The search for phylogenetic signal in morphological traits using geometric morphometrics represents a powerful approach to estimate the relative weights of convergence and shared evolutionary history in shaping organismal form. We assessed phylogenetic signal in the form of ventral and dorsal haptoral anchors of 14 species of Ligophorus occurring on grey mullets (Osteichthyes: Mugilidae) from t...

Dispersant use in nearshore areas is likely to increase the exposure of aquatic organisms to petroleum. To measure the toxicity of this controversial response technique, golden grey mullets (Liza aurata) were exposed to mechanically dispersed oil, chemically dispersed oil, dispersant alone in seawater, water-soluble fraction of oil and to seawater as a control treatment. Several biomarkers were...

1 of 15 14/03/2008 1:19 PM Measuring Social Capital in a Networked Housing Estate by Denise Meredyth, Liza Hopkins, Scott Ewing and Julian Thomas This paper describes the construction of 'Reach for the Clouds', an inventive scheme to build a resident-maintained 'networked community' in Atherton Gardens, an ethnically-diverse, low-income, high rise public housing estate in Melbourne, Australia. ...

Morphometric of examination gonads Liza carinata were performed for one year (October 1995 – September 1996) to study the maturation development. Monthly variation in gonado somatic index (GSI) noticed, that started with low values during October and November. Significant increase was recorded period December - April peak February (3.59 males & 9.33 females) followed by a significant declin...

The paper reviews all the reports concerning parasitic fauna of three species carps cultured in Al-Furat fish farm, Babylon province, mid Iraq. These fishes included common carp (Cyprinus carpio), grass (Ctenopharyngodon idella) and silver (Hypophthalmichthys molitrix) as well mullet (Liza abu) found same farm. 60 valid parasite species: ten protozoans, myxozoans, 29 monogeneans, one trematode,...

The family Mugilidae comprises mainly coastal marine species that are widely distributed in all tropical, subtropical and temperate seas. Mugilid species are generally considered to be ecologically important and they are a major food resource for human populations in certain parts of the world. The taxonomy and systematics of the Mugilidae are still much debated and based primarily on morpholog...

Molecular polymorphisms (allozyme and amplified fragment length polymorphisms (AFLP)) were investigated in the mullet specie’s Liza ramada and Liza saliens to determine levels of genetic variability and assess possible correlations between the population genetic structure and the specie’s adaptability to shallow water environments. The thinlipped (L. ramada) and the sharpnose (L. saliens) mulle...

A study of some osteological characters, namely, the parapophysial stay on the trunk vertebra, second vertebral processes, basioccipital processes, and post-zygapophysial hooks, as basic characteristics for the generic appraisal of grey mullets has revealed that these parameters can be used to separate the genera Liza, V^alamugil and Ellochelon. The existence of these genera is questioned by di...

Gauss's competitive exclusive principle states that two competing species having analogous environment cannot usually occupy the same space at a time but in order to exploit their common environment in a different manner, they can co-exist only when they are active in different times. On the other hand, several studies on predators in various natural and laboratory situations have shown that co...