Seasonality Of The Monogenean From Some Perciform Fishes İn Iraqi Marine Waters

Azizz, Suzan A. Al; Al-Niaeem, Khalidah S.; Hasson, Hayder A.H. Al

doi:10.9790/2380-100501103105

Cited by 3 publications

(2 citation statements)

References 9 publications

(3 reference statements)

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“…LWR is used to compute the Kfactor which is important in determining the performance, survivorship and reproductive success in a fish population [17]. Also, the Kfactor indicates the amount of energy available to an individual allocated to various life functions such as reproduction, foraging and survival [18] and provides information when comparing two populations of fish living in certain feeding, density and climatic conditions [19]. Though fish size and LWR is used to predict potential yield and size at capture for optimum yield, management parameters are directly related to length of fish for differentiating populations.…”

Section: Introductionmentioning

confidence: 99%

Length-Weight Relationship and Condition Factor of Chrysichthys longidorsalis (Risch & Thys Van Den Audenaerde, 1981) Landed at the Sanaga River Basin, Cameroon

Achu

Tiogué

Awah-Ndukum

2023

AJOB

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Given the lack of adequate information on morphometric characteristics of wild fish in Cameroon, the present research was carried out from November 2019 to October 2020 to analyse length - weight relationship and Fulton’s condition factor of Chrysichthys longidorsalis (Risch & Thys van den Audenaerde, 1981) to provide baseline information for its fishery management and aquaculture development. A total of 451 sampled C. longidorsalis captured from Sanaga River basin of the Centre Region in Cameroon were identified and lengths and weights measured. Mean standard length, total length and total weight of samples were 18.13 ± 7.32 cm, 23.91 ± 9.37 cm and 305.15 ± 315.66 g respectively. The males were longer and heavier than females (p<0.05). High correlation coefficient (>0.9) and coefficient of determination (R2 = 0.9516) revealed strong positive relationship (>95%) between fish standard length and total weight. The growth coefficient (b) values, were less than 3 (2.7234) suggesting a negative allometric growth pattern. Though the condition factor was higher (p<0.05) in males and during the dry season than in females and during the rainy season, the overall value was 5.85 ± 11.44, indicating that the fish had good adaptation to conditions of the Sanaga River basin. This study serves as useful reference for sustainable management and conservation of fish resources in Cameroonian waters.

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Section: Introductionmentioning

confidence: 99%

Length-Weight Relationship and Condition Factor of Chrysichthys longidorsalis (Risch & Thys Van Den Audenaerde, 1981) Landed at the Sanaga River Basin, Cameroon

Achu

Tiogué

Awah-Ndukum

2023

AJOB

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“…Individual condition is an important component in determining performance, survivorship and reproductive success in a fish [14]. In energetic terms, condition factor is the amount of energy available to an individual which may be allocated to various life functions such as reproduction, foraging and over-winter survival [15]. However, there is dearth of information on the characteristic relationship between lengthweight and condition factor and the how parasitic infections influence the relationships in cultured fishes in Cameroon.…”

Section: Introductionmentioning

confidence: 99%

Impact of Ectoparasites on Length-Weight Ratio and Condition Factor of Cultured Fish Species in the West Region of Cameroon

Ngueguim,

Kouam,

Tiogue

et al. 2020

AJRAVS

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Aims: This study aims to analyse the effect of ectoparasite infections on length-weight relationships and condition factor of cultured fishes in the West region of Cameroon. Study Design: A stratified cross-sectional study was used to select fish farms and individual fish per farm. Place and Duration of Study: Fish farms in the West region of Cameroon between December 2018 and December 2019. Methodology: Sampled fishes were identified and examined from ectoparasites and pathologies according to standard procedures. Their lengths and weights were measured to determine their

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Morphological identification tools of Pseudodiscocotyla opakapaka and Kannaphallus raphidium (Monogenea: Polyopisthocotylea) from Acanthopagrus bifasciatus (Spariformes: Sparidae)

Alojayri,

Al-Shaebi,

Al-Quraishy

et al. 2024

Arq. Bras. Med. Vet. Zootec.

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Fish is considered one of the nutritive protein sources affected by various parameters including parasitism. Monogeneans are an ectoparasitic species infecting fish’s skin, fins, and gills. During the present investigation, a total of 40 fish samples of the twobar seabream, Acanthopagrus bifasciatus (Perciformes: Sparidae) were collected from the coastal region along the Arabian Gulf (Saudi Arabia). The collected fish samples were dissected and examined for the presence of monogenetic parasites. The recovered parasite species were collected and identified by applying light microscopic examinations. Five out of 40 (12.5%) fish samples were found to be naturally infected with 2 monogenetic species belonging to two families within Polyopisthocotylea (order Mazocraeidea). They recorded two parasite species, namely, Pseudodiscocotyla opakapaka Yamaguti, 1965 and Kannaphallus raphidium Kritsky and Martin, 2023 belonging to families Discocotylidae and Heteraxinidae, respectively. Morphological and morphometric characterizations revealed some differences between the present species and others detected previously. The present findings of P. opakapaka and K. raphidium in A. bifasciatus (fish host) of the Arabian Gulf represent a new host and geographical record for these parasites. Furthermore, more studies are required to include the advanced molecular tools for these monogenetic species and their associated histopathological effects on the infection site.

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Seasonality Of The Monogenean From Some Perciform Fishes İn Iraqi Marine Waters

Cited by 3 publications

References 9 publications

Length-Weight Relationship and Condition Factor of Chrysichthys longidorsalis (Risch & Thys Van Den Audenaerde, 1981) Landed at the Sanaga River Basin, Cameroon

Length-Weight Relationship and Condition Factor of Chrysichthys longidorsalis (Risch & Thys Van Den Audenaerde, 1981) Landed at the Sanaga River Basin, Cameroon

Impact of Ectoparasites on Length-Weight Ratio and Condition Factor of Cultured Fish Species in the West Region of Cameroon

Morphological identification tools of Pseudodiscocotyla opakapaka and Kannaphallus raphidium (Monogenea: Polyopisthocotylea) from Acanthopagrus bifasciatus (Spariformes: Sparidae)

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