Reproduction of French angelfish Pomacanthus paru (Teleostei: Pomacanthidae) and implications for management of the ornamental fish trade in Brazil

2016 ◽  
Vol 67 (5) ◽  
pp. 586 ◽  
Author(s):  
Caroline Vieira Feitosa ◽  
Simone Marques ◽  
Maria Elisabeth de Araújo ◽  
Beatrice Padovani Ferreira
Keyword(s):  
Ornamental Fish ◽  
Aquarium Trade ◽  
Size At Maturity ◽  
Size Dimorphism ◽  
Total Length ◽  
Management Measures ◽  
Ornamental Fish Trade ◽  
Males And Females ◽  
Catch Rates ◽  
Fish Trade

Pomacanthus paru is one of the five most exported species in the Brazilian aquarium trade and is frequently caught by traps as bycatch. The present study is the first to describe the reproductive biology of this species in the South Atlantic. The population of P. paru was gonochoristic and presented size dimorphism in the larger classes, with males attaining larger sizes than females. Differences in sex ratios for size classes were recorded over the range 35–45-cm total length. At the spawning stage females were more abundant than males, suggesting that spawning females may be more vulnerable to trap fishing during this period. The size at maturity was 23.30-cm total length for females. Males and females of P. paru at the spawning and spent stages were observed nearly every month. The susceptibility of this species to trap fishing indicates that management of the aquarium trade through quotas of juvenile captures alone may be not effective. Thus, management measures should focus on controlling the amount harvested by monitoring current catch rates and should consider implementing trap-free areas in important spawning grounds.

A rapid new method for assessing sustainability of ornamental fish by-catch from coral reefs

2008 ◽  
Vol 59 (12) ◽  
pp. 1092 ◽  
Author(s):  
Caroline Vieira Feitosa ◽  
Beatrice Padovani Ferreira ◽  
Maria Elisabeth de Araújo
Keyword(s):  
Ornamental Fish ◽  
Mortality Index ◽  
Ornamental Fish Trade ◽  
Reef Environments ◽  
High Species Richness ◽  
By Catch ◽  
Catch Rates ◽  
Fish Trade ◽  
Relative Vulnerability ◽  
Population Resilience

The ornamental fish trade has considerable potential for damaging reef environments. Nearly 120 species are currently harvested in the Brazilian trade and little attention has been paid to the effects of the accidental catch of these species. Records of ornamental fish by-catch and the susceptibility and resilience of species from the major Brazilian families in the aquarium trade were examined to test a method and determine the sustainability of these catches. Each species was assessed based on two groups of criteria: (1) relative vulnerability to capture; and (2) population resilience to mortality due to fishing efforts. Each species was also ranked (1–3) for criteria regarding ecology, biology, catchability, numbers of individuals exported by aquarium companies and mortality index. These criteria were then weighted and each species rank in the two groups of criteria was plotted. Nineteen species from 10 families were recorded. The species least likely to have sustainable catch rates included Holacanthus tricolor, H. ciliaris, Chaetodon striatus and Pomacanthus paru. This approach is a useful alternative for management efforts and the assessment of catch sustainability in newly developed multi-species fisheries with limited available data, which occur in areas of high species richness such as reefs.

scholarly journals Infestations Myxobolus sp. in Gills Koi (Cyprinus carpio) That No Clinical Symptoms

2020 ◽  
Vol 11 (1) ◽  
pp. 20-25
Author(s):  
Zulkifli ◽  
Novia Christi Prihartini
Keyword(s):  
Water Quality ◽  
Life Cycle ◽  
Clinical Symptoms ◽  
Water Quality Management ◽  
Ornamental Fish ◽  
Parasitic Diseases ◽  
North Sulawesi ◽  
Ornamental Fish Trade ◽  
The Right ◽  
Fish Trade

Ornamental fish trade between regions in Indonesia allows the transfer of disease, especially if the disease does not show clinical symptoms in fish traded. Koi fish in Tahuna, North Sulawesi, mostly come from the area of ​​East Java, which is one area with many cases of myxobolusis. In addition, the potential for parasitic diseases that come along when koi fish are brought between areas cannot be avoided, because the examination of parasites, especially Myxobolus sp. no longer listed in the regulation as a quarantine inspection requirement. The purpose of this study was to see the Myxobolus sp infestation that infected koi in Tahuna, North Sulawesi, although there were no clinical symptoms using conventional techniques and histopathology. The results of the examination showed Myxobolus spore infestation on the gills of the koi, although the amount was not much, both conventional and histopathological techniques. This shows that our level of awareness of the types of parasites that can infect fish is still lacking. Myxobolus sp is only transmitted through the spore stage back and forth; there is no horizontal or vertical transmission in fish or tubifex T worm populations. More knowledge regarding the life cycle of the Myxobolus sp. in order to obtain the right handling to deal with outbreaks, especially water quality management at the location of the cultivation.

How should we monitor welfare in the ornamental fish trade?

2021 ◽  
Author(s):  
Megan Jones ◽  
Mhairi E. Alexander ◽  
Donna Snellgrove ◽  
Peter Smith ◽  
Sam Bramhall ◽  
...  
Keyword(s):  
Ornamental Fish ◽  
Ornamental Fish Trade ◽  
Fish Trade

scholarly journals Parasite detection in the ornamental fish trade using environmental DNA

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
A. Trujillo-González ◽  
R. C. Edmunds ◽  
J. A. Becker ◽  
K. S. Hutson
Keyword(s):  
Environmental Dna ◽  
Ornamental Fish ◽  
Parasite Detection ◽  
Ornamental Fish Trade ◽  
Fish Trade

scholarly journals Reproductive biology of the Brazilian sharpnose shark (Rhizoprionodon lalandii) from southeastern Brazil

2007 ◽  
Vol 64 (9) ◽  
pp. 1829-1835 ◽  
Author(s):  
Fabio S. Motta ◽  
Rafael C. Namora ◽  
Otto B. F. Gadig ◽  
F. M. S. Braga
Keyword(s):  
Reproductive Biology ◽  
Positive Relationship ◽  
Ovarian Follicles ◽  
Southeastern Brazil ◽  
Brazilian Coast ◽  
Marine Science ◽  
Size At Maturity ◽  
Total Length ◽  
Males And Females ◽  
Using Data

Abstract Motta, F. S., Namora, R. C., Gadig, O. B. F., and Braga, F. M. S. 2007. Reproductive biology of the Brazilian sharpnose shark (Rhizoprionodon lalandii) from southeastern Brazil. – ICES Journal of Marine Science, 64: 1829–1835. The reproductive biology of the Brazilian sharpnose shark, Rhizoprionodon lalandii, off southeastern Brazil was investigated using data from gillnet landings. The size-at-maturity for males and females was estimated to be 59 and 62 cm total length (LT), respectively. Ovarian fecundity ranged from 3 to 7 follicles (mean = 4.54), and uterine fecundity from 1 to 5 embryos (mean = 3.3). There was a slight positive relationship between female LT and the number of ovarian follicles, but uterine fecundity was not related to female LT. Embryonic growth is fast following fertilization during summer and autumn. Gestation requires 11–12 months, and peak parturition is between August and September. A comparison of size-at-maturity between animals from northeastern and southeastern Brazil suggests the existence of at least two stocks of R. lalandii along the Brazilian coast.

scholarly journals Indigenous ornamental freshwater ichthyofauna of the Sundarban Biosphere Reserve, India: status and prospects

2016 ◽  
Vol 8 (9) ◽  
pp. 9144 ◽  
Author(s):  
Sandipan Gupta ◽  
Sourabh Kumar Dubey ◽  
Raman Kumar Trivedi ◽  
Bimal Kinkar Chand ◽  
Samir Banerjee
Keyword(s):  
Fish Species ◽  
Biosphere Reserve ◽  
Iucn Red List ◽  
Ornamental Fish ◽  
The World ◽  
Ornamental Fish Trade ◽  
Sundarban Biosphere Reserve ◽  
Near Future ◽  
Fish Trade ◽  
Near Threatened

Ornamental fishes are the most popular pet throughout the world and high demand for these fishes has made them an important component of the world fish trade. India contributes a very meager percentage to the world ornamental fish trade; but considering the high ichthyofaunal diversity it has the potential to compete with the world’s leading ornamental fish producers in the near future. Sundarban Biosphere Reserve has abundant waterbodies with rich fish diversity. Although some research has been carried out on ichthyofaunal resources of the Sundarban; detailed documentation on freshwater indigenous ornamental ichthyofaunal resources of this region is still not available. To fill this knowledge gap, the present study has been conducted to list the indigenous ornamental ichthyofaunal resources of the Sundarban Biosphere Reserve along with their conservation status and their prospective utilization for improved livelihood of local communities. Eighty four species belonging to 11 orders, 28 families and 59 genera were collected from the study area with species representing the order Cypriniformes dominating the ichthyofauna. Nine species have been listed as Near Threatened in the IUCN Red List of Threatened Species™. Indigenous fish species of the Sundarban having great potential to support domestic as well as the international ornamental fish trade from India in near future. The ornamental fish species would also be able to generate alternate livelihood options for the impecunious communities of the Sundarban. However, serious concern must also be paid to the conservation of these fish species as some of them are under near threatened categories of IUCN Red list. 

scholarly journals Microhabitat association and population status of the Luwuk introduced Banggai cardinalfish (Pterapogon kauderni Koumans, 1933) population

DEPIK ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 251-259
Author(s):  
Novalina Serdiati ◽  
Abdul Gani ◽  
Deddy Wahyudi ◽  
Abigail Mary Moore ◽  
Samliok Ndobe
Keyword(s):  
Sea Urchins ◽  
Action Plan ◽  
Ornamental Fish ◽  
Trade Routes ◽  
Introduced Populations ◽  
Ornamental Fish Trade ◽  
Endemic Population ◽  
Conservation Concern ◽  
Central Sulawesi ◽  
Fish Trade

The Banggai cardinalfish Pterapogon kauderni is the Indonesian national marine ornamental fish mascot, and an object of national and international conservation concern. The endemic population of this species is limited to the Banggai Archipelago in Central Sulawesi, Indonesia and a few nearby islands in North Maluku. In addition, introduced populations have become established, mainly along ornamental fish trade routes. The National Action Plan for Banggai Cardinalfish Conservation (NAP-BCFC) calls for monitoring and management of all P. kauderni populations. A survey of the Luwuk introduced P. kauderni population was carried out in October 2021.   Data were collected at three sites with established P. kauderni populations: the ferry harbour, public harbour (Teluk Lalong) and a recreational area on the nearby coast (Kilo 5). P. kauderni were recorded by microhabitat association and size class (recruits, juveniles, adults). Data collected were compared with data from previous surveys where available. With the exception of one group in a sea anemone at Kilo 5, all P. kauderni were associated with Diadema sea urchins (D. setosum at all sites; D. savignyi at Kilo 5). At Kilo 5 P. kauderni the population structure indicates the possible capture of market-sized juveniles. Overall abundance was also lower compared to the polluted but unfished harbours. The proportion of recruits was significantly negatively correlated with the ratio of adult P. kauderni to Diadema urchins. The results will inform regional legislation currently in preparation to support sustainable management of P. kauderni populations, habitat and microhabitat in Central Sulawesi, as well as contributing to NAP-BCFC targets.Keywords:Banggai cardinalfishEndangered speciesDiademaMicrohabitat,MonitoringOrnamental fisheryLocal regulation

scholarly journals Capillariosis in breeder discus (Symphysodon aequifasciatus) in Iran

2010 ◽  
Vol 55 (3) ◽  
pp. 253-259 ◽  
Author(s):  
Hooman Rahmati-Holasoo ◽  
Ebrahimzadeh Mousavi ◽  
Mehdi Soltani ◽  
Seyedhossein Hosseini ◽  
Masoomeh Ghadam ◽  
...  
Keyword(s):  
High Mortality ◽  
Bacterial Culture ◽  
Morphological Characteristics ◽  
Ornamental Fish ◽  
Aquarium Fish ◽  
The Past ◽  
Ornamental Fish Trade ◽  
Aseptic Conditions ◽  
Veterinary Faculty ◽  
Fish Trade

The global ornamental fish trade is a rapidly growing industry. Cultivation and propagation of ornamental fishes have been increasing in the last 20 years in Iran. Discus (Symphysodon aequifasciatus) from Cichlidae is one of the most popular and expensive aquarium fish. In the past few years farming of this fish has been well developed in Iran. Two breeder discus fish (Symphysodon aequifasciatus) from two different propagation centres (with high mortality) with signs of anorexia, loss of balance, moribundity and darkness in skin colour were referred to Laboratory of Aquatic Diseases of Veterinary Faculty, University of Tehran. After the survey of ectoparasites, necropsy was performed under aseptic conditions; bacterial culture on standard media was done and the alimentary canal was extruded. In both fish no ectoparasite was detected and no bacteria from these cases grew on the standard media. In internal survey 5 and 25 nematodes were detected in each fish. A high number of free eggs were observed in intestine of fish. Regarding morphological characteristics of the nematodes and their eggs, they were identified as Capillaria sp. Treatment of other fish with levamisole was effective and the loss was terminated. Some helminthes like Capillaria pterophylli Heinze, 1933, can cause a high mortality in cichlid aquarium fishes. This study showed that infection with some species of Capillaria could cause a heavy loss in ornamental fish from Cichlidae. Diagnosis of parasites of these fishes can help us to prevent high mortalities.

AN INDUSTRY ANALYSIS OF THE FRESHWATER ORNAMENTAL FISHERY WITH PARTICULAR REFERENCE TO THE SUPPLY OF BRAZILIAN FRESHWATER ORNAMENTALS TO THE UK MARKET

2008 ◽  
Vol 3 (1) ◽  
pp. 7-52 ◽  
Author(s):  
Gregory Prang
Keyword(s):  
Sustainable Development ◽  
Business Plan ◽  
Ornamental Fish ◽  
Market Potential ◽  
Export Market ◽  
Industry Analysis ◽  
Ornamental Fish Trade ◽  
The Uk ◽  
Fish Trade ◽  
Desk Research

The purpose of this research was to develop an understanding of the market potential and viability of establishing a sustainable ornamental fish trade in the Mamirauá Sustainable Development Reserve in Brazil. This analysis will complement and advise the project’s in-country investigations and business plan. The focus of the analysis was the export market (specifically UK) for ornamental fish. The project was undertaken primarily by desk research, complemented by interviews with a number stakeholders and participation in workshops.

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