Length–weight relationship of Charybdis callianassa Herbst, 1789 (Decapoda: Brachyura) in relation to sex and carapace length along the Mumbai coastal water, India

Abstract Background The present study was performed to determine carapace length–body weight relationship of Charybdis callianassa. In fisheries biology, length–weight relationships are important as they allow for the calculation, by creating a mathematical equation between the two, of the total weight of the fish in a particular group in fish. Such information is helpful for fishery scientists to research the dynamics of development and populations and for public agencies that can maintain and preserve these resources sustainably. Results A study on the carapace length–body weight relationship of Charybdis callianassa (Herbst, 1789) was made on the northwest coast of India for the first time. The study was based on experimental trawl fishing conducted fortnightly from August 2019 to March 2020. A total of 479 specimens, including 262 males and 217 females from fishing trawler, were examined for their carapace length and total weight. The carapace length ranged from 2.69 to 3.54 cm, and the total weight from 5.26 to 7.36 g. This analysis revealed that the crabs exhibited negative allometric development, as shown by average exponents 'b' = 2.71 for pooled data with high coefficient (r) = 0.91 and r2 = 0.83. Conclusions The carapace length–body weight relationship of Charybdis callianassa in relation to sex and carapace was studied in the Mumbai coastal water, India. We found major differences in the average “r2” values of species reported for males (0.89), females (0.79) and pooled data (0.83). Such kind of study is essential for fisheries biology to comprehend the differences in circumstances in small and large specimens that vary with environmental conditions and seasons.

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Length-weight relationship and growth pattern inference of a small indigenous freshwater Prawn, Macrobrachium lamarrei (H. Milne-Edwards, 1837) in Bangladesh

Research in Agriculture Livestock and Fisheries ◽

10.3329/ralf.v1i1.22377 ◽

2015 ◽

Vol 1 (1) ◽

pp. 137-145

Author(s):

Motia Gulshan Ara ◽

Md Noor Nabi ◽

Zoarder Faruque Ahmed ◽

Mst Kaniz Fatema

Keyword(s):

Body Weight ◽

Carapace Length ◽

Freshwater Prawn ◽

Allometric Growth ◽

Pooled Data ◽

Weight Relationship ◽

Length Measurements ◽

Highly Correlated ◽

Pattern Inference ◽

Parameter Values

The length-weight relationships (LWRs) of Macrobrachium lamarrei (H. Milne-Edwards, 1837) was studied to construct the generalized relationships of body weight to carapace length measurements for male, female and combined prawn population separately over a calendar year. A total of 1018 specimens were used for this study. The parameter values of the equation W = a Lb describing the relationships between body weight and carapace length for male, female and combined prawns. The parameter of equations, a varied from 0.00096 to 0.00333, 0.00059 to 0.00728 and 0.00081 to 0.00440 for male, female and combined prawn population respectively. On the other hand, the slope of equations, b varied from 2.4363 to 2.8229, 2.0761 to 3.0314 and 2.2915 to 2.8998 for male, female and combined prawn population respectively indicating isometric growth in females but negative allometric for males suggesting that female prawns were comparatively in better condition than males of the same population. The generalized length-weight relationship was fitted with the pooled data of all monthly samples for male, female and combined prawn separately which were BW = 0.0008 CL2.924, BW = 0.0012 CL2.783 and BW = 0.0010CL2.845 respectively indicating negative allometric growth as b varied from 2.783 to 2.924. The results further revealed that all length-weight relationships (LWRs) were highly correlated (r2 > 0.904). DOI: http://dx.doi.org/10.3329/ralf.v1i1.22377 Res. Agric., Livest. Fish.1(1): 137-145, Dec 2014

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Morphometrics and length-weight relationship of Schizothoraxcurvifrons Heckel 1838 in River Jhelum, Kashmir, India

Indian Journal of Animal Research ◽

10.18805/ijar.v0i0f.3787 ◽

2016 ◽

Author(s):

Tasaduq H. Shah ◽

Sauliheen Qadri ◽

M. H. Balkhi ◽

Bilal A. Bhat ◽

F. A. Bhat ◽

...

Keyword(s):

B Value ◽

Cyprinid Fish ◽

Allometric Growth ◽

Morphometric Characters ◽

Fishery Resource ◽

Pooled Data ◽

Weight Relationship ◽

Highly Correlated ◽

Relationship Of

Schizothorax curvifrons, an indigenous cyprinid fish of Kashmir, forms an important coldwater fishery resource of the valley. This study was aimed to describe the morphometrics and length-weight relationship of S. curvifrons in River Jhelum Kashmir. The various morphometric characters showed high co-efficient of correlation (r) values, indicating that the characters were highly correlated to each other. The length-weight relationship was established logarithmically as Log W = -3.9323 + 2.5863 Log L (r2=0.746) for males, Log W = -4.1708 + 2.6852 (r2=0.745) Log L for females and Log W = -3.9975 + 2.6138 Log L (r2=0.746) for pooled data. The b value (2.6138) was found to be significantly different from 3 indicating negative allometric growth.

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Taxonomy, length-weight relationship, food and feeding habits of flower moon crab Matuta planipes Fabricius, 1798 from coastal waters of Gopalpur, Odisha, India

Indian Journal of Fisheries ◽

10.21077/ijf.2017.64.3.61422-03 ◽

2017 ◽

Vol 64 (3) ◽

Cited By ~ 1

Author(s):

Durga Prasad Behera ◽

S. Y. Tenjing ◽

Rocktim Ramen Das ◽

Laxman Nayak ◽

D. Mohapatra

Keyword(s):

Coastal Waters ◽

Carapace Length ◽

Feeding Habits ◽

Carapace Width ◽

Total Weight ◽

Linear Pattern ◽

Food And Feeding ◽

Males And Females ◽

Relationship Of ◽

The Relationship

The relationship between carapace length (CL), carapace width (CW) and total weight (TW) in the flower moon crab Matuta planipes Fabricius, 1798 was studied and found to be CL = 0.144+1.319 CW and CL = 0.356+1.273 CL for males and females respectively. In case of the carapace width and total weight, the relationships were: TW = 0.272 CW3.011 and TW = 0.474 CW2.555 for males and females respectively. The relationships of carapace length and total weight were: TW = 0.128 CL2.917 for males and TW = 0.184 CL2.650 for females. A linear pattern was found between the relationship of CL and CW for M. planipes, whereas a curvilinear pattern was found between the relationship of CL/CW and TW in the present study. It was also observed that M. planipes is an opportunistic omnivore, seaweed being the most dominant food item followed by crustaceans, seagrass, amphipods and miscellaneous matter.

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Optimizing Harvest Time Through Absolute and Relative Growth of the Black Clam, Chionista fluctifraga, Cultivated in the Intertidal Along the Southeastern Coast of the Gulf of California

Turkish Journal of Fisheries and Aquatic Sciences ◽

10.4194/trjfas19537 ◽

2021 ◽

Vol 22 (2) ◽

Author(s):

Andrés Martín Góngora-Gómez ◽

María José Acosta-Campos ◽

María Fernanda Navarro-Chávez ◽

Hervey Rodríguez-González ◽

Lizeth Carolina Villanueva-Fonseca ◽

...

Keyword(s):

Growth Rate ◽

Body Weight ◽

Gulf Of California ◽

Shell Height ◽

Coefficient Of Determination ◽

Relative Growth ◽

Harvesting Time ◽

Final Survival ◽

Relationship Of ◽

First Time

The shell height-body weight relationship of the black clam Chionista fluctifraga cultivated in the intertidal of the southeastern Gulf of California, was evaluated for the first time, to improve the knowledge in determining its harvesting time. Clam seeds (n=900,000; 6.1±1.9 mm) were produced in the laboratory. The culture was divided into pre-fattening in racks on the bottom (2 months) and fattening directly in the bottom (16 months) from May 2018 to October 2019. Each month, 60 (n=1080) clams were randomly selected to stablish the morphometric relationship between shell height (SH) and body weight (BW). The growth rate (mm/d and g/d) was recorded. The SH-BW Interaction in both cultivation phases showed positive allometry. SH in prefattening and fattening registered a growth rate of 0.072 and 0.058 mm/d, respectively. In fattening, the interaction BW-SH displayed a high coefficient of determination (R2=0.99). A final survival rate of 90% was obtained. The results yielded the equations that describe the relative growth of C. fluctifraga for the fattening stage. A harvesting time after 10 months of fattening in the intertidal zone is stablished to reach the commercial size (35 mm, SH).

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Length-weight relationship in ten fish species from the Nhamundá River, the Amazon Basin, Brazil

Acta Amazonica ◽

10.1590/1809-4392201601272 ◽

2017 ◽

Vol 47 (1) ◽

pp. 75-78 ◽

Cited By ~ 8

Author(s):

Tiago Magalhães da Silva FREITAS¹* ◽

Joao Batista de Souza e SOUZA¹ ◽

Bruno da Silveira PRUDENTE² ◽

Luciano Fogaça de Assis MONTAG²

Keyword(s):

Life Cycle ◽

Fisheries Management ◽

Amazon Basin ◽

Primary Data ◽

Weight Relationship ◽

Management Plans ◽

Left Tributary ◽

Biological Aspects ◽

Relationship Of ◽

First Time

ABSTRACT Studies on the length-weight relationship (LWR) of fishes are an important tool to describe several biological aspects of the species. Consequently, these studies are relevant due the necessity of comprehension about fish life cycle. Thus, this study aimed to establish the length-weight relationship of the ten most common fish in the Lower Nhamundá River, left tributary of the Amazon River. The capture of fish was conducted in January 2008 using gill nets. A total of 807 individuals, ten species and three Orders (Characiformes, Siluriformes and Clupeiformes) were analyzed. The parameter b varied from 2.680 to 3.698. The LWR were shown for the first time for two species: Anostomoides laticeps and Ageneiosus polystictus. Finally, this research emphasizes the importance of LWR studies in the Amazon and the use of primary data for fisheries management plans.

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Studies on Length-Weight Relationship of a Hill-Stream Loach, Schistura cupicola (McClelland)

Journal of Natural History Museum ◽

10.3126/jnhm.v24i1.2288 ◽

2009 ◽

Vol 24 ◽

pp. 126-129 ◽

Cited By ~ 1

Author(s):

Aman Ansumal ◽

Bharat Raj Subba

Keyword(s):

Body Weight ◽

Natural History ◽

Correlation Coefficient ◽

Regression Coefficient ◽

Total Body Weight ◽

Least Square ◽

Allometric Growth ◽

Weight Relationship ◽

Total Body ◽

Relationship Of

The study of length-weight relationship of a hill-stream loach, Schistura rupicola McClelland collected from Lampengwa Khola, Nepal was done using the least square formula W=aLTb. The values of 'a' and 'b' calculated from the measurement of total length and total body weight were -2.1431 and 3.0508 respectively. The computed value of correlation coefficient (r) was 0.9970. Key words: Correlation coefficient; Regression coefficient; Allometric growth; Body weight. Journal of Natural History MuseumVol. 24, 2009Page : 126-129

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Length-weight relationship of three stomatopod species from the Mumbai coast, India

Crustaceana ◽

10.1163/15685403-00003931 ◽

2019 ◽

Vol 92 (9) ◽

pp. 1141-1149

Author(s):

S. Kesavan ◽

J. S. Jenishma ◽

T. Nirmal ◽

S. S. Kamath ◽

K. M. Xavier ◽

...

Keyword(s):

Arabian Sea ◽

Coefficient Of Determination ◽

Weight Relationship ◽

The North ◽

Shrimp Trawl ◽

North Eastern ◽

Eastern Arabian Sea ◽

Relationship Of ◽

First Time

Abstract Length-weight relationship (LWR) was estimated for three stomatopod species, namely Oratosquillina perpensa (Kemp, 1911), Harpiosquilla raphidea (Fabricius, 1798) and Miyakella nepa (Latreille, 1828) for the first time from the north-eastern Arabian Sea. Experimental fishing, using a shrimp trawl, was conducted fortnightly during September 2017 up to April 2018 along the Maharashtra coast. A total of 821 samples were collected. Length-weight relationship showed good fit with coefficient of determination () values varying from 0.9190 to 0.9612. In this study, b values ranged from 2.758 to 3.140. The LWRs of Oratosquillina perpensa and Miyakella nepa have not yet been reported in the SealifeBase.

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Growth and condition in the Northwest Atlantic harp seal

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f95-049 ◽

1995 ◽

Vol 52 (3) ◽

pp. 478-488 ◽

Cited By ~ 21

Author(s):

M. O. Hammill ◽

M. C. S. Kingsley ◽

G. G. Beck ◽

T. G. Smith

Keyword(s):

Body Weight ◽

Sexual Dimorphism ◽

Body Condition ◽

Growth Curves ◽

Sampling Bias ◽

Total Weight ◽

Volume Index ◽

Asymptotic Growth ◽

Relationship Of ◽

The Relationship

We analysed the relationship of length to age in a sample of 204 harp seals collected in 1976–1979 and of 437 animals collected in 1988–1992, by fitting asymptotic growth curves. The only significant variations were in asymptotic length, which for 1988–1992 was significantly larger for males (170.4 cm) than for females (165.3 cm). This sexual dimorphism was not significant in 1976–1979, because the fitted asymptotic length of females varied greatly from year to year, being large in the 1976–1979 samples. An index of body condition (total weight/length2.6) and a volume index constructed by regressing body weight on length × axillary girth squared indicated that harp seals collected in 1988–1992 were in poorer condition than animals collected during 1976–1979. Although this suggests a decline in available resources, the possibility of differences arising from sampling bias cannot be excluded.

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Carapace Width -Weight Relationship Of Mud Crab Scylla Serrata (Forskal, 1775) Collected From Pulicat Lake, Tamilnadu, India

IRA-International Journal of Applied Sciences (ISSN 2455-4499) ◽

10.21013/jas.v5.n1.p5 ◽

2016 ◽

Vol 5 (1) ◽

pp. 29

Author(s):

V. Lakshme Gayathre ◽

S. Felix ◽

R. Durairaja

Keyword(s):

Body Weight ◽

Growth Pattern ◽

Tamil Nadu ◽

Carapace Width ◽

Scylla Serrata ◽

Mud Crab ◽

Pulicat Lake ◽

Weight Relationship ◽

Relationship Of ◽

The Relationship

<div>Mud crab Scylla serrata form an important fishery in the Pulicat lake, Tamilnadu. In the present study the relationship between carapace width and body weight were estimated as (Log W= -0.342438+2.914702). The estimated ‘a’ and ‘b’ value for carapace width and body weight were -0.342438 and 2.914702, respectively. The result showed an isometric growth pattern and significant differences were found between carapace width and body weight in the mud crab collected from Pulicat lake, Tamil Nadu, India. </div>

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Length-weight relationships and ponderal index of three reef fish (Teleostei: Labridae) off the Tanjung Tiram coast, Southeast Sulawesi, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d210402 ◽

2020 ◽

Vol 21 (4) ◽

Author(s):

Asriyana Asriyana ◽

Nur Irawati ◽

Halili Halili

Keyword(s):

Reef Fish ◽

Fisheries Management ◽

Ponderal Index ◽

Seagrass Beds ◽

Allometric Growth ◽

Weight Relationship ◽

Study Results ◽

Baseline Information ◽

Relationship Of ◽

First Time

Abstract. Asriyana A, Irawati N, Halili H. 2020. Length-weight relationships and ponderal index of three reef fish (Teleostei: Labridae) off the Tanjung Tiram coast, Southeast Sulawesi, Indonesia. Biodiversitas 21: 1279-1286. Parameters of length-weight relationship and ponderal index were estimated for first time for three reef fish (Labridae), Cheilinus trilobatus, Cheilinus chlorourus, and Choerodon anchorago, off the Tanjung Tiram coast, Indonesia. A total of 292 specimens (C. trilobatus 146 specimens; C. chlorourus 100 specimens; C. anchorago 46 specimens) were collected monthly in experimental gillnets in coral reefs and seagrass beds from January to June 2018. The length-weight relationship and ponderal index were calculated for each species. C. trilobatus showed total length and weight of 9.0-17.2 cm and 12.33-78.79 g, respectively, while C. chlorourus was 8.5-17.5 cm and 10.41-100.21 g, and C. anchorago 9.0-27.0 cm and 18.51-414.00 g. C. trilobatus showed negative allometric growth, while C. chlorourus and C. anchorago had isometric growth. The length-weight relationship of C. trilobatus followed the linear equation of W=0.10TL2.35, while C. chlorourus and C. anchorago fit to W=0.03TL2.83; W=0.03TL2.91 respectively. The highest ponderal index occurred in May for C. trilobatus and in June for C. chlorourus and C. anchorago indicating a peak of the spawning season. The study results could be used as baseline information for future fisheries management of the area.

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