Fish Biology
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Recent papers in Fish Biology
Since Darwin, biologists have been struck by the extraordinary diversity of teleost fishes, particularly in contrast to their closest " living fossil " holostean relatives. Hypothesized drivers of teleost success include innovations in... more
Flow Cytometry Protocols
Behavioural observations in the field of male Mediterranean damselfish Chromis chromis were combined with molecular analyses, using bi-parentally and maternally inherited markers, to investigate reproductive success patterns of... more
Atlantic salmon fry (0+) sampled from the River Alta exhibited only minor differences in stomach content weights and feeding rates throughout diel periods, but feeding rates were generally lowest at night. In contrast, salmon parr (1+ to... more
The dominant fatty acids in all neutral lipid fractions of non-water hardened eggs from two wild and one cultured stock of striped bass Morone saxatilis were the monoenes, 18 : 1n9/ n7>16 : 1n7>17 : 1. The dominant fatty acids in the... more
Spatial variation at the diallelic Me-2 locus in the Atlantic salmon, Salmo salar L., was analysed using data from 95 river basins. Gene diversity was apportioned as follows: 63% within samples, 20% between North America and Europe, 14%... more
The use of archival depth telemetry as a means of remotely assessing the reproductive rates of freeranging fishes is explored. This is achieved by electronically tracking the vertical movements of individual female small spotted catsharks... more
Rainbow darters Etheostoma caeruleum exposed to extracts from macerated skin of both conspecifics and of yoke darkers E. juliae responded with decreased activity. Both species have epidermal sacciform cells that are candidates as the... more
Several nuclear RFLP loci have been discovered recently that exhibit extensive allele frequency variation among Norwegian coastal and north-east Arctic populations of Atlantic cod Gadus morhua. One of these polymorphisms was detected by... more
Invasive species pose threats to either human health or inflict ecological and/or economic damage. The silver-cheeked toadfish (Lagocephalus sceleratus), a Lessepsian species, is one of the most harmful species in the Mediterranean Sea,... more
Filter feeding fishes possess several morphological adaptations necessary to capture and concentrate small particulate matter from the water column. Filter feeding teleosts typically employ elongated and tightly packed gill rakers with... more
Recently, a novel approach to a highly sensitive and quantitative detection of rare earth element (REE) ions including La3+, Eu3+ and Tb3+, by the polymerase chain reaction (PCR) technique, has been reported. The detection of REE ions is... more
The Oceanographic Museum of Monaco has undertaken a reorganisation and an evaluation of its natural history heritage, beginning with a revision of the chondrichthyan fish collection. Historical records account for 862 specimens, but a... more
Weight-length relationships, Condition factor and Hepatosomatic index of 480 mangrove gobies (Acentrogobius nebulosus and Asterropteryx semipunctata) were investigated. Fish samples were caught using shrimp and mosquito nets during the... more
Kojic acid (5-hydroxy-2-(hydroxymethyl)-4H-pyran-4-one) is a common contaminant of many food products which are part of humans or animals daily nutrition (sake, soy sauce, cereals, fodder and dairy products). This mycotoxin has... more
The appearance and proportions of morphologically distinct leucocytes (monocytes, thrombocytes, lymphocytes and diverse forms of granulocytes) encountered in the blood of four teleost species: coho salmon Oncorhynchus kisutch, Pacific... more
Ef®ciency of a nature-like bypass channel for sea trout (Salmo trutta) ascending a small Danish stream studied by PIT telemetry Un resumen en espanÄ ol se incluye detra s del texto principal de este artõ culo.
For intertidal fishes belonging to three species, the herbivore Scartichthys viridis (Blenniidae), the omnivore Girella laevifrons (Kyphosidae) and the carnivore Graus nigra (Kyphosidae), mass and body size relationships were higher in... more
The chorionase (hatching enzyme) of Fundulus heteroclitus digests the chorion by producing water soluble peptide fragments. The chorion may be labeled with 14C-iodoacetamide so that the soluble products of digestion are also labeled. We... more
We report the diversity and distribution of Francisella species in Norwegian coastal and fresh waters following a nationwide survey in which water and sediment samples were collected from locations spanning almost the entire Norwegian... more
The tidal migration, temporal and spatial patterns in feeding of the surface-swimming four-eyed fish Anableps anableps (Anablepidae) were studied in a macrotidal mangrove area in north Brazil to exemplify the ecology of a tropical... more
Optimal conditions for the induction of triploidy in two different species of tilapia, OreochromD mucus and Oreochrornis nilotirus, were determined using either heat-shock or cold-shock techniques. These trcatments were applied at... more
Lecithocladium angustiovum is identified from the stomach (87.33%) and the intestine (12.67%) of Indonesian short mackerel (Rastrelliger brachysoma). The description includes an elongated body; a mean total length of 1018.84 µm; and an... more
Myxosporidiosis due to Kudoa sp. has been recorded in gobies Pomatoschistus microps, collected from the Etang du Vaccarès (Rhô ne Delta, France). 1998 The Fisheries Society of the British Isles
In May 2005, an epidemic of the cestode Triaenophorus crassus occurred in the Salvelinus umbla population of Lake Grundlsee, an oligotrophic Austrian Alpine Lake. Based on catches with a standardized multi-mesh gillnet survey 53% of S.... more
Three components of the energy budget, consumption (C), production (P) and respiration ( R ) in juvenile roach and bleak kept under controlled food (Artemia salina, 2400 ind. 1-I) and temperature (20" C) conditions were measured in a... more
Previous studies indicated that a tropical freshwater eel Anguilla bicolor bicolor occurs in Africa, India, Sri Lanka, Bangladesh, Myanmar, Indonesia and Australia, but an intensive survey has indicated an extended distribution range for... more
The breeding cycle of an air-breathing Anabantid, Trichogaster pectoralis was studied in Malaysia. The species was found to breed all the year but with pronounced peaks of activity associated with the two wetter periods in the year. The... more
The coastal demersal sciaenid fish “pescadinha” Macrodon atricauda has been intensely fished alongsouthern Brazil in the last 50 years, a fact that resulted in the decrease in its abundance, maximum ageand landings, and an increase in its... more
Background: Collagen, the most abundant protein in the human body, and as an extracellular matrix protein, has an important role in the fiber formation. This feature of the collagen renders establishment of the structural skeleton in... more
Abstract: The goal of this study was to evaluate the Phytoplankton species diversity with the physicochemical parameters of a freshwater lake. The current research is based on a study of the phytoplankton diversity in a freshwater... more
A survey of the studies published in two leading fisheries journals revealed that the analysis and measurement of condition, based on length-weight data, has been performed using a wide variety of indices and statistical procedures. Eight... more
Comparative field observations of agonistic interactions in juvenile leaf-mimicking Platax orbicularis and Chaetodipterus faber (Ephippidae) were conducted in coastal waters of the Pacific and Atlantic Oceans. Similar agonistic behaviour... more
Although telemetered heart rate ( f H ) has been used as a physiological correlate to predict the metabolic rate (as oxygen consumption, Ṽ 2 ) of fish in the field, it is our contention that the method has not been validated adequately... more
This paper describes the gravel type and structure of brown trout spawning gravels in Teesdale, the flow characteristics of the spawning sites and the size of redds. Factors influencing redd size are investigated and it is concluded that... more
Eggs of 23 Characiformes and eight Siluriformes, belonging to nine families with diverse reproductive behaviour, were ultrastructurally analysed. The migratory species exhibited non-adhesive eggs, whereas, most of the sedentary species... more
Artificial breeding of fish is just one of the measures taken to moderate the negative effects of water pollution and river regulation upon the ichthyofauna ofcontinental rivers. Much has been achieved in the field of rearing salmonoids,... more
The San Francisco Estuary (SFE) is heavily influenced by anthropogenic activities, including historic and chronic contaminant inputs. These contaminants can adversely affect SFE fish populations, particularly white sturgeon, because they... more