Trawl Survey, in relation to environmental conditions during winter and zooplankton abundances, obtained from the continuous plankton recorder. These analyses assessed the potential influence of these factors on the reduced survival of larval stages. Generalized additive mixed models on 30 years of data showed the abundance of Pseudocalanus sp. during winter to have a strong relationship with larval distribution and abundance, suggesting that predator–prey processes are behind the low recruitment in recent years. According to our models, the direct effect of temperature on larval abundances was less than the effect of zooplankton abundances.

Embryonic development and effect of temperature on larval growth of the Peruvian anchovy Engraulis ringens

2021 ◽  
Author(s):  
Fanny Rioual ◽  
Claudia Ofelio ◽  
Maryandrea Rosado‐Salazar ◽  
Jhon Dionicio‐Acedo ◽  
Myron A. Peck ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Larval Growth ◽  
Effect Of Temperature ◽  
Engraulis Ringens
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