Macrolophus pygmaeus (Hemiptera: Miridae) Population Parameters and Biological Characteristics When Feeding on Eggplant and Tomato Without Prey

2004 ◽  
Vol 97 (4) ◽  
pp. 1291-1298 ◽  
Author(s):  
Dionyssios Ch. Perdikis ◽  
Dionyssios P. Lykouressis
Keyword(s):  
Biological Characteristics ◽  
Population Parameters ◽  
Macrolophus Pygmaeus

scholarly journals BIOLOGICAL CHARACTERISTICS, POPULATION PARAMETERS, EXPLOITATION STATUS AND SPAWNING POTENTIAL RATIO OF GIANT TIGER PRAWN (PENAEUS MONODON FABRICIUS, 1798) IN SEBATIK WATERS, KALIMANTAN UTARA

2019 ◽  
Vol 25 (3) ◽  
pp. 191
Author(s):  
Tirtadanu Tirtadanu ◽  
Umi Chodrijah
Keyword(s):  
Growth Parameters ◽  
Penaeus Monodon ◽  
Biological Characteristics ◽  
Nursery Ground ◽  
Population Parameters ◽  
Biometric Data ◽  
Stock Status ◽  
Tiger Prawn ◽  
Spawning Potential Ratio ◽  
Exploitation Status

The limited data and the unreported information about the yields of giant tiger prawn  (Penaeus monodon Fabricius, 1798) in Sebatik caused difficulties in estimating potention and stock status of tiger prawn. The study that could be applied for estimating stock status and management strategy for sustainable shrimp fisheries in Sebatik Waters was the  study about biological characteristics, population parameters and spawning  potential ratio. Samples were obtained from the catch of trammel net by fishers  in some landing areas in Tanjung Aru and the biometric data has been collected during April-December 2018. The growth parameters were obtained from the movement of the monthly mode of carapace length that were based on the Von Bertalanffy growth model. Exploitation status was obtained from exploitation rate of E and length based SPR. The results showed that the mean size of shrimps that was captured by trammel net was 46,9±0,14 mmCL for male and 53,4±0,25 mmCL for female. Most of shrimps were caught before they spawn (Lc=51,2 mmCL<Lm=55,8 mmCL) and tiger prawns spawn throughout the year that the peaks occurred in Agustus dan November-December. Female shrimp has larger size (L∞ jantan=66,25 mmCL; L∞ betina=84,5 mmCL) and faster growth rate( K male=1,27 year-1; K female=1,39 year-1) than the male. The natural mortality of male shrimp was the same as the female (M=1,7 tahun-1) while the fishing mortality of male was higher than female (F male=2,13 tahun-1; F female=1,7 tahun-1). Exploitation status of tiger prawn in Sebatik Waters was fully exploited (E=0,5-0,55) and the shrimp stock has not been on growth overfishing yet according to spawning potential ratio of 34%. The shrimps fishing in Sebatik Waters could continue by avoiding the fishing on the nursery ground.

Source populations in coastal crabs: population parameters affecting egg production

2009 ◽  
Vol 7 ◽  
pp. 31-43 ◽  
Author(s):  
AAV Flores ◽  
CC Gomes ◽  
WF Villano
Keyword(s):  
Egg Production ◽  
Population Parameters ◽  
Source Populations

Clinical and biological characteristics of non-reactive hypoglycemia in non-diabetic adults

2020 ◽  
Author(s):  
Elyes Kamoun ◽  
Ibtissem Oueslati ◽  
Marwa Chiboub ◽  
Fatma Chaker ◽  
Nadia Khessairi ◽  
...  
Keyword(s):  
Biological Characteristics ◽  
Reactive Hypoglycemia

Molecular Biological Characteristics of Cancer

2014 ◽  
Vol 69 (1-2) ◽  
pp. 5-15 ◽  
Author(s):  
N.E. Kushlinskii ◽  
◽  
M.V. Nemtsova ◽  
Keyword(s):  
Biological Characteristics

Estimating Population Parameters of the Cladocera

1998 ◽  
Vol 34 (4-5) ◽  
pp. 41-49
Author(s):  
V. I. Razlutskii
Keyword(s):  
Population Parameters
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