Weight-length relationships of some fish species of the Iberian Peninsula

Oscoz, Javier; Campos, Francisco; Escala, M. C.

doi:10.1111/j.1439-0426.2004.00587.x

Cited by 96 publications

(69 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Length-weight based condition indices are the most frequently applied because the data are relatively easy, efficient, and cost-effective to collect. Length-weight relationships have thus been used extensively in fisheries biology to convert growthin-length to growth-in-weight equations for use in stock assessments (Oscoz et al 2005) and to provide an index of condition (Le Cren 1951;Bolger and Connolly 1989).…”

Section: Introductionmentioning

confidence: 99%

Fish condition in introduced tilapias of Ugandan crater lakes in relation to deforestation and fishing pressure

2009

View full text Add to dashboard Cite

This study identifies environmental predictors of the condition of two introduced tilapia species (Oreochromis leucostictus and Tilapia zillii) that are known to have divergent trophic niches (planktivore and herbivore, respectively) in 17 crater lakes in western Uganda. We asked whether fish condition differs among lakes characterized by differences in fishing pressure and catchment deforestation; and we related relative condition factor to gradients of environmental variation across lakes. Lakes characterized by severe catchment deforestation tended to be lakes with high fishing pressure, so it was difficult to explore independent and interactive effects. However, mean relative condition factor was higher in populations with high fishing pressure compared to populations with low fishing pressure for both O. leucostictus and T. zillii. The condition of O. leucostictus populations was higher in lakes with severely deforested catchments; but mean relative condition factor of T. zillii did not differ between deforestation categories. Principal components analysis (PCA) was used to describe the major environmental gradients of variation among the lakes; and PCA factor scores were regressed against relative fish condition. The association between fish condition and environmental gradients was stronger for O. leucostictus than for T. zillii. For O. leucostictus, fish condition was related to PC1 (43% of the variance) and factors that loaded most heavily included Chl-a, water transparency, lake area and depth, suggesting higher condition in lakes characterized by higher primary productivity and smaller size. For T. zillii, PC3 (11%) was the only axis related to fish condition; and factors that loaded most heavily included lake area (positive), and conductivity and total nitrogen (negative). Some of the larger lakes are characterized by higher availability of macrophytes that may positively affect the food base for T. zillii.

show abstract

Section: Introductionmentioning

confidence: 99%

Fish condition in introduced tilapias of Ugandan crater lakes in relation to deforestation and fishing pressure

2009

View full text Add to dashboard Cite

show abstract

“…Značajno je u određivanju težine i biomase kada je kao pokazatelj kondicije dostupna samo dužina. Takođe, ovaj odnos omogućava poređenje rastenja vrste u različitim regionima (Oscoz et al, 2005). U izučavanju ekologije pojedinih vrsta riba, tempo individualnog rastenja ukazuje na trofički stupanj staništa.…”

Section: Dužinsko I Težinsko Rastenjeunclassified

Ecological characteristics and morphological-genetic differentiation in populations of European mudminnoow (Umbra krameri Walbaum, 1792) from Ba?ka, Ma?va and Semberija

Sekulić¹

View full text Add to dashboard Cite

“…These results suggest that this fish species can adapt well to Southeast Asian mangrove areas and can be a potential fish for aquaculture in future. Other fish species such as Sardinella sindensis, Liza carinata, Alepes kleinii and Alepes melanoptera [18], Barbatula barbatula [25], Periophthalmus barbarus [19], and Boleophthalmus boddarti [17] 03±0.02, t-test, df=365, P>0.05), and was close to 1. It suggests that both male and female fish lived well in environmental conditions of this study area, and sexual maturation did not affect on the K values of this fish.…”

Section: Length-weight Relationships and The Growth Patternmentioning

confidence: 99%

Growth and body condition variation of the giant mudskipper Periophthalmodon schlosseri in dry and wet seasons

Dinh¹

2016

V J Bio

View full text Add to dashboard Cite

ABSTRACT:This study provides information on the growth and body condition variation of the giant mudskipper Periophthalmodon schlosseri between gender and fish size during dry and wet seasons. A total of 367 fish specimens was collected along mudflat and mangrove forest in Tran De from May 2014 to April 2015. The sex ratio of this fish was nearly 1:1. This species showed isometric growth as its slope value was close to the standard threshold (= 3), and its length-weight relationship was similar in both dry and wet seasons. Although the condition factor of this mudskipper varied with seasonal change and fish size, it was similar in males and females and close to well-being value (= 1). These results indicated that this fish lives well and can become a potential fish for aquaculture in this area, and provides useful information for our knowledge to other gobiid fishes.

show abstract

Weight-length relationships of some fish species of the Iberian Peninsula

Cited by 96 publications

References 6 publications

Fish condition in introduced tilapias of Ugandan crater lakes in relation to deforestation and fishing pressure

Fish condition in introduced tilapias of Ugandan crater lakes in relation to deforestation and fishing pressure

Ecological characteristics and morphological-genetic differentiation in populations of European mudminnoow (Umbra krameri Walbaum, 1792) from Ba?ka, Ma?va and Semberija

Growth and body condition variation of the giant mudskipper Periophthalmodon schlosseri in dry and wet seasons

Contact Info

Product

Resources

About