Hui-Chen Lin

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• Doctor of Philosophy
• Professor at Tunghai University

永續發展的前提是，建立人文社會與自然生態系統間的互動關係，並務實觀察其相互影響及變遷驅力。社會與生態並非各自運作的系統，彼此具有相依關係；兩者的系統變遷也會相互反饋，對彼此的運作產生影響。歐盟會員國陸續在行之有年的「長期生態研究」（long-term ecological research, LTER）基地納入人文與社會資料觀測與收集，形成「長期社會生態研究」（long-term social-ecological research, LTSER）平台。LTSER需整合跨學科研究、與權益關係人共同生產知識及尋找問題解方，並配合地域特性，厚植地方知識。LTSER也反映出人地關係的調節有賴適當的制度介入，建立跨域協作機制，促成完整的社會生態監測，並制定多尺度跨域治理架構。本文定位為回顧性論文，對...

Xeruca formosensis is the only endemic species of fiddler crab on the west coast of Taiwan. However, its natural habitats and populations have been compromised by excessive anthropogenic activities and improper land use over the past four decades. In light of these changes, we sought to evaluate the genetic diversity and gene flow of the species by...

Many factors affect male fiddler crab courting and female choice during underground mating, including claw-waving patterns, claw-waving frequency, hood structures, burrow quality, and visible and ultraviolet signals of the major claw. Under food-limited conditions, fiddler crabs decrease their investments in reproduction-e.g., lower their claw-wavi...

Brachyurans inhabit a variety of habitats and have evolved diverse osmoregulatory patterns. Gills, antennal glands and a lung-like structure are important organs of crabs that maintain their homeostasis in different habitats. Species use different processes to regulate ions in the antennal gland, especially those with high terrestriality such as Gr...

Algal reefs are one of the world's rare and poorly understood ecosystems. They are mainly distributed in the Mediterranean Sea, but one notable exception-an intertidal algal reef ecosystem in northwestern Taiwan-stretches for 27 km along the coast of Taoyuan, making it probably the largest algal reef coast found in shallow water. Despite the reef's...

A neuropeptide (Sco-CHH-L), belonging to the crustacean hyperglycemic hormone (CHH) superfamily and preferentially expressed in the pericardial organs (POs) of the mud crab Scylla olivacea, was functionally and structurally studied. Its expression levels were significantly higher than the alternative splice form (Sco-CHH) in the POs, and increased...

The fiddler crab, Austruca lactea inhabits tidal flat areas and is widely distributed across Japan, the Korean Peninsula, China, Taiwan and northern Vietnam. Fiddler crab habitat is being lost rapidly due to human impacts and this species is currently listed as endangered in Japan. We studied the population genetic structure of A. lactea using mito...

Gills and the antennal gland are ion-regulatory organs in crabs. Previous studies have suggested that the differences in the morphology and ion regulation of gills and accessory respiratory organs between ocypodid and grapsid species are related to their distinct evolutionary transition to land habitats. In addition, Na⁺, K⁺-ATPase (NKA) activity a...

To elucidate the effects of environmental factors on the richness and diversity of benthic species, this study investigates the hydrology, water quality and physicochemical conditions of the soil around a coastal wetland in Central Taiwan. Samples were extracted monthly from 20 sites around the coastal wetland for one year and analyzed by redundanc...

Two major strategies are used by most fish to maintain energy homeostasis under hypoxia. One is to utilize alternative metabolic pathways to increase energy production, and the other is to limit energy expenditure by suppressing energy-consuming processes, especially ionoregulation. Some anabantoid fishes live in tropical rivers, where hypoxic envi...

Understanding physiological responses and osmoregulatory mechanisms for dealing with salinity stress is essential to clarify how amphibians living in coastal areas adapt to fluctuating salinity levels. Euryhaline species are rare among reported tadpole species inhabiting saline habitats, and few studies addressed the osmoregulatory mechanisms. We q...

Organisms face direct challenges from a variety of abiotic factors in the environment. Changes in dissolved oxygen are one of the most common types of these challenges. The gills of some fish species can compensate for ambient oxygen changes by exhibiting morphological and functional plasticity that give the gill the ability to modify its structure...

In recent years, applying ecological concepts into landscape designs to enhance biodiversity within urban areas has become an important strategy worldwide. A commonly adopted strategy for the development of systems is to estimate the ecological effectiveness of relative landscape mosaics. Biotope Area Factor (BAF) is a general methodology that is u...

Brachyuran crabs from diverse habitats show great differences in their osmoregulatory processes, especially in terms of the structural and physiological characteristics of the osmoregulatory organs. In crustaceans, the antennal glands are known to be important in osmoregulation, and they play a functional role analogous to that of the vertebrate ki...

Currently, information about the effect of forest management on biodiversity of subtropical plantation for-ests in Asia is quite limited. In this study, we compared the spider community structures and guild compositions of subtropical Cryptomeria japonica plantation forests receiving different degree of thinning (0, 25 and 50 %) in central Taiwan....

The sea snakes were transferred from a terrestrial environment to freshwater (FW) or seawater (SW) for 1 week, and then, Na+/K+-ATPase (NKA) activities of the salt gland (sublingual glands) and kidneys, the water content of the muscles, the body fluid osmolality, and Na+, Cl−, and K+ concentrations were measured. Results showed that the body fluid...

The nature of interactions between animals varies depending on local selection pressure, trophic status of the participants, and evolutionary circumstances [1-6]. Body coloration and other visual signals may also affect animal interactions [7, 8]. Game theory posits that if one species provides a "service" in exchange for a "goods," a mutualism may...

Ocypode stimpsoni is a highly terrestrial species of the Ocypodidae that faces challenges of both gas exchange and hypotonic stress when on land. The aim of this study was to investigate the impacts of terrestrial modifications on the ion regulatory mechanism of the gills in this semi-terrestrial crab. Our results showed that the lungs were the air...

Studies examining the effects of forest management on biodiversity in Asia are scarce and conducted mostly in temperate areas. In this study, the effects of the management on the biodiversity of a subtropical plantation forest were assessed by comparing the composition of spiders in Chamaecyparis formosensis plantations located in central Taiwan th...

The aim of the study was to test the hypothesis that the mechanism of glycogen metabolism has taken place in gills rather than in liver during Cd exposure. Male tilapia were exposed to 44.45 μM ambient Cd for 12h, and we found blood glucose significantly increased, however, lactate levels showed no significant changes. The glycogen phosphorylase (G...

All fish species in the Anabantoidei suborder are aquatic air-breathing fish. These species have an accessory air-breathing organ, called the labyrinth organ, in the branchial cavity and can engulf air at the surface of the water to assist in gas exchange. It is therefore necessary to examine the extent of gill modification among anabantoid fish sp...

Climate change affects organisms that inhabit not only in aerial but also in aquatic environments by making water more hypoxic and acidic. In the past, we evaluated morphological and functional variations in the gills of 12 species of aquatic air-breathing fishes. The aim of the present study is to examine the degree of gill modification in the aqu...

The aquatic air-breathing fish, Trichogaster microlepis, can be found in fresh water and estuaries. We further evaluated the changes in two important osmoregulatory enzymes, Na(+)/K(+)-ATPase (NKA) and vacuolar-type H(+)-ATPase (VHA), in the gills when fish were subjected to deionized water (DW), fresh water (FW), and salinated brackish water (sali...

Environmental contaminants, such as polycyclic aromatic hydrocarbons (PAHs), can disrupt the endocrine system and affect reproductive function of humans and wildlife. In this study, we exposed Japanese medaka (Oryzias latipes) to water-borne or food-spiked phenanthrene, an ubiquitous PAH, and investigated the chronic effects of the chemical on meda...

The purpose of this study was to identify the factor(s) which would enhance the Cd resistance as assessed by the metallothionein (MT) expression in tilapia larvae. Larvae were collected from parents that were pretreated respectively with Cd or saline. At the end of the 12-week experiment, the hepatic MT and Cd contents in the breeding female fish w...

Pavement cells and the mitochondria-rich cells (MRCs) are two of the main types of cells in fish gill epithelia. The pavement cells are generally responsible for gas exchange and MRCs for ion regulation. MRCs are found especially in the trailing edge and the interlamellar region of gill filament. In some species, MRCs are also observed in the gill...

The fish gill is a multifunctional organ responsible for gas exchange and ionic regulation. It is hypothesized that both morphological and functional differentiation can be found in the gills of the aquatic air-breathing fish, Trichogaster leeri. To test this, we used the air-breathing fish, Trichogaster leeri, to investigate various morphological/...

Because of their diverse habitats, crabs are excellent experimental species to study owing to the morphological changes and physiological adaptation that occur during their terrestrial invasion. Their hemolymphic osmoregulation in brackish water is crucial for a successful terrestrial invasion. Crabs can actively uptake or excrete ions upon salinit...

Scylla paramamosain is a euryhaline marine crab that can actively regulate its osmotic pressure of the hemolymph. We investigated the expression of Na,K-ATPase in the osmoregulatory organs, including anterior gills, posterior gills, antennal glands, and midgut. Our cDNA sequencing of the Na,K-ATPase alpha-subunit revealed no isoforms in any of the...

Temperature, salinity, food ration and interactions among them had significant effects on overall growth of hatchlings of the self-fertilizing hermaphrodite Rivulus marmoratus. Low temperature (19° C) suppressed growth. At 26° C, the treatment groups at 12 and 40‰ salinity had higher final wet masses than the group at 1‰. When provided with high fo...

Respiration and ion regulation are the two principal functions of teleostean gills. Mainly found in the gill filaments of fish, mitochondria-rich cells (MRCs) proliferate to increase the ionoregulatory capacity of the gill in response to osmotic challenges. Gill lamellae consist mostly of pavement cells, which are the major site of gas exchange. Al...

This study aims to give an integrative description of the correlation of physiological parameters of osmoregulation and the habitats of the four common Uca species in Taiwan. Uca arcuata inhabits areas close to fresh water in the upper beach. Uca formosensis is only found in the areas near the mean high water of spring tide where there is a clear d...

This study examined how developing fish larvae regulate their Ca2+ balance for acclimation to low ambient Ca2+. Calcium balance in newly hatched larvae was examined individually. Developing larvae not only increased Ca2+ influx but also decreased Ca2+ efflux when they were acclimated to low-Ca2+ environments. After acclimation for 8 days, the influ...

Exposing female tilapia to Cd did not affect reproduction and egg quality, nor the survival of their offspring. The LT50 of Cd-exposed larvae (within 24 h post hatching) from Cd-treated female Oreochromis mossambicus (mean ±S.E.=10·9±0·5 days, n=4) was greater than that of Cd-exposed larvae from control females (6·9± 1·2 days, n=4). A substantial a...

By removing a small amount of yolk, tilapia embryos were dechorionated successfully as early as 30 h after Fertilization. Using DASPEI, a mitochondrion-specific fluorescent stain, we were able to determine the first appearance of the mitochondrion rich cells on the surface of the yolk sac 26 h after fertilization (c. 2 h after the beginning of gast...

The present study compares the rates of Ca2+ uptake and Cd2+ accumulation in tilapia (Oreochromis mossambicus) between larvae preexposed to Cd2+ and naive larvae. Preexposure to Cd2+ induces some form of adaptation that attenuates the effects of Cd2+ later on. Exposure to Cd2+ decreased the uptake of Ca2+ but did not suppress the accumulation rate...

The toxic effects of Cd2+ on Ca2+ influx kinetics in developing tilapia (Oreochromis mossambicus) larvae were evaluated. Addition of 20 g l-1 of Cd2+ to the environment of 0 and 3 day-old larvae competitively inhibited the Ca2+ uptake within 4h resulting in a great increase in Km values for Ca2+ influx (19.3 and 17.4 fold, respectively) as compared...

Branchial mitochondria-rich (MR) cells were examined on the afferent side of gill filaments in tilapia (Oreochromis mossambicus) acclimated to different hypotonic environments, local fresh water (LFW), hard fresh water (HFW) and 5‰ salt water (SW). Scanning electron micrographs (SEM) identified three types of apical surfaces of the MR cells, wavy c...

Newly-hatched embryos of Oreochromis mossambicus were reared in freshwater and treated with 0 (control), 50 (low level) or 200 (high level) ppb cadmium for 4 days. Changes in the numbers and dimensions of chloride cell apical crypts on the skin of the free embryos were examined daily using scanning electron microscopy. The apical crypts of the chlo...

The Cd toxicity, its accumulation and effects on the development and the tissue water and cation contents of tilapia larvae (Oreochromis mossambicus) were studied. Both 96-h LC50 and the accumulation rate have dramatic changes following larval development and reveal an inverse relation: LC50 of 0-(newly hatched), 1-, 2-, 3- and 7-day-old larvae wer...

The tropical and subtropical estuarine fish Rivulus marmoratus is known for its synchronous, self-fertilizing hermaphroditism. It matures within 3 mo and can produce eggs throughout the year. These features would allow a particular strain to quickly colonize refuge such as crab holes in the high intertidal zone habitat. However, a high strain diver...

The mangrove-dwelling fish, Rivulus marmoratus, is the only vertebrate that is a synchronous, internally self-fertilizing hermaphrodite. This unique reproductive mode yields offspring with little genetic variation, which offers significant advantages for the use of this species in bioassays. We conducted acute (96 h) LC50 tests of Cd toxicity under...

This study took place between July 1985 and April 1986. Uca lactea lactea has a semi-lunar reproductive cycle. It was most active after spring tide when the ground was wet. The peak of mating frequency usually occurred two days after spring tide, but could be delayed by unsuitable weather conditions. The prominent display equipment, the major cheli...