The routine metabolism of the guapote, <i>Cichlasoma managuense</i> (Günther 1869), related to body weight and temperature

Lezama, E; Günther, J.

doi:10.1111/j.1095-8649.1992.tb02666.x

Cited by 9 publications

(5 citation statements)

References 16 publications

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“…The sit-and-pursue strategy is relatively common among extant cichlids, and has been described for Cichlasoma (e.g., [250]), Crenicichla (e.g., [251]), Hemichromis (e.g., [252]), many Lamprologini (e.g., [253,254]), Perissodini (e.g., [255]) and Haplochromini (e.g., [253,256,257]). In contrast, among African cichlids, the sit-and-wait strategy is only known for the piscivorous genus Nimbochromis of the Lake Malawi Haplochromini.…”

Section: Palaeoecology Of †Warilochromismentioning

confidence: 99%

New haplochromine cichlid from the upper Miocene (9–10 MYA) of Central Kenya

2020

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Background: The diversification process known as the Lake Tanganyika Radiation has given rise to the most speciose clade of African cichlids. Almost all cichlid species found in the lakes Tanganyika, Malawi and Victoria, comprising a total of 12-16 tribes, belong to this clade. Strikingly, all the species in the latter two lakes are members of the tribe Haplochromini, whose origin remains unclear. The 'out of Tanganyika' hypothesis argues that the Haplochromini emerged simultaneously with other cichlid tribes and lineages in Lake Tanganyika, presumably about 5-6 million years ago (MYA), and that their presence in the lakes Malawi and Victoria and elsewhere in Africa today is due to later migrations. In contrast, the 'melting pot Tanganyika hypothesis' postulates that Haplochromini emerged in Africa prior to the formation of Lake Tanganyika, and that their divergence could have begun about 17 MYA. Haplochromine fossils could potentially resolve this debate, but such fossils are extremely rare. Results: Here we present a new fossil haplochromine from the upper Miocene site Waril (9-10 million years) in Central Kenya. Comparative morphology, supported by Micro-CT imaging, reveals that it bears a unique combination of characters relating to dentition, cranial bones, caudal skeleton and meristic traits. Its most prominent feature is the presence of exclusively unicuspid teeth, with canines in the outer tooth row. †Warilochromis unicuspidatus gen. et sp. nov. shares this combination of characters solely with members of the Haplochromini and its lacrimal morphology indicates a possible relation to the riverine genus Pseudocrenilabrus. Due to its fang-like dentition and non-fusiform body, †W. unicuspidatus gen. et sp. nov. might have employed either a sit-and-pursue or sit-and-wait hunting strategy, which has not been reported for any other fossil haplochromine cichlid. Conclusions: The age of the fossil (9-10 MYA) is incompatible with the 'out of Tanganyika' hypothesis, which postulates that the divergence of the Haplochromini began only 5-6 MYA. The presence of this fossil in an upper Miocene palaeolake in the Central Kenya Rift, as well as its predatory lifestyle, indicate that Haplochromini were already an important component of freshwater drainages in East Africa at that time.

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Section: Palaeoecology Of †Warilochromismentioning

confidence: 99%

New haplochromine cichlid from the upper Miocene (9–10 MYA) of Central Kenya

2020

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“…Like most of the organisms, the respiratory rate of fish is influenced by individual size [4,15,16,17,18]. Evidence indicates that before fish reach maturation, the body mass seems to contribute significantly to the oxygen consumption when fish are in the period of fast growth [19].…”

Section: Resultsmentioning

confidence: 99%

“…A measurement of the metabolism of fish is necessary in order to estimate the requirements for promoting and sustaining growth [1]. Studies on oxygen consumption and ammonia extraction in fish can directly reflect the regularity of metabolism, and can also reveal the physiological and living conditions of fish [2,3,4,5]. In intensive aquaculture, such measurement is also critical to control the water quality and maximize the production potential of recirculation systems [6].…”

Section: Introductionmentioning

confidence: 99%

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Oxygen Consumption and Ammonia Excretion of Kashgarian Loach Triplophysa Yarkandensis (Day, 1877) Under Different Body Weights

Wang¹,

Wei²,

Nie³

et al. 2016

International Journal of Innovative Studies in Aquatic Biology

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The oxygen consumption and ammonia excretion of Kashgarian loach Triplophysa yarkandensis (Day, 1877) under different body weights were studied in laboratory condition. The specific oxygen consumption rate (SOC) and specific ammonia excretion rate (SAE) decreased with increasing body weight, while the total oxygen consumption rate and total ammonia excretion rate increased with increasing body weight. The relationship between specific oxygen consumption rate and body weight (x) can be expressed as SOC =-0.246Ln(x) + 0.8395 (R 2 = 0.965), and the relationship between specific ammonia excretion rate and body weight can be expressed as SAE =-0.1252x +2.5558 (R 2 = 0.9326). Results from the present study provide fundamental information on the routine metabolic requirements of T.yarkandensis. Such information may enhance the effectiveness of intensive rearing procedures in T.yarkandensis, and the success of live fish transportation.

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“… =3.87 W −0.72 ( C. urophthalmus , Martinez‐Palacios & Ross 1986) =3.09136 W −0.36857 ( V. synspila , Martinez‐Palacios, Chavez‐Sanchez & Ross 1996) =422.5 W −0.28 ( P. managüense , Lezama & Günther 1992) …”

Section: Biotechnology Development For Native Cichlidsmentioning

confidence: 99%

The culture of cichlids of southeastern Mexico

Pérez-Sánchez

Páramo-Delgadillo

2008

Aquaculture Res

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In Mexico, aquaculture is a growing sector, but it continues to be developed using non‐native species. The natural ecosystems of the lowland humid tropics of southeastern Mexico have been well‐described by ecologists and are host to a very high diversity of species, including a substantial ichthyofauna. Cichlid fish, commonly known in southeast Mexico as ‘mojarras’, are an important fish resource and are widely consumed. Several species are now under considerable pressure and consequently the generation of biotechnology for the culture of native fish species is necessary and worthwhile. This paper examines and describes the experiences and knowledge generated over recent years regarding the aquaculture of native cichlids in the southeast of Mexico. Although the scientific and technological capacity for research and development for native species culture exists, there is an evident lack of information on new technologies among producers, as scientific research is not translating fully into technical assistance. Research and extension should be emphasized in order to develop a comprehensive knowledge base on native species and to enable their cultivation.

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The routine metabolism of the guapote, Cichlasoma managuense (Günther 1869), related to body weight and temperature

Cited by 9 publications

References 16 publications

New haplochromine cichlid from the upper Miocene (9–10 MYA) of Central Kenya

New haplochromine cichlid from the upper Miocene (9–10 MYA) of Central Kenya

Oxygen Consumption and Ammonia Excretion of Kashgarian Loach Triplophysa Yarkandensis (Day, 1877) Under Different Body Weights

The culture of cichlids of southeastern Mexico

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