scholarly journals Biological parameters of Luciobarbus callensis populates Beni-Haroun dam, north-eastern Algeria

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Houda Berrouk ◽  
Fatiha Sahtout ◽  
Chahinez Boualleg
Keyword(s):  
Growth Parameters ◽  
Economic Value ◽  
Age And Growth ◽  
Growth Data ◽  
Naked Eye ◽  
North Eastern ◽  
Major Process ◽  
Eastern Algeria ◽  
A Minor ◽  
Autochthonous Species

The fish age and growth data mainly assist many ichthyologists to understand the life history features of species and population. The growth is a major process of fish biology, and considered as one of the key processes of length-structured models of fishes. Thus,   the present study was devoted to studying the growth of an autochthonous species (Luciobarbus callensis), populating the dam of Beni-Haroun (Mila city, northeast Algeria), and is known by its socio-economic value and aquaculture interest. The study was conducted on a sampling of 257 fish individuals during the year 2015 – 2016. The age of Luciobarbus callensis was determined by using the described method or the scalimetry method, providing an easier sampling and reading procedures, and also a high precision.  Fish sexes were identified via the observation of gonads, by naked eye based on gonad shape and color, where the number of females was higher (165) than males (92). The obtained results revealed a maximum longevity as seven years of Luciobarbus callensis, and the determined growth parameters of the separated and combined fish sexes were found to be as follow: L∞= 47,37  cm ; K= 0,29  ; t0= -0,51  ; Ø’= 2,813 (females); L∞= 42,11  cm ; K =0,26  ; t0= -0,58 ; Ø’= 2,663 (males); and  L∞= 47 37  cm ; K= 0,20 ; t0= -0,75 ;  Ø’ =2,652 (combined sex). Moreover, the evolution of the total weight of fishes with respect to their size presents a minor allometry (b<3), (with or without sex distinction).

Age and growth of the narrow-barred Spanish Mackerel (Scomberomorus commerson Lacepede, 1880) in North-eastern Queensland waters

1992 ◽  
Vol 43 (5) ◽  
pp. 1269 ◽  
Author(s):  
GR McPherson
Keyword(s):  
Growth Parameters ◽  
Age And Growth ◽  
Differential Growth ◽  
Daily Growth ◽  
Spanish Mackerel ◽  
Growth Increments ◽  
Scomberomorus Commerson ◽  
North Eastern ◽  
Marginal Increment ◽  
Age Estimates

Whole otoliths were used to age Scomberomorus commerson in tropical Australian waters. Age estimates were validated by marginal-increment analysis of the first three otolith annuli. Confirmation of age estimates was provided by otolith daily growth increments and tag returns of known age. Differential growth in length, weight and longevity was evident between the sexes. The oldest male was 10 years old (127 cm FL, 19.0 kg). The oldest female was 14 years old (155 cm FL, 35 kg). The von Bertalanffy growth parameters L∞ and K were 127.5 cm and 0.25 for males and 155.0 cm and 0.17 for females.

Age and growth estimates of the Kwangtung skate Dipturus kwangtungensis in the waters of northern Taiwan

2015 ◽  
Vol 96 (7) ◽  
pp. 1395-1402 ◽  
Author(s):  
Shoou-Jeng Joung ◽  
Chien-Chi Chen ◽  
Kwang-Ming Liu ◽  
Tzu-Chi Hsieh
Keyword(s):  
Growth Parameters ◽  
Information Criterion ◽  
Growth Function ◽  
Age And Growth ◽  
Gompertz Function ◽  
Growth Band ◽  
Von Bertalanffy Growth Function ◽  
North Eastern ◽  
Robertson Function ◽  
Northern Taiwan

The age and growth of Kwangtung skate, Dipturus kwangtungensis, in the waters off northern Taiwan were estimated from 422 specimens collected between July 2006 and July 2008 at the Tashi fishing market in north-eastern Taiwan. The sexes-combined relationship between total length (TL) and centrum diameter (D) was estimated as follows: TL = 14.11D0.888 (N = 411, r2 = 0.94, P < 0.001). Growth band pairs (comprised of translucent and opaque bands) in vertebrae were determined to form once annually, based on the centrum edge analysis. Up to 14 band pairs were found for both sexes. The von Bertalanffy growth function (VBGF), two-parameter VBGF, the Robertson function, and the Gompertz function were used to fit the observed length-at-age data. The Akaike information criterion corrected indicated that the Gompertz function best fit the observed length at age data. Sex-specific growth functions were not significantly different; the sexes-combined growth parameters were estimated as follows: asymptotic length (L∞) = 96.7 cm TL, growth coefficient (kG) = 0.144 year−1 and constant (t0) = 5.45 year (N = 364, P < 0.01).

Relationships amongst length, weight and growth of north-eastern New Zealand reef fishes

1998 ◽  
Vol 49 (3) ◽  
pp. 255 ◽  
Author(s):  
Richard B. Taylor ◽  
Trevor J. Willis
Keyword(s):  
New Zealand ◽  
Growth Parameters ◽  
Reef Fishes ◽  
Fish Growth ◽  
Regression Equations ◽  
Strong Positive Correlation ◽  
Teleost Fishes ◽  
Growth Data ◽  
North Eastern ◽  
Adult Body

This paper examines relationships amongst length, weight and growth parameters of teleost fishes found in shallow north-eastern New Zealand waters. Length–weight equations are presented for 51 species. Fish growth was described using the von Bertalanffy growth parameters L∞ (asymptotic length) and K (growth constant), which were available for 19 species. Literature-derived values for adult body length showed a strong positive correlation with L∞ (r2 = 0.89), which, after conversion to weight, was strongly negatively correlated with K (r 2 = 0.80). Regression equations describing these relationships can be used to predict L∞ and K for fish species lacking such growth data.

Age and growth of the forkbeard Phycis phycis (Gadidae) from the Azorean archipelago, North Atlantic

2009 ◽  
Vol 89 (3) ◽  
pp. 629-633 ◽  
Author(s):  
Ana Rita Costa Abecasis ◽  
Angela Canha ◽  
Dália Reis ◽  
Mário Rui Pinho ◽  
João Gil-Pereira
Keyword(s):  
North Atlantic ◽  
Preparation Method ◽  
Growth Parameters ◽  
Age And Growth ◽  
Von Bertalanffy ◽  
Target Species ◽  
North Eastern ◽  
Main Target ◽  
Slow Growing ◽  
Phycis Phycis

The forkbeard Phycis phycis is one of the main target species of the demersal fishery in the Azores, north-eastern Atlantic. Age and growth of the forkbeard were studied using 477 otoliths from individuals caught between April 2000 and August 2004. Otoliths were burned and sectioned, a preparation method that improved the easiness of readings. Individuals ranged from 21 to 71 cm in total length, and their estimated ages between 2 and 18 years old. Forkbeard is a relatively slow growing, long lived species, that does not show sexual dimorphism in growth. The von Bertalanffy growth parameters estimated for the Azorean forkbeard were L∞ = 79.64 cm, k = 0.09 yr−1 and t0 = −1.88 years.

Age and growth of Alitta succinea (Polychaeta; Nereididae) in a tropical estuary of Brazil

2013 ◽  
Vol 93 (8) ◽  
pp. 2123-2128 ◽  
Author(s):  
C.S.C. Sette ◽  
R.A. Shinozaki-Mendes ◽  
T.L. Barros ◽  
J.R.B. Souza
Keyword(s):  
Growth Parameters ◽  
Length Distribution ◽  
Information Criteria ◽  
Age And Growth ◽  
Distribution Data ◽  
Tropical Estuary ◽  
Von Bertalanffy ◽  
Eastern Brazil ◽  
North Eastern ◽  
Shallow Subtidal

The aim of this work was to study the dynamics of Alitta succinea population growth in a tropical estuary. The organisms were collected in the polyhaline area of Pina Basin, north-eastern Brazil, in lower and shallow subtidal consolidated substrates, from October 2009 to March 2011. Fifteen samples with a size of 0.01 m2 were collected every month. A total of 2064 A. succinea individuals were measured for growth analysis, and the measure used was the length from prostomium to the 25th setiger. Growth parameters were estimated by the frequency–length distribution data from three different functions (i.e. von Bertalanffy, Gompertz and Richards). The differences in the densities of A. succinea were significant between the months of the dry and the rainy season, with the rain pattern being the factor that most affects the A. succinea life cycle. According to Akaike information criteria, the von Bertalanffy and Gompertz models were the ones that presented the best fit with the growth curve of A. succinea for the studied period. Using the Bhattacharya method for the analysis of modal progression, we identified eight cohorts. The lowest recruitment values were found in July and August 2010, respectively, and the remaining months had numbers of recruits that were representative of the total population. The growth performance index (Ø′) found was 2.86. The maximum longevity indicates that specimens of A. succinea live between 586 and 953 d, and the instantaneous mortality rate (Z) is 1.53 yr−1.

Age and growth of the Japanese butterfish Psenopsis anomala in the waters off north-eastern Taiwan

2020 ◽  
Vol 100 (3) ◽  
pp. 427-433 ◽  
Author(s):  
Shyh-Bin Wang ◽  
Li-Yu Hung ◽  
Kwang-Ming Liu
Keyword(s):  
Growth Parameters ◽  
Linear Method ◽  
Growth Function ◽  
Age And Growth ◽  
Trawl Fishery ◽  
Age Class ◽  
The North ◽  
North Eastern ◽  
Marginal Increment ◽  
One Year

AbstractThe catch of Japanese butterfish, Psenopsis anomala in Taiwan is greater than those of any other nation; however, the biology, particularly the age and growth, of this economically important fish species is little known. This study describes the age and growth of P. anomala based on 734 specimens (340 females, 363 males, 31 unsexed) caught by trawl fishery in the north-eastern waters off Taiwan from March 2007 to July 2008. The age of specimens was estimated by counting the growth annuli in sagittal otoliths. The periodicity of annulus deposition on otolith was estimated to be one year with opaque zone deposited between July and August based on marginal increment analysis. The maximum age for both sexes was estimated to be ~4. The female portion of the population was dominated by the 3+ age class, while the male portion was dominated by the 2∞ age class. The parameters of the von Bertalanffy growth function with standard error estimated based on the observed length at age using a non-linear method are as follows: L∞ = 25.47 ± 0.65 cm, k = 0.30 ± 0.03 year−1, and t0 = −1.84 ± 0.16 year for females (n = 350), and L∞ = 22.39 ± 0.45 cm, k = 0.46 ± 0.04 year−1, and t0 = −1.38 ± 0.13 year for males (n = 378). The growth performances of P. anomala reported from different geographic regions were compared, and the potential influences of sample size distribution on the estimated growth parameters were further discussed.

Demography of the Agassiz's parrotfish Sparisoma frondosum (Agassiz, 1831) in north-eastern Brazil

2015 ◽  
Vol 96 (5) ◽  
pp. 1157-1166 ◽  
Author(s):  
Rosângela Lessa ◽  
Camila R. Da Silva ◽  
June F. Dias ◽  
Francisco M. Santana
Keyword(s):  
Growth Parameters ◽  
Growth Curves ◽  
Information Criterion ◽  
Age And Growth ◽  
Von Bertalanffy ◽  
Eastern Brazil ◽  
North Eastern ◽  
Marginal Increment ◽  
First Maturity ◽  
Size At First Maturity

Age and growth of Agassiz's parrotfish Sparisoma frondosum captured off Brazil (Pernambuco) were estimated using sagittal otoliths from 251 specimens. Sex of each specimen was determined and showed that 130 specimens were females (13.1 to 36.8 cm TL) and 121 were males (17.5 to 36.6 cm TL). The otolith marginal increment analysis indicated a single translucent ring formed every year. Parameters of growth curves were derived for the von Bertalanffy (VBGF) and Gompertz models. Based on the Akaike information criterion (AIC), both models were suitable for describing the growth of this species. VBGF parameters were estimated for males L∞ = 39.74 cm TL, K = 0.22, t0 = −1.63 years, females L∞ = 32.38 cm TL, K = 0.44; t0 = −0.23 years; and for the sexes combined L∞ = 33.66 cm TL, K = 0.41, t0 = −0.27 years. The study showed that 55% of individuals were 3 and 4 years of age, with maximal age of 9 years. Mature females (>17.6 cm TL) accounted for 45% of the sample. The age at first maturity for females was 1.6 years. For males the size at first maturity was not determined as immature individuals were not present in the overall sample. Also, primary males (PM) and specimens with gonads undergoing sexual transition were not found. The age structure and growth parameters for S. frondosum are an important contribution to the assessment of the state of exploitation of this species.

Ground beetles (Coleoptera: Carabidae) assemblages in two agricultural landscapes in North-Eastern Algeria

2014 ◽  
Vol 40 (2) ◽  
pp. 5-16 ◽  
Author(s):  
Yasmina Saouache ◽  
Salaheddine Doumandji ◽  
Nadia Ouchtati
Keyword(s):  
Ground Beetles ◽  
Agricultural Landscapes ◽  
North Eastern ◽  
Eastern Algeria

Environmental determinants of mayfly assemblages in the Seybouse River, north‐eastern Algeria (Insecta: Ephemeroptera)

Biologia ◽  
2021 ◽  
Author(s):  
Boudjéma Samraoui ◽  
Zineb Bouhala ◽  
Khemissa Chakri ◽  
Joaquín Márquez-Rodríguez ◽  
Manuel Ferreras-Romero ◽  
...  
Keyword(s):  
Environmental Determinants ◽  
North Eastern ◽  
Eastern Algeria

Age and growth of the shortfin mako (Isurus oxyrinchus) in the south-eastern Pacific off Chile

2009 ◽  
Vol 60 (5) ◽  
pp. 394 ◽  
Author(s):  
Francisco Cerna ◽  
Roberto Licandeo
Keyword(s):  
Growth Parameters ◽  
Eastern Pacific ◽  
Age And Growth ◽  
The South ◽  
Age Classes ◽  
Vertebral Centra ◽  
South Eastern ◽  
Isurus Oxyrinchus ◽  
Shortfin Mako ◽  
Longline Fisheries

The shortfin mako, Isurus oxyrinchus, is a large pelagic shark with a widespread global distribution. However, very little is known about most aspects of this species for the south-eastern Pacific. In the present paper, the age and growth parameters of the shortfin mako, caught by Chilean swordfish longline fisheries from 2004 to 2005, are reported. Ages were estimated by counting band-pairs from sections of vertebral centra from 547 individuals, ranging from 76 to 330 cm in total length (TL). Trends in the proportion of opaque edges for all ages combined and grouped into ages 0–6 and 7–26 years indicated that they are formed during summer and showed that annually, one band-pair is formed in the vertebrae of shortfin makos. Modal-progression analysis was used to verify the first three age classes (ages 0–2 years). For both sexes, the oldest estimated age was 25+ years. Von Bertalanffy growth parameters were estimated at L∞ = 325.29 cm TL, K = 0.076 year–1 and t0 = –3.18 years for females and L∞ = 296.60 cm TL, K = 0.087 year–1 and t0 = –3.58 years for males. The results indicated that this species is highly vulnerable to exploitation and, thus, urgent conservation measures are required.

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