External and internal morphology, and feeding ability of yellow seahorse Hippocampus kuda (Bleeker, 1852) early juveniles

Captive breeding programmes are increasingly relied upon for threatened species management. Changes in morphology can occur in captivity, often with unknown consequences for reintroductions. Few studies have examined the morphological changes that occur in captive animals compared with wild animals. Further, the effect of multiple generations being maintained in captivity, and the potential effects of captivity on sexual dimorphism remain poorly understood. We compared external and internal morphology of captive and wild animals using house mouse ( Mus musculus ) as a model species. In addition, we looked at morphology across two captive generations, and compared morphology between sexes. We found no statistically significant differences in external morphology, but after one generation in captivity there was evidence for a shift in the internal morphology of captive-reared mice; captive-reared mice (two generations bred) had lighter combined kidney and spleen masses compared with wild-caught mice. Sexual dimorphism was maintained in captivity. Our findings demonstrate that captive breeding can alter internal morphology. Given that these morphological changes may impact organismal functioning and viability following release, further investigation is warranted. If the morphological change is shown to be maladaptive, these changes would have significant implications for captive-source populations that are used for reintroduction, including reduced survivorship.

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Corallimorpharians (Anthozoa: Corallimorpharia) from the Argentinean Sea

Zootaxa ◽

10.11646/zootaxa.4688.2.5 ◽

2019 ◽

Vol 4688 (2) ◽

pp. 249-263

Author(s):

DANIEL LAURETTA ◽

MARIANO I. MARTINEZ

Keyword(s):

Deep Sea ◽

Submarine Canyon ◽

Sister Group ◽

Southwestern Atlantic ◽

Sea Anemones ◽

Northern Patagonia ◽

Stony Corals ◽

Internal Morphology ◽

Southwestern Atlantic Ocean ◽

First Time

Corallimorpharians are a relative small group of anthozoan cnidarians, also known as jewel sea anemones. They resemble actiniarian sea anemones in lacking a skeleton and being solitary, but resemble scleractinian corals in external and internal morphology, and they are considered to be the sister group of the stony corals. Corynactis carnea (=Sphincteractis sanmatiensis) is a small, common and eye catching species that inhabits the shallow water of northern Patagonia and the Argentinean shelf up to 200 m depth. Corallimorphus rigidus is registered for the first time from the southwestern Atlantic Ocean. It is a rather big and rare species that inhabits only the deep sea. Only two specimens were found at 2934 m depth in Mar del Plata submarine canyon, in an area under the influence of the Malvinas current, which may explain its occurrence. These two species are the only two known jewel sea anemones in the Argentinean sea and are reported and described herein.

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The first report of Vibrio harveyi infection in the sea horse Hippocampus kuda Bleekers 1852 in the Philippines

Aquaculture Research ◽

10.1111/j.1365-2109.2004.01109.x ◽

2004 ◽

Vol 35 (13) ◽

pp. 1292-1294 ◽

Cited By ~ 28

Author(s):

Eleonor A Tendencia

Keyword(s):

Vibrio Harveyi ◽

The Philippines ◽

First Report ◽

Hippocampus Kuda

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Internal Morphology Related to Tube-Building in the Meiobenthic Copepod Pseudostenhelia wellsi

Journal of Crustacean Biology ◽

10.2307/1548635 ◽

1987 ◽

Vol 7 (1) ◽

pp. 171 ◽

Cited By ~ 8

Author(s):

J. Williams-Howze ◽

H. Silverman ◽

J. W. Fleeger

Keyword(s):

Internal Morphology

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Controlling the internal morphology of aqueous core-PLGA shell microcapsules: promoting the internal phase separation via alcohol addition

Pharmaceutical Development and Technology ◽

10.1080/10837450.2018.1558238 ◽

2019 ◽

Vol 24 (6) ◽

pp. 671-679 ◽

Cited By ~ 3

Author(s):

Samer R. Abulateefeh ◽

Ghada K. Al-Adhami ◽

Mahmoud Y. Alkawareek ◽

Alaaldin M. Alkilany

Keyword(s):

Phase Separation ◽

Internal Morphology ◽

Internal Phase ◽

Aqueous Core

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Aspects of the geomorphology, genesis and environmental significance of earth hummocks (thúfur, pounus): miniature cryogenic mounds

Progress in Physical Geography Earth and Environment ◽

10.1191/0309133305pp440ra ◽

2005 ◽

Vol 29 (2) ◽

pp. 139-155 ◽

Cited By ~ 37

Author(s):

Stefan Grab

Keyword(s):

Current Knowledge ◽

Thermal Characteristics ◽

Environmental Research ◽

Environmental Significance ◽

Research Gaps ◽

Frozen Ground ◽

The Past ◽

Internal Morphology ◽

Differential Frost Heave ◽

Made In

Miniature varieties of cryogenic mounds that are capable of forming in seasonally frozen ground are commonly referred to as earth hummocks (e.g., North America), thúfur (e.g., Greenland and Iceland) and pounus (Fennoscandia). Over the past few decades there has been a consistent interest to study earth hummocks from a variety of environmental settings. This review summarizes the current knowledge of earth hummocks, highlighting aspects on the external and internal morphology, and thermal characteristics, which may assist to explain hummock formation. Several hypotheses have been proposed for the genesis of earth hummocks, including the ‘cryoexpulsion’ of clasts, hydrostatic and cryostatic pressure, cellular circulation, and differential frost heave. These hypotheses are critically evaluated and some research gaps identified. It emerges that considerable advances have been made towards an improved understanding of earth hummock development, modification and disintegration. Much progress has been made in the application of earth hummock studies to a variety of environmental research approaches such as palaeoenvironmental reconstructions and assessing their impact on hillslope drainage.

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Internal morphology of the nonsyndromic prematurely fused sagittal suture in the human skull – A preliminary micro-CT study

HOMO ◽

10.1016/j.jchb.2015.03.002 ◽

2015 ◽

Vol 66 (5) ◽

pp. 399-413 ◽

Cited By ~ 1

Author(s):

W. Nowaczewska ◽

G. Ziółkowski ◽

B. Dybała

Keyword(s):

Micro Ct ◽

Sagittal Suture ◽

Human Skull ◽

Internal Morphology

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Taxonomy of the genus Thyonella (Holothuroidea: Dendrochirotida), with mention of the first record of T. sabanillaensis from the southwestern Atlantic Ocean

Zootaxa ◽

10.11646/zootaxa.4527.1.6 ◽

2018 ◽

Vol 4527 (1) ◽

pp. 75

Author(s):

LUCIANA MARTINS

Keyword(s):

Pacific Ocean ◽

Atlantic Ocean ◽

First Record ◽

Morphological Characters ◽

Sem Analysis ◽

Southwestern Atlantic ◽

Internal Morphology ◽

The Pacific ◽

Southwestern Atlantic Ocean ◽

The Pacific Ocean

The genus Thyonella currently comprises four species which occur in the Atlantic and Pacific Oceans. Thyonella mexicana is the only species known to occur in the Pacific Ocean. The main morphological characters used to distinguish Thyonella species are their dermal ossicles. Since the differences among these characters are subtle, this contribution provides a detailed description and comparison of the ossicle assemblage of the concerned taxa. In addition, description of the internal morphology of three of the concerned species is also provided. Further, this study reports on the first record of Thyonella sabanillaensis for the Southwestern Atlantic. A worldwide revision of the distributional records of Thyonella species is presented and their taxonomy is discussed, concluding that some traditional taxonomic characters should be used cautiously. A brief discussion about the importance of SEM analysis is also provided.

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MORPHOPHYSIOLOGICAL CHARACTERISTICS OF ARABIC COFFEE

Nativa ◽

10.31413/nativa.v9i1.11066 ◽

2021 ◽

Vol 9 (1) ◽

pp. 36-43

Author(s):

Lucas Aparecido Manzani Lisboa ◽

Matheus Luís Oliveira Cunha ◽

Fernando Takayuki Nakayama ◽

Paulo Alexandre Monteiro de Figueiredo ◽

Ronaldo da Silva Viana ◽

...

Keyword(s):

Plant Physiology ◽

Coffea Arabica ◽

Plant Morphology ◽

Co2 Assimilation ◽

Climatic Conditions ◽

Assimilation Rate ◽

Abaxial Epidermis ◽

Internal Morphology ◽

Use Efficiency ◽

Best Fit

The understanding of the behavior of each cultivar under adverse climatic conditions is important in the choice of plants that best fit the region to be inserted. Due to the large number of cultivars available on the market it makes it difficult for producers to choose which material to plant. In view of the above, this study aimed to know the morphophysiological characteristics of coffee. The experimental design was in randomized blocks with 10 treatments, that is, arabic coffee varieties: Catuai IAC62; Catuai IAC99; Ouro IAC4397; Tupi RN IAC1669-13; Obatã IAC1669-20; Mundo Novo IAC379-24; Mundo Novo IAC 388-17-2; Mundo Novo SH3 Faz São José; Bourbon IACJ15 and Icatu IAC 2944-11 and with four replications totaling 40 plots, where each plot was composed of seven plants. The Mundo Novo IAC 388-17-2 coffee variety shows higher yield in the seventh year of cultivation. Variety of Bourbon IACJ15 coffee presented water use efficiency (EUW) which did not reflect in higher productivity. The Catuai V IAC99 arabica coffee variety stood out in the internal morphology of the leaves. The thickness of the adaxial and abaxial epidermis (TADE and TABE) and the CO2 assimilation rate (A) showed negative correlations with the productivity of processed coffee bags. Keywords: Coffea arabica; plant morphology; plant physiology; varieties.

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